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1 | \input texinfo.tex @c -*-texinfo-*- |
2 | @c @ifnothtml | |
3 | @c %**start of header | |
d7f8491b | 4 | @setfilename gccinstall.info |
f42974dc DW |
5 | @settitle Installing GCC |
6 | @setchapternewpage odd | |
7 | @c %**end of header | |
8 | @c @end ifnothtml | |
9 | ||
10 | @c Specify title for specific html page | |
11 | @ifset indexhtml | |
12 | @settitle Installing GCC | |
13 | @end ifset | |
14 | @ifset specifichtml | |
15 | @settitle Host/Target specific installation notes for GCC | |
16 | @end ifset | |
67b1fbb9 KG |
17 | @ifset prerequisiteshtml |
18 | @settitle Prerequisites for GCC | |
19 | @end ifset | |
f42974dc DW |
20 | @ifset downloadhtml |
21 | @settitle Downloading GCC | |
22 | @end ifset | |
23 | @ifset configurehtml | |
24 | @settitle Installing GCC: Configuration | |
25 | @end ifset | |
26 | @ifset buildhtml | |
27 | @settitle Installing GCC: Building | |
28 | @end ifset | |
29 | @ifset testhtml | |
30 | @settitle Installing GCC: Testing | |
31 | @end ifset | |
32 | @ifset finalinstallhtml | |
33 | @settitle Installing GCC: Final installation | |
34 | @end ifset | |
35 | @ifset binarieshtml | |
36 | @settitle Installing GCC: Binaries | |
37 | @end ifset | |
73e2155a JM |
38 | @ifset oldhtml |
39 | @settitle Installing GCC: Old documentation | |
40 | @end ifset | |
aed5964b JM |
41 | @ifset gfdlhtml |
42 | @settitle Installing GCC: GNU Free Documentation License | |
43 | @end ifset | |
f42974dc | 44 | |
aed5964b | 45 | @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
d7f755c3 | 46 | @c 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
f42974dc DW |
47 | @c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com |
48 | ||
d7f755c3 PB |
49 | @c IMPORTANT: whenever you modify this file, run `install.texi2html' to |
50 | @c test the generation of HTML documents for the gcc.gnu.org web pages. | |
51 | @c | |
52 | @c Do not use @footnote{} in this file as it breaks install.texi2html! | |
53 | ||
f42974dc DW |
54 | @c Include everything if we're not making html |
55 | @ifnothtml | |
56 | @set indexhtml | |
57 | @set specifichtml | |
67b1fbb9 | 58 | @set prerequisiteshtml |
f42974dc DW |
59 | @set downloadhtml |
60 | @set configurehtml | |
61 | @set buildhtml | |
62 | @set testhtml | |
63 | @set finalinstallhtml | |
64 | @set binarieshtml | |
73e2155a | 65 | @set oldhtml |
aed5964b | 66 | @set gfdlhtml |
f42974dc DW |
67 | @end ifnothtml |
68 | ||
69 | @c Part 2 Summary Description and Copyright | |
bdefb2ab | 70 | @copying |
aed5964b | 71 | Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
d7f755c3 | 72 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. |
aed5964b JM |
73 | @sp 1 |
74 | Permission is granted to copy, distribute and/or modify this document | |
b3a8389d | 75 | under the terms of the GNU Free Documentation License, Version 1.2 or |
aed5964b JM |
76 | any later version published by the Free Software Foundation; with no |
77 | Invariant Sections, the Front-Cover texts being (a) (see below), and | |
78 | with the Back-Cover Texts being (b) (see below). A copy of the | |
79 | license is included in the section entitled ``@uref{./gfdl.html,,GNU | |
80 | Free Documentation License}''. | |
81 | ||
82 | (a) The FSF's Front-Cover Text is: | |
83 | ||
84 | A GNU Manual | |
85 | ||
86 | (b) The FSF's Back-Cover Text is: | |
87 | ||
88 | You have freedom to copy and modify this GNU Manual, like GNU | |
89 | software. Copies published by the Free Software Foundation raise | |
90 | funds for GNU development. | |
bdefb2ab | 91 | @end copying |
f42974dc | 92 | @ifinfo |
bdefb2ab | 93 | @insertcopying |
f42974dc | 94 | @end ifinfo |
c3cb54c6 | 95 | @dircategory Software development |
802f6d4b JM |
96 | @direntry |
97 | * gccinstall: (gccinstall). Installing the GNU Compiler Collection. | |
98 | @end direntry | |
f42974dc DW |
99 | |
100 | @c Part 3 Titlepage and Copyright | |
101 | @titlepage | |
102 | @sp 10 | |
103 | @comment The title is printed in a large font. | |
ef88b07d | 104 | @center @titlefont{Installing GCC} |
f42974dc DW |
105 | |
106 | @c The following two commands start the copyright page. | |
107 | @page | |
ef88b07d | 108 | @vskip 0pt plus 1filll |
bdefb2ab | 109 | @insertcopying |
f42974dc DW |
110 | @end titlepage |
111 | ||
112 | @c Part 4 Top node and Master Menu | |
113 | @ifinfo | |
114 | @node Top, , , (dir) | |
115 | @comment node-name, next, Previous, up | |
116 | ||
117 | @menu | |
118 | * Installing GCC:: This document describes the generic installation | |
119 | procedure for GCC as well as detailing some target | |
f9047ed3 | 120 | specific installation instructions. |
f42974dc DW |
121 | |
122 | * Specific:: Host/target specific installation notes for GCC. | |
123 | * Binaries:: Where to get pre-compiled binaries. | |
124 | ||
73e2155a JM |
125 | * Old:: Old installation documentation. |
126 | ||
aed5964b | 127 | * GNU Free Documentation License:: How you can copy and share this manual. |
f42974dc DW |
128 | * Concept Index:: This index has two entries. |
129 | @end menu | |
130 | @end ifinfo | |
131 | ||
132 | @c Part 5 The Body of the Document | |
133 | @c ***Installing GCC********************************************************** | |
6cfb3f16 | 134 | @ifnothtml |
f42974dc DW |
135 | @comment node-name, next, previous, up |
136 | @node Installing GCC, Binaries, , Top | |
6cfb3f16 | 137 | @end ifnothtml |
f42974dc | 138 | @ifset indexhtml |
f42974dc DW |
139 | @ifnothtml |
140 | @chapter Installing GCC | |
141 | @end ifnothtml | |
142 | ||
143 | The latest version of this document is always available at | |
f9047ed3 | 144 | @uref{http://gcc.gnu.org/install/,,http://gcc.gnu.org/install/}. |
f42974dc DW |
145 | |
146 | This document describes the generic installation procedure for GCC as well | |
f9047ed3 | 147 | as detailing some target specific installation instructions. |
f42974dc | 148 | |
f9047ed3 JM |
149 | GCC includes several components that previously were separate distributions |
150 | with their own installation instructions. This document supersedes all | |
eea81d3e | 151 | package specific installation instructions. |
f42974dc | 152 | |
f9047ed3 | 153 | @emph{Before} starting the build/install procedure please check the |
f42974dc | 154 | @ifnothtml |
eea81d3e | 155 | @ref{Specific, host/target specific installation notes}. |
f42974dc | 156 | @end ifnothtml |
c009f01f | 157 | @ifhtml |
f9047ed3 | 158 | @uref{specific.html,,host/target specific installation notes}. |
c009f01f | 159 | @end ifhtml |
f9047ed3 | 160 | We recommend you browse the entire generic installation instructions before |
f42974dc DW |
161 | you proceed. |
162 | ||
c009f01f | 163 | Lists of successful builds for released versions of GCC are |
daf2f129 | 164 | available at @uref{http://gcc.gnu.org/buildstat.html}. |
c009f01f JJ |
165 | These lists are updated as new information becomes available. |
166 | ||
f9047ed3 | 167 | The installation procedure itself is broken into five steps. |
f42974dc DW |
168 | |
169 | @ifinfo | |
170 | @menu | |
67b1fbb9 | 171 | * Prerequisites:: |
f42974dc DW |
172 | * Downloading the source:: |
173 | * Configuration:: | |
174 | * Building:: | |
175 | * Testing:: (optional) | |
176 | * Final install:: | |
177 | @end menu | |
178 | @end ifinfo | |
c009f01f | 179 | @ifhtml |
f42974dc | 180 | @enumerate |
f9047ed3 | 181 | @item |
67b1fbb9 KG |
182 | @uref{prerequisites.html,,Prerequisites} |
183 | @item | |
f42974dc | 184 | @uref{download.html,,Downloading the source} |
f42974dc | 185 | @item |
f9047ed3 JM |
186 | @uref{configure.html,,Configuration} |
187 | @item | |
188 | @uref{build.html,,Building} | |
189 | @item | |
190 | @uref{test.html,,Testing} (optional) | |
f42974dc DW |
191 | @item |
192 | @uref{finalinstall.html,,Final install} | |
193 | @end enumerate | |
c009f01f | 194 | @end ifhtml |
f42974dc | 195 | |
38209993 | 196 | Please note that GCC does not support @samp{make uninstall} and probably |
f9047ed3 | 197 | won't do so in the near future as this would open a can of worms. Instead, |
f42974dc | 198 | we suggest that you install GCC into a directory of its own and simply |
38209993 | 199 | remove that directory when you do not need that specific version of GCC |
eea81d3e RO |
200 | any longer, and, if shared libraries are installed there as well, no |
201 | more binaries exist that use them. | |
f42974dc | 202 | |
73e2155a JM |
203 | @ifhtml |
204 | There are also some @uref{old.html,,old installation instructions}, | |
205 | which are mostly obsolete but still contain some information which has | |
206 | not yet been merged into the main part of this manual. | |
207 | @end ifhtml | |
208 | ||
f42974dc | 209 | @html |
b8db17af | 210 | <hr /> |
f42974dc DW |
211 | <p> |
212 | @end html | |
213 | @ifhtml | |
214 | @uref{./index.html,,Return to the GCC Installation page} | |
aed5964b | 215 | |
bdefb2ab | 216 | @insertcopying |
f42974dc DW |
217 | @end ifhtml |
218 | @end ifset | |
219 | ||
67b1fbb9 KG |
220 | @c ***Prerequisites************************************************** |
221 | @ifnothtml | |
222 | @comment node-name, next, previous, up | |
223 | @node Prerequisites, Downloading the source, , Installing GCC | |
224 | @end ifnothtml | |
225 | @ifset prerequisiteshtml | |
226 | @ifnothtml | |
227 | @chapter Prerequisites | |
228 | @end ifnothtml | |
229 | @cindex Prerequisites | |
230 | ||
231 | GCC requires that various tools and packages be available for use in the | |
232 | build procedure. Modifying GCC sources requires additional tools | |
233 | described below. | |
234 | ||
235 | @heading Tools/packages necessary for building GCC | |
236 | @table @asis | |
237 | @item ISO C90 compiler | |
80521187 | 238 | Necessary to bootstrap GCC, although versions of GCC prior |
67b1fbb9 KG |
239 | to 3.4 also allow bootstrapping with a traditional (K&R) C compiler. |
240 | ||
80521187 | 241 | To build all languages in a cross-compiler or other configuration where |
67b1fbb9 KG |
242 | 3-stage bootstrap is not performed, you need to start with an existing |
243 | GCC binary (version 2.95 or later) because source code for language | |
244 | frontends other than C might use GCC extensions. | |
245 | ||
246 | @item GNAT | |
247 | ||
248 | In order to build the Ada compiler (GNAT) you must already have GNAT | |
249 | installed because portions of the Ada frontend are written in Ada (with | |
250 | GNAT extensions.) Refer to the Ada installation instructions for more | |
251 | specific information. | |
252 | ||
253 | @item A ``working'' POSIX compatible shell, or GNU bash | |
254 | ||
255 | Necessary when running @command{configure} because some | |
256 | @command{/bin/sh} shells have bugs and may crash when configuring the | |
80521187 GP |
257 | target libraries. In other cases, @command{/bin/sh} or @command{ksh} |
258 | have disastrous corner-case performance problems. This | |
67b1fbb9 KG |
259 | can cause target @command{configure} runs to literally take days to |
260 | complete in some cases. | |
261 | ||
262 | So on some platforms @command{/bin/ksh} is sufficient, on others it | |
263 | isn't. See the host/target specific instructions for your platform, or | |
264 | use @command{bash} to be sure. Then set @env{CONFIG_SHELL} in your | |
265 | environment to your ``good'' shell prior to running | |
266 | @command{configure}/@command{make}. | |
267 | ||
daf2f129 | 268 | @command{zsh} is not a fully compliant POSIX shell and will not |
8a36672b | 269 | work when configuring GCC@. |
1b49d06f | 270 | |
67b1fbb9 KG |
271 | @item GNU binutils |
272 | ||
273 | Necessary in some circumstances, optional in others. See the | |
274 | host/target specific instructions for your platform for the exact | |
275 | requirements. | |
276 | ||
277 | @item gzip version 1.2.4 (or later) or | |
278 | @itemx bzip2 version 1.0.2 (or later) | |
279 | ||
280 | Necessary to uncompress GCC @command{tar} files when source code is | |
281 | obtained via FTP mirror sites. | |
282 | ||
e158a5fb MM |
283 | @item GNU make version 3.79.1 (or later) |
284 | ||
8a36672b | 285 | You must have GNU make installed to build GCC@. |
e158a5fb | 286 | |
f44a5ab6 | 287 | @item GNU tar version 1.14 (or later) |
67b1fbb9 KG |
288 | |
289 | Necessary (only on some platforms) to untar the source code. Many | |
290 | systems' @command{tar} programs will also work, only try GNU | |
291 | @command{tar} if you have problems. | |
292 | ||
e48d66a9 | 293 | @item GNU Multiple Precision Library (GMP) version 4.1 (or later) |
bda4d063 | 294 | |
70ec446f KG |
295 | Necessary to build GCC. If you do not have it installed in your |
296 | library search path, you will have to configure with the | |
8a877c9c KG |
297 | @option{--with-gmp} configure option. See also |
298 | @option{--with-gmp-lib} and @option{--with-gmp-include}. | |
bda4d063 | 299 | |
b5147de7 | 300 | @item MPFR Library version 2.2.1 (or later) |
bebf829d | 301 | |
70ec446f | 302 | Necessary to build GCC. It can be downloaded from |
b5147de7 KG |
303 | @uref{http://www.mpfr.org/}. The version of MPFR that is bundled with |
304 | GMP 4.1.x contains numerous bugs. Although GCC may appear to function | |
305 | with the buggy versions of MPFR, there are a few bugs that will not be | |
306 | fixed when using this version. It is strongly recommended to upgrade | |
307 | to the recommended version of MPFR. | |
bebf829d | 308 | |
8a877c9c KG |
309 | The @option{--with-mpfr} configure option should be used if your MPFR |
310 | Library is not installed in your default library search path. See | |
311 | also @option{--with-mpfr-lib} and @option{--with-mpfr-include}. | |
bebf829d | 312 | |
02809848 | 313 | @item @command{jar}, or InfoZIP (@command{zip} and @command{unzip}) |
b52be2c8 TT |
314 | |
315 | Necessary to build libgcj, the GCJ runtime. | |
316 | ||
67b1fbb9 KG |
317 | @end table |
318 | ||
319 | ||
320 | @heading Tools/packages necessary for modifying GCC | |
321 | @table @asis | |
0dce8934 | 322 | @item autoconf versions 2.13 and 2.59 |
67b1fbb9 KG |
323 | @itemx GNU m4 version 1.4 (or later) |
324 | ||
89acbae0 | 325 | Necessary when modifying @file{configure.ac}, @file{aclocal.m4}, etc.@: |
4f3ce03f | 326 | to regenerate @file{configure} and @file{config.in} files. Most |
5d75ba94 NN |
327 | directories require autoconf 2.59 (exactly), but the toplevel |
328 | still requires autoconf 2.13 (exactly). | |
67b1fbb9 | 329 | |
2d142abd | 330 | @item automake version 1.9.6 |
67b1fbb9 KG |
331 | |
332 | Necessary when modifying a @file{Makefile.am} file to regenerate its | |
ce5c1cf3 KC |
333 | associated @file{Makefile.in}. |
334 | ||
335 | Much of GCC does not use automake, so directly edit the @file{Makefile.in} | |
336 | file. Specifically this applies to the @file{gcc}, @file{intl}, | |
078e3ffe PB |
337 | @file{libcpp}, @file{libiberty}, @file{libobjc} directories as well |
338 | as any of their subdirectories. | |
ce5c1cf3 | 339 | |
ae8cacc6 | 340 | For directories that use automake, GCC requires the latest release in |
2d142abd | 341 | the 1.9.x series, which is currently 1.9.6. When regenerating a directory |
ae8cacc6 KC |
342 | to a newer version, please update all the directories using an older 1.9.x |
343 | to the latest released version. | |
ccfca4ae | 344 | |
4b794eaf | 345 | @item gettext version 0.14.5 (or later) |
4f3ce03f JM |
346 | |
347 | Needed to regenerate @file{gcc.pot}. | |
67b1fbb9 KG |
348 | |
349 | @item gperf version 2.7.2 (or later) | |
350 | ||
351 | Necessary when modifying @command{gperf} input files, e.g.@: | |
352 | @file{gcc/cp/cfns.gperf} to regenerate its associated header file, e.g.@: | |
353 | @file{gcc/cp/cfns.h}. | |
354 | ||
80521187 GP |
355 | @item DejaGnu 1.4.4 |
356 | @itemx Expect | |
357 | @itemx Tcl | |
67b1fbb9 | 358 | |
80521187 | 359 | Necessary to run the GCC testsuite; see the section on testing for details. |
67b1fbb9 KG |
360 | |
361 | @item autogen version 5.5.4 (or later) and | |
362 | @itemx guile version 1.4.1 (or later) | |
363 | ||
364 | Necessary to regenerate @file{fixinc/fixincl.x} from | |
365 | @file{fixinc/inclhack.def} and @file{fixinc/*.tpl}. | |
366 | ||
80521187 | 367 | Necessary to run @samp{make check} for @file{fixinc}. |
67b1fbb9 | 368 | |
ce5c1cf3 | 369 | Necessary to regenerate the top level @file{Makefile.in} file from |
67b1fbb9 KG |
370 | @file{Makefile.tpl} and @file{Makefile.def}. |
371 | ||
372 | @item GNU Bison version 1.28 (or later) | |
373 | Berkeley @command{yacc} (@command{byacc}) is also reported to work other | |
80521187 | 374 | than for GCJ. |
67b1fbb9 KG |
375 | |
376 | Necessary when modifying @file{*.y} files. | |
377 | ||
378 | Necessary to build GCC during development because the generated output | |
80521187 | 379 | files are not included in the SVN repository. They are included in |
67b1fbb9 KG |
380 | releases. |
381 | ||
382 | @item Flex version 2.5.4 (or later) | |
383 | ||
384 | Necessary when modifying @file{*.l} files. | |
385 | ||
386 | Necessary to build GCC during development because the generated output | |
80521187 | 387 | files are not included in the SVN repository. They are included in |
67b1fbb9 KG |
388 | releases. |
389 | ||
1a598a97 | 390 | @item Texinfo version 4.4 (or later) |
67b1fbb9 KG |
391 | |
392 | Necessary for running @command{makeinfo} when modifying @file{*.texi} | |
393 | files to test your changes. | |
394 | ||
cc5c2741 BM |
395 | Necessary for running @command{make dvi} or @command{make pdf} to |
396 | create printable documentation in DVI or PDF format. Texinfo version | |
397 | 4.8 or later is required for @command{make pdf}. | |
398 | ||
67b1fbb9 | 399 | Necessary to build GCC documentation during development because the |
80521187 | 400 | generated output files are not included in the SVN repository. They are |
67b1fbb9 KG |
401 | included in releases. |
402 | ||
403 | @item @TeX{} (any working version) | |
404 | ||
cc5c2741 BM |
405 | Necessary for running @command{texi2dvi} and @command{texi2pdf}, which |
406 | are used when running @command{make dvi} or @command{make pdf} to create | |
407 | DVI or PDF files, respectively. | |
67b1fbb9 | 408 | |
80521187 GP |
409 | @item SVN (any version) |
410 | @itemx SSH (any version) | |
67b1fbb9 | 411 | |
80521187 | 412 | Necessary to access the SVN repository. Public releases and weekly |
8a36672b | 413 | snapshots of the development sources are also available via FTP@. |
67b1fbb9 | 414 | |
80521187 | 415 | @item Perl version 5.6.1 (or later) |
67b1fbb9 KG |
416 | |
417 | Necessary when regenerating @file{Makefile} dependencies in libiberty. | |
4f3ce03f JM |
418 | Necessary when regenerating @file{libiberty/functions.texi}. |
419 | Necessary when generating manpages from Texinfo manuals. | |
a9fdd472 GK |
420 | Necessary when targetting Darwin, building libstdc++, |
421 | and not using @option{--disable-symvers}. | |
80521187 | 422 | Used by various scripts to generate some files included in SVN (mainly |
4f3ce03f | 423 | Unicode-related and rarely changing) from source tables. |
67b1fbb9 KG |
424 | |
425 | @item GNU diffutils version 2.7 (or later) | |
426 | ||
80521187 | 427 | Useful when submitting patches for the GCC source code. |
67b1fbb9 KG |
428 | |
429 | @item patch version 2.5.4 (or later) | |
430 | ||
431 | Necessary when applying patches, created with @command{diff}, to one's | |
432 | own sources. | |
433 | ||
434 | @end table | |
435 | ||
436 | @html | |
437 | <hr /> | |
438 | <p> | |
439 | @end html | |
440 | @ifhtml | |
441 | @uref{./index.html,,Return to the GCC Installation page} | |
442 | @end ifhtml | |
443 | @end ifset | |
444 | ||
f42974dc | 445 | @c ***Downloading the source************************************************** |
6cfb3f16 | 446 | @ifnothtml |
f42974dc | 447 | @comment node-name, next, previous, up |
67b1fbb9 | 448 | @node Downloading the source, Configuration, Prerequisites, Installing GCC |
6cfb3f16 | 449 | @end ifnothtml |
f42974dc | 450 | @ifset downloadhtml |
f42974dc DW |
451 | @ifnothtml |
452 | @chapter Downloading GCC | |
453 | @end ifnothtml | |
454 | @cindex Downloading GCC | |
455 | @cindex Downloading the Source | |
456 | ||
80521187 | 457 | GCC is distributed via @uref{http://gcc.gnu.org/svn.html,,SVN} and FTP |
eea81d3e | 458 | tarballs compressed with @command{gzip} or |
6cfb3f16 | 459 | @command{bzip2}. It is possible to download a full distribution or specific |
f42974dc DW |
460 | components. |
461 | ||
962e6e00 | 462 | Please refer to the @uref{http://gcc.gnu.org/releases.html,,releases web page} |
161d7b59 | 463 | for information on how to obtain GCC@. |
f42974dc | 464 | |
374716e7 BM |
465 | The full distribution includes the C, C++, Objective-C, Fortran, Java, |
466 | and Ada (in the case of GCC 3.1 and later) compilers. The full | |
467 | distribution also includes runtime libraries for C++, Objective-C, | |
468 | Fortran, and Java. In GCC 3.0 and later versions, the GNU compiler | |
469 | testsuites are also included in the full distribution. | |
f42974dc DW |
470 | |
471 | If you choose to download specific components, you must download the core | |
eea81d3e | 472 | GCC distribution plus any language specific distributions you wish to |
6c0a4eab | 473 | use. The core distribution includes the C language front end as well as the |
767094dd | 474 | shared components. Each language has a tarball which includes the language |
6c0a4eab | 475 | front end as well as the language runtime (when appropriate). |
f42974dc DW |
476 | |
477 | Unpack the core distribution as well as any language specific | |
478 | distributions in the same directory. | |
479 | ||
480 | If you also intend to build binutils (either to upgrade an existing | |
481 | installation or for use in place of the corresponding tools of your | |
482 | OS), unpack the binutils distribution either in the same directory or | |
483 | a separate one. In the latter case, add symbolic links to any | |
484 | components of the binutils you intend to build alongside the compiler | |
6cfb3f16 JM |
485 | (@file{bfd}, @file{binutils}, @file{gas}, @file{gprof}, @file{ld}, |
486 | @file{opcodes}, @dots{}) to the directory containing the GCC sources. | |
f42974dc DW |
487 | |
488 | @html | |
b8db17af | 489 | <hr /> |
f42974dc DW |
490 | <p> |
491 | @end html | |
492 | @ifhtml | |
493 | @uref{./index.html,,Return to the GCC Installation page} | |
494 | @end ifhtml | |
495 | @end ifset | |
496 | ||
497 | @c ***Configuration*********************************************************** | |
6cfb3f16 | 498 | @ifnothtml |
f42974dc DW |
499 | @comment node-name, next, previous, up |
500 | @node Configuration, Building, Downloading the source, Installing GCC | |
6cfb3f16 | 501 | @end ifnothtml |
f42974dc | 502 | @ifset configurehtml |
f42974dc DW |
503 | @ifnothtml |
504 | @chapter Installing GCC: Configuration | |
505 | @end ifnothtml | |
506 | @cindex Configuration | |
507 | @cindex Installing GCC: Configuration | |
508 | ||
509 | Like most GNU software, GCC must be configured before it can be built. | |
510 | This document describes the recommended configuration procedure | |
511 | for both native and cross targets. | |
512 | ||
38209993 LG |
513 | We use @var{srcdir} to refer to the toplevel source directory for |
514 | GCC; we use @var{objdir} to refer to the toplevel build/object directory. | |
515 | ||
80521187 | 516 | If you obtained the sources via SVN, @var{srcdir} must refer to the top |
38209993 LG |
517 | @file{gcc} directory, the one where the @file{MAINTAINERS} can be found, |
518 | and not its @file{gcc} subdirectory, otherwise the build will fail. | |
f42974dc | 519 | |
b4b0fb02 RO |
520 | If either @var{srcdir} or @var{objdir} is located on an automounted NFS |
521 | file system, the shell's built-in @command{pwd} command will return | |
522 | temporary pathnames. Using these can lead to various sorts of build | |
523 | problems. To avoid this issue, set the @env{PWDCMD} environment | |
524 | variable to an automounter-aware @command{pwd} command, e.g., | |
7ba4ca63 | 525 | @command{pawd} or @samp{amq -w}, during the configuration and build |
b4b0fb02 RO |
526 | phases. |
527 | ||
102b60d1 GP |
528 | First, we @strong{highly} recommend that GCC be built into a |
529 | separate directory than the sources which does @strong{not} reside | |
530 | within the source tree. This is how we generally build GCC; building | |
531 | where @var{srcdir} == @var{objdir} should still work, but doesn't | |
532 | get extensive testing; building where @var{objdir} is a subdirectory | |
533 | of @var{srcdir} is unsupported. | |
f42974dc | 534 | |
eea81d3e | 535 | If you have previously built GCC in the same directory for a |
f85b8d1a | 536 | different target machine, do @samp{make distclean} to delete all files |
377dfc82 GP |
537 | that might be invalid. One of the files this deletes is @file{Makefile}; |
538 | if @samp{make distclean} complains that @file{Makefile} does not exist | |
539 | or issues a message like ``don't know how to make distclean'' it probably | |
540 | means that the directory is already suitably clean. However, with the | |
541 | recommended method of building in a separate @var{objdir}, you should | |
542 | simply use a different @var{objdir} for each target. | |
f85b8d1a | 543 | |
38209993 LG |
544 | Second, when configuring a native system, either @command{cc} or |
545 | @command{gcc} must be in your path or you must set @env{CC} in | |
df002c7d DE |
546 | your environment before running configure. Otherwise the configuration |
547 | scripts may fail. | |
f42974dc | 548 | |
cc11cc9b | 549 | @ignore |
eea81d3e RO |
550 | Note that the bootstrap compiler and the resulting GCC must be link |
551 | compatible, else the bootstrap will fail with linker errors about | |
552 | incompatible object file formats. Several multilibed targets are | |
e69aa433 GP |
553 | affected by this requirement, see |
554 | @ifnothtml | |
555 | @ref{Specific, host/target specific installation notes}. | |
556 | @end ifnothtml | |
c009f01f | 557 | @ifhtml |
e69aa433 | 558 | @uref{specific.html,,host/target specific installation notes}. |
c009f01f | 559 | @end ifhtml |
cc11cc9b | 560 | @end ignore |
eea81d3e | 561 | |
f42974dc DW |
562 | To configure GCC: |
563 | ||
3ab51846 | 564 | @smallexample |
38209993 LG |
565 | % mkdir @var{objdir} |
566 | % cd @var{objdir} | |
eea81d3e | 567 | % @var{srcdir}/configure [@var{options}] [@var{target}] |
3ab51846 | 568 | @end smallexample |
f42974dc DW |
569 | |
570 | ||
ef88b07d | 571 | @heading Target specification |
f42974dc DW |
572 | @itemize @bullet |
573 | @item | |
38209993 | 574 | GCC has code to correctly determine the correct value for @var{target} |
f9047ed3 | 575 | for nearly all native systems. Therefore, we highly recommend you not |
f42974dc DW |
576 | provide a configure target when configuring a native compiler. |
577 | ||
578 | @item | |
6cfb3f16 | 579 | @var{target} must be specified as @option{--target=@var{target}} |
f9047ed3 | 580 | when configuring a cross compiler; examples of valid targets would be |
a4a4b1d3 | 581 | m68k-coff, sh-elf, etc. |
f42974dc DW |
582 | |
583 | @item | |
6cfb3f16 | 584 | Specifying just @var{target} instead of @option{--target=@var{target}} |
38209993 | 585 | implies that the host defaults to @var{target}. |
f42974dc DW |
586 | @end itemize |
587 | ||
588 | ||
ef88b07d | 589 | @heading Options specification |
f42974dc | 590 | |
ef88b07d | 591 | Use @var{options} to override several configure time options for |
7ba4ca63 | 592 | GCC@. A list of supported @var{options} follows; @samp{configure |
80f9249a JM |
593 | --help} may list other options, but those not listed below may not |
594 | work and should not normally be used. | |
f42974dc | 595 | |
c1c3bb0c ME |
596 | Note that each @option{--enable} option has a corresponding |
597 | @option{--disable} option and that each @option{--with} option has a | |
598 | corresponding @option{--without} option. | |
599 | ||
ef88b07d JM |
600 | @table @code |
601 | @item --prefix=@var{dirname} | |
602 | Specify the toplevel installation | |
f42974dc DW |
