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1 | # configure.ac for GCC | |
2 | # Process this file with autoconf to generate a configuration script. | |
3 | ||
4 | # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 | |
5 | # Free Software Foundation, Inc. | |
6 | ||
7 | #This file is part of GCC. | |
8 | ||
9 | #GCC is free software; you can redistribute it and/or modify it under | |
10 | #the terms of the GNU General Public License as published by the Free | |
11 | #Software Foundation; either version 2, or (at your option) any later | |
12 | #version. | |
13 | ||
14 | #GCC is distributed in the hope that it will be useful, but WITHOUT | |
15 | #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | #for more details. | |
18 | ||
19 | #You should have received a copy of the GNU General Public License | |
20 | #along with GCC; see the file COPYING. If not, write to the Free | |
21 | #Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
22 | #02111-1307, USA. | |
23 | ||
24 | # -------------------------------- | |
25 | # Initialization and sanity checks | |
26 | # -------------------------------- | |
27 | ||
28 | AC_PREREQ(2.59) | |
29 | AC_INIT | |
30 | AC_CONFIG_SRCDIR(tree.c) | |
31 | AC_CONFIG_HEADER(auto-host.h:config.in) | |
32 | ||
33 | # Determine the host, build, and target systems | |
34 | AC_CANONICAL_BUILD | |
35 | AC_CANONICAL_HOST | |
36 | AC_CANONICAL_TARGET | |
37 | ||
38 | # Determine the noncanonical target name, for directory use. | |
39 | ACX_NONCANONICAL_TARGET | |
40 | ||
41 | # Determine the target- and build-specific subdirectories | |
42 | GCC_TOPLEV_SUBDIRS | |
43 | ||
44 | # Set program_transform_name | |
45 | AC_ARG_PROGRAM | |
46 | ||
47 | # Check for bogus environment variables. | |
48 | # Test if LIBRARY_PATH contains the notation for the current directory | |
49 | # since this would lead to problems installing/building glibc. | |
50 | # LIBRARY_PATH contains the current directory if one of the following | |
51 | # is true: | |
52 | # - one of the terminals (":" and ";") is the first or last sign | |
53 | # - two terminals occur directly after each other | |
54 | # - the path contains an element with a dot in it | |
55 | AC_MSG_CHECKING(LIBRARY_PATH variable) | |
56 | changequote(,)dnl | |
57 | case ${LIBRARY_PATH} in | |
58 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
59 | library_path_setting="contains current directory" | |
60 | ;; | |
61 | *) | |
62 | library_path_setting="ok" | |
63 | ;; | |
64 | esac | |
65 | changequote([,])dnl | |
66 | AC_MSG_RESULT($library_path_setting) | |
67 | if test "$library_path_setting" != "ok"; then | |
68 | AC_MSG_ERROR([ | |
69 | *** LIBRARY_PATH shouldn't contain the current directory when | |
70 | *** building gcc. Please change the environment variable | |
71 | *** and run configure again.]) | |
72 | fi | |
73 | ||
74 | # Test if GCC_EXEC_PREFIX contains the notation for the current directory | |
75 | # since this would lead to problems installing/building glibc. | |
76 | # GCC_EXEC_PREFIX contains the current directory if one of the following | |
77 | # is true: | |
78 | # - one of the terminals (":" and ";") is the first or last sign | |
79 | # - two terminals occur directly after each other | |
80 | # - the path contains an element with a dot in it | |
81 | AC_MSG_CHECKING(GCC_EXEC_PREFIX variable) | |
82 | changequote(,)dnl | |
83 | case ${GCC_EXEC_PREFIX} in | |
84 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
85 | gcc_exec_prefix_setting="contains current directory" | |
86 | ;; | |
87 | *) | |
88 | gcc_exec_prefix_setting="ok" | |
89 | ;; | |
90 | esac | |
91 | changequote([,])dnl | |
92 | AC_MSG_RESULT($gcc_exec_prefix_setting) | |
93 | if test "$gcc_exec_prefix_setting" != "ok"; then | |
94 | AC_MSG_ERROR([ | |
95 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
96 | *** building gcc. Please change the environment variable | |
97 | *** and run configure again.]) | |
98 | fi | |
99 | ||
100 | # ----------- | |
101 | # Directories | |
102 | # ----------- | |
103 | ||
104 | # Specify the local prefix | |
105 | local_prefix= | |
106 | AC_ARG_WITH(local-prefix, | |
107 | [ --with-local-prefix=DIR specifies directory to put local include], | |
108 | [case "${withval}" in | |
109 | yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;; | |
110 | no) ;; | |
111 | *) local_prefix=$with_local_prefix ;; | |
112 | esac]) | |
113 | ||
114 | # Default local prefix if it is empty | |
115 | if test x$local_prefix = x; then | |
116 | local_prefix=/usr/local | |
117 | fi | |
118 | ||
119 | # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only | |
120 | # passed in by the toplevel make and thus we'd get different behavior | |
121 | # depending on where we built the sources. | |
122 | gcc_gxx_include_dir= | |
123 | # Specify the g++ header file directory | |
124 | AC_ARG_WITH(gxx-include-dir, | |
125 | [ --with-gxx-include-dir=DIR | |
126 | specifies directory to put g++ header files], | |
127 | [case "${withval}" in | |
128 | yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;; | |
129 | no) ;; | |
130 | *) gcc_gxx_include_dir=$with_gxx_include_dir ;; | |
131 | esac]) | |
132 | ||
133 | if test x${gcc_gxx_include_dir} = x; then | |
134 | if test x${enable_version_specific_runtime_libs} = xyes; then | |
135 | gcc_gxx_include_dir='${libsubdir}/include/c++' | |
136 | else | |
137 | libstdcxx_incdir='c++/$(version)' | |
138 | changequote(<<, >>)dnl | |
139 | gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir} | |
140 | changequote([, ])dnl | |
141 | fi | |
142 | fi | |
143 | ||
144 | AC_ARG_WITH(cpp_install_dir, | |
145 | [ --with-cpp-install-dir=DIR | |
146 | install the user visible C preprocessor in DIR | |
147 | (relative to PREFIX) as well as PREFIX/bin], | |
148 | [if test x$withval = xyes; then | |
149 | AC_MSG_ERROR([option --with-cpp-install-dir requires an argument]) | |
150 | elif test x$withval != xno; then | |
151 | cpp_install_dir=$withval | |
152 | fi]) | |
153 | ||
154 | # We would like to our source tree to be readonly. However when releases or | |
155 | # pre-releases are generated, the flex/bison generated files as well as the | |
156 | # various formats of manuals need to be included along with the rest of the | |
157 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
158 | # just that. | |
159 | ||
160 | AC_MSG_CHECKING([whether to place generated files in the source directory]) | |
161 | dnl generated-files-in-srcdir is disabled by default | |
162 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
163 | [ --enable-generated-files-in-srcdir | |
164 | put copies of generated files in source dir | |
165 | intended for creating source tarballs for users | |
166 | without texinfo bison or flex.], | |
167 | generated_files_in_srcdir=$enableval, | |
168 | generated_files_in_srcdir=no) | |
169 | ||
170 | AC_MSG_RESULT($generated_files_in_srcdir) | |
171 | ||
172 | if test "$generated_files_in_srcdir" = "yes"; then | |
173 | GENINSRC='' | |
174 | else | |
175 | GENINSRC='#' | |
176 | fi | |
177 | AC_SUBST(GENINSRC) | |
178 | ||
179 | # ------------------- | |
180 | # Find default linker | |
181 | # ------------------- | |
182 | ||
183 | # With GNU ld | |
184 | AC_ARG_WITH(gnu-ld, | |
185 | [ --with-gnu-ld arrange to work with GNU ld.], | |
186 | gnu_ld_flag="$with_gnu_ld", | |
187 | gnu_ld_flag=no) | |
188 | ||
189 | # With pre-defined ld | |
190 | AC_ARG_WITH(ld, | |
191 | [ --with-ld arrange to use the specified ld (full pathname)], | |
192 | DEFAULT_LINKER="$with_ld") | |
193 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
194 | if test ! -x "$DEFAULT_LINKER"; then | |
195 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) | |
196 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
197 | gnu_ld_flag=yes | |
198 | fi | |
199 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", | |
200 | [Define to enable the use of a default linker.]) | |
201 | fi | |
202 | ||
203 | AC_MSG_CHECKING([whether a default linker was specified]) | |
204 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
205 | if test x"$gnu_ld_flag" = x"no"; then | |
206 | AC_MSG_RESULT([yes ($DEFAULT_LINKER)]) | |
207 | else | |
208 | AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)]) | |
209 | fi | |
210 | else | |
211 | AC_MSG_RESULT(no) | |
212 | fi | |
213 | ||
214 | # With demangler in GNU ld | |
215 | AC_ARG_WITH(demangler-in-ld, | |
216 | [ --with-demangler-in-ld try to use demangler in GNU ld.], | |
217 | demangler_in_ld="$with_demangler_in_ld", | |
218 | demangler_in_ld=no) | |
219 | ||
220 | # ---------------------- | |
221 | # Find default assembler | |
222 | # ---------------------- | |
223 | ||
224 | # With GNU as | |
225 | AC_ARG_WITH(gnu-as, | |
226 | [ --with-gnu-as arrange to work with GNU as], | |
227 | gas_flag="$with_gnu_as", | |
228 | gas_flag=no) | |
229 | ||
230 | AC_ARG_WITH(as, | |
231 | [ --with-as arrange to use the specified as (full pathname)], | |
232 | DEFAULT_ASSEMBLER="$with_as") | |
233 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
234 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
235 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) | |
236 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
237 | gas_flag=yes | |
238 | fi | |
239 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", | |
240 | [Define to enable the use of a default assembler.]) | |
241 | fi | |
242 | ||
243 | AC_MSG_CHECKING([whether a default assembler was specified]) | |
244 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
245 | if test x"$gas_flag" = x"no"; then | |
246 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
247 | else | |
248 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) | |
249 | fi | |
250 | else | |
251 | AC_MSG_RESULT(no) | |
252 | fi | |
253 | ||
254 | # --------------- | |
255 | # Find C compiler | |
256 | # --------------- | |
257 | ||
258 | # If a non-executable a.out is present (e.g. created by GNU as above even if | |
259 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
260 | # file, even when creating an executable, so an execution test fails. | |
261 | # Remove possible default executable files to avoid this. | |
262 | # | |
263 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
264 | # Autoconf includes it. | |
265 | rm -f a.out a.exe b.out | |