603 | directory. This is the recommended way to install the tools into a directory |
604 | other than the default. The toplevel installation directory defaults to | |
6cfb3f16 | 605 | @file{/usr/local}. |
f42974dc | 606 | |
38209993 | 607 | We @strong{highly} recommend against @var{dirname} being the same or a |
a7582c8c BE |
608 | subdirectory of @var{objdir} or vice versa. If specifying a directory |
609 | beneath a user's home directory tree, some shells will not expand | |
610 | @var{dirname} correctly if it contains the @samp{~} metacharacter; use | |
611 | @env{$HOME} instead. | |
f42974dc | 612 | |
8e5f33ff GK |
613 | The following standard @command{autoconf} options are supported. Normally you |
614 | should not need to use these options. | |
ef88b07d | 615 | @table @code |
ab130aa5 JM |
616 | @item --exec-prefix=@var{dirname} |
617 | Specify the toplevel installation directory for architecture-dependent | |
618 | files. The default is @file{@var{prefix}}. | |
619 | ||
620 | @item --bindir=@var{dirname} | |
621 | Specify the installation directory for the executables called by users | |
622 | (such as @command{gcc} and @command{g++}). The default is | |
623 | @file{@var{exec-prefix}/bin}. | |
624 | ||
625 | @item --libdir=@var{dirname} | |
626 | Specify the installation directory for object code libraries and | |
8e5f33ff GK |
627 | internal data files of GCC@. The default is @file{@var{exec-prefix}/lib}. |
628 | ||
629 | @item --libexecdir=@var{dirname} | |
630 | Specify the installation directory for internal executables of GCC@. | |
631 | The default is @file{@var{exec-prefix}/libexec}. | |
ab130aa5 JM |
632 | |
633 | @item --with-slibdir=@var{dirname} | |
634 | Specify the installation directory for the shared libgcc library. The | |
635 | default is @file{@var{libdir}}. | |
636 | ||
637 | @item --infodir=@var{dirname} | |
638 | Specify the installation directory for documentation in info format. | |
639 | The default is @file{@var{prefix}/info}. | |
640 | ||
8567c70f TT |
641 | @item --datadir=@var{dirname} |
642 | Specify the installation directory for some architecture-independent | |
643 | data files referenced by GCC@. The default is @file{@var{prefix}/share}. | |
644 | ||
ab130aa5 JM |
645 | @item --mandir=@var{dirname} |
646 | Specify the installation directory for manual pages. The default is | |
647 | @file{@var{prefix}/man}. (Note that the manual pages are only extracts from | |
8e9a4a45 | 648 | the full GCC manuals, which are provided in Texinfo format. The manpages |
ab130aa5 JM |
649 | are derived by an automatic conversion process from parts of the full |
650 | manual.) | |
651 | ||
ef88b07d JM |
652 | @item --with-gxx-include-dir=@var{dirname} |
653 | Specify | |
eea81d3e | 654 | the installation directory for G++ header files. The default is |
e0b24bce | 655 | @file{@var{prefix}/include/c++/@var{version}}. |
ecb7d6b3 | 656 | |
ef88b07d | 657 | @end table |
f42974dc | 658 | |
b21d216c AF |
659 | @item --program-prefix=@var{prefix} |
660 | GCC supports some transformations of the names of its programs when | |
8a36672b JM |
661 | installing them. This option prepends @var{prefix} to the names of |
662 | programs to install in @var{bindir} (see above). For example, specifying | |
b21d216c AF |
663 | @option{--program-prefix=foo-} would result in @samp{gcc} |
664 | being installed as @file{/usr/local/bin/foo-gcc}. | |
665 | ||
666 | @item --program-suffix=@var{suffix} | |
667 | Appends @var{suffix} to the names of programs to install in @var{bindir} | |
8a36672b | 668 | (see above). For example, specifying @option{--program-suffix=-3.1} |
b21d216c AF |
669 | would result in @samp{gcc} being installed as |
670 | @file{/usr/local/bin/gcc-3.1}. | |
671 | ||
672 | @item --program-transform-name=@var{pattern} | |
673 | Applies the @samp{sed} script @var{pattern} to be applied to the names | |
8a36672b | 674 | of programs to install in @var{bindir} (see above). @var{pattern} has to |
b21d216c | 675 | consist of one or more basic @samp{sed} editing commands, separated by |
8a36672b | 676 | semicolons. For example, if you want the @samp{gcc} program name to be |
b21d216c AF |
677 | transformed to the installed program @file{/usr/local/bin/myowngcc} and |
678 | the @samp{g++} program name to be transformed to | |
679 | @file{/usr/local/bin/gspecial++} without changing other program names, | |
680 | you could use the pattern | |
681 | @option{--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/'} | |
682 | to achieve this effect. | |
683 | ||
684 | All three options can be combined and used together, resulting in more | |
8a36672b | 685 | complex conversion patterns. As a basic rule, @var{prefix} (and |
b21d216c AF |
686 | @var{suffix}) are prepended (appended) before further transformations |
687 | can happen with a special transformation script @var{pattern}. | |
688 | ||
8c085f6f | 689 | As currently implemented, this option only takes effect for native |
b21d216c | 690 | builds; cross compiler binaries' names are not transformed even when a |
8c085f6f | 691 | transformation is explicitly asked for by one of these options. |
b21d216c AF |
692 | |
693 | For native builds, some of the installed programs are also installed | |
694 | with the target alias in front of their name, as in | |
8a36672b | 695 | @samp{i686-pc-linux-gnu-gcc}. All of the above transformations happen |
78466c0e | 696 | before the target alias is prepended to the name---so, specifying |
b21d216c AF |
697 | @option{--program-prefix=foo-} and @option{program-suffix=-3.1}, the |
698 | resulting binary would be installed as | |
699 | @file{/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1}. | |
700 | ||
8ecab453 | 701 | As a last shortcoming, none of the installed Ada programs are |
b21d216c AF |
702 | transformed yet, which will be fixed in some time. |
703 | ||
ef88b07d JM |
704 | @item --with-local-prefix=@var{dirname} |
705 | Specify the | |
6ac48571 JM |
706 | installation directory for local include files. The default is |
707 | @file{/usr/local}. Specify this option if you want the compiler to | |
708 | search directory @file{@var{dirname}/include} for locally installed | |
709 | header files @emph{instead} of @file{/usr/local/include}. | |
710 | ||
711 | You should specify @option{--with-local-prefix} @strong{only} if your | |
712 | site has a different convention (not @file{/usr/local}) for where to put | |
713 | site-specific files. | |
714 | ||
715 | The default value for @option{--with-local-prefix} is @file{/usr/local} | |
716 | regardless of the value of @option{--prefix}. Specifying | |
717 | @option{--prefix} has no effect on which directory GCC searches for | |
718 | local header files. This may seem counterintuitive, but actually it is | |
719 | logical. | |
720 | ||
721 | The purpose of @option{--prefix} is to specify where to @emph{install | |
722 | GCC}. The local header files in @file{/usr/local/include}---if you put | |
161d7b59 | 723 | any in that directory---are not part of GCC@. They are part of other |
6ac48571 JM |
724 | programs---perhaps many others. (GCC installs its own header files in |
725 | another directory which is based on the @option{--prefix} value.) | |
726 | ||
48209ce5 | 727 | Both the local-prefix include directory and the GCC-prefix include |
78466c0e | 728 | directory are part of GCC's ``system include'' directories. Although these |
48209ce5 JDA |
729 | two directories are not fixed, they need to be searched in the proper |
730 | order for the correct processing of the include_next directive. The | |
731 | local-prefix include directory is searched before the GCC-prefix | |
732 | include directory. Another characteristic of system include directories | |
733 | is that pedantic warnings are turned off for headers in these directories. | |
734 | ||
735 | Some autoconf macros add @option{-I @var{directory}} options to the | |
736 | compiler command line, to ensure that directories containing installed | |
737 | packages' headers are searched. When @var{directory} is one of GCC's | |
738 | system include directories, GCC will ignore the option so that system | |
739 | directories continue to be processed in the correct order. This | |
740 | may result in a search order different from what was specified but the | |
741 | directory will still be searched. | |
742 | ||
743 | GCC automatically searches for ordinary libraries using | |
744 | @env{GCC_EXEC_PREFIX}. Thus, when the same installation prefix is | |
745 | used for both GCC and packages, GCC will automatically search for | |
746 | both headers and libraries. This provides a configuration that is | |
747 | easy to use. GCC behaves in a manner similar to that when it is | |
748 | installed as a system compiler in @file{/usr}. | |
749 | ||
750 | Sites that need to install multiple versions of GCC may not want to | |
751 | use the above simple configuration. It is possible to use the | |
752 | @option{--program-prefix}, @option{--program-suffix} and | |
753 | @option{--program-transform-name} options to install multiple versions | |
754 | into a single directory, but it may be simpler to use different prefixes | |
755 | and the @option{--with-local-prefix} option to specify the location of the | |
756 | site-specific files for each version. It will then be necessary for | |
757 | users to specify explicitly the location of local site libraries | |
758 | (e.g., with @env{LIBRARY_PATH}). | |
759 | ||
760 | The same value can be used for both @option{--with-local-prefix} and | |
761 | @option{--prefix} provided it is not @file{/usr}. This can be used | |
762 | to avoid the default search of @file{/usr/local/include}. | |
763 | ||
6ac48571 JM |
764 | @strong{Do not} specify @file{/usr} as the @option{--with-local-prefix}! |
765 | The directory you use for @option{--with-local-prefix} @strong{must not} | |
766 | contain any of the system's standard header files. If it did contain | |
767 | them, certain programs would be miscompiled (including GNU Emacs, on | |
768 | certain targets), because this would override and nullify the header | |
4c64396e | 769 | file corrections made by the @command{fixincludes} script. |
6ac48571 JM |
770 | |
771 | Indications are that people who use this option use it based on mistaken | |
772 | ideas of what it is for. People use it as if it specified where to | |
161d7b59 | 773 | install part of GCC@. Perhaps they make this assumption because |
6ac48571 JM |
774 | installing GCC creates the directory. |
775 | ||
6cfb3f16 | 776 | @item --enable-shared[=@var{package}[,@dots{}]] |
0cb98517 AO |
777 | Build shared versions of libraries, if shared libraries are supported on |
778 | the target platform. Unlike GCC 2.95.x and earlier, shared libraries | |
07659e97 | 779 | are enabled by default on all platforms that support shared libraries. |
0cb98517 AO |
780 | |
781 | If a list of packages is given as an argument, build shared libraries | |
782 | only for the listed packages. For other packages, only static libraries | |
783 | will be built. Package names currently recognized in the GCC tree are | |
784 | @samp{libgcc} (also known as @samp{gcc}), @samp{libstdc++} (not | |
e22df315 | 785 | @samp{libstdc++-v3}), @samp{libffi}, @samp{zlib}, @samp{boehm-gc}, |
07659e97 | 786 | @samp{ada}, @samp{libada}, @samp{libjava} and @samp{libobjc}. |
55c45226 | 787 | Note @samp{libiberty} does not support shared libraries at all. |
0cb98517 AO |
788 | |
789 | Use @option{--disable-shared} to build only static libraries. Note that | |
790 | @option{--disable-shared} does not accept a list of package names as | |
791 | argument, only @option{--enable-shared} does. | |
f42974dc | 792 | |
ef88b07d JM |
793 | @item @anchor{with-gnu-as}--with-gnu-as |
794 | Specify that the compiler should assume that the | |
767094dd | 795 | assembler it finds is the GNU assembler. However, this does not modify |
377dfc82 GP |
796 | the rules to find an assembler and will result in confusion if the |
797 | assembler found is not actually the GNU assembler. (Confusion may also | |
8c26c999 JM |
798 | result if the compiler finds the GNU assembler but has not been |
799 | configured with @option{--with-gnu-as}.) If you have more than one | |
38209993 | 800 | assembler installed on your system, you may want to use this option in |
cc11cc9b PB |
801 | connection with @option{--with-as=@var{pathname}} or |
802 | @option{--with-build-time-tools=@var{pathname}}. | |
38209993 | 803 | |
8c085f6f JJ |
804 | The following systems are the only ones where it makes a difference |
805 | whether you use the GNU assembler. On any other system, | |
806 | @option{--with-gnu-as} has no effect. | |
807 | ||
2ff16718 | 808 | @itemize @bullet |
8c085f6f JJ |
809 | @item @samp{hppa1.0-@var{any}-@var{any}} |
810 | @item @samp{hppa1.1-@var{any}-@var{any}} | |
811 | @item @samp{i386-@var{any}-sysv} | |
8c085f6f JJ |
812 | @item @samp{m68k-bull-sysv} |
813 | @item @samp{m68k-hp-hpux} | |
8c085f6f JJ |
814 | @item @samp{m68000-hp-hpux} |
815 | @item @samp{m68000-att-sysv} | |
8f2afc21 EB |
816 | @item @samp{sparc-sun-solaris2.@var{any}} |
817 | @item @samp{sparc64-@var{any}-solaris2.@var{any}} | |
8c085f6f | 818 | @end itemize |
8c26c999 | 819 | |
8f2afc21 | 820 | On the systems listed above (except for the HP-PA, the SPARC, for ISC on |
82563d35 RS |
821 | the 386, if you use the GNU assembler, you should also use the GNU linker |
822 | (and specify @option{--with-gnu-ld}). | |
8c26c999 | 823 | |
8f2afc21 | 824 | @item @anchor{with-as}--with-as=@var{pathname} |
cc11cc9b PB |
825 | Specify that the compiler should use the assembler pointed to by |
826 | @var{pathname}, rather than the one found by the standard rules to find | |
827 | an assembler, which are: | |
f42974dc DW |
828 | @itemize @bullet |
829 | @item | |
cc11cc9b PB |
830 | Unless GCC is being built with a cross compiler, check the |
831 | @file{@var{libexec}/gcc/@var{target}/@var{version}} directory. | |
832 | @var{libexec} defaults to @file{@var{exec-prefix}/libexec}; | |
833 | @var{exec-prefix} defaults to @var{prefix}, which | |
834 | defaults to @file{/usr/local} unless overridden by the | |
835 | @option{--prefix=@var{pathname}} switch described above. @var{target} | |
836 | is the target system triple, such as @samp{sparc-sun-solaris2.7}, and | |
837 | @var{version} denotes the GCC version, such as 3.0. | |
838 | ||
f42974dc | 839 | @item |
cc11cc9b PB |
840 | If the target system is the same that you are building on, check |
841 | operating system specific directories (e.g.@: @file{/usr/ccs/bin} on | |
250d5688 | 842 | Sun Solaris 2). |
cc11cc9b PB |
843 | |
844 | @item | |
845 | Check in the @env{PATH} for a tool whose name is prefixed by the | |
846 | target system triple. | |
847 | ||
848 | @item | |
849 | Check in the @env{PATH} for a tool whose name is not prefixed by the | |
850 | target system triple, if the host and target system triple are | |
851 | the same (in other words, we use a host tool if it can be used for | |
852 | the target as well). | |
f42974dc | 853 | @end itemize |
cc11cc9b PB |
854 | |
855 | You may want to use @option{--with-as} if no assembler | |
856 | is installed in the directories listed above, or if you have multiple | |
857 | assemblers installed and want to choose one that is not found by the | |
858 | above rules. | |
f42974dc | 859 | |
ef88b07d JM |
860 | @item @anchor{with-gnu-ld}--with-gnu-ld |
861 | Same as @uref{#with-gnu-as,,@option{--with-gnu-as}} | |
8f2afc21 | 862 | but for the linker. |
f42974dc | 863 | |
eea81d3e | 864 | @item --with-ld=@var{pathname} |
8f2afc21 EB |
865 | Same as @uref{#with-as,,@option{--with-as}} |
866 | but for the linker. | |
f42974dc | 867 | |
ef88b07d JM |
868 | @item --with-stabs |
869 | Specify that stabs debugging | |
38209993 LG |
870 | information should be used instead of whatever format the host normally |
871 | uses. Normally GCC uses the same debug format as the host system. | |
f42974dc | 872 | |
8c26c999 JM |
873 | On MIPS based systems and on Alphas, you must specify whether you want |
874 | GCC to create the normal ECOFF debugging format, or to use BSD-style | |
875 | stabs passed through the ECOFF symbol table. The normal ECOFF debug | |
161d7b59 JM |
876 | format cannot fully handle languages other than C@. BSD stabs format can |
877 | handle other languages, but it only works with the GNU debugger GDB@. | |
8c26c999 JM |
878 | |
879 | Normally, GCC uses the ECOFF debugging format by default; if you | |
161d7b59 | 880 | prefer BSD stabs, specify @option{--with-stabs} when you configure GCC@. |
8c26c999 JM |
881 | |
882 | No matter which default you choose when you configure GCC, the user | |
883 | can use the @option{-gcoff} and @option{-gstabs+} options to specify explicitly | |
884 | the debug format for a particular compilation. | |
885 | ||
886 | @option{--with-stabs} is meaningful on the ISC system on the 386, also, if | |
887 | @option{--with-gas} is used. It selects use of stabs debugging | |
888 | information embedded in COFF output. This kind of debugging information | |
889 | supports C++ well; ordinary COFF debugging information does not. | |
890 | ||
891 | @option{--with-stabs} is also meaningful on 386 systems running SVR4. It | |
892 | selects use of stabs debugging information embedded in ELF output. The | |
893 | C++ compiler currently (2.6.0) does not support the DWARF debugging | |
894 | information normally used on 386 SVR4 platforms; stabs provide a | |
895 | workable alternative. This requires gas and gdb, as the normal SVR4 | |
896 | tools can not generate or interpret stabs. | |
897 | ||
eea81d3e | 898 | @item --disable-multilib |
ef88b07d | 899 | Specify that multiple target |
eea81d3e RO |
900 | libraries to support different target variants, calling |
901 | conventions, etc should not be built. The default is to build a | |
902 | predefined set of them. | |
f42974dc | 903 | |
e8515283 DE |
904 | Some targets provide finer-grained control over which multilibs are built |
905 | (e.g., @option{--disable-softfloat}): | |
906 | @table @code | |
e8515283 DE |
907 | @item arc-*-elf* |
908 | biendian. | |
909 | ||
910 | @item arm-*-* | |
911 | fpu, 26bit, underscore, interwork, biendian, nofmult. | |
912 | ||
913 | @item m68*-*-* | |
914 | softfloat, m68881, m68000, m68020. | |
915 | ||
916 | @item mips*-*-* | |
917 | single-float, biendian, softfloat. | |
918 | ||
919 | @item powerpc*-*-*, rs6000*-*-* | |
920 | aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian, | |
f282ffb3 | 921 | sysv, aix. |
e8515283 DE |
922 | |
923 | @end table | |
924 | ||
ef88b07d JM |
925 | @item --enable-threads |
926 | Specify that the target | |
38209993 LG |
927 | supports threads. This affects the Objective-C compiler and runtime |
928 | library, and exception handling for other languages like C++ and Java. | |
6ac48571 | 929 | On some systems, this is the default. |
f42974dc | 930 | |
f6160ed5 LR |
931 | In general, the best (and, in many cases, the only known) threading |
932 | model available will be configured for use. Beware that on some | |
2dd76960 | 933 | systems, GCC has not been taught what threading models are generally |
3c6bb1db LR |
934 | available for the system. In this case, @option{--enable-threads} is an |
935 | alias for @option{--enable-threads=single}. | |
f6160ed5 LR |
936 | |
937 | @item --disable-threads | |
938 | Specify that threading support should be disabled for the system. | |
3c6bb1db | 939 | This is an alias for @option{--enable-threads=single}. |
f6160ed5 | 940 | |
ef88b07d JM |
941 | @item --enable-threads=@var{lib} |
942 | Specify that | |
38209993 LG |
943 | @var{lib} is the thread support library. This affects the Objective-C |
944 | compiler and runtime library, and exception handling for other languages | |
f85b8d1a JM |
945 | like C++ and Java. The possibilities for @var{lib} are: |
946 | ||
947 | @table @code | |
948 | @item aix | |
949 | AIX thread support. | |
950 | @item dce | |
951 | DCE thread support. | |
4c80872c RK |
952 | @item gnat |
953 | Ada tasking support. For non-Ada programs, this setting is equivalent | |
8a36672b | 954 | to @samp{single}. When used in conjunction with the Ada run time, it |
4c80872c RK |
955 | causes GCC to use the same thread primitives as Ada uses. This option |
956 | is necessary when using both Ada and the back end exception handling, | |
957 | which is the default for most Ada targets. | |
f85b8d1a | 958 | @item mach |
eea81d3e | 959 | Generic MACH thread support, known to work on NeXTSTEP@. (Please note |
3c6bb1db | 960 | that the file needed to support this configuration, @file{gthr-mach.h}, is |
f6160ed5 LR |
961 | missing and thus this setting will cause a known bootstrap failure.) |
962 | @item no | |
963 | This is an alias for @samp{single}. | |
f85b8d1a | 964 | @item posix |
18167442 EB |
965 | Generic POSIX/Unix98 thread support. |
966 | @item posix95 | |
967 | Generic POSIX/Unix95 thread support. | |
f6160ed5 LR |
968 | @item rtems |
969 | RTEMS thread support. | |
f85b8d1a JM |
970 | @item single |
971 | Disable thread support, should work for all platforms. | |
972 | @item solaris | |
eea81d3e | 973 | Sun Solaris 2 thread support. |
f85b8d1a JM |
974 | @item vxworks |
975 | VxWorks thread support. | |
976 | @item win32 | |
977 | Microsoft Win32 API thread support. | |
61fec9ff JB |
978 | @item nks |
979 | Novell Kernel Services thread support. | |
f85b8d1a | 980 | @end table |
f42974dc | 981 | |
8dea1cca DD |
982 | @item --enable-tls |
983 | Specify that the target supports TLS (Thread Local Storage). Usually | |
984 | configure can correctly determine if TLS is supported. In cases where | |
985 | it guesses incorrectly, TLS can be explicitly enabled or disabled with | |
986 | @option{--enable-tls} or @option{--disable-tls}. This can happen if | |
987 | the assembler supports TLS but the C library does not, or if the | |
988 | assumptions made by the configure test are incorrect. | |
989 | ||
990 | @item --disable-tls | |
991 | Specify that the target does not support TLS. | |
992 | This is an alias for @option{--enable-tls=no}. | |
993 | ||
ef88b07d | 994 | @item --with-cpu=@var{cpu} |
7816bea0 DJ |
995 | Specify which cpu variant the compiler should generate code for by default. |
996 | @var{cpu} will be used as the default value of the @option{-mcpu=} switch. | |
59fbf3cb NS |
997 | This option is only supported on some targets, including ARM, i386, M68k, |
998 | PowerPC, and SPARC@. | |
7816bea0 DJ |
999 | |
1000 | @item --with-schedule=@var{cpu} | |
1001 | @itemx --with-arch=@var{cpu} | |
1002 | @itemx --with-tune=@var{cpu} | |
1003 | @itemx --with-abi=@var{abi} | |
9b66ebb1 | 1004 | @itemx --with-fpu=@var{type} |
7816bea0 DJ |
1005 | @itemx --with-float=@var{type} |
1006 | These configure options provide default values for the @option{-mschedule=}, | |
9b66ebb1 PB |
1007 | @option{-march=}, @option{-mtune=}, @option{-mabi=}, and @option{-mfpu=} |
1008 | options and for @option{-mhard-float} or @option{-msoft-float}. As with | |
1009 | @option{--with-cpu}, which switches will be accepted and acceptable values | |
1010 | of the arguments depend on the target. | |
f42974dc | 1011 | |
3cf94279 PB |
1012 | @item --with-mode=@var{mode} |
1013 | Specify if the compiler should default to @option{-marm} or @option{-mthumb}. | |
1014 | This option is only supported on ARM targets. | |
1015 | ||
9f0df97a DD |
1016 | @item --with-divide=@var{type} |
1017 | Specify how the compiler should generate code for checking for | |
1018 | division by zero. This option is only supported on the MIPS target. | |
1019 | The possibilities for @var{type} are: | |
1020 | @table @code | |
1021 | @item traps | |
1022 | Division by zero checks use conditional traps (this is the default on | |
1023 | systems that support conditional traps). | |
1024 | @item breaks | |
1025 | Division by zero checks use the break instruction. | |
1026 | @end table | |
1027 | ||
354b7da5 DH |
1028 | @item --enable-__cxa_atexit |
1029 | Define if you want to use __cxa_atexit, rather than atexit, to | |
1030 | register C++ destructors for local statics and global objects. | |
1031 | This is essential for fully standards-compliant handling of | |
8a36672b JM |
1032 | destructors, but requires __cxa_atexit in libc. This option is currently |
1033 | only available on systems with GNU libc. When enabled, this will cause | |
354b7da5 DH |
1034 | @option{-fuse-cxa-exit} to be passed by default. |
1035 | ||
ef88b07d JM |
1036 | @item --enable-target-optspace |
1037 | Specify that target | |
38209993 LG |
1038 | libraries should be optimized for code space instead of code speed. |
1039 | This is the default for the m32r platform. | |
f42974dc | 1040 | |
ab130aa5 JM |
1041 | @item --disable-cpp |
1042 | Specify that a user visible @command{cpp} program should not be installed. | |
1043 | ||
1044 | @item --with-cpp-install-dir=@var{dirname} | |
1045 | Specify that the user visible @command{cpp} program should be installed | |
1046 | in @file{@var{prefix}/@var{dirname}/cpp}, in addition to @var{bindir}. | |
f42974dc | 1047 | |
07cf4226 DM |
1048 | @item --enable-initfini-array |
1049 | Force the use of sections @code{.init_array} and @code{.fini_array} | |
1050 | (instead of @code{.init} and @code{.fini}) for constructors and | |
1051 | destructors. Option @option{--disable-initfini-array} has the | |
1052 | opposite effect. If neither option is specified, the configure script | |
1053 | will try to guess whether the @code{.init_array} and | |
1054 | @code{.fini_array} sections are supported and, if they are, use them. | |
1055 | ||
ef88b07d JM |
1056 | @item --enable-maintainer-mode |
1057 | The build rules that | |
6cfb3f16 | 1058 | regenerate the GCC master message catalog @file{gcc.pot} are normally |
767094dd JM |
1059 | disabled. This is because it can only be rebuilt if the complete source |
1060 | tree is present. If you have changed the sources and want to rebuild the | |
6ac48571 | 1061 | catalog, configuring with @option{--enable-maintainer-mode} will enable |
767094dd | 1062 | this. Note that you need a recent version of the @code{gettext} tools |
6ac48571 JM |
1063 | to do so. |
1064 | ||
f5c3bb4b PB |
1065 | @item --disable-bootstrap |
1066 | For a native build, the default configuration is to perform | |
1067 | a 3-stage bootstrap of the compiler when @samp{make} is invoked, | |
1068 | testing that GCC can compile itself correctly. If you want to disable | |
1069 | this process, you can configure with @option{--disable-bootstrap}. | |
1070 | ||
1071 | @item --enable-bootstrap | |
1072 | In special cases, you may want to perform a 3-stage build | |
1073 | even if the target and host triplets are different. | |
1074 | This could happen when the host can run code compiled for | |
1075 | the target (e.g.@: host is i686-linux, target is i486-linux). | |
1076 | Starting from GCC 4.2, to do this you have to configure explicitly | |
1077 | with @option{--enable-bootstrap}. | |
1078 | ||
51b9ff45 | 1079 | @item --enable-generated-files-in-srcdir |
80521187 | 1080 | Neither the .c and .h files that are generated from Bison and flex nor the |
51b9ff45 | 1081 | info manuals and man pages that are built from the .texi files are present |
80521187 GP |
1082 | in the SVN development tree. When building GCC from that development tree, |
1083 | or from one of our snapshots, those generated files are placed in your | |
1084 | build directory, which allows for the source to be in a readonly | |
1085 | directory. | |
51b9ff45 KC |
1086 | |
1087 | If you configure with @option{--enable-generated-files-in-srcdir} then those | |
1088 | generated files will go into the source directory. This is mainly intended | |
1089 | for generating release or prerelease tarballs of the GCC sources, since it | |
80521187 GP |
1090 | is not a requirement that the users of source releases to have flex, Bison, |
1091 | or makeinfo. | |
51b9ff45 | 1092 | |
ef88b07d JM |
1093 | @item --enable-version-specific-runtime-libs |
1094 | Specify | |
38209993 | 1095 | that runtime libraries should be installed in the compiler specific |
8e5f33ff GK |
1096 | subdirectory (@file{@var{libdir}/gcc}) rather than the usual places. In |
1097 | addition, @samp{libstdc++}'s include files will be installed into | |
1098 | @file{@var{libdir}} unless you overruled it by using | |
6cfb3f16 | 1099 | @option{--with-gxx-include-dir=@var{dirname}}. Using this option is |
38209993 | 1100 | particularly useful if you intend to use several versions of GCC in |
8a36672b | 1101 | parallel. This is currently supported by @samp{libgfortran}, |
b9034bbd AJ |
1102 | @samp{libjava}, @samp{libmudflap}, @samp{libstdc++}, and @samp{libobjc}. |
1103 | ||
c33b7bf0 TF |
1104 | @item --with-java-home=@var{dirname} |
1105 | This @samp{libjava} option overrides the default value of the | |
1106 | @samp{java.home} system property. It is also used to set | |
1107 | @samp{sun.boot.class.path} to @file{@var{dirname}/lib/rt.jar}. By | |
1108 | default @samp{java.home} is set to @file{@var{prefix}} and | |
1109 | @samp{sun.boot.class.path} to | |
1110 | @file{@var{datadir}/java/libgcj-@var{version}.jar}. | |
38209993 | 1111 | |
ef88b07d JM |
1112 | @item --enable-languages=@var{lang1},@var{lang2},@dots{} |
1113 | Specify that only a particular subset of compilers and | |
767094dd | 1114 | their runtime libraries should be built. For a list of valid values for |
6cfb3f16 | 1115 | @var{langN} you can issue the following command in the |
eea81d3e | 1116 | @file{gcc} directory of your GCC source tree:@* |
3ab51846 | 1117 | @smallexample |
eea81d3e | 1118 | grep language= */config-lang.in |
3ab51846 | 1119 | @end smallexample |
eea81d3e | 1120 | Currently, you can use any of the following: |
47530dd9 | 1121 | @code{all}, @code{ada}, @code{c}, @code{c++}, @code{fortran}, @code{java}, |
f995c51f JW |
1122 | @code{objc}, @code{obj-c++}, @code{treelang}. |
1123 | Building the Ada compiler has special requirements, see below. | |
1124 | If you do not pass this flag, or specify the option @code{all}, then all | |
1125 | default languages available in the @file{gcc} sub-tree will be configured. | |
1126 | Ada, Objective-C++, and treelang are not default languages; the rest are. | |
cc11cc9b PB |
1127 | Re-defining @code{LANGUAGES} when calling @samp{make} @strong{does not} |
1128 | work anymore, as those language sub-directories might not have been | |
1129 | configured! | |
f42974dc | 1130 | |
cd271054 AC |
1131 | @item --disable-libada |
1132 | Specify that the run-time libraries and tools used by GNAT should not | |
1133 | be built. This can be useful for debugging, or for compatibility with | |
c2910edf | 1134 | previous Ada build procedures, when it was required to explicitly |
cd271054 AC |
1135 | do a @samp{make -C gcc gnatlib_and_tools}. |
1136 | ||
ef0087a7 KH |
1137 | @item --disable-libssp |
1138 | Specify that the run-time libraries for stack smashing protection | |
1139 | should not be built. | |
1140 | ||
4fe7a8bc AH |
1141 | @item --disable-libgomp |
1142 | Specify that the run-time libraries used by GOMP should not be built. | |
1143 | ||
ef88b07d JM |
1144 | @item --with-dwarf2 |
1145 | Specify that the compiler should | |
eea81d3e | 1146 | use DWARF 2 debugging information as the default. |
f85b8d1a | 1147 | |
7f970b70 AM |
1148 | @item --enable-targets=all |
1149 | @itemx --enable-targets=@var{target_list} | |
1150 | Some GCC targets, e.g.@: powerpc64-linux, build bi-arch compilers. | |
1151 | These are compilers that are able to generate either 64-bit or 32-bit | |
8ab5f5c9 | 1152 | code. Typically, the corresponding 32-bit target, e.g.@: |
7f970b70 AM |
1153 | powerpc-linux for powerpc64-linux, only generates 32-bit code. This |
1154 | option enables the 32-bit target to be a bi-arch compiler, which is | |
1155 | useful when you want a bi-arch compiler that defaults to 32-bit, and | |
1156 | you are building a bi-arch or multi-arch binutils in a combined tree. | |
0f45f0f5 | 1157 | Currently, this option only affects powerpc-linux and x86-linux. |
7f970b70 AM |
1158 | |
1159 | @item --enable-secureplt | |
1160 | This option enables @option{-msecure-plt} by default for powerpc-linux. | |
1161 | @ifnothtml | |
1162 | @xref{RS/6000 and PowerPC Options,, RS/6000 and PowerPC Options, gcc, | |
1163 | Using the GNU Compiler Collection (GCC)}, | |
1164 | @end ifnothtml | |
1165 | @ifhtml | |
1166 | See ``RS/6000 and PowerPC Options'' in the main manual | |
1167 | @end ifhtml | |
1168 | ||
f85b8d1a | 1169 | @item --enable-win32-registry |
eea81d3e | 1170 | @itemx --enable-win32-registry=@var{key} |
f85b8d1a | 1171 | @itemx --disable-win32-registry |
95fef11f | 1172 | The @option{--enable-win32-registry} option enables Microsoft Windows-hosted GCC |
f85b8d1a JM |
1173 | to look up installations paths in the registry using the following key: |
1174 | ||
1175 | @smallexample | |
eea81d3e | 1176 | @code{HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\@var{key}} |
f85b8d1a JM |
1177 | @end smallexample |
1178 | ||
eea81d3e | 1179 | @var{key} defaults to GCC version number, and can be overridden by the |
8a36672b | 1180 | @option{--enable-win32-registry=@var{key}} option. Vendors and distributors |
f85b8d1a JM |
1181 | who use custom installers are encouraged to provide a different key, |
1182 | perhaps one comprised of vendor name and GCC version number, to | |
767094dd | 1183 | avoid conflict with existing installations. This feature is enabled |
6cfb3f16 | 1184 | by default, and can be disabled by @option{--disable-win32-registry} |
f85b8d1a JM |
1185 | option. This option has no effect on the other hosts. |
1186 | ||
1187 | @item --nfp | |
1188 | Specify that the machine does not have a floating point unit. This | |
c9693e96 LH |
1189 | option only applies to @samp{m68k-sun-sunos@var{n}}. On any other |
1190 | system, @option{--nfp} has no effect. | |
f85b8d1a | 1191 | |
dd859b8a KG |
1192 | @item --enable-werror |
1193 | @itemx --disable-werror | |
1194 | @itemx --enable-werror=yes | |
1195 | @itemx --enable-werror=no | |
1196 | When you specify this option, it controls whether certain files in the | |
1197 | compiler are built with @option{-Werror} in bootstrap stage2 and later. | |
1198 | If you don't specify it, @option{-Werror} is turned on for the main | |
1199 | development trunk. However it defaults to off for release branches and | |
1200 | final releases. The specific files which get @option{-Werror} are | |
1201 | controlled by the Makefiles. | |
1202 | ||
f85b8d1a JM |
1203 | @item --enable-checking |
1204 | @itemx --enable-checking=@var{list} | |
cdce5c16 | 1205 | When you specify this option, the compiler is built to perform internal |
e5080aa6 | 1206 | consistency checks of the requested complexity. This does not change the |
cdce5c16 NS |
1207 | generated code, but adds error checking within the compiler. This will |
1208 | slow down the compiler and may only work properly if you are building | |
1209 | the compiler with GCC@. This is @samp{yes} by default when building | |
80521187 | 1210 | from SVN or snapshots, but @samp{release} for releases. More control |
cdce5c16 NS |
1211 | over the checks may be had by specifying @var{list}. The categories of |
1212 | checks available are @samp{yes} (most common checks | |
1213 | @samp{assert,misc,tree,gc,rtlflag,runtime}), @samp{no} (no checks at | |
1214 | all), @samp{all} (all but @samp{valgrind}), @samp{release} (cheapest | |
1215 | checks @samp{assert,runtime}) or @samp{none} (same as @samp{no}). | |
1216 | Individual checks can be enabled with these flags @samp{assert}, | |
1217 | @samp{fold}, @samp{gc}, @samp{gcac} @samp{misc}, @samp{rtl}, | |
1218 | @samp{rtlflag}, @samp{runtime}, @samp{tree}, and @samp{valgrind}. | |
1219 | ||
1220 | The @samp{valgrind} check requires the external @command{valgrind} | |
ccf548a7 | 1221 | simulator, available from @uref{http://valgrind.org/}. The |
cdce5c16 NS |
1222 | @samp{rtl}, @samp{gcac} and @samp{valgrind} checks are very expensive. |
1223 | To disable all checking, @samp{--disable-checking} or | |
1224 | @samp{--enable-checking=none} must be explicitly requested. Disabling | |
1225 | assertions will make the compiler and runtime slightly faster but | |
1226 | increase the risk of undetected internal errors causing wrong code to be | |
1227 | generated. | |
f85b8d1a | 1228 | |
22aa533e | 1229 | @item --enable-coverage |
31775d31 | 1230 | @itemx --enable-coverage=@var{level} |
22aa533e | 1231 | With this option, the compiler is built to collect self coverage |
8a36672b JM |
1232 | information, every time it is run. This is for internal development |
1233 | purposes, and only works when the compiler is being built with gcc. The | |
22aa533e | 1234 | @var{level} argument controls whether the compiler is built optimized or |
8a36672b | 1235 | not, values are @samp{opt} and @samp{noopt}. For coverage analysis you |
22aa533e | 1236 | want to disable optimization, for performance analysis you want to |
8a36672b | 1237 | enable optimization. When coverage is enabled, the default level is |
22aa533e NS |
1238 | without optimization. |
1239 | ||
439a7e54 | 1240 | @item --enable-gather-detailed-mem-stats |
95ea367d | 1241 | When this option is specified more detailed information on memory |
439a7e54 | 1242 | allocation is gathered. This information is printed when using |
daf2f129 | 1243 | @option{-fmem-report}. |
439a7e54 | 1244 | |
5dd90688 RG |
1245 | @item --with-gc |
1246 | @itemx --with-gc=@var{choice} | |
1247 | With this option you can specify the garbage collector implementation | |
1248 | used during the compilation process. @var{choice} can be one of | |
1249 | @samp{page} and @samp{zone}, where @samp{page} is the default. | |
1250 | ||
f85b8d1a JM |
1251 | @item --enable-nls |
1252 | @itemx --disable-nls | |
6cfb3f16 | 1253 | The @option{--enable-nls} option enables Native Language Support (NLS), |
f85b8d1a | 1254 | which lets GCC output diagnostics in languages other than American |
767094dd | 1255 | English. Native Language Support is enabled by default if not doing a |
161d7b59 | 1256 | canadian cross build. The @option{--disable-nls} option disables NLS@. |
f85b8d1a JM |
1257 | |
1258 | @item --with-included-gettext | |
c771326b | 1259 | If NLS is enabled, the @option{--with-included-gettext} option causes the build |
021c4bfd | 1260 | procedure to prefer its copy of GNU @command{gettext}. |
f85b8d1a JM |
1261 | |
1262 | @item --with-catgets | |
1263 | If NLS is enabled, and if the host lacks @code{gettext} but has the | |
1264 | inferior @code{catgets} interface, the GCC build procedure normally | |
1265 | ignores @code{catgets} and instead uses GCC's copy of the GNU | |
6cfb3f16 | 1266 | @code{gettext} library. The @option{--with-catgets} option causes the |
f85b8d1a | 1267 | build procedure to use the host's @code{catgets} in this situation. |
80f9249a | 1268 | |
5304400d CR |
1269 | @item --with-libiconv-prefix=@var{dir} |
1270 | Search for libiconv header files in @file{@var{dir}/include} and | |
1271 | libiconv library files in @file{@var{dir}/lib}. | |
1272 | ||
9340544b ZW |
1273 | @item --enable-obsolete |
1274 | Enable configuration for an obsoleted system. If you attempt to | |
1275 | configure GCC for a system (build, host, or target) which has been | |
1276 | obsoleted, and you do not specify this flag, configure will halt with an | |
1277 | error message. | |
1278 | ||
1279 | All support for systems which have been obsoleted in one release of GCC | |
1280 | is removed entirely in the next major release, unless someone steps | |
1281 | forward to maintain the port. | |
486aa804 BE |
1282 | |
1283 | @item --enable-decimal-float | |
1284 | @itemx --disable-decimal-float | |
1285 | Enable (or disable) support for the C decimal floating point | |
1286 | extension. This is enabled by default only on PowerPC GNU/Linux | |
1287 | systems. Other systems may also support it, but require the user to | |
1288 | specifically enable it. | |
1289 | ||
ed965309 JJ |
1290 | @item --with-long-double-128 |
1291 | Specify if @code{long double} type should be 128-bit by default on selected | |
1292 | GNU/Linux architectures. If using @code{--without-long-double-128}, | |
1293 | @code{long double} will be by default 64-bit, the same as @code{double} type. | |
1294 | When neither of these configure options are used, the default will be | |
1295 | 128-bit @code{long double} when built against GNU C Library 2.4 and later, | |
1296 | 64-bit @code{long double} otherwise. | |
1297 | ||
8a877c9c KG |
1298 | @item --with-gmp=@var{pathname} |
1299 | @itemx --with-gmp-include=@var{pathname} | |
1300 | @itemx --with-gmp-lib=@var{pathname} | |
1301 | @itemx --with-mpfr=@var{pathname} | |
1302 | @itemx --with-mpfr-include=@var{pathname} | |
1303 | @itemx --with-mpfr-lib=@var{pathname} | |
1304 | If you do not have GMP (the GNU Multiple Precision library) and the | |
1305 | MPFR Libraries installed in a standard location and you want to build | |
1306 | GCC, you can explicitly specify the directory where they are installed | |
1307 | (@samp{--with-gmp=@var{gmpinstalldir}}, | |
1308 | @samp{--with-mpfr=@var{mpfrinstalldir}}). The | |
1309 | @option{--with-gmp=@var{gmpinstalldir}} option is shorthand for | |
1310 | @option{--with-gmp-lib=@var{gmpinstalldir}/lib} and | |
1311 | @option{--with-gmp-include=@var{gmpinstalldir}/include}. Likewise the | |
1312 | @option{--with-mpfr=@var{mpfrinstalldir}} option is shorthand for | |
1313 | @option{--with-mpfr-lib=@var{mpfrinstalldir}/lib} and | |
1314 | @option{--with-mpfr-include=@var{mpfrinstalldir}/include}. If these | |
1315 | shorthand assumptions are not correct, you can use the explicit | |
1316 | include and lib options directly. | |
1317 | ||
ef88b07d | 1318 | @end table |
f42974dc | 1319 | |
c1c3bb0c ME |
1320 | @subheading Cross-Compiler-Specific Options |
1321 | The following options only apply to building cross compilers. | |
ef88b07d | 1322 | @table @code |
4977bab6 ZW |
1323 | @item --with-sysroot |
1324 | @itemx --with-sysroot=@var{dir} | |
1325 | Tells GCC to consider @var{dir} as the root of a tree that contains a | |
1326 | (subset of) the root filesystem of the target operating system. | |
1327 | Target system headers, libraries and run-time object files will be | |
1328 | searched in there. The specified directory is not copied into the | |
1329 | install tree, unlike the options @option{--with-headers} and | |
1330 | @option{--with-libs} that this option obsoletes. The default value, | |
1331 | in case @option{--with-sysroot} is not given an argument, is | |
047d636f DJ |
1332 | @option{$@{gcc_tooldir@}/sys-root}. If the specified directory is a |
1333 | subdirectory of @option{$@{exec_prefix@}}, then it will be found relative to | |
1334 | the GCC binaries if the installation tree is moved. | |
4977bab6 | 1335 | |
160633c6 MM |
1336 | @item --with-build-sysroot |
1337 | @itemx --with-build-sysroot=@var{dir} | |
1338 | Tells GCC to consider @var{dir} as the system root (see | |
526635cb | 1339 | @option{--with-sysroot}) while building target libraries, instead of |
160633c6 MM |
1340 | the directory specified with @option{--with-sysroot}. This option is |
1341 | only useful when you are already using @option{--with-sysroot}. You | |
526635cb | 1342 | can use @option{--with-build-sysroot} when you are configuring with |
160633c6 | 1343 | @option{--prefix} set to a directory that is different from the one in |
526635cb MM |
1344 | which you are installing GCC and your target libraries. |
1345 | ||
1346 | This option affects the system root for the compiler used to build | |
1347 | target libraries (which runs on the build system); it does not affect | |
1348 | the compiler which is used to build GCC itself. | |
160633c6 | 1349 | |
65a824f6 JT |
1350 | @item --with-headers |
1351 | @itemx --with-headers=@var{dir} | |
4977bab6 | 1352 | Deprecated in favor of @option{--with-sysroot}. |
65a824f6 JT |
1353 | Specifies that target headers are available when building a cross compiler. |
1354 | The @var{dir} argument specifies a directory which has the target include | |
1355 | files. These include files will be copied into the @file{gcc} install | |
1356 | directory. @emph{This option with the @var{dir} argument is required} when | |
1357 | building a cross compiler, if @file{@var{prefix}/@var{target}/sys-include} | |
1358 | doesn't pre-exist. If @file{@var{prefix}/@var{target}/sys-include} does | |
1359 | pre-exist, the @var{dir} argument may be omitted. @command{fixincludes} | |
8a36672b | 1360 | will be run on these files to make them compatible with GCC@. |
264d65c1 AP |
1361 | |
1362 | @item --without-headers | |
1363 | Tells GCC not use any target headers from a libc when building a cross | |
2dd76960 | 1364 | compiler. When crossing to GNU/Linux, you need the headers so GCC |
264d65c1 | 1365 | can build the exception handling for libgcc. |
264d65c1 | 1366 | |
65a824f6 JT |
1367 | @item --with-libs |
1368 | @itemx --with-libs=``@var{dir1} @var{dir2} @dots{} @var{dirN}'' | |
4977bab6 | 1369 | Deprecated in favor of @option{--with-sysroot}. |
38209993 LG |
1370 | Specifies a list of directories which contain the target runtime |
1371 | libraries. These libraries will be copied into the @file{gcc} install | |
65a824f6 JT |
1372 | directory. If the directory list is omitted, this option has no |
1373 | effect. | |
cc11cc9b | 1374 | |
ef88b07d | 1375 | @item --with-newlib |
eea81d3e | 1376 | Specifies that @samp{newlib} is |
38209993 | 1377 | being used as the target C library. This causes @code{__eprintf} to be |
eea81d3e RO |
1378 | omitted from @file{libgcc.a} on the assumption that it will be provided by |
1379 | @samp{newlib}. | |
cc11cc9b PB |
1380 | |
1381 | @item --with-build-time-tools=@var{dir} | |
1382 | Specifies where to find the set of target tools (assembler, linker, etc.) | |
1383 | that will be used while building GCC itself. This option can be useful | |
1384 | if the directory layouts are different between the system you are building | |
1385 | GCC on, and the system where you will deploy it. | |
1386 | ||
1387 | For example, on a @option{ia64-hp-hpux} system, you may have the GNU | |
1388 | assembler and linker in @file{/usr/bin}, and the native tools in a | |
1389 | different path, and build a toolchain that expects to find the | |
1390 | native tools in @file{/usr/bin}. | |
1391 | ||
1392 | When you use this option, you should ensure that @var{dir} includes | |
1393 | @command{ar}, @command{as}, @command{ld}, @command{nm}, | |
1394 | @command{ranlib} and @command{strip} if necessary, and possibly | |
1395 | @command{objdump}. Otherwise, GCC may use an inconsistent set of | |
1396 | tools. | |
ef88b07d | 1397 | @end table |
f9047ed3 | 1398 | |
c1c3bb0c ME |
1399 | @subheading Java-Specific Options |
1400 | ||
1401 | The following option applies to the build of the Java front end. | |
1402 | ||
1403 | @table @code | |
1404 | @item --disable-libgcj | |
1405 | Specify that the run-time libraries | |
1406 | used by GCJ should not be built. This is useful in case you intend | |
1407 | to use GCJ with some other run-time, or you're going to install it | |
1408 | separately, or it just happens not to build on your particular | |
1409 | machine. In general, if the Java front end is enabled, the GCJ | |
1410 | libraries will be enabled too, unless they're known to not work on | |
1411 | the target platform. If GCJ is enabled but @samp{libgcj} isn't built, you | |
1412 | may need to port it; in this case, before modifying the top-level | |
1413 | @file{configure.in} so that @samp{libgcj} is enabled by default on this platform, | |
1414 | you may use @option{--enable-libgcj} to override the default. | |
1415 | ||
1416 | @end table | |
1417 | ||
1418 | The following options apply to building @samp{libgcj}. | |
1419 | ||
1420 | @subsubheading General Options | |
1421 | ||
1422 | @table @code | |
1423 | @item --disable-getenv-properties | |
1424 | Don't set system properties from @env{GCJ_PROPERTIES}. | |
1425 | ||
1426 | @item --enable-hash-synchronization | |
8a36672b | 1427 | Use a global hash table for monitor locks. Ordinarily, |
c1c3bb0c | 1428 | @samp{libgcj}'s @samp{configure} script automatically makes |
8a36672b | 1429 | the correct choice for this option for your platform. Only use |
c1c3bb0c ME |
1430 | this if you know you need the library to be configured differently. |
1431 | ||
1432 | @item --enable-interpreter | |
8a36672b JM |
1433 | Enable the Java interpreter. The interpreter is automatically |
1434 | enabled by default on all platforms that support it. This option | |
c1c3bb0c ME |
1435 | is really only useful if you want to disable the interpreter |
1436 | (using @option{--disable-interpreter}). | |
1437 | ||
1438 | @item --disable-java-net | |
8a36672b | 1439 | Disable java.net. This disables the native part of java.net only, |
c1c3bb0c ME |
1440 | using non-functional stubs for native method implementations. |
1441 | ||
1442 | @item --disable-jvmpi | |
1443 | Disable JVMPI support. | |
1444 | ||
1445 | @item --with-ecos | |
1446 | Enable runtime eCos target support. | |
1447 | ||
1448 | @item --without-libffi | |
8a36672b | 1449 | Don't use @samp{libffi}. This will disable the interpreter and JNI |
c1c3bb0c ME |
1450 | support as well, as these require @samp{libffi} to work. |
1451 | ||
1452 | @item --enable-libgcj-debug | |
1453 | Enable runtime debugging code. | |
1454 | ||
1455 | @item --enable-libgcj-multifile | |
1456 | If specified, causes all @file{.java} source files to be | |
1457 | compiled into @file{.class} files in one invocation of | |
8a36672b JM |
1458 | @samp{gcj}. This can speed up build time, but is more |
1459 | resource-intensive. If this option is unspecified or | |
c1c3bb0c ME |
1460 | disabled, @samp{gcj} is invoked once for each @file{.java} |
1461 | file to compile into a @file{.class} file. | |
1462 | ||
1463 | @item --with-libiconv-prefix=DIR | |
1464 | Search for libiconv in @file{DIR/include} and @file{DIR/lib}. | |
1465 | ||
1466 | @item --enable-sjlj-exceptions | |
4f6c2131 EB |
1467 | Force use of the @code{setjmp}/@code{longjmp}-based scheme for exceptions. |
1468 | @samp{configure} ordinarily picks the correct value based on the platform. | |
1469 | Only use this option if you are sure you need a different setting. | |
c1c3bb0c ME |
1470 | |
1471 | @item --with-system-zlib | |
1472 | Use installed @samp{zlib} rather than that included with GCC@. | |
1473 | ||
1474 | @item --with-win32-nlsapi=ansi, unicows or unicode | |
1475 | Indicates how MinGW @samp{libgcj} translates between UNICODE | |
8a36672b | 1476 | characters and the Win32 API@. |
c1c3bb0c ME |
1477 | @table @code |
1478 | @item ansi | |
1479 | Use the single-byte @code{char} and the Win32 A functions natively, | |
8a36672b | 1480 | translating to and from UNICODE when using these functions. If |
c1c3bb0c ME |
1481 | unspecified, this is the default. |
1482 | ||
1483 | @item unicows | |
8a36672b | 1484 | Use the @code{WCHAR} and Win32 W functions natively. Adds |
c1c3bb0c ME |
1485 | @code{-lunicows} to @file{libgcj.spec} to link with @samp{libunicows}. |
1486 | @file{unicows.dll} needs to be deployed on Microsoft Windows 9X machines | |
8a36672b | 1487 | running built executables. @file{libunicows.a}, an open-source |
c1c3bb0c ME |
1488 | import library around Microsoft's @code{unicows.dll}, is obtained from |
1489 | @uref{http://libunicows.sourceforge.net/}, which also gives details | |
1490 | on getting @file{unicows.dll} from Microsoft. | |
1491 | ||
1492 | @item unicode | |
8a36672b JM |
1493 | Use the @code{WCHAR} and Win32 W functions natively. Does @emph{not} |
1494 | add @code{-lunicows} to @file{libgcj.spec}. The built executables will | |
c1c3bb0c ME |
1495 | only run on Microsoft Windows NT and above. |
1496 | @end table | |
1497 | @end table | |
1498 | ||
1499 | @subsubheading AWT-Specific Options | |
1500 | ||
1501 | @table @code | |
1502 | @item --with-x | |
1503 | Use the X Window System. | |
1504 | ||
1505 | @item --enable-java-awt=PEER(S) | |
1506 | Specifies the AWT peer library or libraries to build alongside | |
8a36672b JM |
1507 | @samp{libgcj}. If this option is unspecified or disabled, AWT |
1508 | will be non-functional. Current valid values are @option{gtk} and | |
1509 | @option{xlib}. Multiple libraries should be separated by a | |
431ae0bf | 1510 | comma (i.e.@: @option{--enable-java-awt=gtk,xlib}). |
c1c3bb0c ME |
1511 | |
1512 | @item --enable-gtk-cairo | |
8a36672b | 1513 | Build the cairo Graphics2D implementation on GTK@. |
c1c3bb0c ME |
1514 | |
1515 | @item --enable-java-gc=TYPE | |
8a36672b | 1516 | Choose garbage collector. Defaults to @option{boehm} if unspecified. |
c1c3bb0c ME |
1517 | |
1518 | @item --disable-gtktest | |
1519 | Do not try to compile and run a test GTK+ program. | |
1520 | ||
1521 | @item --disable-glibtest | |
1522 | Do not try to compile and run a test GLIB program. | |
1523 | ||
1524 | @item --with-libart-prefix=PFX | |
1525 | Prefix where libart is installed (optional). | |
1526 | ||
1527 | @item --with-libart-exec-prefix=PFX | |
1528 | Exec prefix where libart is installed (optional). | |
1529 | ||
1530 | @item --disable-libarttest | |
1531 | Do not try to compile and run a test libart program. | |
1532 | ||
1533 | @end table | |
f42974dc DW |
1534 | |
1535 | @html | |
b8db17af | 1536 | <hr /> |
f42974dc DW |
1537 | <p> |
1538 | @end html | |
1539 | @ifhtml | |
1540 | @uref{./index.html,,Return to the GCC Installation page} | |
1541 | @end ifhtml | |
1542 | @end ifset | |
1543 | ||
1544 | @c ***Building**************************************************************** | |
6cfb3f16 | 1545 | @ifnothtml |
f42974dc DW |
1546 | @comment node-name, next, previous, up |
1547 | @node Building, Testing, Configuration, Installing GCC | |
6cfb3f16 | 1548 | @end ifnothtml |
f42974dc | 1549 | @ifset buildhtml |
f42974dc DW |
1550 | @ifnothtml |
1551 | @chapter Building | |
1552 | @end ifnothtml | |
1553 | @cindex Installing GCC: Building | |
1554 | ||
1555 | Now that GCC is configured, you are ready to build the compiler and | |
1556 | runtime libraries. | |
1557 | ||
b8df899a | 1558 | Some commands executed when making the compiler may fail (return a |
7ba4ca63 | 1559 | nonzero status) and be ignored by @command{make}. These failures, which |
b8df899a JM |
1560 | are often due to files that were not found, are expected, and can safely |
1561 | be ignored. | |
1562 | ||
1563 | It is normal to have compiler warnings when compiling certain files. | |
1564 | Unless you are a GCC developer, you can generally ignore these warnings | |
dd859b8a KG |
1565 | unless they cause compilation to fail. Developers should attempt to fix |
1566 | any warnings encountered, however they can temporarily continue past | |
1567 | warnings-as-errors by specifying the configure flag | |
1568 | @option{--disable-werror}. | |
b8df899a JM |
1569 | |
1570 | On certain old systems, defining certain environment variables such as | |
6cfb3f16 | 1571 | @env{CC} can interfere with the functioning of @command{make}. |
b8df899a JM |
1572 | |
1573 | If you encounter seemingly strange errors when trying to build the | |
1574 | compiler in a directory other than the source directory, it could be | |
1575 | because you have previously configured the compiler in the source | |
1576 | directory. Make sure you have done all the necessary preparations. | |
1577 | ||
1578 | If you build GCC on a BSD system using a directory stored in an old System | |
4c64396e | 1579 | V file system, problems may occur in running @command{fixincludes} if the |
b8df899a JM |
1580 | System V file system doesn't support symbolic links. These problems |
1581 | result in a failure to fix the declaration of @code{size_t} in | |
1582 | @file{sys/types.h}. If you find that @code{size_t} is a signed type and | |
1583 | that type mismatches occur, this could be the cause. | |
1584 | ||
161d7b59 | 1585 | The solution is not to use such a directory for building GCC@. |
f42974dc | 1586 | |
80521187 GP |
1587 | When building from SVN or snapshots, or if you modify parser sources, |