266 | ||
267 | # Find the native compiler | |
268 | AC_PROG_CC | |
269 | AM_PROG_CC_C_O | |
270 | # autoconf is lame and doesn't give us any substitution variable for this. | |
271 | if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then | |
272 | NO_MINUS_C_MINUS_O=yes | |
273 | else | |
274 | OUTPUT_OPTION='-o $@' | |
275 | fi | |
276 | AC_SUBST(NO_MINUS_C_MINUS_O) | |
277 | AC_SUBST(OUTPUT_OPTION) | |
278 | ||
279 | # ------------------------- | |
280 | # Check C compiler features | |
281 | # ------------------------- | |
282 | ||
283 | AC_PROG_CPP | |
284 | AC_C_INLINE | |
285 | ||
286 | gcc_AC_C_LONG_LONG | |
287 | ||
288 | # sizeof(char) is 1 by definition. | |
289 | AC_CHECK_SIZEOF(void *) | |
290 | AC_CHECK_SIZEOF(short) | |
291 | AC_CHECK_SIZEOF(int) | |
292 | AC_CHECK_SIZEOF(long) | |
293 | if test $ac_cv_c_long_long = yes; then | |
294 | AC_CHECK_SIZEOF(long long) | |
295 | fi | |
296 | if test $ac_cv_c___int64 = yes; then | |
297 | AC_CHECK_SIZEOF(__int64) | |
298 | fi | |
299 | ||
300 | # --------------------- | |
301 | # Warnings and checking | |
302 | # --------------------- | |
303 | ||
304 | # Check $CC warning features (if it's GCC). | |
305 | # We want to use -pedantic, but we don't want warnings about | |
306 | # * 'long long' | |
307 | # * variadic macros | |
308 | # So, we only use -pedantic if we can disable those warnings. | |
309 | ||
310 | AC_CACHE_CHECK( | |
311 | [whether ${CC} accepts -Wno-long-long], | |
312 | [ac_cv_prog_cc_w_no_long_long], | |
313 | [save_CFLAGS="$CFLAGS" | |
314 | CFLAGS="-Wno-long-long" | |
315 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
316 | [ac_cv_prog_cc_w_no_long_long=yes], | |
317 | [ac_cv_prog_cc_w_no_long_long=no]) | |
318 | CFLAGS="$save_CFLAGS" | |
319 | ]) | |
320 | ||
321 | AC_CACHE_CHECK( | |
322 | [whether ${CC} accepts -Wno-variadic-macros], | |
323 | [ac_cv_prog_cc_w_no_variadic_macros], | |
324 | [save_CFLAGS="$CFLAGS" | |
325 | CFLAGS="-Wno-variadic-macros" | |
326 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
327 | [ac_cv_prog_cc_w_no_variadic_macros=yes], | |
328 | [ac_cv_prog_cc_w_no_variadic_macros=no]) | |
329 | CFLAGS="$save_CFLAGS" | |
330 | ]) | |
331 | ||
332 | strict1_warn= | |
333 | if test $ac_cv_prog_cc_w_no_long_long = yes \ | |
334 | && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then | |
335 | strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros" | |
336 | fi | |
337 | AC_SUBST(strict1_warn) | |
338 | ||
339 | # Add -Wold-style-definition if it's accepted | |
340 | AC_CACHE_CHECK( | |
341 | [whether ${CC} accepts -Wold-style-definition], | |
342 | [ac_cv_prog_cc_w_old_style_definition], | |
343 | [save_CFLAGS="$CFLAGS" | |
344 | CFLAGS="-Wold-style-definition" | |
345 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
346 | [ac_cv_prog_cc_w_old_style_definition=yes], | |
347 | [ac_cv_prog_cc_w_old_style_definition=no]) | |
348 | CFLAGS="$save_CFLAGS" | |
349 | ]) | |
350 | if test $ac_cv_prog_cc_w_old_style_definition = yes ; then | |
351 | strict1_warn="${strict1_warn} -Wold-style-definition" | |
352 | fi | |
353 | ||
354 | # Enable -Werror, period. | |
355 | AC_ARG_ENABLE(werror_always, | |
356 | [ --enable-werror-always enable -Werror always], [], | |
357 | [enable_werror_always=no]) | |
358 | if test x${enable_werror_always} = xyes ; then | |
359 | strict1_warn="${strict1_warn} -Werror" | |
360 | WERROR=-Werror | |
361 | fi | |
362 | ||
363 | # If the native compiler is GCC, we can enable warnings even in stage1. | |
364 | # That's useful for people building cross-compilers, or just running a | |
365 | # quick `make'. | |
366 | warn_cflags= | |
367 | if test "x$GCC" = "xyes"; then | |
368 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
369 | fi | |
370 | AC_SUBST(warn_cflags) | |
371 | ||
372 | # Enable -Werror in bootstrap stage2 and later. | |
373 | is_release= | |
374 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
375 | is_release=yes | |
376 | fi | |
377 | AC_ARG_ENABLE(werror, | |
378 | [ --enable-werror enable -Werror in bootstrap stage2 and later], [], | |
379 | [if test x$is_release = x ; then | |
380 | # Default to "yes" on development branches. | |
381 | enable_werror=yes | |
382 | else | |
383 | # Default to "no" on release branches. | |
384 | enable_werror=no | |
385 | fi]) | |
386 | if test x$enable_werror = xyes ; then | |
387 | WERROR=-Werror | |
388 | fi | |
389 | AC_SUBST(WERROR) | |
390 | ||
391 | # Enable expensive internal checks | |
392 | AC_ARG_ENABLE(checking, | |
393 | [ --enable-checking[=LIST] | |
394 | enable expensive run-time checks. With LIST, | |
395 | enable only specific categories of checks. | |
396 | Categories are: assert,fold,gc,gcac,misc, | |
397 | rtlflag,rtl,runtime,tree,valgrind,release,yes,all;], | |
398 | [ac_checking_flags="${enableval}"],[ | |
399 | # Determine the default checks. | |
400 | if test x$is_release = x ; then | |
401 | ac_checking_flags=yes | |
402 | else | |
403 | ac_checking_flags=release | |
404 | fi]) | |
405 | ac_assert_checking=1 | |
406 | ac_checking= | |
407 | ac_tree_checking= | |
408 | ac_rtl_checking= | |
409 | ac_rtlflag_checking= | |
410 | ac_runtime_checking=1 | |
411 | ac_gc_checking= | |
412 | ac_gc_always_collect= | |
413 | ac_fold_checking= | |
414 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," | |
415 | for check in $ac_checking_flags | |
416 | do | |
417 | case $check in | |
418 | yes) ac_assert_checking=1 ; ac_checking=1 ; | |
419 | ac_tree_checking=1 ; ac_gc_checking=1 ; | |
420 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;; | |
421 | no) ac_assert_checking= ; ac_checking= ; | |
422 | ac_tree_checking= ; ac_rtl_checking= ; | |
423 | ac_rtlflag_checking= ; ac_gc_checking= ; | |
424 | ac_gc_always_collect= ; ac_fold_checking= ;; | |
425 | all) ac_assert_checking=1 ; ac_checking=1 ; | |
426 | ac_tree_checking=1 ; ac_rtl_checking=1 ; | |
427 | ac_rtlflag_checking=1 ; ac_runtime_checking=1; | |
428 | ac_gc_checking=1 ; ac_gc_always_collect=1 ; | |
429 | ac_fold_checking=1 ;; | |
430 | release) ac_assert_checking=1 ; ac_runtime_checking=1 ;; | |
431 | assert) ac_assert_checking=1 ;; | |
432 | fold) ac_fold_checking=1 ;; | |
433 | gc) ac_gc_checking=1 ;; | |
434 | gcac) ac_gc_always_collect=1 ;; | |
435 | misc) ac_checking=1 ;; | |
436 | rtlflag) ac_rtlflag_checking=1 ;; | |
437 | rtl) ac_rtl_checking=1 ;; | |
438 | runtime) ac_runtime_checking=1 ;; | |
439 | tree) ac_tree_checking=1 ;; | |
440 | valgrind) ac_checking_valgrind=1 ;; | |
441 | *) AC_MSG_ERROR(unknown check category $check) ;; | |
442 | esac | |
443 | done | |
444 | IFS="$ac_save_IFS" | |
445 | ||
446 | nocommon_flag="" | |
447 | if test x$ac_checking != x ; then | |
448 | AC_DEFINE(ENABLE_CHECKING, 1, | |
449 | [Define if you want more run-time sanity checks. This one gets a grab | |
450 | bag of miscellaneous but relatively cheap checks.]) | |
451 | nocommon_flag=-fno-common | |
452 | fi | |
453 | AC_SUBST(nocommon_flag) | |
454 | if test x$ac_assert_checking != x ; then | |
455 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
456 | [Define if you want assertions enabled. This is a cheap check.]) | |
457 | fi | |
458 | if test x$ac_runtime_checking != x ; then | |
459 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
460 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
461 | fi | |
462 | if test x$ac_tree_checking != x ; then | |
463 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
464 | [Define if you want all operations on trees (the basic data | |
465 | structure of the front ends) to be checked for dynamic type safety | |
466 | at runtime. This is moderately expensive. The tree browser debugging | |
467 | routines will also be enabled by this option. | |
468 | ]) | |
469 | TREEBROWSER=tree-browser.o | |
470 | fi | |
471 | AC_SUBST(TREEBROWSER) | |
472 | if test x$ac_rtl_checking != x ; then | |
473 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
474 | [Define if you want all operations on RTL (the basic data structure | |
475 | of the optimizer and back end) to be checked for dynamic type safety | |
476 | at runtime. This is quite expensive.]) | |
477 | fi | |
478 | if test x$ac_rtlflag_checking != x ; then | |
479 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
480 | [Define if you want RTL flag accesses to be checked against the RTL | |
481 | codes that are supported for each access macro. This is relatively | |
482 | cheap.]) | |
483 | fi | |
484 | if test x$ac_gc_checking != x ; then | |
485 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
486 | [Define if you want the garbage collector to do object poisoning and | |
487 | other memory allocation checks. This is quite expensive.]) | |
488 | fi | |
489 | if test x$ac_gc_always_collect != x ; then | |
490 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
491 | [Define if you want the garbage collector to operate in maximally | |
492 | paranoid mode, validating the entire heap and collecting garbage at | |
493 | every opportunity. This is extremely expensive.]) | |
494 | fi | |
495 | if test x$ac_fold_checking != x ; then | |
496 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
497 | [Define if you want fold checked that it never destructs its argument. | |
498 | This is quite expensive.]) | |
499 | fi | |
500 | valgrind_path_defines= | |
501 | valgrind_command= | |
502 | ||
503 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
504 | dnl # an if statement. This was the source of very frustrating bugs | |
505 | dnl # in converting to autoconf 2.5x! | |
506 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
507 | ||
508 | if test x$ac_checking_valgrind != x ; then | |
509 | # It is certainly possible that there's valgrind but no valgrind.h. | |
510 | # GCC relies on making annotations so we must have both. | |
511 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
512 | AC_TRY_CPP( | |
513 | [#include <valgrind/memcheck.h> | |
514 | #ifndef VALGRIND_DISCARD | |
515 | #error VALGRIND_DISCARD not defined | |
516 | #endif], | |
517 | [gcc_cv_header_valgrind_memcheck_h=yes], | |
518 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
519 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) | |
520 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
521 | AC_TRY_CPP( | |
522 | [#include <memcheck.h> | |
523 | #ifndef VALGRIND_DISCARD | |
524 | #error VALGRIND_DISCARD not defined | |
525 | #endif], | |
526 | [gcc_cv_header_memcheck_h=yes], | |
527 | gcc_cv_header_memcheck_h=no) | |
528 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) | |
529 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, | |
530 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
531 | if test "x$valgrind_path" = "x" \ | |
532 | || (test $have_valgrind_h = no \ | |
533 | && test $gcc_cv_header_memcheck_h = no \ | |
534 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
535 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
536 | fi | |
537 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
538 | valgrind_command="$valgrind_path -q" | |
539 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
540 | [Define if you want to run subprograms and generated programs | |
541 | through valgrind (a memory checker). This is extremely expensive.]) | |
542 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
543 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
544 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
545 | fi | |
546 | if test $gcc_cv_header_memcheck_h = yes; then | |
547 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
548 | [Define if valgrind's memcheck.h header is installed.]) | |
549 | fi | |
550 | fi | |
551 | AC_SUBST(valgrind_path_defines) | |
552 | AC_SUBST(valgrind_command) | |
553 | ||
554 | AC_ARG_ENABLE(mapped-location, | |
555 | [ --enable-mapped-location location_t is fileline integer cookie],, | |
556 | enable_mapped_location=no) | |
557 | ||
558 | if test "$enable_mapped_location" = yes ; then | |
559 | AC_DEFINE(USE_MAPPED_LOCATION, 1, | |
560 | [Define if location_t is fileline integer cookie.]) | |
561 | fi | |
562 | ||
563 | # Enable code coverage collection | |
564 | AC_ARG_ENABLE(coverage, | |
565 | [ --enable-coverage[=LEVEL] | |
566 | enable compiler's code coverage collection. | |
567 | Use to measure compiler performance and locate | |
568 | unused parts of the compiler. With LEVEL, specify | |
569 | optimization. Values are opt, noopt, | |
570 | default is noopt], | |
571 | [case "${enableval}" in | |
572 | yes|noopt) | |
573 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" | |
574 | ;; | |
575 | opt) | |
576 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" | |
577 | ;; | |
578 | no) | |
579 | # a.k.a. --disable-coverage | |
580 | coverage_flags="" | |
581 | ;; | |
582 | *) | |
583 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
584 | ;; | |
585 | esac], | |
586 | [coverage_flags=""]) | |
587 | AC_SUBST(coverage_flags) | |
588 | ||
589 | AC_ARG_ENABLE(gather-detailed-mem-stats, | |
590 | [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [], | |
591 | [enable_gather_detailed_mem_stats=no]) | |
592 | if test x$enable_gather_detailed_mem_stats = xyes ; then | |
593 | AC_DEFINE(GATHER_STATISTICS, 1, | |
594 | [Define to enable detailed memory allocation stats gathering.]) | |
595 | fi | |
596 | ||
597 | # ------------------------------- | |
598 | # Miscenalleous configure options | |
599 | # ------------------------------- | |
600 | ||
601 | # With stabs | |
602 | AC_ARG_WITH(stabs, | |
603 | [ --with-stabs arrange to use stabs instead of host debug format], | |
604 | stabs="$with_stabs", | |
605 | stabs=no) | |
606 | ||
607 | # Determine whether or not multilibs are enabled. | |
608 | AC_ARG_ENABLE(multilib, | |
609 | [ --enable-multilib enable library support for multiple ABIs], | |
610 | [], [enable_multilib=yes]) | |
611 | AC_SUBST(enable_multilib) | |
612 | ||
613 | # Enable __cxa_atexit for C++. | |
614 | AC_ARG_ENABLE(__cxa_atexit, | |
615 | [ --enable-__cxa_atexit enable __cxa_atexit for C++], | |
616 | [], []) | |
617 | ||
618 | # Enable threads | |
619 | # Pass with no value to take the default | |
620 | # Pass with a value to specify a thread package | |
621 | AC_ARG_ENABLE(threads, | |
622 | [ --enable-threads enable thread usage for target GCC | |
623 | --enable-threads=LIB use LIB thread package for target GCC],, | |
624 | [enable_threads='']) | |
625 | ||
626 | AC_ARG_ENABLE(objc-gc, | |
627 | [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
628 | the GNU Objective-C runtime], | |
629 | if test x$enable_objc_gc = xno; then | |
630 | objc_boehm_gc='' | |
631 | else | |
632 | objc_boehm_gc=1 | |
633 | fi, | |
634 | objc_boehm_gc='') | |
635 | ||
636 | AC_ARG_WITH(dwarf2, | |
637 | [ --with-dwarf2 force the default debug format to be DWARF 2], | |
638 | dwarf2="$with_dwarf2", | |
639 | dwarf2=no) | |
640 | ||
641 | AC_ARG_ENABLE(shared, | |
642 | [ --disable-shared don't provide a shared libgcc], | |
643 | [ | |
644 | case $enable_shared in | |
645 | yes | no) ;; | |
646 | *) | |
647 | enable_shared=no | |
648 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
649 | for pkg in $enableval; do | |
650 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
651 | enable_shared=yes | |
652 | fi | |
653 | done | |
654 | IFS="$ac_save_ifs" | |
655 | ;; | |
656 | esac | |
657 | ], [enable_shared=yes]) | |
658 | AC_SUBST(enable_shared) | |
659 | ||
660 | AC_ARG_WITH(sysroot, | |
661 | [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.], | |
662 | [ | |
663 | case ${with_sysroot} in | |
664 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; | |
665 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; | |
666 | esac | |
667 | ||
668 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
669 | CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)' | |
670 | ||
671 | if test "x$exec_prefix" = xNONE; then | |
672 | if test "x$prefix" = xNONE; then | |
673 | test_prefix=/usr/local | |
674 | else | |
675 | test_prefix=$prefix | |
676 | fi | |
677 | else | |
678 | test_prefix=$exec_prefix | |
679 | fi | |
680 | case ${TARGET_SYSTEM_ROOT} in | |
681 | "${test_prefix}"|"${test_prefix}/"*|\ | |
682 | '${exec_prefix}'|'${exec_prefix}/'*) | |
683 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" | |
684 | TARGET_SYSTEM_ROOT_DEFINE="$t" | |
685 | ;; | |
686 | esac | |
687 | ], [ | |
688 | TARGET_SYSTEM_ROOT= | |
689 | TARGET_SYSTEM_ROOT_DEFINE= | |
690 | CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' | |
691 | ]) | |
692 | AC_SUBST(TARGET_SYSTEM_ROOT) | |
693 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
694 | AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
695 | ||
696 | # Build with intermodule optimisations | |
697 | AC_ARG_ENABLE(intermodule, | |
698 | [ --enable-intermodule build the compiler in one step], | |
699 | [case ${enable_intermodule} in | |
700 | yes) onestep="-onestep";; | |
701 | *) onestep="";; | |
702 | esac], | |
703 | [onestep=""]) | |
704 | AC_SUBST(onestep) | |
705 | ||
706 | # Sanity check enable_languages in case someone does not run the toplevel | |
707 | # configure # script. | |
708 | AC_ARG_ENABLE(languages, | |
709 | [ --enable-languages=LIST specify which front-ends to build], | |
710 | [case ,${enable_languages}, in | |
711 | ,,|,yes,) | |
712 | # go safe -- we cannot be much sure without the toplevel | |
713 | # configure's | |
714 | # analysis of which target libs are present and usable | |
715 | enable_languages=c | |
716 | ;; | |
717 | *,all,*) | |
718 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
719 | ;; | |
720 | *,c,*) | |
721 | ;; | |
722 | *) | |
723 | enable_languages=c,${enable_languages} | |
724 | ;; | |
725 | esac], | |
726 | [enable_languages=c]) | |
727 | ||
728 | subdirs= | |
729 | for lang in ${srcdir}/*/config-lang.in | |
730 | do | |
731 | case $lang in | |
732 | # The odd quoting in the next line works around | |
733 | # an apparent bug in bash 1.12 on linux. | |
734 | changequote(,)dnl | |
735 | ${srcdir}/[*]/config-lang.in) ;; | |
736 | *) | |
737 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` | |
738 | if test "x$lang_alias" = x | |
739 | then | |
740 | echo "$lang doesn't set \$language." 1>&2 | |
741 | exit 1 | |
742 | fi | |
743 | case ",$enable_languages," in | |
744 | *,$lang_alias,*) | |
745 | subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;; | |
746 | esac | |
747 | ;; | |
748 | changequote([,])dnl | |
749 | esac | |
750 | done | |
751 | ||
752 | ||
753 | # ------------------------- | |
754 | # Checks for other programs | |
755 | # ------------------------- | |
756 | ||
757 | AC_PROG_MAKE_SET | |
758 | ||
759 | # Find some useful tools | |
760 | AC_PROG_AWK | |
761 | # We need awk to create options.c and options.h. | |
762 | # Bail out if it's missing. | |
763 | case ${AWK} in | |
764 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
765 | esac | |
766 | ||
767 | gcc_AC_PROG_LN_S | |
768 | ACX_PROG_LN($LN_S) | |
769 | AC_PROG_RANLIB | |
770 | case "${host}" in | |
771 | *-*-darwin*) | |
772 | # By default, the Darwin ranlib will not treat common symbols as | |
773 | # definitions when building the archive table of contents. Other | |
774 | # ranlibs do that; pass an option to the Darwin ranlib that makes | |
775 | # it behave similarly. | |
776 | ranlib_flags="-c" | |
777 | ;; | |
778 | *) | |
779 | ranlib_flags="" | |
780 | esac | |
781 | AC_SUBST(ranlib_flags) | |
782 | ||
783 | gcc_AC_PROG_INSTALL | |
784 | ||
785 | # See if cmp has --ignore-initial. | |
786 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
787 | ||
788 | # See if we have the mktemp command. | |
789 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
790 | ||
791 | MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing" | |
792 | ||
793 | # See if makeinfo has been installed and is modern enough | |
794 | # that we can use it. | |
795 | gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, | |
796 | [GNU texinfo.* \([0-9][0-9.]*\)], | |
797 | [4.[2-9]*]) | |
798 | if test $gcc_cv_prog_makeinfo_modern = no; then | |
799 | MAKEINFO="$MISSING makeinfo" | |
800 | AC_MSG_WARN([ | |
801 | *** Makeinfo is missing or too old. | |
802 | *** Info documentation will not be built.]) | |
803 | BUILD_INFO= | |
804 | else | |
805 | BUILD_INFO=info | |
806 | fi | |
807 | AC_SUBST(BUILD_INFO) | |
808 | ||
809 | # Is pod2man recent enough to regenerate manpages? | |
810 | AC_MSG_CHECKING([for recent Pod::Man]) | |
811 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then | |
812 | AC_MSG_RESULT(yes) | |
813 | GENERATED_MANPAGES=generated-manpages | |
814 | else | |
815 | AC_MSG_RESULT(no) | |