1588 | you need the Bison parser generator installed. If you do not modify | |
f85b8d1a JM |
1589 | parser sources, releases contain the Bison-generated files and you do |
1590 | not need Bison installed to build them. | |
1591 | ||
80521187 | 1592 | When building from SVN or snapshots, or if you modify Texinfo |
1a598a97 | 1593 | documentation, you need version 4.4 or later of Texinfo installed if you |
f85b8d1a JM |
1594 | want Info documentation to be regenerated. Releases contain Info |
1595 | documentation pre-built for the unmodified documentation in the release. | |
1596 | ||
f42974dc DW |
1597 | @section Building a native compiler |
1598 | ||
f5c3bb4b PB |
1599 | For a native build, the default configuration is to perform |
1600 | a 3-stage bootstrap of the compiler when @samp{make} is invoked. | |
1601 | This will build the entire GCC system and ensure that it compiles | |
1602 | itself correctly. It can be disabled with the @option{--disable-bootstrap} | |
1603 | parameter to @samp{configure}, but bootstrapping is suggested because | |
1604 | the compiler will be tested more completely and could also have | |
1605 | better performance. | |
1606 | ||
1607 | The bootstrapping process will complete the following steps: | |
f42974dc DW |
1608 | |
1609 | @itemize @bullet | |
1610 | @item | |
80521187 | 1611 | Build tools necessary to build the compiler. |
f42974dc DW |
1612 | |
1613 | @item | |
cc11cc9b PB |
1614 | Perform a 3-stage bootstrap of the compiler. This includes building |
1615 | three times the target tools for use by the compiler such as binutils | |
1616 | (bfd, binutils, gas, gprof, ld, and opcodes) if they have been | |
1617 | individually linked or moved into the top level GCC source tree before | |
1618 | configuring. | |
f42974dc DW |
1619 | |
1620 | @item | |
1621 | Perform a comparison test of the stage2 and stage3 compilers. | |
1622 | ||
1623 | @item | |
1624 | Build runtime libraries using the stage3 compiler from the previous step. | |
f9047ed3 | 1625 | |
f42974dc DW |
1626 | @end itemize |
1627 | ||
38209993 | 1628 | If you are short on disk space you might consider @samp{make |
cc11cc9b PB |
1629 | bootstrap-lean} instead. The sequence of compilation is the |
1630 | same described above, but object files from the stage1 and | |
f42974dc DW |
1631 | stage2 of the 3-stage bootstrap of the compiler are deleted as |
1632 | soon as they are no longer needed. | |
1633 | ||
f42974dc DW |
1634 | If you want to save additional space during the bootstrap and in |
1635 | the final installation as well, you can build the compiler binaries | |
8c085f6f | 1636 | without debugging information as in the following example. This will save |
f42974dc DW |
1637 | roughly 40% of disk space both for the bootstrap and the final installation. |
1638 | (Libraries will still contain debugging information.) | |
1639 | ||
3ab51846 | 1640 | @smallexample |
8c085f6f JJ |
1641 | make CFLAGS='-O' LIBCFLAGS='-g -O2' \ |
1642 | LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap | |
3ab51846 | 1643 | @end smallexample |
8c085f6f | 1644 | |
eea81d3e RO |
1645 | If you wish to use non-default GCC flags when compiling the stage2 and |
1646 | stage3 compilers, set @code{BOOT_CFLAGS} on the command line when doing | |
cc11cc9b | 1647 | @samp{make}. Non-default optimization flags are less well |
f85b8d1a JM |
1648 | tested here than the default of @samp{-g -O2}, but should still work. |
1649 | In a few cases, you may find that you need to specify special flags such | |
1650 | as @option{-msoft-float} here to complete the bootstrap; or, if the | |
1651 | native compiler miscompiles the stage1 compiler, you may need to work | |
1652 | around this, by choosing @code{BOOT_CFLAGS} to avoid the parts of the | |
1653 | stage1 compiler that were miscompiled, or by using @samp{make | |
1654 | bootstrap4} to increase the number of stages of bootstrap. | |
1655 | ||
cc11cc9b PB |
1656 | Note that using non-standard @code{CFLAGS} can cause bootstrap to fail |
1657 | if these trigger a warning with the new compiler. For example using | |
1658 | @samp{-O2 -g -mcpu=i686} on @code{i686-pc-linux-gnu} will cause bootstrap | |
1659 | failure as @option{-mcpu=} is deprecated in 3.4.0 and above. | |
c872077c AP |
1660 | |
1661 | ||
6cfb3f16 | 1662 | If you used the flag @option{--enable-languages=@dots{}} to restrict |
f42974dc | 1663 | the compilers to be built, only those you've actually enabled will be |
767094dd | 1664 | built. This will of course only build those runtime libraries, for |
f42974dc | 1665 | which the particular compiler has been built. Please note, |
cc11cc9b | 1666 | that re-defining @env{LANGUAGES} when calling @samp{make} |
ef88b07d | 1667 | @strong{does not} work anymore! |
f42974dc | 1668 | |
f85b8d1a | 1669 | If the comparison of stage2 and stage3 fails, this normally indicates |
eea81d3e | 1670 | that the stage2 compiler has compiled GCC incorrectly, and is therefore |
f85b8d1a JM |
1671 | a potentially serious bug which you should investigate and report. (On |
1672 | a few systems, meaningful comparison of object files is impossible; they | |
1673 | always appear ``different''. If you encounter this problem, you will | |
1674 | need to disable comparison in the @file{Makefile}.) | |
f42974dc | 1675 | |
cc11cc9b PB |
1676 | If you do not want to bootstrap your compiler, you can configure with |
1677 | @option{--disable-bootstrap}. In particular cases, you may want to | |
1678 | bootstrap your compiler even if the target system is not the same as | |
1679 | the one you are building on: for example, you could build a | |
1680 | @code{powerpc-unknown-linux-gnu} toolchain on a | |
1681 | @code{powerpc64-unknown-linux-gnu} host. In this case, pass | |
1682 | @option{--enable-bootstrap} to the configure script. | |
1683 | ||
1684 | ||
f42974dc DW |
1685 | @section Building a cross compiler |
1686 | ||
f42974dc DW |
1687 | When building a cross compiler, it is not generally possible to do a |
1688 | 3-stage bootstrap of the compiler. This makes for an interesting problem | |
161d7b59 | 1689 | as parts of GCC can only be built with GCC@. |
f42974dc DW |
1690 | |
1691 | To build a cross compiler, we first recommend building and installing a | |
1692 | native compiler. You can then use the native GCC compiler to build the | |
635771af JM |
1693 | cross compiler. The installed native compiler needs to be GCC version |
1694 | 2.95 or later. | |
f42974dc DW |
1695 | |
1696 | Assuming you have already installed a native copy of GCC and configured | |
6cfb3f16 | 1697 | your cross compiler, issue the command @command{make}, which performs the |
f42974dc DW |
1698 | following steps: |
1699 | ||
1700 | @itemize @bullet | |
1701 | @item | |
80521187 | 1702 | Build host tools necessary to build the compiler. |
f42974dc DW |
1703 | |
1704 | @item | |
1705 | Build target tools for use by the compiler such as binutils (bfd, | |
1706 | binutils, gas, gprof, ld, and opcodes) | |
1707 | if they have been individually linked or moved into the top level GCC source | |
1708 | tree before configuring. | |
1709 | ||
1710 | @item | |
1711 | Build the compiler (single stage only). | |
1712 | ||
1713 | @item | |
1714 | Build runtime libraries using the compiler from the previous step. | |
1715 | @end itemize | |
1716 | ||
1717 | Note that if an error occurs in any step the make process will exit. | |
1718 | ||
01e97976 JM |
1719 | If you are not building GNU binutils in the same source tree as GCC, |
1720 | you will need a cross-assembler and cross-linker installed before | |
1721 | configuring GCC@. Put them in the directory | |
1722 | @file{@var{prefix}/@var{target}/bin}. Here is a table of the tools | |
1723 | you should put in this directory: | |
1724 | ||
1725 | @table @file | |
1726 | @item as | |
1727 | This should be the cross-assembler. | |
1728 | ||
1729 | @item ld | |
1730 | This should be the cross-linker. | |
1731 | ||
1732 | @item ar | |
1733 | This should be the cross-archiver: a program which can manipulate | |
1734 | archive files (linker libraries) in the target machine's format. | |
1735 | ||
1736 | @item ranlib | |
1737 | This should be a program to construct a symbol table in an archive file. | |
1738 | @end table | |
1739 | ||
1740 | The installation of GCC will find these programs in that directory, | |
1741 | and copy or link them to the proper place to for the cross-compiler to | |
1742 | find them when run later. | |
1743 | ||
1744 | The easiest way to provide these files is to build the Binutils package. | |
1745 | Configure it with the same @option{--host} and @option{--target} | |
1746 | options that you use for configuring GCC, then build and install | |
1747 | them. They install their executables automatically into the proper | |
1748 | directory. Alas, they do not support all the targets that GCC | |
1749 | supports. | |
1750 | ||
1751 | If you are not building a C library in the same source tree as GCC, | |
1752 | you should also provide the target libraries and headers before | |
1753 | configuring GCC, specifying the directories with | |
1754 | @option{--with-sysroot} or @option{--with-headers} and | |
1755 | @option{--with-libs}. Many targets also require ``start files'' such | |
1756 | as @file{crt0.o} and | |
1757 | @file{crtn.o} which are linked into each executable. There may be several | |
1758 | alternatives for @file{crt0.o}, for use with profiling or other | |
1759 | compilation options. Check your target's definition of | |
1760 | @code{STARTFILE_SPEC} to find out what start files it uses. | |
1761 | ||
f42974dc DW |
1762 | @section Building in parallel |
1763 | ||
d7f755c3 PB |
1764 | GNU Make 3.79 and above, which is necessary to build GCC, support |
1765 | building in parallel. To activate this, you can use @samp{make -j 2} | |
1766 | instead of @samp{make}. You can also specify a bigger number, and | |
cc11cc9b PB |
1767 | in most cases using a value greater than the number of processors in |
1768 | your machine will result in fewer and shorter I/O latency hits, thus | |
1769 | improving overall throughput; this is especially true for slow drives | |
1770 | and network filesystems. | |
f42974dc | 1771 | |
e23381df GB |
1772 | @section Building the Ada compiler |
1773 | ||
1774 | In order to build GNAT, the Ada compiler, you need a working GNAT | |
cc11cc9b PB |
1775 | compiler (GNAT version 3.14 or later, or GCC version 3.1 or later). |
1776 | This includes GNAT tools such as @command{gnatmake} and | |
1777 | @command{gnatlink}, since the Ada front end is written in Ada and | |
1778 | uses some GNAT-specific extensions. | |
1779 | ||
1780 | In order to build a cross compiler, it is suggested to install | |
1781 | the new compiler as native first, and then use it to build the cross | |
1782 | compiler. | |
e23381df | 1783 | |
38e23049 JM |
1784 | @command{configure} does not test whether the GNAT installation works |
1785 | and has a sufficiently recent version; if too old a GNAT version is | |
1786 | installed, the build will fail unless @option{--enable-languages} is | |
1787 | used to disable building the Ada front end. | |
e23381df | 1788 | |
8f231b5d JH |
1789 | @section Building with profile feedback |
1790 | ||
1791 | It is possible to use profile feedback to optimize the compiler itself. This | |
1792 | should result in a faster compiler binary. Experiments done on x86 using gcc | |
1793 | 3.3 showed approximately 7 percent speedup on compiling C programs. To | |
cc11cc9b | 1794 | bootstrap the compiler with profile feedback, use @code{make profiledbootstrap}. |
8f231b5d JH |
1795 | |
1796 | When @samp{make profiledbootstrap} is run, it will first build a @code{stage1} | |
1797 | compiler. This compiler is used to build a @code{stageprofile} compiler | |
1798 | instrumented to collect execution counts of instruction and branch | |
1799 | probabilities. Then runtime libraries are compiled with profile collected. | |
1800 | Finally a @code{stagefeedback} compiler is built using the information collected. | |
1801 | ||
cc11cc9b | 1802 | Unlike standard bootstrap, several additional restrictions apply. The |
8f231b5d JH |
1803 | compiler used to build @code{stage1} needs to support a 64-bit integral type. |
1804 | It is recommended to only use GCC for this. Also parallel make is currently | |
1805 | not supported since collisions in profile collecting may occur. | |
1806 | ||
f42974dc | 1807 | @html |
b8db17af | 1808 | <hr /> |
f42974dc DW |
1809 | <p> |
1810 | @end html | |
1811 | @ifhtml | |
1812 | @uref{./index.html,,Return to the GCC Installation page} | |
1813 | @end ifhtml | |
1814 | @end ifset | |
1815 | ||
1816 | @c ***Testing***************************************************************** | |
6cfb3f16 | 1817 | @ifnothtml |
f42974dc DW |
1818 | @comment node-name, next, previous, up |
1819 | @node Testing, Final install, Building, Installing GCC | |
6cfb3f16 | 1820 | @end ifnothtml |
f42974dc | 1821 | @ifset testhtml |
f42974dc DW |
1822 | @ifnothtml |
1823 | @chapter Installing GCC: Testing | |
1824 | @end ifnothtml | |
1825 | @cindex Testing | |
1826 | @cindex Installing GCC: Testing | |
1827 | @cindex Testsuite | |
1828 | ||
f97903cc JJ |
1829 | Before you install GCC, we encourage you to run the testsuites and to |
1830 | compare your results with results from a similar configuration that have | |
1831 | been submitted to the | |
1832 | @uref{http://gcc.gnu.org/ml/gcc-testresults/,,gcc-testresults mailing list}. | |
05253aed JJ |
1833 | Some of these archived results are linked from the build status lists |
1834 | at @uref{http://gcc.gnu.org/buildstat.html}, although not everyone who | |
1835 | reports a successful build runs the testsuites and submits the results. | |
f97903cc JJ |
1836 | This step is optional and may require you to download additional software, |
1837 | but it can give you confidence in your new GCC installation or point out | |
8a36672b | 1838 | problems before you install and start using your new GCC@. |
f42974dc | 1839 | |
f9047ed3 | 1840 | First, you must have @uref{download.html,,downloaded the testsuites}. |
f97903cc JJ |
1841 | These are part of the full distribution, but if you downloaded the |
1842 | ``core'' compiler plus any front ends, you must download the testsuites | |
1843 | separately. | |
f42974dc | 1844 | |
f97903cc | 1845 | Second, you must have the testing tools installed. This includes |
80521187 GP |
1846 | @uref{http://www.gnu.org/software/dejagnu/,,DejaGnu}, Tcl, and Expect; |
1847 | the DejaGnu site has links to these. | |
f42974dc | 1848 | |
8cacda7c GP |
1849 | If the directories where @command{runtest} and @command{expect} were |
1850 | installed are not in the @env{PATH}, you may need to set the following | |
1851 | environment variables appropriately, as in the following example (which | |
1852 | assumes that DejaGnu has been installed under @file{/usr/local}): | |
f42974dc | 1853 | |
3ab51846 | 1854 | @smallexample |
f42974dc DW |
1855 | TCL_LIBRARY = /usr/local/share/tcl8.0 |
1856 | DEJAGNULIBS = /usr/local/share/dejagnu | |
3ab51846 | 1857 | @end smallexample |
f42974dc | 1858 | |
8cacda7c | 1859 | (On systems such as Cygwin, these paths are required to be actual |
f42974dc | 1860 | paths, not mounts or links; presumably this is due to some lack of |
8cacda7c | 1861 | portability in the DejaGnu code.) |
ecb7d6b3 | 1862 | |
f42974dc DW |
1863 | |
1864 | Finally, you can run the testsuite (which may take a long time): | |
3ab51846 | 1865 | @smallexample |
ef88b07d | 1866 | cd @var{objdir}; make -k check |
3ab51846 | 1867 | @end smallexample |
f42974dc | 1868 | |
794aca5d WB |
1869 | This will test various components of GCC, such as compiler |
1870 | front ends and runtime libraries. While running the testsuite, DejaGnu | |
1871 | might emit some harmless messages resembling | |
daf2f129 | 1872 | @samp{WARNING: Couldn't find the global config file.} or |
794aca5d | 1873 | @samp{WARNING: Couldn't find tool init file} that can be ignored. |
06809951 | 1874 | |
962e6e00 | 1875 | @section How can you run the testsuite on selected tests? |
f42974dc | 1876 | |
794aca5d WB |
1877 | In order to run sets of tests selectively, there are targets |
1878 | @samp{make check-gcc} and @samp{make check-g++} | |
1879 | in the @file{gcc} subdirectory of the object directory. You can also | |
1880 | just run @samp{make check} in a subdirectory of the object directory. | |
1881 | ||
1882 | ||
1883 | A more selective way to just run all @command{gcc} execute tests in the | |
1884 | testsuite is to use | |
f42974dc | 1885 | |
3ab51846 | 1886 | @smallexample |
6cfb3f16 | 1887 | make check-gcc RUNTESTFLAGS="execute.exp @var{other-options}" |
3ab51846 | 1888 | @end smallexample |
f42974dc | 1889 | |
794aca5d WB |
1890 | Likewise, in order to run only the @command{g++} ``old-deja'' tests in |
1891 | the testsuite with filenames matching @samp{9805*}, you would use | |
f42974dc | 1892 | |
3ab51846 | 1893 | @smallexample |
6cfb3f16 | 1894 | make check-g++ RUNTESTFLAGS="old-deja.exp=9805* @var{other-options}" |
3ab51846 | 1895 | @end smallexample |
f42974dc | 1896 | |
6cfb3f16 JM |
1897 | The @file{*.exp} files are located in the testsuite directories of the GCC |
1898 | source, the most important ones being @file{compile.exp}, | |
1899 | @file{execute.exp}, @file{dg.exp} and @file{old-deja.exp}. | |
1900 | To get a list of the possible @file{*.exp} files, pipe the | |
38209993 | 1901 | output of @samp{make check} into a file and look at the |
6cfb3f16 | 1902 | @samp{Running @dots{} .exp} lines. |
f42974dc | 1903 | |
e08737dc PE |
1904 | @section Passing options and running multiple testsuites |
1905 | ||
1906 | You can pass multiple options to the testsuite using the | |
1907 | @samp{--target_board} option of DejaGNU, either passed as part of | |
1908 | @samp{RUNTESTFLAGS}, or directly to @command{runtest} if you prefer to | |
1909 | work outside the makefiles. For example, | |
1910 | ||
3ab51846 | 1911 | @smallexample |
311c6da4 | 1912 | make check-g++ RUNTESTFLAGS="--target_board=unix/-O3/-fmerge-constants" |
3ab51846 | 1913 | @end smallexample |
e08737dc PE |
1914 | |
1915 | will run the standard @command{g++} testsuites (``unix'' is the target name | |
1916 | for a standard native testsuite situation), passing | |
311c6da4 | 1917 | @samp{-O3 -fmerge-constants} to the compiler on every test, i.e., |
e08737dc PE |
1918 | slashes separate options. |
1919 | ||
1920 | You can run the testsuites multiple times using combinations of options | |
1921 | with a syntax similar to the brace expansion of popular shells: | |
1922 | ||
3ab51846 | 1923 | @smallexample |
d817041f | 1924 | @dots{}"--target_board=arm-sim/@{-mhard-float,-msoft-float@}@{-O1,-O2,-O3,@}" |
3ab51846 | 1925 | @end smallexample |
e08737dc PE |
1926 | |
1927 | (Note the empty option caused by the trailing comma in the final group.) | |
1928 | The following will run each testsuite eight times using the @samp{arm-sim} | |
1929 | target, as if you had specified all possible combinations yourself: | |
1930 | ||
3ab51846 | 1931 | @smallexample |
e08737dc PE |
1932 | --target_board=arm-sim/-mhard-float/-O1 |
1933 | --target_board=arm-sim/-mhard-float/-O2 | |
1934 | --target_board=arm-sim/-mhard-float/-O3 | |
1935 | --target_board=arm-sim/-mhard-float | |
1936 | --target_board=arm-sim/-msoft-float/-O1 | |
1937 | --target_board=arm-sim/-msoft-float/-O2 | |
1938 | --target_board=arm-sim/-msoft-float/-O3 | |
1939 | --target_board=arm-sim/-msoft-float | |
3ab51846 | 1940 | @end smallexample |
e08737dc PE |
1941 | |
1942 | They can be combined as many times as you wish, in arbitrary ways. This | |
1943 | list: | |
1944 | ||
3ab51846 | 1945 | @smallexample |
e08737dc | 1946 | @dots{}"--target_board=unix/-Wextra@{-O3,-fno-strength-reduce@}@{-fomit-frame-pointer,@}" |
3ab51846 | 1947 | @end smallexample |
e08737dc PE |
1948 | |
1949 | will generate four combinations, all involving @samp{-Wextra}. | |
1950 | ||
1951 | The disadvantage to this method is that the testsuites are run in serial, | |
1952 | which is a waste on multiprocessor systems. For users with GNU Make and | |
1953 | a shell which performs brace expansion, you can run the testsuites in | |
1954 | parallel by having the shell perform the combinations and @command{make} | |
1955 | do the parallel runs. Instead of using @samp{--target_board}, use a | |
1956 | special makefile target: | |
1957 | ||
3ab51846 | 1958 | @smallexample |
e08737dc | 1959 | make -j@var{N} check-@var{testsuite}//@var{test-target}/@var{option1}/@var{option2}/@dots{} |
3ab51846 | 1960 | @end smallexample |
e08737dc PE |
1961 | |
1962 | For example, | |
1963 | ||
3ab51846 | 1964 | @smallexample |
e08737dc | 1965 | make -j3 check-gcc//sh-hms-sim/@{-m1,-m2,-m3,-m3e,-m4@}/@{,-nofpu@} |
3ab51846 | 1966 | @end smallexample |
e08737dc PE |
1967 | |
1968 | will run three concurrent ``make-gcc'' testsuites, eventually testing all | |
1969 | ten combinations as described above. Note that this is currently only | |
1970 | supported in the @file{gcc} subdirectory. (To see how this works, try | |
1971 | typing @command{echo} before the example given here.) | |
1972 | ||
1973 | ||
1974 | @section Additional testing for Java Class Libraries | |
1975 | ||
688d8b84 RM |
1976 | The Java runtime tests can be executed via @samp{make check} |
1977 | in the @file{@var{target}/libjava/testsuite} directory in | |
1978 | the build tree. | |
f702e700 | 1979 | |
f702e700 JJ |
1980 | The @uref{http://sources.redhat.com/mauve/,,Mauve Project} provides |
1981 | a suite of tests for the Java Class Libraries. This suite can be run | |
1982 | as part of libgcj testing by placing the Mauve tree within the libjava | |
1983 | testsuite at @file{libjava/testsuite/libjava.mauve/mauve}, or by | |
1984 | specifying the location of that tree when invoking @samp{make}, as in | |
1985 | @samp{make MAUVEDIR=~/mauve check}. | |
1986 | ||
07a647a3 | 1987 | @uref{http://sources.redhat.com/mauve/jacks.html,,Jacks} |
2eac577f | 1988 | is a free testsuite that tests Java compiler front ends. This suite |
3b41afd9 | 1989 | can be run as part of libgcj testing by placing the Jacks tree within |
582f6e6d TT |
1990 | the libjava testsuite at @file{libjava/testsuite/libjava.jacks/jacks}. |
1991 | ||
f42974dc DW |
1992 | @section How to interpret test results |
1993 | ||
794aca5d | 1994 | The result of running the testsuite are various @file{*.sum} and @file{*.log} |
767094dd | 1995 | files in the testsuite subdirectories. The @file{*.log} files contain a |
f42974dc | 1996 | detailed log of the compiler invocations and the corresponding |
daf2f129 JM |
1997 | results, the @file{*.sum} files summarize the results. These summaries |
1998 | contain status codes for all tests: | |
f42974dc DW |
1999 | |
2000 | @itemize @bullet | |
2001 | @item | |
2002 | PASS: the test passed as expected | |
2003 | @item | |
2004 | XPASS: the test unexpectedly passed | |
2005 | @item | |
2006 | FAIL: the test unexpectedly failed | |
2007 | @item | |
2008 | XFAIL: the test failed as expected | |
2009 | @item | |
2010 | UNSUPPORTED: the test is not supported on this platform | |
2011 | @item | |
2012 | ERROR: the testsuite detected an error | |
2013 | @item | |
2014 | WARNING: the testsuite detected a possible problem | |
2015 | @end itemize | |
2016 | ||
38209993 | 2017 | It is normal for some tests to report unexpected failures. At the |
962e6e00 JM |
2018 | current time the testing harness does not allow fine grained control |
2019 | over whether or not a test is expected to fail. This problem should | |
2020 | be fixed in future releases. | |
f42974dc DW |
2021 | |
2022 | ||
2023 | @section Submitting test results | |
2024 | ||
2025 | If you want to report the results to the GCC project, use the | |
767094dd | 2026 | @file{contrib/test_summary} shell script. Start it in the @var{objdir} with |
f42974dc | 2027 | |
3ab51846 | 2028 | @smallexample |
6cfb3f16 JM |
2029 | @var{srcdir}/contrib/test_summary -p your_commentary.txt \ |
2030 | -m gcc-testresults@@gcc.gnu.org |sh | |
3ab51846 | 2031 | @end smallexample |
f42974dc | 2032 | |
6cfb3f16 | 2033 | This script uses the @command{Mail} program to send the results, so |
767094dd | 2034 | make sure it is in your @env{PATH}. The file @file{your_commentary.txt} is |
f42974dc | 2035 | prepended to the testsuite summary and should contain any special |
767094dd | 2036 | remarks you have on your results or your build environment. Please |
f42974dc | 2037 | do not edit the testsuite result block or the subject line, as these |
05c425a9 | 2038 | messages may be automatically processed. |
f42974dc | 2039 | |
aed5964b | 2040 | @html |
b8db17af | 2041 | <hr /> |
aed5964b JM |
2042 | <p> |
2043 | @end html | |
2044 | @ifhtml | |
2045 | @uref{./index.html,,Return to the GCC Installation page} | |
2046 | @end ifhtml | |
f42974dc DW |
2047 | @end ifset |
2048 | ||
2049 | @c ***Final install*********************************************************** | |
6cfb3f16 | 2050 | @ifnothtml |
f42974dc DW |
2051 | @comment node-name, next, previous, up |
2052 | @node Final install, , Testing, Installing GCC | |
6cfb3f16 | 2053 | @end ifnothtml |
f42974dc | 2054 | @ifset finalinstallhtml |
f42974dc DW |
2055 | @ifnothtml |
2056 | @chapter Installing GCC: Final installation | |
2057 | @end ifnothtml | |
2058 | ||
eea81d3e | 2059 | Now that GCC has been built (and optionally tested), you can install it with |
3ab51846 | 2060 | @smallexample |
eea81d3e | 2061 | cd @var{objdir}; make install |
3ab51846 | 2062 | @end smallexample |
f42974dc | 2063 | |
06809951 | 2064 | We strongly recommend to install into a target directory where there is |
4b322f43 JB |
2065 | no previous version of GCC present. Also, the GNAT runtime should not |
2066 | be stripped, as this would break certain features of the debugger that | |
2067 | depend on this debugging information (catching Ada exceptions for | |
2068 | instance). | |
06809951 | 2069 | |
f42974dc | 2070 | That step completes the installation of GCC; user level binaries can |
8e5f33ff GK |
2071 | be found in @file{@var{prefix}/bin} where @var{prefix} is the value |
2072 | you specified with the @option{--prefix} to configure (or | |
2073 | @file{/usr/local} by default). (If you specified @option{--bindir}, | |
2074 | that directory will be used instead; otherwise, if you specified | |
2075 | @option{--exec-prefix}, @file{@var{exec-prefix}/bin} will be used.) | |
2076 | Headers for the C++ and Java libraries are installed in | |
2077 | @file{@var{prefix}/include}; libraries in @file{@var{libdir}} | |
2078 | (normally @file{@var{prefix}/lib}); internal parts of the compiler in | |
2079 | @file{@var{libdir}/gcc} and @file{@var{libexecdir}/gcc}; documentation | |
2080 | in info format in @file{@var{infodir}} (normally | |
2081 | @file{@var{prefix}/info}). | |
f42974dc | 2082 | |
53b50ac1 CC |
2083 | When installing cross-compilers, GCC's executables |
2084 | are not only installed into @file{@var{bindir}}, that | |
2085 | is, @file{@var{exec-prefix}/bin}, but additionally into | |
2086 | @file{@var{exec-prefix}/@var{target-alias}/bin}, if that directory | |
2087 | exists. Typically, such @dfn{tooldirs} hold target-specific | |
2088 | binutils, including assembler and linker. | |
2089 | ||
2090 | Installation into a temporary staging area or into a @command{chroot} | |
2091 | jail can be achieved with the command | |
2092 | ||
3ab51846 | 2093 | @smallexample |
53b50ac1 | 2094 | make DESTDIR=@var{path-to-rootdir} install |
3ab51846 | 2095 | @end smallexample |
53b50ac1 CC |
2096 | |
2097 | @noindent where @var{path-to-rootdir} is the absolute path of | |
2098 | a directory relative to which all installation paths will be | |
2099 | interpreted. Note that the directory specified by @code{DESTDIR} | |
2100 | need not exist yet; it will be created if necessary. | |
2101 | ||
2102 | There is a subtle point with tooldirs and @code{DESTDIR}: | |
2103 | If you relocate a cross-compiler installation with | |
2104 | e.g.@: @samp{DESTDIR=@var{rootdir}}, then the directory | |