816 | GENERATED_MANPAGES= | |
817 | fi | |
818 | AC_SUBST(GENERATED_MANPAGES) | |
819 | ||
820 | # How about lex? | |
821 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
822 | dnl LEXLIB is not useful in gcc. | |
823 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) | |
824 | ||
825 | # Bison? | |
826 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) | |
827 | ||
828 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
829 | # check for build == host before using them. | |
830 | ||
831 | # NM | |
832 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ | |
833 | && test -d ../binutils ; then | |
834 | NM='$(objdir)/../binutils/nm-new' | |
835 | else | |
836 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
837 | fi | |
838 | ||
839 | # AR | |
840 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ | |
841 | && test -d ../binutils ; then | |
842 | AR='$(objdir)/../binutils/ar' | |
843 | else | |
844 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
845 | fi | |
846 | ||
847 | ||
848 | # -------------------- | |
849 | # Checks for C headers | |
850 | # -------------------- | |
851 | ||
852 | AC_MSG_CHECKING(for GNU C library) | |
853 | AC_CACHE_VAL(gcc_cv_glibc, | |
854 | [AC_TRY_COMPILE( | |
855 | [#include <features.h>],[ | |
856 | #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__) | |
857 | #error Not a GNU C library system | |
858 | #endif], | |
859 | [gcc_cv_glibc=yes], | |
860 | gcc_cv_glibc=no)]) | |
861 | AC_MSG_RESULT($gcc_cv_glibc) | |
862 | if test $gcc_cv_glibc = yes; then | |
863 | AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library]) | |
864 | fi | |
865 | ||
866 | # Need to reject headers which give warnings, so that the -Werror bootstrap | |
867 | # works later. *sigh* This needs to come before all header checks. | |
868 | AC_PROG_CPP_WERROR | |
869 | ||
870 | AC_HEADER_STDC | |
871 | AC_HEADER_TIME | |
872 | ACX_HEADER_STRING | |
873 | AC_HEADER_SYS_WAIT | |
874 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ | |
875 | fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \ | |
876 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ | |
877 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) | |
878 | ||
879 | # Check for thread headers. | |
880 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
881 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
882 | ||
883 | # These tests can't be done till we know if we have limits.h. | |
884 | gcc_AC_C_CHAR_BIT | |
885 | AC_C_BIGENDIAN_CROSS | |
886 | ||
887 | # -------- | |
888 | # UNSORTED | |
889 | # -------- | |
890 | ||
891 | # Stage specific cflags for build. | |
892 | stage1_cflags= | |
893 | case $build in | |
894 | vax-*-*) | |
895 | if test x$GCC = xyes | |
896 | then | |
897 | stage1_cflags="-Wa,-J" | |
898 | else | |
899 | stage1_cflags="-J" | |
900 | fi | |
901 | ;; | |
902 | powerpc-*-darwin*) | |
903 | # The spiffy cpp-precomp chokes on some legitimate constructs in GCC | |
904 | # sources; use -no-cpp-precomp to get to GNU cpp. | |
905 | # Apple's GCC has bugs in designated initializer handling, so disable | |
906 | # that too. | |
907 | stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0" | |
908 | ;; | |
909 | esac | |
910 | AC_SUBST(stage1_cflags) | |
911 | ||
912 | # These libraries may be used by collect2. | |
913 | # We may need a special search path to get them linked. | |
914 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
915 | [save_LIBS="$LIBS" | |
916 | for libs in '' -lld -lmld \ | |
917 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ | |
918 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
919 | do | |
920 | LIBS="$libs" | |
921 | AC_TRY_LINK_FUNC(ldopen, | |
922 | [gcc_cv_collect2_libs="$libs"; break]) | |
923 | done | |
924 | LIBS="$save_LIBS" | |
925 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
926 | case $gcc_cv_collect2_libs in | |
927 | "none required") ;; | |
928 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
929 | esac | |
930 | AC_SUBST(COLLECT2_LIBS) | |
931 | ||
932 | # When building Ada code on Alpha, we need exc_resume which is usually in | |
933 | # -lexc. So test for it. | |
934 | save_LIBS="$LIBS" | |
935 | LIBS= | |
936 | AC_SEARCH_LIBS(exc_resume, exc) | |
937 | GNAT_LIBEXC="$LIBS" | |
938 | LIBS="$save_LIBS" | |
939 | AC_SUBST(GNAT_LIBEXC) | |
940 | ||
941 | # Some systems put ldexp and frexp in libm instead of libc; assume | |
942 | # they're both in the same place. jcf-dump needs them. | |
943 | save_LIBS="$LIBS" | |
944 | LIBS= | |
945 | AC_SEARCH_LIBS(ldexp, m) | |
946 | LDEXP_LIB="$LIBS" | |
947 | LIBS="$save_LIBS" | |
948 | AC_SUBST(LDEXP_LIB) | |
949 | ||
950 | # Use <inttypes.h> only if it exists, | |
951 | # doesn't clash with <sys/types.h>, and declares intmax_t. | |
952 | AC_MSG_CHECKING(for inttypes.h) | |
953 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
954 | [AC_TRY_COMPILE( | |
955 | [#include <sys/types.h> | |
956 | #include <inttypes.h>], | |
957 | [intmax_t i = -1;], | |
958 | [gcc_cv_header_inttypes_h=yes], | |
959 | gcc_cv_header_inttypes_h=no)]) | |
960 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) | |
961 | if test $gcc_cv_header_inttypes_h = yes; then | |
962 | AC_DEFINE(HAVE_INTTYPES_H, 1, | |
963 | [Define if you have a working <inttypes.h> header file.]) | |
964 | fi | |
965 | ||
966 | dnl Disabled until we have a complete test for buggy enum bitfields. | |
967 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
968 | ||
969 | AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \ | |
970 | sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \ | |
971 | fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \ | |
972 | scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \ | |
973 | setlocale) | |
974 | ||
975 | if test x$ac_cv_func_mbstowcs = xyes; then | |
976 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
977 | [ AC_TRY_RUN([#include <stdlib.h> | |
978 | int main() | |
979 | { | |
980 | mbstowcs(0, "", 0); | |
981 | return 0; | |
982 | }], | |
983 | gcc_cv_func_mbstowcs_works=yes, | |
984 | gcc_cv_func_mbstowcs_works=no, | |
985 | gcc_cv_func_mbstowcs_works=yes)]) | |
986 | if test x$gcc_cv_func_mbstowcs_works = xyes; then | |
987 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
988 | [Define this macro if mbstowcs does not crash when its | |
989 | first argument is NULL.]) | |
990 | fi | |
991 | fi | |
992 | ||
993 | AC_CHECK_TYPE(ssize_t, int) | |
994 | ||
995 | # Try to determine the array type of the second argument of getgroups | |
996 | # for the target system (int or gid_t). | |
997 | AC_TYPE_GETGROUPS | |
998 | if test "${target}" = "${build}"; then | |
999 | TARGET_GETGROUPS_T=$ac_cv_type_getgroups | |
1000 | else | |
1001 | case "${target}" in | |
1002 | # This condition may need some tweaking. It should include all | |
1003 | # targets where the array type of the second argument of getgroups | |
1004 | # is int and the type of gid_t is not equivalent to int. | |
1005 | *-*-sunos* | *-*-ultrix*) | |
1006 | TARGET_GETGROUPS_T=int | |
1007 | ;; | |
1008 | *) | |
1009 | TARGET_GETGROUPS_T=gid_t | |
1010 | ;; | |
1011 | esac | |
1012 | fi | |
1013 | AC_SUBST(TARGET_GETGROUPS_T) | |
1014 | ||
1015 | gcc_AC_FUNC_PRINTF_PTR | |
1016 | gcc_AC_FUNC_MMAP_BLACKLIST | |
1017 | ||
1018 | case "${host}" in | |
1019 | *-*-*vms*) | |
1020 | # Under VMS, vfork works very differently than on Unix. The standard test | |
1021 | # won't work, and it isn't easily adaptable. It makes more sense to | |
1022 | # just force it. | |
1023 | ac_cv_func_vfork_works=yes | |
1024 | ;; | |
1025 | esac | |
1026 | AC_FUNC_VFORK | |
1027 | ||
1028 | AM_ICONV | |
1029 | # Until we have in-tree GNU iconv: | |
1030 | LIBICONV_DEP= | |
1031 | AC_SUBST(LIBICONV_DEP) | |
1032 | ||
1033 | AM_LC_MESSAGES | |
1034 | ||
1035 | AM_LANGINFO_CODESET | |
1036 | ||
1037 | # We will need to find libiberty.h and ansidecl.h | |
1038 | saved_CFLAGS="$CFLAGS" | |
1039 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include" | |
1040 | gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \ | |
1041 | strsignal putc_unlocked fputs_unlocked fwrite_unlocked \ | |
1042 | fprintf_unlocked strstr errno snprintf vasprintf \ | |
1043 | malloc realloc calloc free basename getopt clock getpagesize, , ,[ | |
1044 | #include "ansidecl.h" | |
1045 | #include "system.h"]) | |
1046 | ||
1047 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ | |
1048 | #include "ansidecl.h" | |
1049 | #include "system.h" | |
1050 | #ifdef HAVE_SYS_RESOURCE_H | |
1051 | #include <sys/resource.h> | |
1052 | #endif | |
1053 | ]) | |
1054 | ||
1055 | AC_TRY_COMPILE([ | |
1056 | #include "ansidecl.h" | |
1057 | #include "system.h" | |
1058 | #ifdef HAVE_SYS_RESOURCE_H | |
1059 | #include <sys/resource.h> | |
1060 | #endif | |
1061 | ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long], | |
1062 | [Define to \`long' if <sys/resource.h> doesn't define.])]) | |
1063 | ||
1064 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible | |
1065 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1066 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1067 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
1068 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ | |
1069 | #include "ansidecl.h" | |
1070 | #include "system.h" | |
1071 | #ifdef HAVE_LDFCN_H | |
1072 | #undef FREAD | |
1073 | #undef FWRITE | |
1074 | #include <ldfcn.h> | |
1075 | #endif | |
1076 | ]) | |
1077 | ||
1078 | gcc_AC_CHECK_DECLS(times, , ,[ | |
1079 | #include "ansidecl.h" | |
1080 | #include "system.h" | |
1081 | #ifdef HAVE_SYS_TIMES_H | |
1082 | #include <sys/times.h> | |
1083 | #endif | |
1084 | ]) | |
1085 | ||
1086 | # More time-related stuff. | |
1087 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
1088 | AC_TRY_COMPILE([ | |
1089 | #include "ansidecl.h" | |
1090 | #include "system.h" | |
1091 | #ifdef HAVE_SYS_TIMES_H | |
1092 | #include <sys/times.h> | |
1093 | #endif | |
1094 | ], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)]) | |
1095 | if test $ac_cv_struct_tms = yes; then | |
1096 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1097 | [Define if <sys/times.h> defines struct tms.]) | |
1098 | fi | |
1099 | ||
1100 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1101 | # revisit after autoconf 2.50. | |
1102 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
1103 | AC_TRY_COMPILE([ | |
1104 | #include "ansidecl.h" | |
1105 | #include "system.h" | |
1106 | ], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)]) | |
1107 | if test $gcc_cv_type_clock_t = yes; then | |
1108 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1109 | [Define if <time.h> defines clock_t.]) | |
1110 | fi | |
1111 | ||
1112 | # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. | |
1113 | CFLAGS="$saved_CFLAGS" | |
1114 | ||
1115 | gcc_AC_INITFINI_ARRAY | |
1116 | ||
1117 | # mkdir takes a single argument on some systems. | |
1118 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG | |
1119 | ||
1120 | # File extensions | |
1121 | manext='.1' | |
1122 | objext='.o' | |
1123 | AC_SUBST(manext) | |
1124 | AC_SUBST(objext) | |
1125 | ||
1126 | # With Setjmp/Longjmp based exception handling. | |
1127 | AC_ARG_ENABLE(sjlj-exceptions, | |
1128 | [ --enable-sjlj-exceptions | |
1129 | arrange to use setjmp/longjmp exception handling], | |
1130 | [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1131 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1132 | [Define 0/1 to force the choice for exception handling model.])]) | |
1133 | ||
1134 | # For platforms with the unwind ABI which includes an unwind library, | |
1135 | # libunwind, we can choose to use the system libunwind. | |
1136 | AC_ARG_WITH(system-libunwind, | |
1137 | [ --with-system-libunwind use installed libunwind]) | |
1138 | ||
1139 | # -------------------------------------------------------- | |
1140 | # Build, host, and target specific configuration fragments | |
1141 | # -------------------------------------------------------- | |
1142 | ||
1143 | # Collect build-machine-specific information. | |
1144 | . ${srcdir}/config.build | |
1145 | ||
1146 | # Collect host-machine-specific information. | |
1147 | . ${srcdir}/config.host | |
1148 | ||
1149 | target_gtfiles= | |
1150 | ||
1151 | # Collect target-machine-specific information. | |
1152 | . ${srcdir}/config.gcc | |
1153 | ||
1154 | extra_objs="${host_extra_objs} ${extra_objs}" | |
1155 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" | |
1156 | ||
1157 | # Default the target-machine variables that were not explicitly set. | |
1158 | if test x"$tm_file" = x | |
1159 | then tm_file=$cpu_type/$cpu_type.h; fi | |
1160 | ||
1161 | if test x"$extra_headers" = x | |
1162 | then extra_headers=; fi | |
1163 | ||
1164 | if test x$md_file = x | |
1165 | then md_file=$cpu_type/$cpu_type.md; fi | |
1166 | ||
1167 | if test x$out_file = x | |
1168 | then out_file=$cpu_type/$cpu_type.c; fi | |
1169 | ||
1170 | if test x"$tmake_file" = x | |
1171 | then tmake_file=$cpu_type/t-$cpu_type | |
1172 | fi | |
1173 | ||
1174 | if test x"$dwarf2" = xyes | |
1175 | then tm_file="$tm_file tm-dwarf2.h" | |
1176 | fi | |
1177 | ||
1178 | # Say what files are being used for the output code and MD file. | |
1179 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." | |
1180 | echo "Using \`$srcdir/config/$md_file' as machine description file." | |
1181 | ||
1182 | # If any of the xm_file variables contain nonexistent files, warn | |
1183 | # about them and drop them. | |
1184 | ||
1185 | bx= | |
1186 | for x in $build_xm_file; do | |
1187 | if test -f $srcdir/config/$x | |
1188 | then bx="$bx $x" | |
1189 | else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1190 | fi | |
1191 | done | |
1192 | build_xm_file="$bx" | |
1193 | ||
1194 | hx= | |
1195 | for x in $host_xm_file; do | |
1196 | if test -f $srcdir/config/$x | |
1197 | then hx="$hx $x" | |
1198 | else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1199 | fi | |
1200 | done | |
1201 | host_xm_file="$hx" | |
1202 | ||
1203 | tx= | |
1204 | for x in $xm_file; do | |
1205 | if test -f $srcdir/config/$x | |
1206 | then tx="$tx $x" | |
1207 | else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1208 | fi | |
1209 | done | |
1210 | xm_file="$tx" | |
1211 | ||
1212 | count=a | |
1213 | for f in $tm_file; do | |
1214 | count=${count}x | |
1215 | done | |
1216 | if test $count = ax; then | |
1217 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." | |
1218 | else | |
1219 | echo "Using the following target machine macro files:" | |
1220 | for f in $tm_file; do | |
1221 | echo " $srcdir/config/$f" | |
1222 | done | |
1223 | fi | |
1224 | ||
1225 | if test x$need_64bit_hwint = xyes; then | |
1226 | AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, | |
1227 | [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) | |
1228 | fi | |
1229 | ||
1230 | if test x$use_long_long_for_widest_fast_int = xyes; then | |
1231 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1232 | [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still | |
1233 | efficiently supported by the host hardware.]) | |
1234 | fi | |
1235 | ||
1236 | count=a | |
1237 | for f in $host_xm_file; do | |
1238 | count=${count}x | |
1239 | done | |
1240 | if test $count = a; then | |
1241 | : | |
1242 | elif test $count = ax; then | |
1243 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." | |
1244 | else | |
1245 | echo "Using the following host machine macro files:" | |
1246 | for f in $host_xm_file; do | |
1247 | echo " $srcdir/config/$f" | |
1248 | done | |
1249 | fi | |
1250 | echo "Using ${out_host_hook_obj} for host machine hooks." | |
1251 | ||
1252 | if test "$host_xm_file" != "$build_xm_file"; then | |
1253 | count=a | |
1254 | for f in $build_xm_file; do | |
1255 | count=${count}x | |
1256 | done | |
1257 | if test $count = a; then | |
1258 | : | |
1259 | elif test $count = ax; then | |
1260 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." | |
1261 | else | |
1262 | echo "Using the following build machine macro files:" | |
1263 | for f in $build_xm_file; do | |
1264 | echo " $srcdir/config/$f" | |
1265 | done | |
1266 | fi | |
1267 | fi | |
1268 | ||
1269 | # --------- | |
1270 | # Threading | |
1271 | # --------- | |
1272 | ||
1273 | # Check if a valid thread package | |
1274 | case ${enable_threads} in | |
1275 | "" | no) | |
1276 | # No threads | |
1277 | target_thread_file='single' | |
1278 | ;; | |
1279 | yes) | |
1280 | # default | |
1281 | target_thread_file='single' | |
1282 | ;; | |
1283 | aix | dce | gnat | irix | posix | posix95 | rtems | \ | |
1284 | single | solaris | vxworks | win32 ) | |
1285 | target_thread_file=${enable_threads} | |
1286 | ;; | |
1287 | *) | |
1288 | echo "${enable_threads} is an unknown thread package" 1>&2 | |
1289 | exit 1 | |
1290 | ;; | |
1291 | esac | |
1292 | ||
1293 | if test x${thread_file} = x; then | |
1294 | # No thread file set by target-specific clauses in config.gcc, | |
1295 | # so use file chosen by default logic above | |
1296 | thread_file=${target_thread_file} | |
1297 | fi | |
1298 | ||
1299 | # Make gthr-default.h if we have a thread file. | |
1300 | gthread_flags= | |
1301 | if test $thread_file != single; then | |
1302 | rm -f gthr-default.h | |
1303 | echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h | |
1304 | gthread_flags=-DHAVE_GTHR_DEFAULT | |
1305 | fi | |
1306 | AC_SUBST(gthread_flags) | |
1307 | ||
1308 | # -------- | |
1309 | # UNSORTED | |
1310 | # -------- | |
1311 | ||
1312 | use_cxa_atexit=no | |
1313 | if test x$enable___cxa_atexit = xyes || \ | |
1314 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
1315 | if test x$host = x$target; then | |
1316 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1317 | [echo "__cxa_atexit can't be enabled on this target"]) | |
1318 | else | |
1319 | # We can't check for __cxa_atexit when building a cross, so assume | |
1320 | # it is available | |
1321 | use_cxa_atexit=yes | |
1322 | fi | |
1323 | if test x$use_cxa_atexit = xyes; then | |
1324 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1, | |
1325 | [Define if you want to use __cxa_atexit, rather than atexit, to | |
1326 | register C++ destructors for local statics and global objects. | |
1327 | This is essential for fully standards-compliant handling of | |
1328 | destructors, but requires __cxa_atexit in libc.]) | |
1329 | fi | |
1330 | fi | |
1331 | ||
1332 | # Look for a file containing extra machine modes. | |
1333 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then | |
1334 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
1335 | AC_SUBST(extra_modes_file) | |
1336 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", | |
1337 | [Define to the name of a file containing a list of extra machine modes | |
1338 | for this architecture.]) | |
1339 | fi | |
1340 | ||
1341 | # Convert extra_options into a form suitable for Makefile use. | |
1342 | extra_opt_files= | |
1343 | for f in $extra_options; do | |
1344 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
1345 | done | |
1346 | AC_SUBST(extra_opt_files) | |
1347 | ||
1348 | # auto-host.h is the file containing items generated by autoconf and is | |
1349 | # the first file included by config.h. | |
1350 | # If host=build, it is correct to have bconfig include auto-host.h | |
1351 | # as well. If host!=build, we are in error and need to do more | |
1352 | # work to find out the build config parameters. | |
1353 | if test x$host = x$build | |
1354 | then | |
1355 | build_auto=auto-host.h | |
1356 | else | |
1357 | # We create a subdir, then run autoconf in the subdir. | |
1358 | # To prevent recursion we set host and build for the new | |
1359 | # invocation of configure to the build for this invocation | |
1360 | # of configure. | |
1361 | tempdir=build.$$ | |
1362 | rm -rf $tempdir | |
1363 | mkdir $tempdir | |
1364 | cd $tempdir | |
1365 | case ${srcdir} in | |
1366 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; | |
1367 | *) realsrcdir=../${srcdir};; | |
1368 | esac | |
1369 | saved_CFLAGS="${CFLAGS}" | |
1370 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ | |
1371 | ${realsrcdir}/configure \ | |
1372 | --enable-languages=${enable_languages-all} \ | |
1373 | --target=$target_alias --host=$build_alias --build=$build_alias | |
1374 | CFLAGS="${saved_CFLAGS}" | |
1375 | ||
1376 | # We just finished tests for the build machine, so rename | |
1377 | # the file auto-build.h in the gcc directory. | |
1378 | mv auto-host.h ../auto-build.h | |
1379 | cd .. | |
1380 | rm -rf $tempdir | |
1381 | build_auto=auto-build.h | |
1382 | fi | |
1383 | AC_SUBST(build_subdir) | |