2105 | @file{@var{rootdir}/@var{exec-prefix}/@var{target-alias}/bin} will | |
2106 | be filled with duplicated GCC executables only if it already exists, | |
2107 | it will not be created otherwise. This is regarded as a feature, | |
2108 | not as a bug, because it gives slightly more control to the packagers | |
2109 | using the @code{DESTDIR} feature. | |
2110 | ||
cc11cc9b | 2111 | If you are bootstrapping a released version of GCC then please |
f97a5bda JJ |
2112 | quickly review the build status page for your release, available from |
2113 | @uref{http://gcc.gnu.org/buildstat.html}. | |
c5997381 JJ |
2114 | If your system is not listed for the version of GCC that you built, |
2115 | send a note to | |
eea81d3e | 2116 | @email{gcc@@gcc.gnu.org} indicating |
8a36672b | 2117 | that you successfully built and installed GCC@. |
c5997381 | 2118 | Include the following information: |
f42974dc | 2119 | |
c5997381 JJ |
2120 | @itemize @bullet |
2121 | @item | |
962e6e00 | 2122 | Output from running @file{@var{srcdir}/config.guess}. Do not send |
c5997381 JJ |
2123 | that file itself, just the one-line output from running it. |
2124 | ||
2125 | @item | |
2dd76960 | 2126 | The output of @samp{gcc -v} for your newly installed @command{gcc}. |
c5997381 JJ |
2127 | This tells us which version of GCC you built and the options you passed to |
2128 | configure. | |
2129 | ||
2b46bc67 JJ |
2130 | @item |
2131 | Whether you enabled all languages or a subset of them. If you used a | |
2132 | full distribution then this information is part of the configure | |
2133 | options in the output of @samp{gcc -v}, but if you downloaded the | |
2134 | ``core'' compiler plus additional front ends then it isn't apparent | |
2135 | which ones you built unless you tell us about it. | |
2136 | ||
c5997381 JJ |
2137 | @item |
2138 | If the build was for GNU/Linux, also include: | |
2139 | @itemize @bullet | |
2140 | @item | |
2141 | The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3); | |
2142 | this information should be available from @file{/etc/issue}. | |
2143 | ||
2144 | @item | |
2145 | The version of the Linux kernel, available from @samp{uname --version} | |
2146 | or @samp{uname -a}. | |
2147 | ||
2148 | @item | |
2149 | The version of glibc you used; for RPM-based systems like Red Hat, | |
b9da07da JJ |
2150 | Mandrake, and SuSE type @samp{rpm -q glibc} to get the glibc version, |
2151 | and on systems like Debian and Progeny use @samp{dpkg -l libc6}. | |
c5997381 JJ |
2152 | @end itemize |
2153 | For other systems, you can include similar information if you think it is | |
2154 | relevant. | |
2155 | ||
2156 | @item | |
2157 | Any other information that you think would be useful to people building | |
2158 | GCC on the same configuration. The new entry in the build status list | |
2159 | will include a link to the archived copy of your message. | |
2160 | @end itemize | |
c009f01f JJ |
2161 | |
2162 | We'd also like to know if the | |
2163 | @ifnothtml | |
2164 | @ref{Specific, host/target specific installation notes} | |
2165 | @end ifnothtml | |
2166 | @ifhtml | |
2167 | @uref{specific.html,,host/target specific installation notes} | |
2168 | @end ifhtml | |
2169 | didn't include your host/target information or if that information is | |
2170 | incomplete or out of date. Send a note to | |
962e6e00 | 2171 | @email{gcc@@gcc.gnu.org} detailing how the information should be changed. |
f42974dc | 2172 | |
962e6e00 | 2173 | If you find a bug, please report it following the |
f42974dc DW |
2174 | @uref{../bugs.html,,bug reporting guidelines}. |
2175 | ||
ab130aa5 | 2176 | If you want to print the GCC manuals, do @samp{cd @var{objdir}; make |
1a598a97 | 2177 | dvi}. You will need to have @command{texi2dvi} (version at least 4.4) |
ab130aa5 JM |
2178 | and @TeX{} installed. This creates a number of @file{.dvi} files in |
2179 | subdirectories of @file{@var{objdir}}; these may be converted for | |
cc5c2741 BM |
2180 | printing with programs such as @command{dvips}. Alternately, by using |
2181 | @samp{make pdf} in place of @samp{make dvi}, you can create documentation | |
2182 | in the form of @file{.pdf} files; this requires @command{texi2pdf}, which | |
2183 | is included with Texinfo version 4.8 and later. You can also | |
ab130aa5 JM |
2184 | @uref{http://www.gnu.org/order/order.html,,buy printed manuals from the |
2185 | Free Software Foundation}, though such manuals may not be for the most | |
161d7b59 | 2186 | recent version of GCC@. |
ab130aa5 | 2187 | |
9d65c5cb | 2188 | If you would like to generate online HTML documentation, do @samp{cd |
f995c51f JW |
2189 | @var{objdir}; make html} and HTML will be generated for the gcc manuals in |
2190 | @file{@var{objdir}/gcc/HTML}. | |
9d65c5cb | 2191 | |
f42974dc | 2192 | @html |
b8db17af | 2193 | <hr /> |
f42974dc DW |
2194 | <p> |
2195 | @end html | |
2196 | @ifhtml | |
2197 | @uref{./index.html,,Return to the GCC Installation page} | |
2198 | @end ifhtml | |
2199 | @end ifset | |
2200 | ||
2201 | @c ***Binaries**************************************************************** | |
6cfb3f16 | 2202 | @ifnothtml |
f42974dc DW |
2203 | @comment node-name, next, previous, up |
2204 | @node Binaries, Specific, Installing GCC, Top | |
6cfb3f16 | 2205 | @end ifnothtml |
f42974dc | 2206 | @ifset binarieshtml |
f42974dc DW |
2207 | @ifnothtml |
2208 | @chapter Installing GCC: Binaries | |
2209 | @end ifnothtml | |
2210 | @cindex Binaries | |
2211 | @cindex Installing GCC: Binaries | |
2212 | ||
161d7b59 | 2213 | We are often asked about pre-compiled versions of GCC@. While we cannot |
f42974dc DW |
2214 | provide these for all platforms, below you'll find links to binaries for |
2215 | various platforms where creating them by yourself is not easy due to various | |
2216 | reasons. | |
2217 | ||
2218 | Please note that we did not create these binaries, nor do we | |
2219 | support them. If you have any problems installing them, please | |
2220 | contact their makers. | |
2221 | ||
2222 | @itemize | |
2223 | @item | |
df002c7d DE |
2224 | AIX: |
2225 | @itemize | |
2226 | @item | |
ff4c5e7b | 2227 | @uref{http://www.bullfreeware.com,,Bull's Freeware and Shareware Archive for AIX}; |
df002c7d DE |
2228 | |
2229 | @item | |
8d5362b7 | 2230 | @uref{http://aixpdslib.seas.ucla.edu,,UCLA Software Library for AIX}. |
df002c7d | 2231 | @end itemize |
f42974dc DW |
2232 | |
2233 | @item | |
8d5362b7 GP |
2234 | DOS---@uref{http://www.delorie.com/djgpp/,,DJGPP}. |
2235 | ||
2236 | @item | |
71c6b994 KH |
2237 | Renesas H8/300[HS]---@uref{http://h8300-hms.sourceforge.net/,,GNU |
2238 | Development Tools for the Renesas H8/300[HS] Series}. | |
f42974dc | 2239 | |
f404402c MW |
2240 | @item |
2241 | HP-UX: | |
2242 | @itemize | |
f42974dc | 2243 | @item |
1d7887ca | 2244 | @uref{http://hpux.cs.utah.edu/,,HP-UX Porting Center}; |
f42974dc | 2245 | |
f404402c MW |
2246 | @item |
2247 | @uref{ftp://sunsite.informatik.rwth-aachen.de/pub/packages/gcc_hpux/,,Binaries for HP-UX 11.00 at Aachen University of Technology}. | |
2248 | @end itemize | |
2249 | ||
3e35d143 SC |
2250 | @item |
2251 | Motorola 68HC11/68HC12---@uref{http://www.gnu-m68hc11.org,,GNU | |
2252 | Development Tools for the Motorola 68HC11/68HC12}. | |
2253 | ||
f42974dc | 2254 | @item |
38209993 | 2255 | @uref{http://www.sco.com/skunkware/devtools/index.html#gcc,,SCO |
8d5362b7 | 2256 | OpenServer/Unixware}. |
f42974dc | 2257 | |
8d5362b7 GP |
2258 | @item |
2259 | Solaris 2 (SPARC, Intel)---@uref{http://www.sunfreeware.com/,,Sunfreeware}. | |
f42974dc DW |
2260 | |
2261 | @item | |
8d5362b7 | 2262 | SGI---@uref{http://freeware.sgi.com/,,SGI Freeware}. |
f42974dc DW |
2263 | |
2264 | @item | |
05c425a9 | 2265 | Microsoft Windows: |
f42974dc DW |
2266 | @itemize |
2267 | @item | |
2268 | The @uref{http://sources.redhat.com/cygwin/,,Cygwin} project; | |
2269 | @item | |
cc92b8ab | 2270 | The @uref{http://www.mingw.org/,,MinGW} project. |
f42974dc DW |
2271 | @end itemize |
2272 | ||
2273 | @item | |
616de62f GP |
2274 | @uref{ftp://ftp.thewrittenword.com/packages/by-name/,,The |
2275 | Written Word} offers binaries for | |
2276 | AIX 4.3.2. | |
2277 | IRIX 6.5, | |
2278 | Digital UNIX 4.0D and 5.1, | |
2279 | GNU/Linux (i386), | |
2280 | HP-UX 10.20, 11.00, and 11.11, and | |
e4652e37 | 2281 | Solaris/SPARC 2.5.1, 2.6, 7, 8, and 9. |
6512c54a GP |
2282 | |
2283 | @item | |
2284 | @uref{http://www.openpkg.org/,,OpenPKG} offers binaries for quite a | |
2285 | number of platforms. | |
eae50c87 PB |
2286 | |
2287 | @item | |
2288 | The @uref{http://gcc.gnu.org/wiki/GFortranBinaries,,GFortran Wiki} has | |
92922512 | 2289 | links to GNU Fortran binaries for several platforms. |
f42974dc DW |
2290 | @end itemize |
2291 | ||
2292 | In addition to those specific offerings, you can get a binary | |
2293 | distribution CD-ROM from the | |
1d7887ca | 2294 | @uref{http://www.gnu.org/order/order.html,,Free Software Foundation}. |
f42974dc | 2295 | It contains binaries for a number of platforms, and |
767094dd | 2296 | includes not only GCC, but other stuff as well. The current CD does |
f42974dc | 2297 | not contain the latest version of GCC, but it should allow |
767094dd | 2298 | bootstrapping the compiler. An updated version of that disk is in the |
f42974dc DW |
2299 | works. |
2300 | ||
2301 | @html | |
b8db17af | 2302 | <hr /> |
f42974dc DW |
2303 | <p> |
2304 | @end html | |
2305 | @ifhtml | |
2306 | @uref{./index.html,,Return to the GCC Installation page} | |
2307 | @end ifhtml | |
2308 | @end ifset | |
2309 | ||
2310 | @c ***Specific**************************************************************** | |
6cfb3f16 | 2311 | @ifnothtml |
f42974dc | 2312 | @comment node-name, next, previous, up |
73e2155a | 2313 | @node Specific, Old, Binaries, Top |
6cfb3f16 | 2314 | @end ifnothtml |
f42974dc | 2315 | @ifset specifichtml |
f42974dc DW |
2316 | @ifnothtml |
2317 | @chapter Host/target specific installation notes for GCC | |
2318 | @end ifnothtml | |
2319 | @cindex Specific | |
2320 | @cindex Specific installation notes | |
2321 | @cindex Target specific installation | |
2322 | @cindex Host specific installation | |
2323 | @cindex Target specific installation notes | |
2324 | ||
2325 | Please read this document carefully @emph{before} installing the | |
2326 | GNU Compiler Collection on your machine. | |
2327 | ||
c9936427 DD |
2328 | Note that this list of install notes is @emph{not} a list of supported |
2329 | hosts or targets. Not all supported hosts and targets are listed | |
2330 | here, only the ones that require host-specific or target-specific | |
2331 | information are. | |
2332 | ||
ef88b07d | 2333 | @ifhtml |
f42974dc DW |
2334 | @itemize |
2335 | @item | |
5a4c9b10 | 2336 | @uref{#alpha-x-x,,alpha*-*-*} |
f42974dc | 2337 | @item |
5a4c9b10 | 2338 | @uref{#alpha-dec-osf,,alpha*-dec-osf*} |
f42974dc | 2339 | @item |
5a4c9b10 | 2340 | @uref{#alphaev5-cray-unicosmk,,alphaev5-cray-unicosmk*} |
71b96724 | 2341 | @item |
5a4c9b10 | 2342 | @uref{#arc-x-elf,,arc-*-elf} |
b8df899a | 2343 | @item |
5a4c9b10 GP |
2344 | @uref{#arm-x-elf,,arm-*-elf} |
2345 | @uref{#arm-x-coff,,arm-*-coff} | |
2346 | @uref{#arm-x-aout,,arm-*-aout} | |
b8df899a | 2347 | @item |
5a4c9b10 | 2348 | @uref{#xscale-x-x,,xscale-*-*} |
476c334e | 2349 | @item |
f42974dc DW |
2350 | @uref{#avr,,avr} |
2351 | @item | |
0d4a78eb BS |
2352 | @uref{#bfin,,Blackfin} |
2353 | @item | |
0132e321 MH |
2354 | @uref{#c4x,,c4x} |
2355 | @item | |
f42974dc DW |
2356 | @uref{#dos,,DOS} |
2357 | @item | |
5a4c9b10 | 2358 | @uref{#x-x-freebsd,,*-*-freebsd*} |
021c4bfd | 2359 | @item |
f42974dc DW |
2360 | @uref{#h8300-hms,,h8300-hms} |
2361 | @item | |
5a4c9b10 | 2362 | @uref{#hppa-hp-hpux,,hppa*-hp-hpux*} |
f42974dc | 2363 | @item |
5a4c9b10 | 2364 | @uref{#hppa-hp-hpux10,,hppa*-hp-hpux10} |
f42974dc | 2365 | @item |
5a4c9b10 | 2366 | @uref{#hppa-hp-hpux11,,hppa*-hp-hpux11} |
f42974dc | 2367 | @item |
5a4c9b10 | 2368 | @uref{#x-x-linux-gnu,,*-*-linux-gnu} |
f42974dc | 2369 | @item |
5a4c9b10 | 2370 | @uref{#ix86-x-linuxaout,,i?86-*-linux*aout} |
b8df899a | 2371 | @item |
5a4c9b10 | 2372 | @uref{#ix86-x-linux,,i?86-*-linux*} |
f42974dc | 2373 | @item |
d8fcd085 | 2374 | @uref{#ix86-x-sco32v5,,i?86-*-sco3.2v5*} |
f42974dc | 2375 | @item |
d8fcd085 | 2376 | @uref{#ix86-x-solaris210,,i?86-*-solaris2.10} |
8f47c084 | 2377 | @item |
5a4c9b10 | 2378 | @uref{#ix86-x-udk,,i?86-*-udk} |
f42974dc | 2379 | @item |
5a4c9b10 | 2380 | @uref{#ia64-x-linux,,ia64-*-linux} |
b8df899a | 2381 | @item |
5a4c9b10 | 2382 | @uref{#ia64-x-hpux,,ia64-*-hpux*} |
b499d9ab | 2383 | @item |
5a4c9b10 | 2384 | @uref{#x-ibm-aix,,*-ibm-aix*} |
959a73a4 | 2385 | @item |
5a4c9b10 | 2386 | @uref{#iq2000-x-elf,,iq2000-*-elf} |
e3223ea2 | 2387 | @item |
38b2d076 DD |
2388 | @uref{#m32c-x-elf,,m32c-*-elf} |
2389 | @item | |
5a4c9b10 | 2390 | @uref{#m32r-x-elf,,m32r-*-elf} |
b8df899a | 2391 | @item |
b8df899a JM |
2392 | @uref{#m6811-elf,,m6811-elf} |
2393 | @item | |
2394 | @uref{#m6812-elf,,m6812-elf} | |
2395 | @item | |
b8df899a JM |
2396 | @uref{#m68k-hp-hpux,,m68k-hp-hpux} |
2397 | @item | |
5a4c9b10 | 2398 | @uref{#mips-x-x,,mips-*-*} |
b8df899a | 2399 | @item |
b953cc4b | 2400 | @uref{#mips-sgi-irix5,,mips-sgi-irix5} |
f42974dc | 2401 | @item |
b953cc4b | 2402 | @uref{#mips-sgi-irix6,,mips-sgi-irix6} |
f42974dc | 2403 | @item |
5a4c9b10 | 2404 | @uref{#powerpc-x-x,,powerpc*-*-*, powerpc-*-sysv4} |
4f2b1139 | 2405 | @item |
5a4c9b10 | 2406 | @uref{#powerpc-x-darwin,,powerpc-*-darwin*} |
b8df899a | 2407 | @item |
5a4c9b10 | 2408 | @uref{#powerpc-x-elf,,powerpc-*-elf, powerpc-*-sysv4} |
f42974dc | 2409 | @item |
5a4c9b10 | 2410 | @uref{#powerpc-x-linux-gnu,,powerpc*-*-linux-gnu*} |
edf1b3f3 | 2411 | @item |
5a4c9b10 | 2412 | @uref{#powerpc-x-netbsd,,powerpc-*-netbsd*} |
b8df899a | 2413 | @item |
5a4c9b10 | 2414 | @uref{#powerpc-x-eabisim,,powerpc-*-eabisim} |
b8df899a | 2415 | @item |
5a4c9b10 | 2416 | @uref{#powerpc-x-eabi,,powerpc-*-eabi} |
b8df899a | 2417 | @item |
5a4c9b10 | 2418 | @uref{#powerpcle-x-elf,,powerpcle-*-elf, powerpcle-*-sysv4} |
b8df899a | 2419 | @item |
5a4c9b10 | 2420 | @uref{#powerpcle-x-eabisim,,powerpcle-*-eabisim} |
b8df899a | 2421 | @item |
5a4c9b10 | 2422 | @uref{#powerpcle-x-eabi,,powerpcle-*-eabi} |
b8df899a | 2423 | @item |
5a4c9b10 | 2424 | @uref{#s390-x-linux,,s390-*-linux*} |
91abf72d | 2425 | @item |
5a4c9b10 | 2426 | @uref{#s390x-x-linux,,s390x-*-linux*} |
91abf72d | 2427 | @item |
5a4c9b10 | 2428 | @uref{#s390x-ibm-tpf,,s390x-ibm-tpf*} |
8bf06993 | 2429 | @item |
5a4c9b10 | 2430 | @uref{#x-x-solaris2,,*-*-solaris2*} |
f42974dc | 2431 | @item |
5a4c9b10 | 2432 | @uref{#sparc-sun-solaris2,,sparc-sun-solaris2*} |
f42974dc | 2433 | @item |
d8fcd085 | 2434 | @uref{#sparc-sun-solaris27,,sparc-sun-solaris2.7} |
f42974dc | 2435 | @item |
5a4c9b10 | 2436 | @uref{#sparc-x-linux,,sparc-*-linux*} |
c6fa9728 | 2437 | @item |
5a4c9b10 | 2438 | @uref{#sparc64-x-solaris2,,sparc64-*-solaris2*} |
f42974dc | 2439 | @item |
5a4c9b10 | 2440 | @uref{#sparcv9-x-solaris2,,sparcv9-*-solaris2*} |
e403b4bc | 2441 | @item |
5a4c9b10 | 2442 | @uref{#x-x-sysv,,*-*-sysv*} |
b8df899a JM |
2443 | @item |
2444 | @uref{#vax-dec-ultrix,,vax-dec-ultrix} | |
2445 | @item | |
5a4c9b10 | 2446 | @uref{#x-x-vxworks,,*-*-vxworks*} |
4977bab6 | 2447 | @item |
d8fcd085 | 2448 | @uref{#x86-64-x-x,,x86_64-*-*, amd64-*-*} |
7e081a0c | 2449 | @item |
5a4c9b10 | 2450 | @uref{#xtensa-x-elf,,xtensa-*-elf} |
fd29f6ea | 2451 | @item |
5a4c9b10 | 2452 | @uref{#xtensa-x-linux,,xtensa-*-linux*} |
fd29f6ea | 2453 | @item |
f42974dc DW |
2454 | @uref{#windows,,Microsoft Windows} |
2455 | @item | |
2456 | @uref{#os2,,OS/2} | |
2457 | @item | |
2458 | @uref{#older,,Older systems} | |
2459 | @end itemize | |
2460 | ||
2461 | @itemize | |
2462 | @item | |
d8fcd085 | 2463 | @uref{#elf,,all ELF targets} (SVR4, Solaris 2, etc.) |
f42974dc | 2464 | @end itemize |
ef88b07d | 2465 | @end ifhtml |
f42974dc DW |
2466 | |
2467 | ||
2468 | @html | |
2469 | <!-- -------- host/target specific issues start here ---------------- --> | |
b8db17af | 2470 | <hr /> |
f42974dc | 2471 | @end html |
5a4c9b10 | 2472 | @heading @anchor{alpha-x-x}alpha*-*-* |
333e14b0 LR |
2473 | |
2474 | This section contains general configuration information for all | |
2475 | alpha-based platforms using ELF (in particular, ignore this section for | |
161d7b59 | 2476 | DEC OSF/1, Digital UNIX and Tru64 UNIX)@. In addition to reading this |
f2541106 | 2477 | section, please read all other sections that match your target. |
333e14b0 | 2478 | |
021c4bfd RO |
2479 | We require binutils 2.11.2 or newer. |
2480 | Previous binutils releases had a number of problems with DWARF 2 | |
333e14b0 LR |
2481 | debugging information, not the least of which is incorrect linking of |
2482 | shared libraries. | |
2483 | ||
b8df899a | 2484 | @html |
b8db17af | 2485 | <hr /> |
b8df899a | 2486 | @end html |
5a4c9b10 | 2487 | @heading @anchor{alpha-dec-osf}alpha*-dec-osf* |
b8df899a | 2488 | Systems using processors that implement the DEC Alpha architecture and |
f2541106 RO |
2489 | are running the DEC/Compaq Unix (DEC OSF/1, Digital UNIX, or Compaq |
2490 | Tru64 UNIX) operating system, for example the DEC Alpha AXP systems. | |
2491 | ||
c7bdf0a6 ZW |
2492 | As of GCC 3.2, versions before @code{alpha*-dec-osf4} are no longer |
2493 | supported. (These are the versions which identify themselves as DEC | |
2494 | OSF/1.) | |
9340544b | 2495 | |
6e92b3a1 RB |
2496 | In Digital Unix V4.0, virtual memory exhausted bootstrap failures |
2497 | may be fixed by configuring with @option{--with-gc=simple}, | |
2498 | reconfiguring Kernel Virtual Memory and Swap parameters | |
2499 | per the @command{/usr/sbin/sys_check} Tuning Suggestions, | |
2500 | or applying the patch in | |
2501 | @uref{http://gcc.gnu.org/ml/gcc/2002-08/msg00822.html}. | |
2502 | ||
f2541106 RO |
2503 | In Tru64 UNIX V5.1, Compaq introduced a new assembler that does not |
2504 | currently (2001-06-13) work with @command{mips-tfile}. As a workaround, | |
2505 | we need to use the old assembler, invoked via the barely documented | |
2506 | @option{-oldas} option. To bootstrap GCC, you either need to use the | |
2507 | Compaq C Compiler: | |
2508 | ||
3ab51846 | 2509 | @smallexample |
eea81d3e | 2510 | % CC=cc @var{srcdir}/configure [@var{options}] [@var{target}] |
3ab51846 | 2511 | @end smallexample |
f2541106 RO |
2512 | |
2513 | or you can use a copy of GCC 2.95.3 or higher built on Tru64 UNIX V4.0: | |
2514 | ||
3ab51846 | 2515 | @smallexample |
eea81d3e | 2516 | % CC=gcc -Wa,-oldas @var{srcdir}/configure [@var{options}] [@var{target}] |
3ab51846 | 2517 | @end smallexample |
b8df899a | 2518 | |
b953cc4b RO |
2519 | As of GNU binutils 2.11.2, neither GNU @command{as} nor GNU @command{ld} |
2520 | are supported on Tru64 UNIX, so you must not configure GCC with | |
2521 | @option{--with-gnu-as} or @option{--with-gnu-ld}. | |
2522 | ||
f0523f02 | 2523 | GCC writes a @samp{.verstamp} directive to the assembler output file |
b8df899a JM |
2524 | unless it is built as a cross-compiler. It gets the version to use from |
2525 | the system header file @file{/usr/include/stamp.h}. If you install a | |
2526 | new version of DEC Unix, you should rebuild GCC to pick up the new version | |
2527 | stamp. | |
2528 | ||
2529 | Note that since the Alpha is a 64-bit architecture, cross-compilers from | |
2530 | 32-bit machines will not generate code as efficient as that generated | |
2531 | when the compiler is running on a 64-bit machine because many | |
2532 | optimizations that depend on being able to represent a word on the | |
2533 | target in an integral value on the host cannot be performed. Building | |
2534 | cross-compilers on the Alpha for 32-bit machines has only been tested in | |
2535 | a few cases and may not work properly. | |
2536 | ||
7ba4ca63 | 2537 | @samp{make compare} may fail on old versions of DEC Unix unless you add |
6cfb3f16 | 2538 | @option{-save-temps} to @code{CFLAGS}. On these systems, the name of the |
b8df899a JM |
2539 | assembler input file is stored in the object file, and that makes |
2540 | comparison fail if it differs between the @code{stage1} and | |
6cfb3f16 | 2541 | @code{stage2} compilations. The option @option{-save-temps} forces a |
b8df899a | 2542 | fixed name to be used for the assembler input file, instead of a |
6cfb3f16 | 2543 | randomly chosen name in @file{/tmp}. Do not add @option{-save-temps} |
b8df899a | 2544 | unless the comparisons fail without that option. If you add |
6cfb3f16 | 2545 | @option{-save-temps}, you will have to manually delete the @samp{.i} and |
b8df899a JM |
2546 | @samp{.s} files after each series of compilations. |
2547 | ||
f0523f02 | 2548 | GCC now supports both the native (ECOFF) debugging format used by DBX |
161d7b59 | 2549 | and GDB and an encapsulated STABS format for use only with GDB@. See the |
6cfb3f16 | 2550 | discussion of the @option{--with-stabs} option of @file{configure} above |
b8df899a JM |
2551 | for more information on these formats and how to select them. |
2552 | ||
2553 | There is a bug in DEC's assembler that produces incorrect line numbers | |
2554 | for ECOFF format when the @samp{.align} directive is used. To work | |
f0523f02 | 2555 | around this problem, GCC will not emit such alignment directives |
b8df899a JM |
2556 | while writing ECOFF format debugging information even if optimization is |
2557 | being performed. Unfortunately, this has the very undesirable | |
6cfb3f16 JM |
2558 | side-effect that code addresses when @option{-O} is specified are |
2559 | different depending on whether or not @option{-g} is also specified. | |
b8df899a | 2560 | |
6cfb3f16 | 2561 | To avoid this behavior, specify @option{-gstabs+} and use GDB instead of |
161d7b59 | 2562 | DBX@. DEC is now aware of this problem with the assembler and hopes to |
b8df899a JM |
2563 | provide a fix shortly. |
2564 | ||
71b96724 | 2565 | @html |
b8db17af | 2566 | <hr /> |
71b96724 | 2567 | @end html |
5a4c9b10 | 2568 | @heading @anchor{alphaev5-cray-unicosmk}alphaev5-cray-unicosmk* |
71b96724 RL |
2569 | Cray T3E systems running Unicos/Mk. |
2570 | ||
2571 | This port is incomplete and has many known bugs. We hope to improve the | |
2572 | support for this target soon. Currently, only the C front end is supported, | |
2573 | and it is not possible to build parallel applications. Cray modules are not | |
2574 | supported; in particular, Craylibs are assumed to be in | |
2575 | @file{/opt/ctl/craylibs/craylibs}. | |
2576 | ||
cc11cc9b PB |
2577 | On this platform, you need to tell GCC where to find the assembler and |
2578 | the linker. The simplest way to do so is by providing @option{--with-as} | |
2579 | and @option{--with-ld} to @file{configure}, e.g.@: | |
71b96724 | 2580 | |
3ab51846 | 2581 | @smallexample |
8c085f6f JJ |
2582 | configure --with-as=/opt/ctl/bin/cam --with-ld=/opt/ctl/bin/cld \ |
2583 | --enable-languages=c | |
3ab51846 | 2584 | @end smallexample |
71b96724 | 2585 | |
cc11cc9b | 2586 | The comparison test at the end of the bootstrapping process fails on Unicos/Mk |
71b96724 RL |
2587 | because the assembler inserts timestamps into object files. You should |
2588 | be able to work around this by doing @samp{make all} after getting this | |
2589 | failure. | |
2590 | ||
b8df899a | 2591 | @html |
b8db17af | 2592 | <hr /> |
b8df899a | 2593 | @end html |
5a4c9b10 | 2594 | @heading @anchor{arc-x-elf}arc-*-elf |
b8df899a JM |
2595 | Argonaut ARC processor. |
2596 | This configuration is intended for embedded systems. | |
2597 | ||
2598 | @html | |
b8db17af | 2599 | <hr /> |
b8df899a | 2600 | @end html |
5a4c9b10 GP |
2601 | @heading @anchor{arm-x-elf}arm-*-elf |
2602 | @heading @anchor{xscale-x-x}xscale-*-* | |
34e8290f NC |
2603 | ARM-family processors. Subtargets that use the ELF object format |
2604 | require GNU binutils 2.13 or newer. Such subtargets include: | |
2605 | @code{arm-*-freebsd}, @code{arm-*-netbsdelf}, @code{arm-*-*linux}, | |
2606 | @code{arm-*-rtems} and @code{arm-*-kaos}. | |
2607 | ||
2608 | @html | |
2609 | <hr /> | |
2610 | @end html | |
5a4c9b10 | 2611 | @heading @anchor{arm-x-coff}arm-*-coff |
61aeb06f | 2612 | ARM-family processors. Note that there are two different varieties |
34e8290f NC |
2613 | of PE format subtarget supported: @code{arm-wince-pe} and |
2614 | @code{arm-pe} as well as a standard COFF target @code{arm-*-coff}. | |
2615 | ||
34e8290f NC |
2616 | @html |
2617 | <hr /> | |
2618 | @end html | |
5a4c9b10 | 2619 | @heading @anchor{arm-x-aout}arm-*-aout |
34e8290f NC |
2620 | ARM-family processors. These targets support the AOUT file format: |
2621 | @code{arm-*-aout}, @code{arm-*-netbsd}. | |
476c334e | 2622 | |
f42974dc | 2623 | @html |
b8db17af | 2624 | <hr /> |
f42974dc | 2625 | @end html |
ef88b07d | 2626 | @heading @anchor{avr}avr |
f42974dc | 2627 | |
b8df899a | 2628 | ATMEL AVR-family micro controllers. These are used in embedded |
ca52d046 GP |
2629 | applications. There are no standard Unix configurations. |
2630 | @ifnothtml | |
7f970b70 | 2631 | @xref{AVR Options,, AVR Options, gcc, Using the GNU Compiler |
ca52d046 GP |
2632 | Collection (GCC)}, |
2633 | @end ifnothtml | |
98999d8b | 2634 | @ifhtml |
ca52d046 | 2635 | See ``AVR Options'' in the main manual |
98999d8b | 2636 | @end ifhtml |
ca52d046 | 2637 | for the list of supported MCU types. |
b8df899a | 2638 | |
161d7b59 | 2639 | Use @samp{configure --target=avr --enable-languages="c"} to configure GCC@. |
f42974dc DW |
2640 | |
2641 | Further installation notes and other useful information about AVR tools | |
2642 | can also be obtained from: | |
2643 | ||
2644 | @itemize @bullet | |
2645 | @item | |
1d7887ca | 2646 | @uref{http://www.nongnu.org/avr/,,http://www.nongnu.org/avr/} |
de7999ba | 2647 | @item |
d1a86812 | 2648 | @uref{http://home.overta.ru/users/denisc/,,http://home.overta.ru/users/denisc/} |
f42974dc | 2649 | @item |
d1a86812 | 2650 | @uref{http://www.amelek.gda.pl/avr/,,http://www.amelek.gda.pl/avr/} |
f42974dc DW |
2651 | @end itemize |
2652 | ||
de7999ba | 2653 | We @emph{strongly} recommend using binutils 2.13 or newer. |
f42974dc DW |
2654 | |
2655 | The following error: | |
3ab51846 | 2656 | @smallexample |
f42974dc | 2657 | Error: register required |
3ab51846 | 2658 | @end smallexample |
f42974dc DW |
2659 | |
2660 | indicates that you should upgrade to a newer version of the binutils. | |
2661 | ||
0d4a78eb BS |
2662 | @html |
2663 | <hr /> | |
2664 | @end html | |
2665 | @heading @anchor{bfin}Blackfin | |
2666 | ||
2667 | The Blackfin processor, an Analog Devices DSP. | |
2668 | @ifnothtml | |
7f970b70 AM |
2669 | @xref{Blackfin Options,, Blackfin Options, gcc, Using the GNU Compiler |
2670 | Collection (GCC)}, | |
0d4a78eb BS |
2671 | @end ifnothtml |
2672 | @ifhtml | |
2673 | See ``Blackfin Options'' in the main manual | |
2674 | @end ifhtml | |
2675 | ||
2676 | More information, and a version of binutils with support for this processor, | |
2677 | is available at @uref{http://blackfin.uclinux.org} | |
2678 | ||
0132e321 | 2679 | @html |
b8db17af | 2680 | <hr /> |
0132e321 MH |
2681 | @end html |
2682 | @heading @anchor{c4x}c4x | |
2683 | ||
2684 | Texas Instruments TMS320C3x and TMS320C4x Floating Point Digital Signal | |
2685 | Processors. These are used in embedded applications. There are no | |
d8393f64 GP |
2686 | standard Unix configurations. |
2687 | @ifnothtml | |
7f970b70 AM |
2688 | @xref{TMS320C3x/C4x Options,, TMS320C3x/C4x Options, gcc, Using the |
2689 | GNU Compiler Collection (GCC)}, | |
d8393f64 | 2690 | @end ifnothtml |
98999d8b | 2691 | @ifhtml |
d8393f64 | 2692 | See ``TMS320C3x/C4x Options'' in the main manual |
98999d8b | 2693 | @end ifhtml |
d8393f64 | 2694 | for the list of supported MCU types. |
0132e321 MH |
2695 | |
2696 | GCC can be configured as a cross compiler for both the C3x and C4x | |
2697 | architectures on the same system. Use @samp{configure --target=c4x | |
2698 | --enable-languages="c,c++"} to configure. | |
2699 | ||
2700 | ||
2701 | Further installation notes and other useful information about C4x tools | |