1384 | ||
1385 | tm_file="${tm_file} defaults.h" | |
1386 | tm_p_file="${tm_p_file} tm-preds.h" | |
1387 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" | |
1388 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
1389 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. | |
1390 | # put this back in temporarily. | |
1391 | xm_file="ansidecl.h ${xm_file}" | |
1392 | ||
1393 | # -------- | |
1394 | # UNSORTED | |
1395 | # -------- | |
1396 | ||
1397 | changequote(,)dnl | |
1398 | # Compile in configure arguments. | |
1399 | if test -f configargs.h ; then | |
1400 | # Being re-configured. | |
1401 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` | |
1402 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1403 | else | |
1404 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1405 | fi | |
1406 | ||
1407 | # Double all backslashes and backslash all quotes to turn | |
1408 | # gcc_config_arguments into a C string. | |
1409 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1410 | $gcc_config_arguments | |
1411 | EOF | |
1412 | gcc_config_arguments_str=`cat conftest.out` | |
1413 | rm -f conftest.out | |
1414 | ||
1415 | cat > configargs.h <<EOF | |
1416 | /* Generated automatically. */ | |
1417 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; | |
1418 | static const char thread_model[] = "$thread_file"; | |
1419 | ||
1420 | static const struct { | |
1421 | const char *name, *value; | |
1422 | } configure_default_options[] = $configure_default_options; | |
1423 | EOF | |
1424 | changequote([,])dnl | |
1425 | ||
1426 | # Internationalization | |
1427 | ZW_GNU_GETTEXT_SISTER_DIR | |
1428 | ||
1429 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get | |
1430 | # -liconv on the link line twice. | |
1431 | case "$LIBINTL" in *$LIBICONV*) | |
1432 | LIBICONV= ;; | |
1433 | esac | |
1434 | ||
1435 | # Windows32 Registry support for specifying GCC installation paths. | |
1436 | AC_ARG_ENABLE(win32-registry, | |
1437 | [ --disable-win32-registry | |
1438 | disable lookup of installation paths in the | |
1439 | Registry on Windows hosts | |
1440 | --enable-win32-registry enable registry lookup (default) | |
1441 | --enable-win32-registry=KEY | |
1442 | use KEY instead of GCC version as the last portion | |
1443 | of the registry key],,) | |
1444 | ||
1445 | case $host_os in | |
1446 | win32 | pe | cygwin* | mingw32* | uwin*) | |
1447 | if test "x$enable_win32_registry" != xno; then | |
1448 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1449 | fi | |
1450 | ||
1451 | if test "x$enable_win32_registry" != xno; then | |
1452 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1453 | [Define to 1 if installation paths should be looked up in the Windows | |
1454 | Registry. Ignored on non-Windows hosts.]) | |
1455 | ||
1456 | if test "x$enable_win32_registry" != xyes \ | |
1457 | && test "x$enable_win32_registry" != x; then | |
1458 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1459 | [Define to be the last component of the Windows registry key under which | |
1460 | to look for installation paths. The full key used will be | |
1461 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1462 | The default is the GCC version number.]) | |
1463 | fi | |
1464 | fi | |
1465 | ;; | |
1466 | esac | |
1467 | ||
1468 | # Get an absolute path to the GCC top-level source directory | |
1469 | holddir=`${PWDCMD-pwd}` | |
1470 | cd $srcdir | |
1471 | topdir=`${PWDCMD-pwd}` | |
1472 | cd $holddir | |
1473 | ||
1474 | # Conditionalize the makefile for this host machine. | |
1475 | xmake_file= | |
1476 | for f in ${host_xmake_file} | |
1477 | do | |
1478 | if test -f ${srcdir}/config/$f | |
1479 | then | |
1480 | xmake_file="${xmake_file} \$(srcdir)/config/$f" | |
1481 | fi | |
1482 | done | |
1483 | ||
1484 | # Conditionalize the makefile for this target machine. | |
1485 | tmake_file_= | |
1486 | for f in ${tmake_file} | |
1487 | do | |
1488 | if test -f ${srcdir}/config/$f | |
1489 | then | |
1490 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" | |
1491 | fi | |
1492 | done | |
1493 | tmake_file="${tmake_file_}" | |
1494 | ||
1495 | # If the host doesn't support symlinks, modify CC in | |
1496 | # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works. | |
1497 | # Otherwise, we can use "CC=$(CC)". | |
1498 | rm -f symtest.tem | |
1499 | case "$LN_S" in | |
1500 | *-s*) | |
1501 | cc_set_by_configure="\$(CC)" | |
1502 | quoted_cc_set_by_configure="\$(CC)" | |
1503 | stage_prefix_set_by_configure="\$(STAGE_PREFIX)" | |
1504 | quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)" | |
1505 | ;; | |
1506 | *) | |
1507 | cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`" | |
1508 | quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`" | |
1509 | stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`" | |
1510 | quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`" | |
1511 | ;; | |
1512 | esac | |
1513 | ||
1514 | # This is a terrible hack which will go away some day. | |
1515 | host_cc_for_libada=${CC} | |
1516 | AC_SUBST(host_cc_for_libada) | |
1517 | ||
1518 | out_object_file=`basename $out_file .c`.o | |
1519 | ||
1520 | tm_file_list="options.h" | |
1521 | tm_include_list="options.h" | |
1522 | for f in $tm_file; do | |
1523 | case $f in | |
1524 | defaults.h ) | |
1525 | tm_file_list="${tm_file_list} \$(srcdir)/$f" | |
1526 | tm_include_list="${tm_include_list} $f" | |
1527 | ;; | |
1528 | * ) | |
1529 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1530 | tm_include_list="${tm_include_list} config/$f" | |
1531 | ;; | |
1532 | esac | |
1533 | done | |
1534 | ||
1535 | tm_p_file_list= | |
1536 | tm_p_include_list= | |
1537 | for f in $tm_p_file; do | |
1538 | case $f in | |
1539 | tm-preds.h ) | |
1540 | tm_p_file_list="${tm_p_file_list} $f" | |
1541 | tm_p_include_list="${tm_p_include_list} $f" | |
1542 | ;; | |
1543 | * ) | |
1544 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1545 | tm_p_include_list="${tm_p_include_list} config/$f" | |
1546 | esac | |
1547 | done | |
1548 | ||
1549 | xm_file_list= | |
1550 | xm_include_list= | |
1551 | for f in $xm_file; do | |
1552 | case $f in | |
1553 | ansidecl.h ) | |
1554 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
1555 | xm_include_list="${xm_include_list} $f" | |
1556 | ;; | |
1557 | auto-host.h ) | |
1558 | xm_file_list="${xm_file_list} $f" | |
1559 | xm_include_list="${xm_include_list} $f" | |
1560 | ;; | |
1561 | * ) | |
1562 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
1563 | xm_include_list="${xm_include_list} config/$f" | |
1564 | ;; | |
1565 | esac | |
1566 | done | |
1567 | ||
1568 | host_xm_file_list= | |
1569 | host_xm_include_list= | |
1570 | for f in $host_xm_file; do | |
1571 | case $f in | |
1572 | ansidecl.h ) | |
1573 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" | |
1574 | host_xm_include_list="${host_xm_include_list} $f" | |
1575 | ;; | |
1576 | auto-host.h ) | |
1577 | host_xm_file_list="${host_xm_file_list} $f" | |
1578 | host_xm_include_list="${host_xm_include_list} $f" | |
1579 | ;; | |
1580 | * ) | |
1581 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
1582 | host_xm_include_list="${host_xm_include_list} config/$f" | |
1583 | ;; | |
1584 | esac | |
1585 | done | |
1586 | ||
1587 | build_xm_file_list= | |
1588 | for f in $build_xm_file; do | |
1589 | case $f in | |
1590 | ansidecl.h ) | |
1591 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" | |
1592 | build_xm_include_list="${build_xm_include_list} $f" | |
1593 | ;; | |
1594 | auto-build.h | auto-host.h ) | |
1595 | build_xm_file_list="${build_xm_file_list} $f" | |
1596 | build_xm_include_list="${build_xm_include_list} $f" | |
1597 | ;; | |
1598 | * ) | |
1599 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
1600 | build_xm_include_list="${build_xm_include_list} config/$f" | |
1601 | ;; | |
1602 | esac | |
1603 | done | |
1604 | ||
1605 | # Define macro CROSS_COMPILE in compilation if this is a cross-compiler. | |
1606 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. | |
1607 | CROSS= AC_SUBST(CROSS) | |
1608 | ALL=all.internal AC_SUBST(ALL) | |
1609 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
1610 | if test x$host != x$target | |
1611 | then | |
1612 | CROSS="-DCROSS_COMPILE" | |
1613 | ALL=all.cross | |
1614 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
1615 | case "$host","$target" in | |
1616 | # Darwin crosses can use the host system's libraries and headers, | |
1617 | # because of the fat library support. Of course, it must be the | |
1618 | # same version of Darwin on both sides. Allow the user to | |
1619 | # just say --target=foo-darwin without a version number to mean | |
1620 | # "the version on this system". | |
1621 | *-*-darwin*,*-*-darwin*) | |
1622 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
1623 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
1624 | if test $hostos = $targetos -o $targetos = darwin ; then | |
1625 | CROSS= | |
1626 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' | |
1627 | with_headers=yes | |
1628 | fi | |
1629 | ;; | |
1630 | ||
1631 | i?86-*-*,x86_64-*-* \ | |
1632 | | powerpc*-*-*,powerpc64*-*-*) | |
1633 | CROSS="$CROSS -DNATIVE_CROSS" ;; | |
1634 | esac | |
1635 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
1636 | # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR) | |
1637 | SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)' | |
1638 | fi | |
1639 | ||
1640 | # If this is a cross-compiler that does not | |
1641 | # have its own set of headers then define | |
1642 | # inhibit_libc | |
1643 | ||
1644 | # If this is using newlib, without having the headers available now, | |
1645 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
1646 | # This prevents libgcc2 from containing any code which requires libc | |
1647 | # support. | |
1648 | inhibit_libc= | |
1649 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || | |
1650 | test x$with_newlib = xyes ; } && | |
1651 | { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then | |
1652 | inhibit_libc=-Dinhibit_libc | |
1653 | fi | |
1654 | AC_SUBST(inhibit_libc) | |
1655 | ||
1656 | # When building gcc with a cross-compiler, we need to adjust things so | |
1657 | # that the generator programs are still built with the native compiler. | |