2702 | can also be obtained from: | |
2703 | ||
2704 | @itemize @bullet | |
2705 | @item | |
d8393f64 | 2706 | @uref{http://www.elec.canterbury.ac.nz/c4x/,,http://www.elec.canterbury.ac.nz/c4x/} |
0132e321 MH |
2707 | @end itemize |
2708 | ||
0b85d816 | 2709 | @html |
b8db17af | 2710 | <hr /> |
0b85d816 HPN |
2711 | @end html |
2712 | @heading @anchor{cris}CRIS | |
2713 | ||
2714 | CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip | |
2715 | series. These are used in embedded applications. | |
2716 | ||
2717 | @ifnothtml | |
7f970b70 | 2718 | @xref{CRIS Options,, CRIS Options, gcc, Using the GNU Compiler |
0b85d816 HPN |
2719 | Collection (GCC)}, |
2720 | @end ifnothtml | |
2721 | @ifhtml | |
2722 | See ``CRIS Options'' in the main manual | |
2723 | @end ifhtml | |
2724 | for a list of CRIS-specific options. | |
2725 | ||
2726 | There are a few different CRIS targets: | |
2727 | @table @code | |
2728 | @item cris-axis-aout | |
2729 | Old target. Includes a multilib for the @samp{elinux} a.out-based | |
2730 | target. No multilibs for newer architecture variants. | |
2731 | @item cris-axis-elf | |
2732 | Mainly for monolithic embedded systems. Includes a multilib for the | |
2733 | @samp{v10} core used in @samp{ETRAX 100 LX}. | |
2734 | @item cris-axis-linux-gnu | |
2735 | A GNU/Linux port for the CRIS architecture, currently targeting | |
2736 | @samp{ETRAX 100 LX} by default. | |
2737 | @end table | |
2738 | ||
2739 | For @code{cris-axis-aout} and @code{cris-axis-elf} you need binutils 2.11 | |
2740 | or newer. For @code{cris-axis-linux-gnu} you need binutils 2.12 or newer. | |
2741 | ||
2742 | Pre-packaged tools can be obtained from | |
2743 | @uref{ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/}. More | |
2744 | information about this platform is available at | |
2745 | @uref{http://developer.axis.com/}. | |
2746 | ||
53054e77 PW |
2747 | @html |
2748 | <hr /> | |
2749 | @end html | |
2750 | @heading @anchor{crx}CRX | |
2751 | ||
2752 | The CRX CompactRISC architecture is a low-power 32-bit architecture with | |
2753 | fast context switching and architectural extensibility features. | |
2754 | ||
2755 | @ifnothtml | |
2756 | @xref{CRX Options,, CRX Options, gcc, Using and Porting the GNU Compiler | |
2757 | Collection (GCC)}, | |
2758 | @end ifnothtml | |
2759 | ||
2760 | @ifhtml | |
2761 | See ``CRX Options'' in the main manual for a list of CRX-specific options. | |
2762 | @end ifhtml | |
2763 | ||
2764 | Use @samp{configure --target=crx-elf --enable-languages=c,c++} to configure | |
2765 | GCC@ for building a CRX cross-compiler. The option @samp{--target=crx-elf} | |
2766 | is also used to build the @samp{newlib} C library for CRX. | |
2767 | ||
2768 | It is also possible to build libstdc++-v3 for the CRX architecture. This | |
a4d05547 | 2769 | needs to be done in a separate step with the following configure settings: |
53054e77 PW |
2770 | @samp{gcc/libstdc++-v3/configure --host=crx-elf --with-newlib |
2771 | --enable-sjlj-exceptions --enable-cxx-flags='-fexceptions -frtti'} | |
2772 | ||
f42974dc | 2773 | @html |
b8db17af | 2774 | <hr /> |
f42974dc | 2775 | @end html |
ef88b07d | 2776 | @heading @anchor{dos}DOS |
f42974dc | 2777 | |
962e6e00 | 2778 | Please have a look at the @uref{binaries.html,,binaries page}. |
f42974dc | 2779 | |
f0523f02 | 2780 | You cannot install GCC by itself on MSDOS; it will not compile under |
f85b8d1a JM |
2781 | any MSDOS compiler except itself. You need to get the complete |
2782 | compilation package DJGPP, which includes binaries as well as sources, | |
2783 | and includes all the necessary compilation tools and libraries. | |
2784 | ||
021c4bfd | 2785 | @html |
b8db17af | 2786 | <hr /> |
021c4bfd | 2787 | @end html |
5a4c9b10 | 2788 | @heading @anchor{x-x-freebsd}*-*-freebsd* |
021c4bfd | 2789 | |
f08dc6c1 | 2790 | The version of binutils installed in @file{/usr/bin} probably works with |
8a36672b | 2791 | this release of GCC@. However, on FreeBSD 4, bootstrapping against the |
f08dc6c1 LR |
2792 | latest FSF binutils is known to improve overall testsuite results; and, |
2793 | on FreeBSD/alpha, using binutils 2.14 or later is required to build libjava. | |
021c4bfd | 2794 | |
6a1dbbaf | 2795 | Support for FreeBSD 1 was discontinued in GCC 3.2. |
c7bdf0a6 | 2796 | |
f08dc6c1 LR |
2797 | Support for FreeBSD 2 will be discontinued after GCC 3.4. The |
2798 | following was true for GCC 3.1 but the current status is unknown. | |
c7bdf0a6 | 2799 | For FreeBSD 2 or any mutant a.out versions of FreeBSD 3: All |
021c4bfd RO |
2800 | configuration support and files as shipped with GCC 2.95 are still in |
2801 | place. FreeBSD 2.2.7 has been known to bootstrap completely; however, | |
2802 | it is unknown which version of binutils was used (it is assumed that it | |
2803 | was the system copy in @file{/usr/bin}) and C++ EH failures were noted. | |
2804 | ||
2805 | For FreeBSD using the ELF file format: DWARF 2 debugging is now the | |
2806 | default for all CPU architectures. It had been the default on | |
2807 | FreeBSD/alpha since its inception. You may use @option{-gstabs} instead | |
2808 | of @option{-g}, if you really want the old debugging format. There are | |
2809 | no known issues with mixing object files and libraries with different | |
2810 | debugging formats. Otherwise, this release of GCC should now match more | |
8a36672b | 2811 | of the configuration used in the stock FreeBSD configuration of GCC@. In |
021c4bfd RO |
2812 | particular, @option{--enable-threads} is now configured by default. |
2813 | However, as a general user, do not attempt to replace the system | |
2814 | compiler with this release. Known to bootstrap and check with good | |
f08dc6c1 | 2815 | results on FreeBSD 4.9-STABLE and 5-CURRENT@. In the past, known to |
e4e7d312 | 2816 | bootstrap and check with good results on FreeBSD 3.0, 3.4, 4.0, 4.2, |
f08dc6c1 | 2817 | 4.3, 4.4, 4.5, 4.8-STABLE@. |
46fc709d LR |
2818 | |
2819 | In principle, @option{--enable-threads} is now compatible with | |
2820 | @option{--enable-libgcj} on FreeBSD@. However, it has only been built | |
e4e7d312 | 2821 | and tested on @samp{i386-*-freebsd[45]} and @samp{alpha-*-freebsd[45]}. |
8c085f6f | 2822 | The static |
6b976d99 LR |
2823 | library may be incorrectly built (symbols are missing at link time). |
2824 | There is a rare timing-based startup hang (probably involves an | |
c0478a66 | 2825 | assumption about the thread library). Multi-threaded boehm-gc (required for |
46fc709d | 2826 | libjava) exposes severe threaded signal-handling bugs on FreeBSD before |
e4e7d312 | 2827 | 4.5-RELEASE@. Other CPU architectures |
46fc709d LR |
2828 | supported by FreeBSD will require additional configuration tuning in, at |
2829 | the very least, both boehm-gc and libffi. | |
021c4bfd | 2830 | |
bc3a44db LR |
2831 | Shared @file{libgcc_s.so} is now built and installed by default. |
2832 | ||
f42974dc | 2833 | @html |
b8db17af | 2834 | <hr /> |
f42974dc | 2835 | @end html |
ef88b07d | 2836 | @heading @anchor{h8300-hms}h8300-hms |
71c6b994 | 2837 | Renesas H8/300 series of processors. |
f42974dc | 2838 | |
962e6e00 | 2839 | Please have a look at the @uref{binaries.html,,binaries page}. |
f42974dc | 2840 | |
b8df899a JM |
2841 | The calling convention and structure layout has changed in release 2.6. |
2842 | All code must be recompiled. The calling convention now passes the | |
2843 | first three arguments in function calls in registers. Structures are no | |
2844 | longer a multiple of 2 bytes. | |
2845 | ||
f42974dc | 2846 | @html |
b8db17af | 2847 | <hr /> |
f42974dc | 2848 | @end html |
5a4c9b10 | 2849 | @heading @anchor{hppa-hp-hpux}hppa*-hp-hpux* |
6a1dbbaf | 2850 | Support for HP-UX version 9 and older was discontinued in GCC 3.4. |
f42974dc | 2851 | |
dbad5e72 SE |
2852 | We require using gas/binutils on all hppa platforms; |
2853 | you may encounter a variety of problems if you try to use the HP assembler. | |
f42974dc DW |
2854 | |
2855 | Specifically, @option{-g} does not work on HP-UX (since that system | |
d711cf67 | 2856 | uses a peculiar debugging format which GCC does not know about), unless |
8a36672b | 2857 | you use GAS and GDB@. It may be helpful to configure GCC with the |
38209993 | 2858 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}} and |
8a36672b | 2859 | @option{--with-as=@dots{}} options to ensure that GCC can find GAS@. |
f42974dc | 2860 | |
08b3d104 | 2861 | If you wish to use the pa-risc 2.0 architecture support with a 32-bit |
dbad5e72 | 2862 | runtime, you must use gas/binutils 2.11 or newer. |
f42974dc | 2863 | |
d5355cb2 JDA |
2864 | There are two default scheduling models for instructions. These are |
2865 | PROCESSOR_7100LC and PROCESSOR_8000. They are selected from the pa-risc | |
2866 | architecture specified for the target machine when configuring. | |
2867 | PROCESSOR_8000 is the default. PROCESSOR_7100LC is selected when | |
2868 | the target is a @samp{hppa1*} machine. | |
806bf413 JDA |
2869 | |
2870 | The PROCESSOR_8000 model is not well suited to older processors. Thus, | |
2871 | it is important to completely specify the machine architecture when | |
2872 | configuring if you want a model other than PROCESSOR_8000. The macro | |
2873 | TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different | |
2874 | default scheduling model is desired. | |
2875 | ||
25f710ba | 2876 | As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10 |
d711cf67 JDA |
2877 | through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later. |
2878 | This namespace change might cause problems when bootstrapping with | |
2879 | an earlier version of GCC or the HP compiler as essentially the same | |
2880 | namespace is required for an entire build. This problem can be avoided | |
2881 | in a number of ways. With HP cc, @env{UNIX_STD} can be set to @samp{95} | |
2882 | or @samp{98}. Another way is to add an appropriate set of predefines | |
2883 | to @env{CC}. The description for the @option{munix=} option contains | |
2884 | a list of the predefines used with each standard. | |
2885 | ||
dcf966bd JDA |
2886 | As of GCC 4.1, @env{DWARF2} exception handling is available on HP-UX. |
2887 | It is now the default. This exposed a bug in the handling of data | |
2888 | relocations in the GAS assembler. The handling of 64-bit data relocations | |
2889 | was seriously broken, affecting debugging and exception support on all | |
353f74e8 | 2890 | @samp{hppa64-*-*} targets. Under some circumstances, 32-bit data relocations |
dcf966bd JDA |
2891 | could also be handled incorrectly. This problem is fixed in GAS version |
2892 | 2.16.91 20051125. | |
2893 | ||
2894 | GCC versions prior to 4.1 incorrectly passed and returned complex | |
2895 | values. They are now passed in the same manner as aggregates. | |
2896 | ||
021c4bfd | 2897 | More specific information to @samp{hppa*-hp-hpux*} targets follows. |
f42974dc | 2898 | |
f42974dc | 2899 | @html |
b8db17af | 2900 | <hr /> |
f42974dc | 2901 | @end html |
5a4c9b10 | 2902 | @heading @anchor{hppa-hp-hpux10}hppa*-hp-hpux10 |
f42974dc | 2903 | |
f9047ed3 | 2904 | For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch |
161d7b59 | 2905 | @code{PHCO_19798} from HP@. HP has two sites which provide patches free of |
f42974dc DW |
2906 | charge: |
2907 | ||
2908 | @itemize @bullet | |
2909 | @item | |
2910 | @html | |
f401d0f5 | 2911 | <a href="http://us.itrc.hp.com/service/home/home.do">US, Canada, Asia-Pacific, and |
f42974dc DW |
2912 | Latin-America</a> |
2913 | @end html | |
2914 | @ifnothtml | |
f401d0f5 JDA |
2915 | @uref{http://us.itrc.hp.com/service/home/home.do,,} US, Canada, Asia-Pacific, |
2916 | and Latin-America. | |
f42974dc DW |
2917 | @end ifnothtml |
2918 | @item | |
f401d0f5 | 2919 | @uref{http://europe.itrc.hp.com/service/home/home.do,,} Europe. |
f42974dc DW |
2920 | @end itemize |
2921 | ||
2aea0b53 ZW |
2922 | The HP assembler on these systems has some problems. Most notably the |
2923 | assembler inserts timestamps into each object file it creates, causing | |
cc11cc9b PB |
2924 | the 3-stage comparison test to fail during a bootstrap. |
2925 | You should be able to continue by saying @samp{make all-host all-target} | |
2926 | after getting the failure from @samp{make}. | |
f42974dc | 2927 | |
25f710ba | 2928 | GCC 4.0 requires CVS binutils as of April 28, 2004 or later. Earlier |
9a55eab3 JDA |
2929 | versions require binutils 2.8 or later. |
2930 | ||
25f710ba | 2931 | The C++ ABI has changed incompatibly in GCC 4.0. COMDAT subspaces are |
9a55eab3 JDA |
2932 | used for one-only code and data. This resolves many of the previous |
2933 | problems in using C++ on this target. However, the ABI is not compatible | |
2934 | with the one implemented under HP-UX 11 using secondary definitions. | |
f42974dc DW |
2935 | |
2936 | @html | |
b8db17af | 2937 | <hr /> |
f42974dc | 2938 | @end html |
5a4c9b10 | 2939 | @heading @anchor{hppa-hp-hpux11}hppa*-hp-hpux11 |
f42974dc | 2940 | |
c5124497 JDA |
2941 | GCC 3.0 and up support HP-UX 11. GCC 2.95.x is not supported and cannot |
2942 | be used to compile GCC 3.0 and up. | |
f269f54f | 2943 | |
c5124497 | 2944 | Refer to @uref{binaries.html,,binaries} for information about obtaining |
8a36672b JM |
2945 | precompiled GCC binaries for HP-UX@. Precompiled binaries must be obtained |
2946 | to build the Ada language as it can't be bootstrapped using C@. Ada is | |
c5124497 JDA |
2947 | only available for the 32-bit PA-RISC runtime. The libffi and libjava |
2948 | haven't been ported to HP-UX and don't build. | |
f401d0f5 | 2949 | |
02809848 PB |
2950 | Starting with GCC 3.4 an ISO C compiler is required to bootstrap. The |
2951 | bundled compiler supports only traditional C; you will need either HP's | |
2952 | unbundled compiler, or a binary distribution of GCC@. | |
2953 | ||
c5124497 JDA |
2954 | It is possible to build GCC 3.3 starting with the bundled HP compiler, |
2955 | but the process requires several steps. GCC 3.3 can then be used to | |
2956 | build later versions. The fastjar program contains ISO C code and | |
2957 | can't be built with the HP bundled compiler. This problem can be | |
2958 | avoided by not building the Java language. For example, use the | |
2959 | @option{--enable-languages="c,c++,f77,objc"} option in your configure | |
2960 | command. | |
08b3d104 | 2961 | |
c5124497 JDA |
2962 | There are several possible approaches to building the distribution. |
2963 | Binutils can be built first using the HP tools. Then, the GCC | |
2964 | distribution can be built. The second approach is to build GCC | |
8a36672b | 2965 | first using the HP tools, then build binutils, then rebuild GCC@. |
c5124497 JDA |
2966 | There have been problems with various binary distributions, so it |
2967 | is best not to start from a binary distribution. | |
2968 | ||
2969 | On 64-bit capable systems, there are two distinct targets. Different | |
2970 | installation prefixes must be used if both are to be installed on | |
2971 | the same system. The @samp{hppa[1-2]*-hp-hpux11*} target generates code | |
2972 | for the 32-bit PA-RISC runtime architecture and uses the HP linker. | |
2973 | The @samp{hppa64-hp-hpux11*} target generates 64-bit code for the | |
2974 | PA-RISC 2.0 architecture. The HP and GNU linkers are both supported | |
2975 | for this target. | |
2976 | ||
2977 | The script config.guess now selects the target type based on the compiler | |
2978 | detected during configuration. You must define @env{PATH} or @env{CC} so | |
2979 | that configure finds an appropriate compiler for the initial bootstrap. | |
2980 | When @env{CC} is used, the definition should contain the options that are | |
2981 | needed whenever @env{CC} is used. | |
2982 | ||
2983 | Specifically, options that determine the runtime architecture must be | |
2984 | in @env{CC} to correctly select the target for the build. It is also | |
f0eb93a8 | 2985 | convenient to place many other compiler options in @env{CC}. For example, |
c5124497 JDA |
2986 | @env{CC="cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE"} |
2987 | can be used to bootstrap the GCC 3.3 branch with the HP compiler in | |
2988 | 64-bit K&R/bundled mode. The @option{+DA2.0W} option will result in | |
2989 | the automatic selection of the @samp{hppa64-hp-hpux11*} target. The | |
2990 | macro definition table of cpp needs to be increased for a successful | |
2991 | build with the HP compiler. _CLASSIC_TYPES and _HPUX_SOURCE need to | |
2992 | be defined when building with the bundled compiler, or when using the | |
2993 | @option{-Ac} option. These defines aren't necessary with @option{-Ae}. | |
8c085f6f | 2994 | |
c5124497 JDA |
2995 | It is best to explicitly configure the @samp{hppa64-hp-hpux11*} target |
2996 | with the @option{--with-ld=@dots{}} option. This overrides the standard | |
2997 | search for ld. The two linkers supported on this target require different | |
2998 | commands. The default linker is determined during configuration. As a | |
2999 | result, it's not possible to switch linkers in the middle of a GCC build. | |
3000 | This has been been reported to sometimes occur in unified builds of | |
8a36672b | 3001 | binutils and GCC@. |
c5124497 | 3002 | |
9a55eab3 | 3003 | GCC 3.0 through 3.2 require binutils 2.11 or above. GCC 3.3 through |
25f710ba | 3004 | GCC 4.0 require binutils 2.14 or later. |
c5124497 JDA |
3005 | |
3006 | Although the HP assembler can be used for an initial build, it shouldn't | |
3007 | be used with any languages other than C and perhaps Fortran due to its | |
3008 | many limitations. For example, it does not support weak symbols or alias | |
3009 | definitions. As a result, explicit template instantiations are required | |
3010 | when using C++. This makes it difficult if not impossible to build many | |
3011 | C++ applications. You can't generate debugging information when using | |
cc11cc9b | 3012 | the HP assembler. Finally, bootstrapping fails in the final |
c5124497 JDA |
3013 | comparison of object modules due to the time stamps that it inserts into |
3014 | the modules. The bootstrap can be continued from this point with | |
cc11cc9b | 3015 | @samp{make all-host all-target}. |
c5124497 JDA |
3016 | |
3017 | A recent linker patch must be installed for the correct operation of | |
3018 | GCC 3.3 and later. @code{PHSS_26559} and @code{PHSS_24304} are the | |
3019 | oldest linker patches that are known to work. They are for HP-UX | |
3020 | 11.00 and 11.11, respectively. @code{PHSS_24303}, the companion to | |
3021 | @code{PHSS_24304}, might be usable but it hasn't been tested. These | |
3022 | patches have been superseded. Consult the HP patch database to obtain | |
3023 | the currently recommended linker patch for your system. | |
3024 | ||
3025 | The patches are necessary for the support of weak symbols on the | |
3026 | 32-bit port, and for the running of initializers and finalizers. Weak | |
3027 | symbols are implemented using SOM secondary definition symbols. Prior | |
3028 | to HP-UX 11, there are bugs in the linker support for secondary symbols. | |
3029 | The patches correct a problem of linker core dumps creating shared | |
3030 | libraries containing secondary symbols, as well as various other | |
3031 | linking issues involving secondary symbols. | |
3032 | ||
3033 | GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to | |
3034 | run initializers and finalizers on the 64-bit port. The 32-bit port | |
3035 | uses the linker @option{+init} and @option{+fini} options for the same | |
3036 | purpose. The patches correct various problems with the +init/+fini | |
3037 | options, including program core dumps. Binutils 2.14 corrects a | |
3038 | problem on the 64-bit port resulting from HP's non-standard use of | |
3039 | the .init and .fini sections for array initializers and finalizers. | |
f401d0f5 JDA |
3040 | |
3041 | There are a number of issues to consider in selecting which linker to | |
c5124497 | 3042 | use with the 64-bit port. The GNU 64-bit linker can only create dynamic |
f401d0f5 JDA |
3043 | binaries. The @option{-static} option causes linking with archive |
3044 | libraries but doesn't produce a truly static binary. Dynamic binaries | |
3045 | still require final binding by the dynamic loader to resolve a set of | |
3046 | dynamic-loader-defined symbols. The default behavior of the HP linker | |
3047 | is the same as the GNU linker. However, it can generate true 64-bit | |
3048 | static binaries using the @option{+compat} option. | |
3049 | ||
3050 | The HP 64-bit linker doesn't support linkonce semantics. As a | |
3051 | result, C++ programs have many more sections than they should. | |
3052 | ||
3053 | The GNU 64-bit linker has some issues with shared library support | |
3054 | and exceptions. As a result, we only support libgcc in archive | |
3055 | format. For similar reasons, dwarf2 unwind and exception support | |
3056 | are disabled. The GNU linker also has problems creating binaries | |
3057 | with @option{-static}. It doesn't provide stubs for internal | |
3058 | calls to global functions in shared libraries, so these calls | |
3059 | can't be overloaded. | |
581d9404 | 3060 | |
c5124497 JDA |
3061 | Thread support is not implemented in GCC 3.0 through 3.2, so the |
3062 | @option{--enable-threads} configure option does not work. In 3.3 | |
3063 | and later, POSIX threads are supported. The optional DCE thread | |
3064 | library is not supported. | |
581d9404 JDA |
3065 | |
3066 | This port still is undergoing significant development. | |
08b3d104 | 3067 | |
f42974dc | 3068 | @html |
b8db17af | 3069 | <hr /> |
f42974dc | 3070 | @end html |
5a4c9b10 | 3071 | @heading @anchor{x-x-linux-gnu}*-*-linux-gnu |
f42974dc | 3072 | |
9e80ada7 PE |
3073 | Versions of libstdc++-v3 starting with 3.2.1 require bugfixes present |
3074 | in glibc 2.2.5 and later. More information is available in the | |
3075 | libstdc++-v3 documentation. | |
3076 | ||
b8df899a | 3077 | @html |
b8db17af | 3078 | <hr /> |
b8df899a | 3079 | @end html |
5a4c9b10 | 3080 | @heading @anchor{ix86-x-linuxaout}i?86-*-linux*aout |
b8df899a | 3081 | Use this configuration to generate @file{a.out} binaries on Linux-based |
41ca24de | 3082 | GNU systems. This configuration is being superseded. |
b8df899a | 3083 | |
f42974dc | 3084 | @html |
b8db17af | 3085 | <hr /> |
f42974dc | 3086 | @end html |
5a4c9b10 | 3087 | @heading @anchor{ix86-x-linux}i?86-*-linux* |
f42974dc | 3088 | |
1ea6f4c8 DH |
3089 | As of GCC 3.3, binutils 2.13.1 or later is required for this platform. |
3090 | See @uref{http://gcc.gnu.org/PR10877,,bug 10877} for more information. | |
f42974dc DW |
3091 | |
3092 | If you receive Signal 11 errors when building on GNU/Linux, then it is | |
3093 | possible you have a hardware problem. Further information on this can be | |
3094 | found on @uref{http://www.bitwizard.nl/sig11/,,www.bitwizard.nl}. | |
3095 | ||
3096 | @html | |
b8db17af | 3097 | <hr /> |
f42974dc | 3098 | @end html |
d8fcd085 | 3099 | @heading @anchor{ix86-x-sco32v5}i?86-*-sco3.2v5* |
b8df899a | 3100 | Use this for the SCO OpenServer Release 5 family of operating systems. |
f42974dc DW |
3101 | |
3102 | Unlike earlier versions of GCC, the ability to generate COFF with this | |
3103 | target is no longer provided. | |
3104 | ||
021c4bfd | 3105 | Earlier versions of GCC emitted DWARF 1 when generating ELF to allow |
f42974dc | 3106 | the system debugger to be used. That support was too burdensome to |
021c4bfd | 3107 | maintain. GCC now emits only DWARF 2 for this target. This means you |
f42974dc | 3108 | may use either the UDK debugger or GDB to debug programs built by this |
161d7b59 | 3109 | version of GCC@. |
f42974dc | 3110 | |
ac24fc99 KJ |
3111 | GCC is now only supported on releases 5.0.4 and later, and requires that |
3112 | you install Support Level Supplement OSS646B or later, and Support Level | |
3113 | Supplement OSS631C or later. If you are using release 5.0.7 of | |
3114 | OpenServer, you must have at least the first maintenance pack installed | |
3115 | (this includes the relevant portions of OSS646). OSS646, also known as | |
78466c0e | 3116 | the ``Execution Environment Update'', provides updated link editors and |
ac24fc99 KJ |
3117 | assemblers, as well as updated standard C and math libraries. The C |
3118 | startup modules are also updated to support the System V gABI draft, and | |
0b4be7de | 3119 | GCC relies on that behavior. OSS631 provides a collection of commonly |
ac24fc99 KJ |
3120 | used open source libraries, some of which GCC depends on (such as GNU |
3121 | gettext and zlib). SCO OpenServer Release 5.0.7 has all of this built | |
3122 | in by default, but OSS631C and later also apply to that release. Please | |
3123 | visit | |
3124 | @uref{ftp://ftp.sco.com/pub/openserver5,,ftp://ftp.sco.com/pub/openserver5} | |
3125 | for the latest versions of these (and other potentially useful) | |
3126 | supplements. | |
3127 | ||
3128 | Although there is support for using the native assembler, it is | |
3129 | recommended that you configure GCC to use the GNU assembler. You do | |
3130 | this by using the flags | |
3131 | @uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}}. You should | |
3132 | use a modern version of GNU binutils. Version 2.13.2.1 was used for all | |
3133 | testing. In general, only the @option{--with-gnu-as} option is tested. | |
3134 | A modern bintuils (as well as a plethora of other development related | |
3135 | GNU utilities) can be found in Support Level Supplement OSS658A, the | |
78466c0e JM |
3136 | ``GNU Development Tools'' package. See the SCO web and ftp sites for details. |
3137 | That package also contains the currently ``officially supported'' version of | |
daf2f129 | 3138 | GCC, version 2.95.3. It is useful for bootstrapping this version. |
f42974dc | 3139 | |
8f47c084 JM |
3140 | @html |
3141 | <hr /> | |
3142 | @end html | |
d8fcd085 | 3143 | @heading @anchor{ix86-x-solaris210}i?86-*-solaris2.10 |
8f47c084 JM |
3144 | Use this for Solaris 10 or later on x86 and x86-64 systems. This |
3145 | configuration is supported by GCC 4.0 and later versions only. | |
3146 | ||
3147 | It is recommended that you configure GCC to use the GNU assembler in | |
3148 | @file{/usr/sfw/bin/gas} but the Sun linker, using the options | |
3149 | @option{--with-gnu-as --with-as=/usr/sfw/bin/gas --without-gnu-ld | |
3150 | --with-ld=/usr/ccs/bin/ld}. | |
3151 | ||
f42974dc | 3152 | @html |
b8db17af | 3153 | <hr /> |
f42974dc | 3154 | @end html |
5a4c9b10 | 3155 | @heading @anchor{ix86-x-udk}i?86-*-udk |
f42974dc DW |
3156 | |
3157 | This target emulates the SCO Universal Development Kit and requires that | |
f9047ed3 JM |
3158 | package be installed. (If it is installed, you will have a |
3159 | @file{/udk/usr/ccs/bin/cc} file present.) It's very much like the | |
b953cc4b | 3160 | @samp{i?86-*-unixware7*} target |
f42974dc DW |
3161 | but is meant to be used when hosting on a system where UDK isn't the |
3162 | default compiler such as OpenServer 5 or Unixware 2. This target will | |
f9047ed3 | 3163 | generate binaries that will run on OpenServer, Unixware 2, or Unixware 7, |
161d7b59 | 3164 | with the same warnings and caveats as the SCO UDK@. |
f42974dc | 3165 | |
f42974dc DW |
3166 | This target is a little tricky to build because we have to distinguish |
3167 | it from the native tools (so it gets headers, startups, and libraries | |
f9047ed3 | 3168 | from the right place) while making the tools not think we're actually |
f42974dc DW |
3169 | building a cross compiler. The easiest way to do this is with a configure |
3170 | command like this: | |
3171 | ||
3ab51846 | 3172 | @smallexample |
8c085f6f JJ |
3173 | CC=/udk/usr/ccs/bin/cc @var{/your/path/to}/gcc/configure \ |
3174 | --host=i686-pc-udk --target=i686-pc-udk --program-prefix=udk- | |
3ab51846 | 3175 | @end smallexample |
f42974dc | 3176 | |
6cfb3f16 | 3177 | @emph{You should substitute @samp{i686} in the above command with the appropriate |
f42974dc DW |
3178 | processor for your host.} |