1658 | # Also, we cannot run fixincludes or fix-header. | |
1659 | ||
1660 | # These are the normal (build=host) settings: | |
1661 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) | |
1662 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) | |
1663 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) | |
1664 | ||
1665 | # Possibly disable fixproto, on a per-target basis. | |
1666 | case ${use_fixproto} in | |
1667 | no) | |
1668 | STMP_FIXPROTO= | |
1669 | ;; | |
1670 | yes) | |
1671 | STMP_FIXPROTO=stmp-fixproto | |
1672 | ;; | |
1673 | esac | |
1674 | AC_SUBST(STMP_FIXPROTO) | |
1675 | ||
1676 | # And these apply if build != host, or we are generating coverage data | |
1677 | if test x$build != x$host || test "x$coverage_flags" != x | |
1678 | then | |
1679 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' | |
1680 | ||
1681 | if test "x$TARGET_SYSTEM_ROOT" = x; then | |
1682 | if [ "x$STMP_FIXPROTO" != x ] ; then | |
1683 | STMP_FIXPROTO=stmp-install-fixproto | |
1684 | fi | |
1685 | fi | |
1686 | fi | |
1687 | ||
1688 | # Expand extra_headers to include complete path. | |
1689 | # This substitutes for lots of t-* files. | |
1690 | extra_headers_list= | |
1691 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. | |
1692 | for file in ${extra_headers} ; do | |
1693 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
1694 | done | |
1695 | ||
1696 | # Define collect2 in Makefile. | |
1697 | case $host_can_use_collect2 in | |
1698 | no) collect2= ;; | |
1699 | *) collect2='collect2$(exeext)' ;; | |
1700 | esac | |
1701 | AC_SUBST([collect2]) | |
1702 | ||
1703 | # Add a definition of USE_COLLECT2 if system wants one. | |
1704 | case $use_collect2 in | |
1705 | no) use_collect2= ;; | |
1706 | "") ;; | |
1707 | *) | |
1708 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
1709 | xm_defines="${xm_defines} USE_COLLECT2" | |
1710 | case $host_can_use_collect2 in | |
1711 | no) | |
1712 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
1713 | ;; | |
1714 | esac | |
1715 | ;; | |
1716 | esac | |
1717 | ||
1718 | # --------------------------- | |
1719 | # Assembler & linker features | |
1720 | # --------------------------- | |
1721 | ||
1722 | # Identify the assembler which will work hand-in-glove with the newly | |
1723 | # built GCC, so that we can examine its features. This is the assembler | |
1724 | # which will be driven by the driver program. | |
1725 | # | |
1726 | # If build != host, and we aren't building gas in-tree, we identify a | |
1727 | # build->target assembler and hope that it will have the same features | |
1728 | # as the host->target assembler we'll be using. | |
1729 | AC_MSG_CHECKING(what assembler to use) | |
1730 | in_tree_gas=no | |
1731 | gcc_cv_as= | |
1732 | gcc_cv_gas_major_version= | |
1733 | gcc_cv_gas_minor_version= | |
1734 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas | |
1735 | if test -x "$DEFAULT_ASSEMBLER"; then | |
1736 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
1737 | elif test -x as$build_exeext; then | |
1738 | # Build using assembler in the current directory. | |
1739 | gcc_cv_as=./as$build_exeext | |
1740 | elif test -f $gcc_cv_as_gas_srcdir/configure.in \ | |
1741 | && test -f ../gas/Makefile \ | |
1742 | && test x$build = x$host; then | |
1743 | # Single tree build which includes gas. We want to prefer it | |
1744 | # over whatever linker top-level may have detected, since | |
1745 | # we'll use what we're building after installation anyway. | |
1746 | in_tree_gas=yes | |
1747 | _gcc_COMPUTE_GAS_VERSION | |
1748 | rm -f as$build_exeext | |
1749 | $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null | |
1750 | in_tree_gas_is_elf=no | |
1751 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
1752 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
1753 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
1754 | then | |
1755 | in_tree_gas_is_elf=yes | |
1756 | fi | |
1757 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
1758 | elif test -x "$AS_FOR_TARGET"; then | |
1759 | gcc_cv_as="$AS_FOR_TARGET" | |
1760 | elif test -x "$AS" && test x$host = x$target; then | |
1761 | gcc_cv_as="$AS" | |
1762 | fi | |
1763 | ||
1764 | gcc_version=`cat $srcdir/BASE-VER` | |
1765 | ||
1766 | if test "x$gcc_cv_as" = x; then | |
1767 | # Search the same directories that the installed compiler will | |
1768 | # search. Else we may find the wrong assembler and lose. If we | |
1769 | # do not find a suitable assembler binary, then try the user's | |
1770 | # path. | |
1771 | # | |
1772 | # Also note we have to check MD_EXEC_PREFIX before checking the | |
1773 | # user's path. Unfortunately, there is no good way to get at the | |
1774 | # value of MD_EXEC_PREFIX here. So we do a brute force search | |
1775 | # through all the known MD_EXEC_PREFIX values. Ugh. This needs | |
1776 | # to be fixed as part of the make/configure rewrite too. | |
1777 | ||
1778 | if test "x$exec_prefix" = xNONE; then | |
1779 | if test "x$prefix" = xNONE; then | |
1780 | test_prefix=/usr/local | |
1781 | else | |
1782 | test_prefix=$prefix | |
1783 | fi | |
1784 | else | |
1785 | test_prefix=$exec_prefix | |
1786 | fi | |
1787 | ||
1788 | # If the loop below does not find an assembler, then use whatever | |
1789 | # one we can find in the users's path. We are looking for a | |
1790 | # ${build} -> ${target} assembler. | |
1791 | if test "x$program_prefix" != xNONE; then | |
1792 | gcc_cv_as=${program_prefix}as$build_exeext | |
1793 | elif test x$build != x$host && test x$build != x$target; then | |
1794 | gcc_cv_as=${target_noncanonical}-as$build_exeext | |
1795 | else | |
1796 | gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext | |
1797 | fi | |
1798 | ||
1799 | if test x$host = x$build; then | |
1800 | test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \ | |
1801 | $test_prefix/libexec/gcc/$target_noncanonical \ | |
1802 | /usr/lib/gcc/$target_noncanonical/$gcc_version \ | |
1803 | /usr/lib/gcc/$target_noncanonical \ | |
1804 | $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \ | |
1805 | $test_prefix/$target_noncanonical/bin" | |
1806 | else | |
1807 | test_dirs= | |
1808 | fi | |
1809 | ||
1810 | if test x$build = x$target; then | |
1811 | test_dirs="$test_dirs \ | |
1812 | /usr/libexec \ | |
1813 | /usr/ccs/gcc \ | |
1814 | /usr/ccs/bin \ | |
1815 | /udk/usr/ccs/bin \ | |
1816 | /bsd43/usr/lib/cmplrs/cc \ | |
1817 | /usr/cross64/usr/bin \ | |
1818 | /usr/lib/cmplrs/cc \ | |
1819 | /sysv/usr/lib/cmplrs/cc \ | |
1820 | /svr4/usr/lib/cmplrs/cc \ | |
1821 | /usr/bin" | |
1822 | fi | |
1823 | ||
1824 | for dir in $test_dirs; do | |
1825 | if test -x $dir/as$build_exeext; then | |
1826 | gcc_cv_as=$dir/as$build_exeext | |
1827 | break; | |
1828 | fi | |
1829 | done | |
1830 | fi | |
1831 | case $in_tree_gas in | |
1832 | yes) | |
1833 | AC_MSG_RESULT("newly built gas") | |
1834 | ;; | |
1835 | no) | |
1836 | AC_MSG_RESULT($gcc_cv_as) | |
1837 | ;; | |
1838 | esac | |
1839 | ||
1840 | # Identify the linker which will work hand-in-glove with the newly | |
1841 | # built GCC, so that we can examine its features. This is the linker | |
1842 | # which will be driven by the driver program. | |
1843 | # | |
1844 | # If build != host, and we aren't building gas in-tree, we identify a | |
1845 | # build->target linker and hope that it will have the same features | |
1846 | # as the host->target linker we'll be using. | |
1847 | AC_MSG_CHECKING(what linker to use) | |
1848 | in_tree_ld=no | |
1849 | gcc_cv_ld= | |
1850 | gcc_cv_gld_major_version= | |
1851 | gcc_cv_gld_minor_version= | |
1852 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
1853 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
1854 | if test -x "$DEFAULT_LINKER"; then | |
1855 | gcc_cv_ld="$DEFAULT_LINKER" | |
1856 | elif test -x collect-ld$build_exeext; then | |
1857 | # Build using linker in the current directory. | |
1858 | gcc_cv_ld=./collect-ld$build_exeext | |
1859 | elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ | |
1860 | && test -f ../ld/Makefile \ | |
1861 | && test x$build = x$host; then | |
1862 | # Single tree build which includes ld. We want to prefer it | |
1863 | # over whatever linker top-level may have detected, since | |
1864 | # we'll use what we're building after installation anyway. | |
1865 | in_tree_ld=yes | |
1866 | in_tree_ld_is_elf=no | |
1867 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
1868 | || grep 'EMUL = .*linux' ../ld/Makefile \ | |
1869 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
1870 | in_tree_ld_is_elf=yes | |
1871 | fi | |
1872 | for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in | |
1873 | do | |
1874 | changequote(,)dnl | |
1875 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f` | |
1876 | changequote([,])dnl | |
1877 | if test x$gcc_cv_gld_version != x; then | |
1878 | break | |
1879 | fi | |
1880 | done | |
1881 | changequote(,)dnl | |
1882 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` | |
1883 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
1884 | changequote([,])dnl | |
1885 | rm -f collect-ld$build_exeext | |
1886 | $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null | |
1887 | elif test -x "$LD_FOR_TARGET"; then | |
1888 | gcc_cv_ld="$LD_FOR_TARGET" | |
1889 | elif test -x "$LD" && test x$host = x$target; then | |
1890 | gcc_cv_ld="$LD" | |
1891 | fi | |
1892 | ||
1893 | if test "x$gcc_cv_ld" = x; then | |
1894 | # Search the same directories that the installed compiler will | |
1895 | # search. Else we may find the wrong linker and lose. If we | |
1896 | # do not find a suitable linker binary, then try the user's | |
1897 | # path. | |
1898 | # | |
1899 | # Also note we have to check MD_EXEC_PREFIX before checking the | |
1900 | # user's path. Unfortunately, there is no good way to get at the | |
1901 | # value of MD_EXEC_PREFIX here. So we do a brute force search | |
1902 | # through all the known MD_EXEC_PREFIX values. Ugh. This needs | |
1903 | # to be fixed as part of the make/configure rewrite too. | |
1904 | ||
1905 | if test "x$exec_prefix" = xNONE; then | |
1906 | if test "x$prefix" = xNONE; then | |
1907 | test_prefix=/usr/local | |
1908 | else | |
1909 | test_prefix=$prefix | |
1910 | fi | |
1911 | else | |
1912 | test_prefix=$exec_prefix | |
1913 | fi | |
1914 | ||