3179 | ||
cc11cc9b | 3180 | After the usual @samp{make} and |
021c4bfd | 3181 | @samp{make install}, you can then access the UDK-targeted GCC |
38209993 LG |
3182 | tools by adding @command{udk-} before the commonly known name. For |
3183 | example, to invoke the C compiler, you would use @command{udk-gcc}. | |
3184 | They will coexist peacefully with any native-target GCC tools you may | |
3185 | have installed. | |
f42974dc DW |
3186 | |
3187 | ||
b499d9ab | 3188 | @html |
b8db17af | 3189 | <hr /> |
b499d9ab | 3190 | @end html |
5a4c9b10 | 3191 | @heading @anchor{ia64-x-linux}ia64-*-linux |
b499d9ab JJ |
3192 | IA-64 processor (also known as IPF, or Itanium Processor Family) |
3193 | running GNU/Linux. | |
3194 | ||
443728bb L |
3195 | If you are using the installed system libunwind library with |
3196 | @option{--with-system-libunwind}, then you must use libunwind 0.98 or | |
3197 | later. | |
bcd11e5e | 3198 | |
b499d9ab JJ |
3199 | None of the following versions of GCC has an ABI that is compatible |
3200 | with any of the other versions in this list, with the exception that | |
3201 | Red Hat 2.96 and Trillian 000171 are compatible with each other: | |
41ca24de | 3202 | 3.1, 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717. |
b499d9ab | 3203 | This primarily affects C++ programs and programs that create shared libraries. |
41ca24de DH |
3204 | GCC 3.1 or later is recommended for compiling linux, the kernel. |
3205 | As of version 3.1 GCC is believed to be fully ABI compliant, and hence no | |
3206 | more major ABI changes are expected. | |
b499d9ab | 3207 | |
959a73a4 DH |
3208 | @html |
3209 | <hr /> | |
3210 | @end html | |
5a4c9b10 | 3211 | @heading @anchor{ia64-x-hpux}ia64-*-hpux* |
8a36672b JM |
3212 | Building GCC on this target requires the GNU Assembler. The bundled HP |
3213 | assembler will not work. To prevent GCC from using the wrong assembler, | |
959a73a4 DH |
3214 | the option @option{--with-gnu-as} may be necessary. |
3215 | ||
8a36672b | 3216 | The GCC libunwind library has not been ported to HPUX@. This means that for |
959a73a4 | 3217 | GCC versions 3.2.3 and earlier, @option{--enable-libunwind-exceptions} |
8a36672b | 3218 | is required to build GCC@. For GCC 3.3 and later, this is the default. |
443728bb L |
3219 | For gcc 3.4.3 and later, @option{--enable-libunwind-exceptions} is |
3220 | removed and the system libunwind library will always be used. | |
959a73a4 | 3221 | |
f42974dc | 3222 | @html |
b8db17af | 3223 | <hr /> |
f42974dc DW |
3224 | <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --> |
3225 | @end html | |
5a4c9b10 | 3226 | @heading @anchor{x-ibm-aix}*-ibm-aix* |
6a1dbbaf | 3227 | Support for AIX version 3 and older was discontinued in GCC 3.4. |
f42974dc | 3228 | |
7cc654b8 DE |
3229 | ``out of memory'' bootstrap failures may indicate a problem with |
3230 | process resource limits (ulimit). Hard limits are configured in the | |
71fc0c16 | 3231 | @file{/etc/security/limits} system configuration file. |
7cc654b8 | 3232 | |
e8d8a034 DE |
3233 | To speed up the configuration phases of bootstrapping and installing GCC, |
3234 | one may use GNU Bash instead of AIX @command{/bin/sh}, e.g., | |
3235 | ||
3236 | @smallexample | |
3237 | % CONFIG_SHELL=/opt/freeware/bin/bash | |
3238 | % export CONFIG_SHELL | |
3239 | @end smallexample | |
3240 | ||
cc11cc9b PB |
3241 | and then proceed as described in @uref{build.html,,the build |
3242 | instructions}, where we strongly recommend specifying an absolute path | |
e8d8a034 DE |
3243 | to invoke @var{srcdir}/configure. |
3244 | ||
d3a95f27 DE |
3245 | Because GCC on AIX is built as a 32-bit executable by default, |
3246 | (although it can generate 64-bit programs) the GMP and MPFR libraries | |
3247 | required by gfortran must be 32-bit libraries. Building GMP and MPFR | |
3248 | as static archive libraries works better than shared libraries. | |
3249 | ||
6cfb3f16 | 3250 | Errors involving @code{alloca} when building GCC generally are due |
021c4bfd | 3251 | to an incorrect definition of @code{CC} in the Makefile or mixing files |
161d7b59 | 3252 | compiled with the native C compiler and GCC@. During the stage1 phase of |
6cfb3f16 JM |
3253 | the build, the native AIX compiler @strong{must} be invoked as @command{cc} |
3254 | (not @command{xlc}). Once @command{configure} has been informed of | |
3255 | @command{xlc}, one needs to use @samp{make distclean} to remove the | |
38209993 | 3256 | configure cache files and ensure that @env{CC} environment variable |
f42974dc DW |
3257 | does not provide a definition that will confuse @command{configure}. |
3258 | If this error occurs during stage2 or later, then the problem most likely | |
3259 | is the version of Make (see above). | |
3260 | ||
f0483418 | 3261 | The native @command{as} and @command{ld} are recommended for bootstrapping |
8a36672b | 3262 | on AIX 4 and required for bootstrapping on AIX 5L@. The GNU Assembler |
f0483418 DE |
3263 | reports that it supports WEAK symbols on AIX 4, which causes GCC to try to |
3264 | utilize weak symbol functionality although it is not supported. The GNU | |
8a36672b | 3265 | Assembler and Linker do not support AIX 5L sufficiently to bootstrap GCC@. |
f0483418 | 3266 | The native AIX tools do interoperate with GCC@. |
df002c7d | 3267 | |
04d2be8e | 3268 | Building @file{libstdc++.a} requires a fix for an AIX Assembler bug |
bb674cef DE |
3269 | APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1). It also requires a |
3270 | fix for another AIX Assembler bug and a co-dependent AIX Archiver fix | |
06e7f299 | 3271 | referenced as APAR IY53606 (AIX 5.2) or a APAR IY54774 (AIX 5.1) |
2705baf5 | 3272 | |
bb674cef | 3273 | @samp{libstdc++} in GCC 3.4 increments the major version number of the |
fdf68669 | 3274 | shared object and GCC installation places the @file{libstdc++.a} |
bb674cef DE |
3275 | shared library in a common location which will overwrite the and GCC |
3276 | 3.3 version of the shared library. Applications either need to be | |
3277 | re-linked against the new shared library or the GCC 3.1 and GCC 3.3 | |
3278 | versions of the @samp{libstdc++} shared object needs to be available | |
3279 | to the AIX runtime loader. The GCC 3.1 @samp{libstdc++.so.4}, if | |
3280 | present, and GCC 3.3 @samp{libstdc++.so.5} shared objects can be | |
3281 | installed for runtime dynamic loading using the following steps to set | |
3282 | the @samp{F_LOADONLY} flag in the shared object for @emph{each} | |
fdf68669 DE |
3283 | multilib @file{libstdc++.a} installed: |
3284 | ||
bb674cef DE |
3285 | Extract the shared objects from the currently installed |
3286 | @file{libstdc++.a} archive: | |
3ab51846 | 3287 | @smallexample |
bb674cef | 3288 | % ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5 |
3ab51846 | 3289 | @end smallexample |
fdf68669 DE |
3290 | |
3291 | Enable the @samp{F_LOADONLY} flag so that the shared object will be | |
3292 | available for runtime dynamic loading, but not linking: | |
3ab51846 | 3293 | @smallexample |
bb674cef | 3294 | % strip -e libstdc++.so.4 libstdc++.so.5 |
3ab51846 | 3295 | @end smallexample |
fdf68669 | 3296 | |
bb674cef | 3297 | Archive the runtime-only shared object in the GCC 3.4 |
fdf68669 | 3298 | @file{libstdc++.a} archive: |
3ab51846 | 3299 | @smallexample |
bb674cef | 3300 | % ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5 |
3ab51846 | 3301 | @end smallexample |
fdf68669 | 3302 | |
df002c7d DE |
3303 | Linking executables and shared libraries may produce warnings of |
3304 | duplicate symbols. The assembly files generated by GCC for AIX always | |
3305 | have included multiple symbol definitions for certain global variable | |
3306 | and function declarations in the original program. The warnings should | |
3307 | not prevent the linker from producing a correct library or runnable | |
3308 | executable. | |
3309 | ||
6cfb3f16 | 3310 | AIX 4.3 utilizes a ``large format'' archive to support both 32-bit and |
df002c7d DE |
3311 | 64-bit object modules. The routines provided in AIX 4.3.0 and AIX 4.3.1 |
3312 | to parse archive libraries did not handle the new format correctly. | |
3313 | These routines are used by GCC and result in error messages during | |
6cfb3f16 | 3314 | linking such as ``not a COFF file''. The version of the routines shipped |
df002c7d DE |
3315 | with AIX 4.3.1 should work for a 32-bit environment. The @option{-g} |
3316 | option of the archive command may be used to create archives of 32-bit | |
6cfb3f16 | 3317 | objects using the original ``small format''. A correct version of the |
d5d8d540 | 3318 | routines is shipped with AIX 4.3.2 and above. |
df002c7d | 3319 | |
f42974dc DW |
3320 | Some versions of the AIX binder (linker) can fail with a relocation |
3321 | overflow severe error when the @option{-bbigtoc} option is used to link | |
161d7b59 | 3322 | GCC-produced object files into an executable that overflows the TOC@. A fix |
f42974dc DW |
3323 | for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is |
3324 | available from IBM Customer Support and from its | |
d5d8d540 | 3325 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
f42974dc DW |
3326 | website as PTF U455193. |
3327 | ||
df002c7d | 3328 | The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core |
161d7b59 | 3329 | with a segmentation fault when invoked by any version of GCC@. A fix for |
df002c7d | 3330 | APAR IX87327 is available from IBM Customer Support and from its |
d5d8d540 | 3331 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
df002c7d | 3332 | website as PTF U461879. This fix is incorporated in AIX 4.3.3 and above. |
f42974dc DW |
3333 | |
3334 | The initial assembler shipped with AIX 4.3.0 generates incorrect object | |
3335 | files. A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS | |
3336 | TO ASSEMBLE/BIND) is available from IBM Customer Support and from its | |
d5d8d540 | 3337 | @uref{http://techsupport.services.ibm.com/,,techsupport.services.ibm.com} |
f42974dc DW |
3338 | website as PTF U453956. This fix is incorporated in AIX 4.3.1 and above. |
3339 | ||
161d7b59 | 3340 | AIX provides National Language Support (NLS)@. Compilers and assemblers |
df002c7d | 3341 | use NLS to support locale-specific representations of various data |
6cfb3f16 | 3342 | formats including floating-point numbers (e.g., @samp{.} vs @samp{,} for |
df002c7d DE |
3343 | separating decimal fractions). There have been problems reported where |
3344 | GCC does not produce the same floating-point formats that the assembler | |
c771326b | 3345 | expects. If one encounters this problem, set the @env{LANG} |
6cfb3f16 | 3346 | environment variable to @samp{C} or @samp{En_US}. |
f42974dc | 3347 | |
5791e6da DE |
3348 | By default, GCC for AIX 4.1 and above produces code that can be used on |
3349 | both Power or PowerPC processors. | |
3350 | ||
d5d8d540 DE |
3351 | A default can be specified with the @option{-mcpu=@var{cpu_type}} |
3352 | switch and using the configure option @option{--with-cpu-@var{cpu_type}}. | |
f42974dc | 3353 | |
6b3d1e47 SC |
3354 | @html |
3355 | <hr /> | |
3356 | @end html | |
5a4c9b10 | 3357 | @heading @anchor{iq2000-x-elf}iq2000-*-elf |
6b3d1e47 SC |
3358 | Vitesse IQ2000 processors. These are used in embedded |
3359 | applications. There are no standard Unix configurations. | |
3360 | ||
38b2d076 DD |
3361 | @html |
3362 | <hr /> | |
3363 | @end html | |
3364 | @heading @anchor{m32c-x-elf}m32c-*-elf | |
3365 | Renesas M32C processor. | |
3366 | This configuration is intended for embedded systems. | |
3367 | ||
b8df899a | 3368 | @html |
b8db17af | 3369 | <hr /> |
b8df899a | 3370 | @end html |
5a4c9b10 | 3371 | @heading @anchor{m32r-x-elf}m32r-*-elf |
25f47a4c | 3372 | Renesas M32R processor. |
b8df899a JM |
3373 | This configuration is intended for embedded systems. |
3374 | ||
b8df899a | 3375 | @html |
b8db17af | 3376 | <hr /> |
b8df899a JM |
3377 | @end html |
3378 | @heading @anchor{m6811-elf}m6811-elf | |
3379 | Motorola 68HC11 family micro controllers. These are used in embedded | |
3380 | applications. There are no standard Unix configurations. | |
3381 | ||
3382 | @html | |
b8db17af | 3383 | <hr /> |
b8df899a JM |
3384 | @end html |
3385 | @heading @anchor{m6812-elf}m6812-elf | |
3386 | Motorola 68HC12 family micro controllers. These are used in embedded | |
3387 | applications. There are no standard Unix configurations. | |
3388 | ||
b8df899a | 3389 | @html |
b8db17af | 3390 | <hr /> |
b8df899a | 3391 | @end html |
59fbf3cb NS |
3392 | @heading @anchor{m68k-*-*}m68k-*-* |
3393 | You can specify a default target using @option{--with-cpu=@var{target}}. | |
3394 | The recognized values for @var{target} are: @samp{m68000}, @samp{m68010}, | |
3395 | @samp{m68020}, @samp{m68030}, @samp{m68040}, @samp{m68060}, @samp{m68020-40} | |
3396 | and @samp{m68020-60}. | |
3397 | ||
b8df899a | 3398 | @heading @anchor{m68k-hp-hpux}m68k-hp-hpux |
161d7b59 JM |
3399 | HP 9000 series 300 or 400 running HP-UX@. HP-UX version 8.0 has a bug in |
3400 | the assembler that prevents compilation of GCC@. This | |
b8df899a JM |
3401 | bug manifests itself during the first stage of compilation, while |
3402 | building @file{libgcc2.a}: | |
3403 | ||
3404 | @smallexample | |
3405 | _floatdisf | |
3406 | cc1: warning: `-g' option not supported on this version of GCC | |
3407 | cc1: warning: `-g1' option not supported on this version of GCC | |
3408 | ./xgcc: Internal compiler error: program as got fatal signal 11 | |
3409 | @end smallexample | |
3410 | ||
3411 | A patched version of the assembler is available as the file | |
3412 | @uref{ftp://altdorf.ai.mit.edu/archive/cph/hpux-8.0-assembler}. If you | |
3413 | have HP software support, the patch can also be obtained directly from | |
3414 | HP, as described in the following note: | |
3415 | ||
3416 | @quotation | |
3417 | This is the patched assembler, to patch SR#1653-010439, where the | |
3418 | assembler aborts on floating point constants. | |
3419 | ||
3420 | The bug is not really in the assembler, but in the shared library | |
3421 | version of the function ``cvtnum(3c)''. The bug on ``cvtnum(3c)'' is | |
3422 | SR#4701-078451. Anyway, the attached assembler uses the archive | |
3423 | library version of ``cvtnum(3c)'' and thus does not exhibit the bug. | |
3424 | @end quotation | |
3425 | ||
3426 | This patch is also known as PHCO_4484. | |
3427 | ||
41ca24de | 3428 | In addition gdb does not understand that native HP-UX format, so |
b8df899a JM |
3429 | you must use gas if you wish to use gdb. |
3430 | ||
3431 | On HP-UX version 8.05, but not on 8.07 or more recent versions, the | |
7ba4ca63 | 3432 | @command{fixproto} shell script triggers a bug in the system shell. If you |
b8df899a | 3433 | encounter this problem, upgrade your operating system or use BASH (the |
7ba4ca63 | 3434 | GNU shell) to run @command{fixproto}. This bug will cause the fixproto |
b8df899a JM |
3435 | program to report an error of the form: |
3436 | ||
3ab51846 | 3437 | @smallexample |
b8df899a | 3438 | ./fixproto: sh internal 1K buffer overflow |
3ab51846 | 3439 | @end smallexample |
b8df899a JM |
3440 | |
3441 | To fix this, you can also change the first line of the fixproto script | |
3442 | to look like: | |
3443 | ||
3ab51846 | 3444 | @smallexample |
b8df899a | 3445 | #!/bin/ksh |
3ab51846 | 3446 | @end smallexample |
b8df899a | 3447 | |
b8df899a | 3448 | @html |
b8db17af | 3449 | <hr /> |
b8df899a | 3450 | @end html |
5a4c9b10 | 3451 | @heading @anchor{mips-x-x}mips-*-* |
b8df899a JM |
3452 | If on a MIPS system you get an error message saying ``does not have gp |
3453 | sections for all it's [sic] sectons [sic]'', don't worry about it. This | |
3454 | happens whenever you use GAS with the MIPS linker, but there is not | |
3455 | really anything wrong, and it is okay to use the output file. You can | |
3456 | stop such warnings by installing the GNU linker. | |
3457 | ||
3458 | It would be nice to extend GAS to produce the gp tables, but they are | |
3459 | optional, and there should not be a warning about their absence. | |
3460 | ||
26979a17 PE |
3461 | The libstdc++ atomic locking routines for MIPS targets requires MIPS II |
3462 | and later. A patch went in just after the GCC 3.3 release to | |
3463 | make @samp{mips*-*-*} use the generic implementation instead. You can also | |
3464 | configure for @samp{mipsel-elf} as a workaround. The | |
3465 | @samp{mips*-*-linux*} target continues to use the MIPS II routines. More | |
3466 | work on this is expected in future releases. | |
3467 | ||
9f0df97a DD |
3468 | MIPS systems check for division by zero (unless |
3469 | @option{-mno-check-zero-division} is passed to the compiler) by | |
3470 | generating either a conditional trap or a break instruction. Using | |
3471 | trap results in smaller code, but is only supported on MIPS II and | |
3472 | later. Also, some versions of the Linux kernel have a bug that | |
8a36672b | 3473 | prevents trap from generating the proper signal (@code{SIGFPE}). To enable |
9f0df97a | 3474 | the use of break, use the @option{--with-divide=breaks} |
8a36672b | 3475 | @command{configure} option when configuring GCC@. The default is to |
9f0df97a DD |
3476 | use traps on systems that support them. |
3477 | ||
a4d05547 | 3478 | Cross-compilers for the MIPS as target using the MIPS assembler |
01e97976 JM |
3479 | currently do not work, because the auxiliary programs |
3480 | @file{mips-tdump.c} and @file{mips-tfile.c} can't be compiled on | |
a4d05547 | 3481 | anything but a MIPS. It does work to cross compile for a MIPS |
01e97976 JM |
3482 | if you use the GNU assembler and linker. |
3483 | ||
549fb079 DD |
3484 | The linker from GNU binutils versions prior to 2.17 has a bug which |
3485 | causes the runtime linker stubs in @file{libgcj.so} to be incorrectly | |
3486 | generated. If you want to use libgcj, either use binutils 2.17 or | |
3487 | later to build it or export @samp{LD_BIND_NOW=1} in your runtime environment. | |
3488 | ||
5fb57097 EB |
3489 | @html |
3490 | <hr /> | |
3491 | @end html | |
b953cc4b RO |
3492 | @heading @anchor{mips-sgi-irix5}mips-sgi-irix5 |
3493 | ||
7e270317 RO |
3494 | In order to compile GCC on an SGI running IRIX 5, the @samp{compiler_dev.hdr} |
3495 | subsystem must be installed from the IDO CD-ROM supplied by SGI@. | |
3496 | It is also available for download from | |
8df5a2b4 | 3497 | @uref{ftp://ftp.sgi.com/sgi/IRIX5.3/iris-development-option-5.3.tardist}. |
f42974dc | 3498 | |
213ba345 RO |
3499 | If you use the MIPS C compiler to bootstrap, it may be necessary |
3500 | to increase its table size for switch statements with the | |
3501 | @option{-Wf,-XNg1500} option. If you use the @option{-O2} | |
3502 | optimization option, you also need to use @option{-Olimit 3000}. | |
f42974dc | 3503 | |
7e270317 | 3504 | To enable debugging under IRIX 5, you must use GNU binutils 2.15 or |
82563d35 RS |
3505 | later, and use the @option{--with-gnu-ld} @command{configure} option |
3506 | when configuring GCC@. You need to use GNU @command{ar} and @command{nm}, | |
3507 | also distributed with GNU binutils. | |
f42974dc | 3508 | |
c5e1045b RS |
3509 | Some users have reported that @command{/bin/sh} will hang during bootstrap. |
3510 | This problem can be avoided by running the commands: | |
3511 | ||
3512 | @smallexample | |
3513 | % CONFIG_SHELL=/bin/ksh | |
3514 | % export CONFIG_SHELL | |
3515 | @end smallexample | |
3516 | ||
3517 | before starting the build. | |
3518 | ||
f42974dc | 3519 | @html |
b8db17af | 3520 | <hr /> |
f42974dc | 3521 | @end html |
b953cc4b | 3522 | @heading @anchor{mips-sgi-irix6}mips-sgi-irix6 |
f42974dc | 3523 | |
7e270317 | 3524 | If you are using SGI's MIPSpro @command{cc} as your bootstrap compiler, you must |
f42974dc DW |
3525 | ensure that the N32 ABI is in use. To test this, compile a simple C |
3526 | file with @command{cc} and then run @command{file} on the | |
3527 | resulting object file. The output should look like: | |
3528 | ||
3ab51846 | 3529 | @smallexample |
213ba345 | 3530 | test.o: ELF N32 MSB @dots{} |
3ab51846 | 3531 | @end smallexample |
f42974dc DW |
3532 | |
3533 | If you see: | |
213ba345 | 3534 | |
3ab51846 | 3535 | @smallexample |
213ba345 | 3536 | test.o: ELF 32-bit MSB @dots{} |
3ab51846 | 3537 | @end smallexample |
213ba345 RO |
3538 | |
3539 | or | |
3540 | ||
3ab51846 | 3541 | @smallexample |
213ba345 | 3542 | test.o: ELF 64-bit MSB @dots{} |
3ab51846 | 3543 | @end smallexample |
f42974dc | 3544 | |
213ba345 | 3545 | then your version of @command{cc} uses the O32 or N64 ABI by default. You |
38209993 | 3546 | should set the environment variable @env{CC} to @samp{cc -n32} |
82563d35 | 3547 | before configuring GCC@. |
f42974dc | 3548 | |
0fca60ab | 3549 | If you want the resulting @command{gcc} to run on old 32-bit systems |
7e270317 | 3550 | with the MIPS R4400 CPU, you need to ensure that only code for the @samp{mips3} |
0fca60ab RO |
3551 | instruction set architecture (ISA) is generated. While GCC 3.x does |
3552 | this correctly, both GCC 2.95 and SGI's MIPSpro @command{cc} may change | |
3553 | the ISA depending on the machine where GCC is built. Using one of them | |
7e270317 RO |
3554 | as the bootstrap compiler may result in @samp{mips4} code, which won't run at |
3555 | all on @samp{mips3}-only systems. For the test program above, you should see: | |
0fca60ab | 3556 | |
3ab51846 | 3557 | @smallexample |
0fca60ab | 3558 | test.o: ELF N32 MSB mips-3 @dots{} |
3ab51846 | 3559 | @end smallexample |
0fca60ab RO |
3560 | |
3561 | If you get: | |
3562 | ||
3ab51846 | 3563 | @smallexample |
0fca60ab | 3564 | test.o: ELF N32 MSB mips-4 @dots{} |
3ab51846 | 3565 | @end smallexample |
0fca60ab RO |
3566 | |
3567 | instead, you should set the environment variable @env{CC} to @samp{cc | |
3568 | -n32 -mips3} or @samp{gcc -mips3} respectively before configuring GCC@. | |
3569 | ||
82563d35 RS |
3570 | MIPSpro C 7.4 may cause bootstrap failures, due to a bug when inlining |
3571 | @code{memcmp}. Either add @code{-U__INLINE_INTRINSICS} to the @env{CC} | |
3572 | environment variable as a workaround or upgrade to MIPSpro C 7.4.1m. | |
3573 | ||
7e270317 RO |
3574 | GCC on IRIX 6 is usually built to support the N32, O32 and N64 ABIs. If |
3575 | you build GCC on a system that doesn't have the N64 libraries installed | |
3576 | or cannot run 64-bit binaries, | |
213ba345 | 3577 | you need to configure with @option{--disable-multilib} so GCC doesn't |
7e270317 RO |
3578 | try to use them. This will disable building the O32 libraries, too. |
3579 | Look for @file{/usr/lib64/libc.so.1} to see if you | |
213ba345 RO |
3580 | have the 64-bit libraries installed. |
3581 | ||
7e270317 RO |
3582 | To enable debugging for the O32 ABI, you must use GNU @command{as} from |
3583 | GNU binutils 2.15 or later. You may also use GNU @command{ld}, but | |
3584 | this is not required and currently causes some problems with Ada. | |
f42974dc | 3585 | |
b953cc4b RO |
3586 | The @option{--enable-threads} option doesn't currently work, a patch is |
3587 | in preparation for a future release. The @option{--enable-libgcj} | |
3588 | option is disabled by default: IRIX 6 uses a very low default limit | |
7e270317 | 3589 | (20480) for the command line length. Although @command{libtool} contains a |
b953cc4b RO |
3590 | workaround for this problem, at least the N64 @samp{libgcj} is known not |
3591 | to build despite this, running into an internal error of the native | |
3592 | @command{ld}. A sure fix is to increase this limit (@samp{ncargs}) to | |
3593 | its maximum of 262144 bytes. If you have root access, you can use the | |
3594 | @command{systune} command to do this. | |
3595 | ||
93e89068 PC |
3596 | @code{wchar_t} support in @samp{libstdc++} is not available for old |
3597 | IRIX 6.5.x releases, @math{x < 19}. The problem cannot be autodetected | |
3598 | and in order to build GCC for such targets you need to configure with | |
3599 | @option{--disable-wchar_t}. | |
3600 | ||
7e270317 | 3601 | See @uref{http://freeware.sgi.com/} for more |
3aa8219e | 3602 | information about using GCC on IRIX platforms. |
f42974dc | 3603 | |
b8df899a | 3604 | @html |
b8db17af | 3605 | <hr /> |
b8df899a | 3606 | @end html |
5a4c9b10 | 3607 | @heading @anchor{powerpc-x-x}powerpc-*-* |
b8df899a | 3608 | |
6cfb3f16 JM |
3609 | You can specify a default version for the @option{-mcpu=@var{cpu_type}} |
3610 | switch by using the configure option @option{--with-cpu-@var{cpu_type}}. | |
b8df899a | 3611 | |
4f2b1139 | 3612 | @html |
b8db17af | 3613 | <hr /> |
4f2b1139 | 3614 | @end html |
5a4c9b10 | 3615 | @heading @anchor{powerpc-x-darwin}powerpc-*-darwin* |
4f2b1139 SS |
3616 | PowerPC running Darwin (Mac OS X kernel). |
3617 | ||
4f2b1139 SS |
3618 | Pre-installed versions of Mac OS X may not include any developer tools, |
3619 | meaning that you will not be able to build GCC from source. Tool | |
3620 | binaries are available at | |
beb5f807 | 3621 | @uref{http://developer.apple.com/darwin/projects/compiler/} (free |
4f2b1139 SS |
3622 | registration required). |
3623 | ||
80c85ca2 MS |
3624 | This version of GCC requires at least cctools-590.36. The |
3625 | cctools-590.36 package referenced from | |
3626 | @uref{http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html} will not work | |
3627 | on systems older than 10.3.9 (aka darwin7.9.0). | |
4f2b1139 | 3628 | |
021c4bfd | 3629 | @html |
b8db17af | 3630 | <hr /> |
021c4bfd | 3631 | @end html |
5a4c9b10 | 3632 | @heading @anchor{powerpc-x-elf}powerpc-*-elf, powerpc-*-sysv4 |
021c4bfd RO |
3633 | PowerPC system in big endian mode, running System V.4. |
3634 | ||
f42974dc | 3635 | @html |
b8db17af | 3636 | <hr /> |
f42974dc | 3637 | @end html |
5a4c9b10 | 3638 | @heading @anchor{powerpc-x-linux-gnu}powerpc*-*-linux-gnu* |
f42974dc | 3639 | |
f9047ed3 | 3640 | You will need |
c3a2edb6 | 3641 | @uref{ftp://ftp.kernel.org/pub/linux/devel/binutils,,binutils 2.15} |
791a949f | 3642 | or newer for a working GCC@. |
f42974dc | 3643 | |
edf1b3f3 | 3644 | @html |
b8db17af | 3645 | <hr /> |
edf1b3f3 | 3646 | @end html |
5a4c9b10 | 3647 | @heading @anchor{powerpc-x-netbsd}powerpc-*-netbsd* |
edf1b3f3 | 3648 | PowerPC system in big endian mode running NetBSD@. To build the |
1a598a97 | 3649 | documentation you will need Texinfo version 4.4 (NetBSD 1.5.1 included |
edf1b3f3 AC |
3650 | Texinfo version 3.12). |
3651 | ||
b8df899a | 3652 | @html |
b8db17af | 3653 | <hr /> |
b8df899a | 3654 | @end html |
5a4c9b10 | 3655 | @heading @anchor{powerpc-x-eabisim}powerpc-*-eabisim |
b8df899a JM |
3656 | Embedded PowerPC system in big endian mode for use in running under the |
3657 | PSIM simulator. | |
3658 | ||
b8df899a | 3659 | @html |
b8db17af | 3660 | <hr /> |
b8df899a | 3661 | @end html |
5a4c9b10 | 3662 | @heading @anchor{powerpc-x-eabi}powerpc-*-eabi |
b8df899a JM |
3663 | Embedded PowerPC system in big endian mode. |
3664 | ||
b8df899a | 3665 | @html |
b8db17af | 3666 | <hr /> |
b8df899a | 3667 | @end html |
5a4c9b10 | 3668 | @heading @anchor{powerpcle-x-elf}powerpcle-*-elf, powerpcle-*-sysv4 |
b8df899a JM |
3669 | PowerPC system in little endian mode, running System V.4. |
3670 | ||
b8df899a | 3671 | @html |
b8db17af | 3672 | <hr /> |
b8df899a | 3673 | @end html |
5a4c9b10 | 3674 | @heading @anchor{powerpcle-x-eabisim}powerpcle-*-eabisim |
b8df899a JM |
3675 | Embedded PowerPC system in little endian mode for use in running under |
3676 | the PSIM simulator. | |
3677 | ||
3678 | @html | |
b8db17af | 3679 | <hr /> |
b8df899a | 3680 | @end html |
5a4c9b10 | 3681 | @heading @anchor{powerpcle-x-eabi}powerpcle-*-eabi |
b8df899a JM |
3682 | Embedded PowerPC system in little endian mode. |
3683 | ||
91abf72d | 3684 | @html |
b8db17af | 3685 | <hr /> |
91abf72d | 3686 | @end html |
5a4c9b10 | 3687 | @heading @anchor{s390-x-linux}s390-*-linux* |
95fef11f | 3688 | S/390 system running GNU/Linux for S/390@. |
91abf72d HP |
3689 | |
3690 | @html | |
b8db17af | 3691 | <hr /> |
91abf72d | 3692 | @end html |
5a4c9b10 | 3693 | @heading @anchor{s390x-x-linux}s390x-*-linux* |
95fef11f | 3694 | zSeries system (64-bit) running GNU/Linux for zSeries@. |
91abf72d | 3695 | |
8bf06993 UW |
3696 | @html |
3697 | <hr /> | |
3698 | @end html | |
5a4c9b10 | 3699 | @heading @anchor{s390x-ibm-tpf}s390x-ibm-tpf* |
8a36672b | 3700 | zSeries system (64-bit) running TPF@. This platform is |
8bf06993 UW |
3701 | supported as cross-compilation target only. |
3702 | ||
f42974dc | 3703 | @html |
b8db17af | 3704 | <hr /> |
f42974dc | 3705 | @end html |
250d5688 | 3706 | @c Please use Solaris 2 to refer to all release of Solaris, starting |
1460af95 | 3707 | @c with 2.0 until 2.6, 7, 8, etc. Solaris 1 was a marketing name for |
250d5688 RO |
3708 | @c SunOS 4 releases which we don't use to avoid confusion. Solaris |
3709 | @c alone is too unspecific and must be avoided. | |
5a4c9b10 | 3710 | @heading @anchor{x-x-solaris2}*-*-solaris2* |
f42974dc | 3711 | |
250d5688 | 3712 | Sun does not ship a C compiler with Solaris 2. To bootstrap and install |
962e6e00 | 3713 | GCC you first have to install a pre-built compiler, see the |
dbd210ef | 3714 | @uref{binaries.html,,binaries page} for details. |
f42974dc | 3715 | |
250d5688 | 3716 | The Solaris 2 @command{/bin/sh} will often fail to configure |
92441f83 | 3717 | @file{libstdc++-v3}, @file{boehm-gc} or @file{libjava}. We therefore |
1da1ce3f | 3718 | recommend using the following initial sequence of commands |
bc890961 EB |
3719 | |
3720 | @smallexample | |
3721 | % CONFIG_SHELL=/bin/ksh | |
3722 | % export CONFIG_SHELL | |
bc890961 EB |
3723 | @end smallexample |
3724 | ||
1da1ce3f | 3725 | and proceed as described in @uref{configure.html,,the configure instructions}. |
37de1373 GP |
3726 | In addition we strongly recommend specifying an absolute path to invoke |
3727 | @var{srcdir}/configure. | |
e6855a2d | 3728 | |
b8df899a | 3729 | Solaris 2 comes with a number of optional OS packages. Some of these |
92441f83 | 3730 | are needed to use GCC fully, namely @code{SUNWarc}, |
dbd210ef KC |
3731 | @code{SUNWbtool}, @code{SUNWesu}, @code{SUNWhea}, @code{SUNWlibm}, |
3732 | @code{SUNWsprot}, and @code{SUNWtoo}. If you did not install all | |
250d5688 | 3733 | optional packages when installing Solaris 2, you will need to verify that |
b8df899a JM |
3734 | the packages that GCC needs are installed. |
3735 | ||
3736 | To check whether an optional package is installed, use | |
dbd210ef | 3737 | the @command{pkginfo} command. To add an optional package, use the |
250d5688 | 3738 | @command{pkgadd} command. For further details, see the Solaris 2 |
b8df899a JM |
3739 | documentation. |
3740 | ||
250d5688 | 3741 | Trying to use the linker and other tools in |
b8df899a JM |
3742 | @file{/usr/ucb} to install GCC has been observed to cause trouble. |
3743 | For example, the linker may hang indefinitely. The fix is to remove | |
250d5688 | 3744 | @file{/usr/ucb} from your @env{PATH}. |
f42974dc | 3745 | |
bc890961 EB |
3746 | The build process works more smoothly with the legacy Sun tools so, if you |
3747 | have @file{/usr/xpg4/bin} in your @env{PATH}, we recommend that you place | |
3748 | @file{/usr/bin} before @file{/usr/xpg4/bin} for the duration of the build. | |
3749 | ||
021c4bfd | 3750 | All releases of GNU binutils prior to 2.11.2 have known bugs on this |
51e9a60c EB |
3751 | platform. We recommend the use of GNU binutils 2.11.2 or later, or the |
3752 | vendor tools (Sun @command{as}, Sun @command{ld}). Note that your mileage | |
3753 | may vary if you use a combination of the GNU tools and the Sun tools: while | |
3754 | the combination GNU @command{as} + Sun @command{ld} should reasonably work, | |
3755 | the reverse combination Sun @command{as} + GNU @command{ld} is known to | |
3756 | cause memory corruption at runtime in some cases for C++ programs. | |
3757 | ||
3758 | The stock GNU binutils 2.15 release is broken on this platform because of a | |
3759 | single bug. It has been fixed on the 2.15 branch in the CVS repository. | |
3760 | You can obtain a working version by checking out the binutils-2_15-branch | |
3761 | from the CVS repository or applying the patch | |
224edf72 | 3762 | @uref{http://sources.redhat.com/ml/binutils-cvs/2004-09/msg00036.html} to the |
51e9a60c | 3763 | release. |
f42974dc | 3764 | |
ff8f80f2 EB |
3765 | We recommend using GNU binutils 2.16 or later in conjunction with GCC 4.x, |
3766 | or the vendor tools (Sun @command{as}, Sun @command{ld}). However, for | |
3767 | Solaris 10 and above, an additional patch is required in order for the GNU | |
3768 | linker to be able to cope with a new flavor of shared libraries. You | |
3769 | can obtain a working version by checking out the binutils-2_16-branch from | |
3770 | the CVS repository or applying the patch | |
2c00bd42 EB |
3771 | @uref{http://sourceware.org/ml/binutils-cvs/2005-07/msg00122.html} to the |
3772 | release. | |
3773 | ||
250d5688 RO |
3774 | Sun bug 4296832 turns up when compiling X11 headers with GCC 2.95 or |
3775 | newer: @command{g++} will complain that types are missing. These headers assume | |
3776 | that omitting the type means @code{int}; this assumption worked for C89 but | |
3777 | is wrong for C++, and is now wrong for C99 also. | |
3778 | ||
13ba36b4 | 3779 | @command{g++} accepts such (invalid) constructs with the option |
250d5688 RO |
3780 | @option{-fpermissive}; it |
3781 | will assume that any missing type is @code{int} (as defined by C89). | |
3782 | ||
3783 | There are patches for Solaris 2.6 (105633-56 or newer for SPARC, | |
3784 | 106248-42 or newer for Intel), Solaris 7 (108376-21 or newer for SPARC, | |
3785 | 108377-20 for Intel), and Solaris 8 (108652-24 or newer for SPARC, | |
3786 | 108653-22 for Intel) that fix this bug. | |
f42974dc | 3787 | |
c7525a64 KG |
3788 | Sun bug 4927647 sometimes causes random spurious testsuite failures |
3789 | related to missing diagnostic output. This bug doesn't affect GCC | |
3790 | itself, rather it is a kernel bug triggered by the @command{expect} | |
3791 | program which is used only by the GCC testsuite driver. When the bug | |
3792 | causes the @command{expect} program to miss anticipated output, extra | |
3793 | testsuite failures appear. | |
3794 | ||
3795 | There are patches for Solaris 8 (117350-12 or newer for SPARC, | |
3796 | 117351-12 or newer for Intel) and Solaris 9 (117171-11 or newer for | |
3797 | SPARC, 117172-11 or newer for Intel) that address this problem. | |
3798 | ||
dbd210ef | 3799 | @html |
b8db17af | 3800 | <hr /> |
dbd210ef | 3801 | @end html |
5a4c9b10 | 3802 | @heading @anchor{sparc-sun-solaris2}sparc-sun-solaris2* |
dbd210ef | 3803 | |
1405141b DN |
3804 | When GCC is configured to use binutils 2.11.2 or later the binaries |
3805 | produced are smaller than the ones produced using Sun's native tools; | |
3806 | this difference is quite significant for binaries containing debugging | |
3807 | information. | |
3808 | ||
250d5688 | 3809 | Sun @command{as} 4.x is broken in that it cannot cope with long symbol names. |
dbd210ef KC |
3810 | A typical error message might look similar to the following: |
3811 | ||
8c085f6f JJ |
3812 | @smallexample |
3813 | /usr/ccs/bin/as: "/var/tmp/ccMsw135.s", line 11041: error: | |
3814 | can't compute value of an expression involving an external symbol. | |
3815 | @end smallexample | |
dbd210ef | 3816 | |
250d5688 RO |
3817 | This is Sun bug 4237974. This is fixed with patch 108908-02 for Solaris |
3818 | 2.6 and has been fixed in later (5.x) versions of the assembler, | |
3819 | starting with Solaris 7. | |
dbd210ef | 3820 | |
03b272d2 | 3821 | Starting with Solaris 7, the operating system is capable of executing |
975c6e4e RO |
3822 | 64-bit SPARC V9 binaries. GCC 3.1 and later properly supports |
3823 | this; the @option{-m64} option enables 64-bit code generation. | |
3824 | However, if all you want is code tuned for the UltraSPARC CPU, you | |
3825 | should try the @option{-mtune=ultrasparc} option instead, which produces | |
3826 | code that, unlike full 64-bit code, can still run on non-UltraSPARC | |
edf1c8df | 3827 | machines. |
03b272d2 | 3828 | |
975c6e4e | 3829 | When configuring on a Solaris 7 or later system that is running a kernel |
8947df0c RH |
3830 | that supports only 32-bit binaries, one must configure with |
3831 | @option{--disable-multilib}, since we will not be able to build the | |
3832 | 64-bit target libraries. | |
3fc602a0 | 3833 | |
ae81c844 EB |
3834 | GCC 3.3 and GCC 3.4 trigger code generation bugs in earlier versions of |
3835 | the GNU compiler (especially GCC 3.0.x versions), which lead to the | |
3836 | miscompilation of the stage1 compiler and the subsequent failure of the | |
3837 | bootstrap process. A workaround is to use GCC 3.2.3 as an intermediary | |
431ae0bf | 3838 | stage, i.e.@: to bootstrap that compiler with the base compiler and then |
ae81c844 EB |
3839 | use it to bootstrap the final compiler. |
3840 | ||
94b18ec1 EB |
3841 | GCC 3.4 triggers a code generation bug in versions 5.4 (Sun ONE Studio 7) |
3842 | and 5.5 (Sun ONE Studio 8) of the Sun compiler, which causes a bootstrap | |
3843 | failure in form of a miscompilation of the stage1 compiler by the Sun | |
3844 | compiler. This is Sun bug 4974440. This is fixed with patch 112760-07. | |
3845 | ||
1460af95 | 3846 | GCC 3.4 changed the default debugging format from STABS to DWARF-2 for |
dd48afcd EB |
3847 | 32-bit code on Solaris 7 and later. If you use the Sun assembler, this |
3848 | change apparently runs afoul of Sun bug 4910101 (which is referenced as | |
3849 | a x86-only problem by Sun, probably because they do not use DWARF-2). | |
3850 | A symptom of the problem is that you cannot compile C++ programs like | |
3851 | @command{groff} 1.19.1 without getting messages similar to the following: | |
7c2f2b41 EB |
3852 | |
3853 | @smallexample | |
3854 | ld: warning: relocation error: R_SPARC_UA32: @dots{} | |
3855 | external symbolic relocation against non-allocatable section | |
3856 | .debug_info cannot be processed at runtime: relocation ignored. | |
3857 | @end smallexample | |
3858 | ||
3859 | To work around this problem, compile with @option{-gstabs+} instead of | |
3860 | plain @option{-g}. | |
1460af95 | 3861 | |
b3c9881c EB |
3862 | When configuring the GNU Multiple Precision Library (GMP) or the MPFR |
3863 | library on a Solaris 7 or later system, the canonical target triplet | |
3864 | must be specified as the @command{build} parameter on the configure | |
3865 | line. This triplet can be obtained by invoking ./config.guess in | |
3866 | the toplevel source directory of GCC (and not that of GMP or MPFR). | |
3867 | For example on a Solaris 7 system: | |
25c62e24 EB |
3868 | |
3869 | @smallexample | |
b3c9881c | 3870 | % ./configure --build=sparc-sun-solaris2.7 --prefix=xxx |
25c62e24 EB |
3871 | @end smallexample |
3872 | ||
f42974dc | 3873 | @html |
b8db17af | 3874 | <hr /> |
f42974dc | 3875 | @end html |
d8fcd085 | 3876 | @heading @anchor{sparc-sun-solaris27}sparc-sun-solaris2.7 |
f42974dc | 3877 | |
250d5688 | 3878 | Sun patch 107058-01 (1999-01-13) for Solaris 7/SPARC triggers a bug in |
f42974dc DW |
3879 | the dynamic linker. This problem (Sun bug 4210064) affects GCC 2.8 |
3880 | and later, including all EGCS releases. Sun formerly recommended | |
3881 | 107058-01 for all Solaris 7 users, but around 1999-09-01 it started to | |
3882 | recommend it only for people who use Sun's compilers. | |
f9047ed3 | 3883 | |
f42974dc DW |
3884 | Here are some workarounds to this problem: |
3885 | @itemize @bullet | |
3886 | @item | |
3887 | Do not install Sun patch 107058-01 until after Sun releases a | |
3888 | complete patch for bug 4210064. This is the simplest course to take, | |
3889 | unless you must also use Sun's C compiler. Unfortunately 107058-01 | |
250d5688 | 3890 | is preinstalled on some new Solaris 7-based hosts, so you may have to |
f42974dc | 3891 | back it out. |
f9047ed3 | 3892 | |
f42974dc DW |
3893 | @item |
3894 | Copy the original, unpatched Solaris 7 | |
3895 | @command{/usr/ccs/bin/as} into | |
8e5f33ff | 3896 | @command{/usr/local/libexec/gcc/sparc-sun-solaris2.7/3.4/as}, |
f42974dc DW |
3897 | adjusting the latter name to fit your local conventions and software |
3898 | version numbers. | |
3899 | ||
3900 | @item | |
3901 | Install Sun patch 106950-03 (1999-05-25) or later. Nobody with | |
3902 | both 107058-01 and 106950-03 installed has reported the bug with GCC | |
3903 | and Sun's dynamic linker. This last course of action is riskiest, | |
3904 | for two reasons. First, you must install 106950 on all hosts that | |
3905 | run code generated by GCC; it doesn't suffice to install it only on | |
3906 | the hosts that run GCC itself. Second, Sun says that 106950-03 is | |
3907 | only a partial fix for bug 4210064, but Sun doesn't know whether the | |
161d7b59 | 3908 | partial fix is adequate for GCC@. Revision -08 or later should fix |
1460af95 | 3909 | the bug. The current (as of 2004-05-23) revision is -24, and is included in |
f282ffb3 | 3910 | the Solaris 7 Recommended Patch Cluster. |
f9047ed3 | 3911 | @end itemize |
f42974dc | 3912 | |
fdbf04c8 EB |
3913 | GCC 3.3 triggers a bug in version 5.0 Alpha 03/27/98 of the Sun assembler, |
3914 | which causes a bootstrap failure when linking the 64-bit shared version of | |
8a36672b | 3915 | libgcc. A typical error message is: |
fdbf04c8 EB |
3916 | |
3917 | @smallexample | |
3918 | ld: fatal: relocation error: R_SPARC_32: file libgcc/sparcv9/_muldi3.o: | |
3919 | symbol <unknown>: offset 0xffffffff7ec133e7 is non-aligned. | |
3920 | @end smallexample | |
3921 | ||
3922 | This bug has been fixed in the final 5.0 version of the assembler. | |
f42974dc | 3923 | |
661f4f90 EB |
3924 | A similar problem was reported for version Sun WorkShop 6 99/08/18 of the |
3925 | Sun assembler, which causes a bootstrap failure with GCC 4.0.0: | |
3926 | ||
3927 | @smallexample | |
3928 | ld: fatal: relocation error: R_SPARC_DISP32: | |
3929 | file .libs/libstdc++.lax/libsupc++convenience.a/vterminate.o: | |
3930 | symbol <unknown>: offset 0xfccd33ad is non-aligned | |
3931 | @end smallexample | |
3932 | ||
3933 | This bug has been fixed in more recent revisions of the assembler. | |
3934 | ||
c6fa9728 | 3935 | @html |
b8db17af | 3936 | <hr /> |
c6fa9728 | 3937 | @end html |
5a4c9b10 | 3938 | @heading @anchor{sparc-x-linux}sparc-*-linux* |
c6fa9728 JS |
3939 | |
3940 | GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4 | |
3941 | or newer on this platform. All earlier binutils and glibc | |
3942 | releases mishandled unaligned relocations on @code{sparc-*-*} targets. | |
3943 | ||
3944 | ||
f42974dc | 3945 | @html |
b8db17af | 3946 | <hr /> |
f42974dc | 3947 | @end html |
5a4c9b10 | 3948 | @heading @anchor{sparc64-x-solaris2}sparc64-*-solaris2* |
e403b4bc | 3949 | |
b3c9881c EB |
3950 | When configuring the GNU Multiple Precision Library (GMP) or the |
3951 | MPFR library, the canonical target triplet must be specified as | |
3952 | the @command{build} parameter on the configure line. For example | |
3953 | on a Solaris 7 system: | |
3954 | ||
3955 | @smallexample | |
3956 | % ./configure --build=sparc64-sun-solaris2.7 --prefix=xxx | |
3957 | @end smallexample | |
3958 | ||
e403b4bc CR |
3959 | The following compiler flags must be specified in the configure |
3960 | step in order to bootstrap this target with the Sun compiler: | |
3961 | ||
3ab51846 | 3962 | @smallexample |
b3c9881c | 3963 | % CC="cc -xarch=v9 -xildoff" @var{srcdir}/configure [@var{options}] [@var{target}] |
3ab51846 | 3964 | @end smallexample |
e403b4bc | 3965 | |
b3c9881c EB |
3966 | @option{-xarch=v9} specifies the SPARC-V9 architecture to the Sun toolchain |
3967 | and @option{-xildoff} turns off the incremental linker. | |
0dc7ee3c EB |
3968 | |
3969 | @html | |
3970 | <hr /> | |
3971 | @end html | |
5a4c9b10 | 3972 | @heading @anchor{sparcv9-x-solaris2}sparcv9-*-solaris2* |
0dc7ee3c EB |
3973 | |
3974 | This is a synonym for sparc64-*-solaris2*. | |
f42974dc | 3975 | |
b8df899a | 3976 | @html |
b8db17af | 3977 | <hr /> |
b8df899a | 3978 | @end html |
5a4c9b10 | 3979 | @heading @anchor{x-x-sysv}*-*-sysv* |
b8df899a JM |
3980 | On System V release 3, you may get this error message |
3981 | while linking: | |
3982 | ||
3983 | @smallexample | |
3984 | ld fatal: failed to write symbol name @var{something} | |
3985 | in strings table for file @var{whatever} | |
3986 | @end smallexample | |
3987 | ||
021c4bfd | 3988 | This probably indicates that the disk is full or your ulimit won't allow |
b8df899a JM |
3989 | the file to be as large as it needs to be. |
3990 | ||
3991 | This problem can also result because the kernel parameter @code{MAXUMEM} | |
3992 | is too small. If so, you must regenerate the kernel and make the value | |
3993 | much larger. The default value is reported to be 1024; a value of 32768 | |
3994 | is said to work. Smaller values may also work. | |
3995 | ||
3996 | On System V, if you get an error like this, | |
3997 | ||
3ab51846 | 3998 | @smallexample |
b8df899a JM |
3999 | /usr/local/lib/bison.simple: In function `yyparse': |
4000 | /usr/local/lib/bison.simple:625: virtual memory exhausted | |
3ab51846 | 4001 | @end smallexample |
b8df899a JM |
4002 | |
4003 | @noindent | |
021c4bfd | 4004 | that too indicates a problem with disk space, ulimit, or @code{MAXUMEM}. |
b8df899a | 4005 | |
f85b8d1a | 4006 | On a System V release 4 system, make sure @file{/usr/bin} precedes |
7ba4ca63 | 4007 | @file{/usr/ucb} in @code{PATH}. The @command{cc} command in |
f85b8d1a | 4008 | @file{/usr/ucb} uses libraries which have bugs. |
b8df899a JM |
4009 | |
4010 | @html | |
b8db17af | 4011 | <hr /> |
b8df899a JM |
4012 | @end html |
4013 | @heading @anchor{vax-dec-ultrix}vax-dec-ultrix | |
7ba4ca63 | 4014 | Don't try compiling with VAX C (@command{vcc}). It produces incorrect code |
b8df899a JM |
4015 | in some cases (for example, when @code{alloca} is used). |
4016 | ||
4977bab6 ZW |
4017 | @html |
4018 | <hr /> | |
4019 | @end html | |
5a4c9b10 | 4020 | @heading @anchor{x-x-vxworks}*-*-vxworks* |
4977bab6 | 4021 | Support for VxWorks is in flux. At present GCC supports @emph{only} the |
8a36672b | 4022 | very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC@. |
4977bab6 ZW |
4023 | We welcome patches for other architectures supported by VxWorks 5.5. |
4024 | Support for VxWorks AE would also be welcome; we believe this is merely | |
4025 | a matter of writing an appropriate ``configlette'' (see below). We are | |
4026 | not interested in supporting older, a.out or COFF-based, versions of | |
4027 | VxWorks in GCC 3. | |
4028 | ||
4029 | VxWorks comes with an older version of GCC installed in | |
4030 | @file{@var{$WIND_BASE}/host}; we recommend you do not overwrite it. | |
4031 | Choose an installation @var{prefix} entirely outside @var{$WIND_BASE}. | |
4032 | Before running @command{configure}, create the directories @file{@var{prefix}} | |
4033 | and @file{@var{prefix}/bin}. Link or copy the appropriate assembler, | |
8a36672b | 4034 | linker, etc.@: into @file{@var{prefix}/bin}, and set your @var{PATH} to |
4977bab6 ZW |
4035 | include that directory while running both @command{configure} and |
4036 | @command{make}. | |
4037 | ||
4038 | You must give @command{configure} the | |
4039 | @option{--with-headers=@var{$WIND_BASE}/target/h} switch so that it can | |
4040 | find the VxWorks system headers. Since VxWorks is a cross compilation | |
4041 | target only, you must also specify @option{--target=@var{target}}. | |
4042 | @command{configure} will attempt to create the directory | |
4043 | @file{@var{prefix}/@var{target}/sys-include} and copy files into it; | |
4044 | make sure the user running @command{configure} has sufficient privilege | |
4045 | to do so. | |
4046 | ||
4047 | GCC's exception handling runtime requires a special ``configlette'' | |
4048 | module, @file{contrib/gthr_supp_vxw_5x.c}. Follow the instructions in | |
4049 | that file to add the module to your kernel build. (Future versions of | |
daf2f129 | 4050 | VxWorks will incorporate this module.) |
4977bab6 | 4051 | |
7e081a0c AJ |
4052 | @html |
4053 | <hr /> | |
4054 | @end html | |
d8fcd085 | 4055 | @heading @anchor{x86-64-x-x}x86_64-*-*, amd64-*-* |
7e081a0c AJ |
4056 | |
4057 | GCC supports the x86-64 architecture implemented by the AMD64 processor | |
8a36672b | 4058 | (amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD@. |
7e081a0c AJ |
4059 | On GNU/Linux the default is a bi-arch compiler which is able to generate |
4060 | both 64-bit x86-64 and 32-bit x86 code (via the @option{-m32} switch). | |
4061 | ||
fd29f6ea | 4062 | @html |
b8db17af | 4063 | <hr /> |
fd29f6ea | 4064 | @end html |
5a4c9b10 | 4065 | @heading @anchor{xtensa-x-elf}xtensa-*-elf |
fd29f6ea BW |
4066 | |
4067 | This target is intended for embedded Xtensa systems using the | |
4068 | @samp{newlib} C library. It uses ELF but does not support shared | |
4069 | objects. Designed-defined instructions specified via the | |
4070 | Tensilica Instruction Extension (TIE) language are only supported | |
4071 | through inline assembly. | |
4072 | ||
4073 | The Xtensa configuration information must be specified prior to | |
e677f70c | 4074 | building GCC@. The @file{include/xtensa-config.h} header |
fd29f6ea BW |
4075 | file contains the configuration information. If you created your |
4076 | own Xtensa configuration with the Xtensa Processor Generator, the | |
4077 | downloaded files include a customized copy of this header file, | |
4078 | which you can use to replace the default header file. | |
4079 | ||
4080 | @html | |
b8db17af | 4081 | <hr /> |
fd29f6ea | 4082 | @end html |
5a4c9b10 | 4083 | @heading @anchor{xtensa-x-linux}xtensa-*-linux* |
fd29f6ea BW |
4084 | |
4085 | This target is for Xtensa systems running GNU/Linux. It supports ELF | |
4086 | shared objects and the GNU C library (glibc). It also generates | |
4087 | position-independent code (PIC) regardless of whether the | |
4088 | @option{-fpic} or @option{-fPIC} options are used. In other | |
f282ffb3 | 4089 | respects, this target is the same as the |
fd29f6ea BW |
4090 | @uref{#xtensa-*-elf,,@samp{xtensa-*-elf}} target. |
4091 | ||
f42974dc | 4092 | @html |
b8db17af | 4093 | <hr /> |
f42974dc | 4094 | @end html |
57694e40 | 4095 | @heading @anchor{windows}Microsoft Windows (32-bit) |
f42974dc | 4096 | |
5b65d351 | 4097 | Ports of GCC are included with the |
f42974dc DW |
4098 | @uref{http://www.cygwin.com/,,Cygwin environment}. |
4099 | ||
5b65d351 GP |
4100 | GCC will build under Cygwin without modification; it does not build |
4101 | with Microsoft's C++ compiler and there are no plans to make it do so. | |
ccc1ce6e | 4102 | |
f42974dc | 4103 | @html |
b8db17af | 4104 | <hr /> |
f42974dc | 4105 | @end html |
ef88b07d | 4106 | @heading @anchor{os2}OS/2 |
f42974dc DW |
4107 | |
4108 | GCC does not currently support OS/2. However, Andrew Zabolotny has been | |
14976c58 | 4109 | working on a generic OS/2 port with pgcc. The current code can be found |
f42974dc DW |
4110 | at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}. |
4111 | ||
f42974dc | 4112 | @html |
b8db17af | 4113 | <hr /> |
f42974dc | 4114 | @end html |
ef88b07d | 4115 | @heading @anchor{older}Older systems |
f9047ed3 JM |
4116 | |
4117 | GCC contains support files for many older (1980s and early | |
4118 | 1990s) Unix variants. For the most part, support for these systems | |
4119 | has not been deliberately removed, but it has not been maintained for | |
c7bdf0a6 | 4120 | several years and may suffer from bitrot. |
f9047ed3 | 4121 | |
c7bdf0a6 | 4122 | Starting with GCC 3.1, each release has a list of ``obsoleted'' systems. |
9340544b ZW |
4123 | Support for these systems is still present in that release, but |
4124 | @command{configure} will fail unless the @option{--enable-obsolete} | |
c7bdf0a6 ZW |
4125 | option is given. Unless a maintainer steps forward, support for these |
4126 | systems will be removed from the next release of GCC@. | |
f9047ed3 JM |
4127 | |
4128 | Support for old systems as hosts for GCC can cause problems if the | |
4129 | workarounds for compiler, library and operating system bugs affect the | |
161d7b59 | 4130 | cleanliness or maintainability of the rest of GCC@. In some cases, to |
f9047ed3 JM |
4131 | bring GCC up on such a system, if still possible with current GCC, may |
4132 | require first installing an old version of GCC which did work on that | |
c7bdf0a6 ZW |
4133 | system, and using it to compile a more recent GCC, to avoid bugs in the |
4134 | vendor compiler. Old releases of GCC 1 and GCC 2 are available in the | |
4135 | @file{old-releases} directory on the @uref{../mirrors.html,,GCC mirror | |
4136 | sites}. Header bugs may generally be avoided using | |
4137 | @command{fixincludes}, but bugs or deficiencies in libraries and the | |
4138 | operating system may still cause problems. | |
4139 | ||
4140 | Support for older systems as targets for cross-compilation is less | |
4141 | problematic than support for them as hosts for GCC; if an enthusiast | |
4142 | wishes to make such a target work again (including resurrecting any of | |
80521187 | 4143 | the targets that never worked with GCC 2, starting from the last |
c7bdf0a6 ZW |
4144 | version before they were removed), patches |
4145 | @uref{../contribute.html,,following the usual requirements} would be | |
4146 | likely to be accepted, since they should not affect the support for more | |
4147 | modern targets. | |
f9047ed3 JM |
4148 | |
4149 | For some systems, old versions of GNU binutils may also be useful, | |
021c4bfd | 4150 | and are available from @file{pub/binutils/old-releases} on |
f42974dc | 4151 | @uref{http://sources.redhat.com/mirrors.html,,sources.redhat.com mirror sites}. |
f9047ed3 JM |
4152 | |
4153 | Some of the information on specific systems above relates to | |
4154 | such older systems, but much of the information | |
4155 | about GCC on such systems (which may no longer be applicable to | |
f42974dc | 4156 | current GCC) is to be found in the GCC texinfo manual. |
f9047ed3 | 4157 | |
f42974dc | 4158 | @html |
b8db17af | 4159 | <hr /> |
f42974dc | 4160 | @end html |
d8fcd085 | 4161 | @heading @anchor{elf}all ELF targets (SVR4, Solaris 2, etc.) |
f42974dc | 4162 | |
38209993 LG |
4163 | C++ support is significantly better on ELF targets if you use the |
4164 | @uref{./configure.html#with-gnu-ld,,GNU linker}; duplicate copies of | |
4165 | inlines, vtables and template instantiations will be discarded | |
4166 | automatically. | |
f42974dc DW |
4167 | |
4168 | ||
4169 | @html | |
b8db17af | 4170 | <hr /> |
f42974dc DW |
4171 | <p> |
4172 | @end html | |
4173 | @ifhtml | |
4174 | @uref{./index.html,,Return to the GCC Installation page} | |
4175 | @end ifhtml | |
4176 | @end ifset | |
4177 | ||
73e2155a JM |
4178 | @c ***Old documentation****************************************************** |
4179 | @ifset oldhtml | |
4180 | @include install-old.texi | |
4181 | @html | |
b8db17af | 4182 | <hr /> |
73e2155a JM |
4183 | <p> |
4184 | @end html | |
4185 | @ifhtml | |
4186 | @uref{./index.html,,Return to the GCC Installation page} | |
4187 | @end ifhtml | |
4188 | @end ifset | |
4189 | ||
aed5964b JM |
4190 | @c ***GFDL******************************************************************** |
4191 | @ifset gfdlhtml | |
4192 | @include fdl.texi | |
4193 | @html | |
b8db17af | 4194 | <hr /> |
aed5964b JM |
4195 | <p> |
4196 | @end html | |
4197 | @ifhtml | |
4198 | @uref{./index.html,,Return to the GCC Installation page} | |
4199 | @end ifhtml | |
4200 | @end ifset | |
4201 | ||
f42974dc DW |
4202 | @c *************************************************************************** |
4203 | @c Part 6 The End of the Document | |
4204 | @ifinfo | |
4205 | @comment node-name, next, previous, up | |
aed5964b | 4206 | @node Concept Index, , GNU Free Documentation License, Top |
f42974dc DW |
4207 | @end ifinfo |
4208 | ||
4209 | @ifinfo | |
4210 | @unnumbered Concept Index | |
4211 | ||
4212 | @printindex cp | |
4213 | ||
4214 | @contents | |
4215 | @end ifinfo | |
4216 | @bye |