1915 | # If the loop below does not find a linker, then use whatever | |
1916 | # one we can find in the users's path. We are looking for a | |
1917 | # ${build} -> ${target} linker. | |
1918 | if test "x$program_prefix" != xNONE; then | |
1919 | gcc_cv_ld=${program_prefix}ld$build_exeext | |
1920 | elif test x$build != x$host && test x$build != x$target; then | |
1921 | gcc_cv_ld=${target_noncanonical}-ld$build_exeext | |
1922 | else | |
1923 | gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext | |
1924 | fi | |
1925 | ||
1926 | if test x$host = x$build; then | |
1927 | test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \ | |
1928 | $test_prefix/libexec/gcc/$target_noncanonical \ | |
1929 | /usr/lib/gcc/$target_noncanonical/$gcc_version \ | |
1930 | /usr/lib/gcc/$target_noncanonical \ | |
1931 | $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \ | |
1932 | $test_prefix/$target_noncanonical/bin" | |
1933 | else | |
1934 | test_dirs= | |
1935 | fi | |
1936 | ||
1937 | if test x$build = x$target; then | |
1938 | test_dirs="$test_dirs \ | |
1939 | /usr/libexec \ | |
1940 | /usr/ccs/gcc \ | |
1941 | /usr/ccs/bin \ | |
1942 | /udk/usr/ccs/bin \ | |
1943 | /bsd43/usr/lib/cmplrs/cc \ | |
1944 | /usr/cross64/usr/bin \ | |
1945 | /usr/lib/cmplrs/cc \ | |
1946 | /sysv/usr/lib/cmplrs/cc \ | |
1947 | /svr4/usr/lib/cmplrs/cc \ | |
1948 | /usr/bin" | |
1949 | fi | |
1950 | ||
1951 | for dir in $test_dirs; do | |
1952 | if test -x $dir/ld$build_exeext; then | |
1953 | gcc_cv_ld=$dir/ld$build_exeext | |
1954 | break; | |
1955 | fi | |
1956 | done | |
1957 | fi | |
1958 | case $in_tree_ld in | |
1959 | yes) | |
1960 | AC_MSG_RESULT("newly built ld") | |
1961 | ;; | |
1962 | no) | |
1963 | AC_MSG_RESULT($gcc_cv_ld) | |
1964 | ;; | |
1965 | esac | |
1966 | ||
1967 | # Figure out what nm we will be using. | |
1968 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils | |
1969 | AC_MSG_CHECKING(what nm to use) | |
1970 | in_tree_nm=no | |
1971 | if test -x nm$build_exeext; then | |
1972 | gcc_cv_nm=./nm$build_exeext | |
1973 | elif test -f $gcc_cv_binutils_srcdir/configure.in \ | |
1974 | && test -f ../binutils/Makefile; then | |
1975 | # Single tree build which includes binutils. | |
1976 | in_tree_nm=yes | |
1977 | gcc_cv_nm=./nm$build_exeext | |
1978 | rm -f nm$build_exeext | |
1979 | $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null | |
1980 | elif test "x$program_prefix" != xNONE; then | |
1981 | gcc_cv_nm=${program_prefix}nm$build_exeext | |
1982 | elif test x$build != x$host && test x$build != x$target; then | |
1983 | gcc_cv_nm=${target_noncanonical}-nm$build_exeext | |
1984 | else | |
1985 | gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext | |
1986 | fi | |
1987 | case $in_tree_nm in | |
1988 | yes) AC_MSG_RESULT("newly built nm") ;; | |
1989 | no) AC_MSG_RESULT($gcc_cv_nm) ;; | |
1990 | esac | |
1991 | ||
1992 | # Figure out what objdump we will be using. | |
1993 | AC_MSG_CHECKING(what objdump to use) | |
1994 | in_tree_objdump=no | |
1995 | if test -x objdump$build_exeext; then | |
1996 | gcc_cv_objdump=./objdump$build_exeext | |
1997 | elif test -f $gcc_cv_binutils_srcdir/configure.in \ | |
1998 | && test -f ../binutils/Makefile; then | |
1999 | # Single tree build which includes binutils. | |
2000 | in_tree_objdump=yes | |
2001 | gcc_cv_objdump=./objdump$build_exeext | |
2002 | rm -f objdump$build_exeext | |
2003 | $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null | |
2004 | elif test "x$program_prefix" != xNONE; then | |
2005 | gcc_cv_objdump=${program_prefix}objdump$build_exeext | |
2006 | elif test x$build != x$host && test x$build != x$target; then | |
2007 | gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext | |
2008 | else | |
2009 | gcc_cv_objdump=`echo objdump | \ | |
2010 | sed "${program_transform_name}"`$build_exeext | |
2011 | fi | |
2012 | case $in_tree_objdump in | |
2013 | yes) AC_MSG_RESULT("newly built objdump") ;; | |
2014 | no) AC_MSG_RESULT($gcc_cv_objdump) ;; | |
2015 | esac | |
2016 | ||
2017 | # Figure out what assembler alignment features are present. | |
2018 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, | |
2019 | [2,6,0],, | |
2020 | [.balign 4 | |
2021 | .p2align 2],, | |
2022 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
2023 | [Define if your assembler supports .balign and .p2align.])]) | |
2024 | ||
2025 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2026 | [2,8,0],, | |
2027 | [.p2align 4,,7],, | |
2028 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2029 | [Define if your assembler supports specifying the maximum number | |
2030 | of bytes to skip when using the GAS .p2align command.])]) | |
2031 | ||
2032 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, | |
2033 | [elf,2,9,0],, | |
2034 | [conftest_label1: .word 0 | |
2035 | .subsection -1 | |
2036 | conftest_label2: .word 0 | |
2037 | .previous], | |
2038 | [if test x$gcc_cv_nm != x; then | |
2039 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2040 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2041 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2042 | then : | |
2043 | else gcc_cv_as_subsection_m1=yes | |
2044 | fi | |
2045 | rm -f conftest.nm1 conftest.nm2 | |
2046 | fi], | |
2047 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2048 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2049 | emitting at the beginning of your section.])]) | |
2050 | ||
2051 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2052 | [2,2,0],, | |
2053 | [ .weak foobar],, | |
2054 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2055 | ||
2056 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, | |
2057 | [2,15,91],, | |
2058 | [ .SPACE $TEXT$ | |
2059 | .NSUBSPA $CODE$,COMDAT],, | |
2060 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2061 | ||
2062 | # .hidden needs to be supported in both the assembler and the linker, | |
2063 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2064 | # This is irritatingly difficult to feature test for; we have to check the | |
2065 | # date string after the version number. If we've got an in-tree | |
2066 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2067 | # to be safe. | |
2068 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
2069 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, | |
2070 | [elf,2,13,0],, | |
2071 | [ .hidden foobar | |
2072 | foobar:]) | |
2073 | ||
2074 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, | |
2075 | [if test $in_tree_ld = yes ; then | |
2076 | gcc_cv_ld_hidden=no | |
2077 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2078 | && test $in_tree_ld_is_elf = yes; then | |
2079 | gcc_cv_ld_hidden=yes | |
2080 | fi | |
2081 | else | |
2082 | gcc_cv_ld_hidden=yes | |
2083 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
2084 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
2085 | changequote(,)dnl | |
2086 | ld_vers=`echo $ld_ver | sed -n \ | |
2087 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2088 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2089 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2090 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
2091 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
2092 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'` | |
2093 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` | |
2094 | if test 0"$ld_date" -lt 20020404; then | |
2095 | if test -n "$ld_date"; then | |
2096 | # If there was date string, but was earlier than 2002-04-04, fail | |
2097 | gcc_cv_ld_hidden=no | |
2098 | elif test -z "$ld_vers"; then | |
2099 | # If there was no date string nor ld version number, something is wrong | |
2100 | gcc_cv_ld_hidden=no | |
2101 | else | |
2102 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2103 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2104 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
2105 | test -z "$ld_vers_patch" && ld_vers_patch=0 | |
2106 | if test "$ld_vers_major" -lt 2; then | |
2107 | gcc_cv_ld_hidden=no | |
2108 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2109 | gcc_cv_ld_hidden="no" | |
2110 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2111 | gcc_cv_ld_hidden=no | |
2112 | fi | |
2113 | fi | |
2114 | changequote([,])dnl | |
2115 | fi | |
2116 | else | |
2117 | case "${target}" in | |
2118 | hppa64*-*-hpux* | ia64*-*-hpux*) | |
2119 | gcc_cv_ld_hidden=yes | |
2120 | ;; | |
2121 | *) | |
2122 | gcc_cv_ld_hidden=no | |
2123 | ;; | |
2124 | esac | |
2125 | fi | |
2126 | fi]) | |
2127 | libgcc_visibility=no | |
2128 | AC_SUBST(libgcc_visibility) | |
2129 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then | |
2130 | libgcc_visibility=yes | |
2131 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2132 | [Define if your assembler and linker support .hidden.]) | |
2133 | fi | |
2134 | ||
2135 | # Check if we have .[us]leb128, and support symbol arithmetic with it. | |
2136 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2137 | [elf,2,11,0],, | |
2138 | [ .data | |
2139 | .uleb128 L2 - L1 | |
2140 | L1: | |
2141 | .uleb128 1280 | |
2142 | .sleb128 -1010 | |
2143 | L2:], | |
2144 | [# GAS versions before 2.11 do not support uleb128, | |
2145 | # despite appearing to. | |
2146 | # ??? There exists an elf-specific test that will crash | |
2147 | # the assembler. Perhaps it's better to figure out whether | |
2148 | # arbitrary sections are supported and try the test. | |
2149 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` | |
2150 | if echo "$as_ver" | grep GNU > /dev/null; then | |
2151 | changequote(,)dnl | |
2152 | as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'` | |
2153 | as_major=`echo $as_ver | sed 's/\..*//'` | |
2154 | as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'` | |
2155 | changequote([,])dnl | |
2156 | if test $as_major -eq 2 && test $as_minor -lt 11 | |
2157 | then : | |
2158 | else gcc_cv_as_leb128=yes | |
2159 | fi | |
2160 | fi], | |
2161 | [AC_DEFINE(HAVE_AS_LEB128, 1, | |
2162 | [Define if your assembler supports .sleb128 and .uleb128.])]) | |
2163 | ||
2164 | # GAS versions up to and including 2.11.0 may mis-optimize | |
2165 | # .eh_frame data. | |
2166 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2167 | [elf,2,12,0],, | |
2168 | [ .text | |
2169 | .LFB1: | |
2170 | .4byte 0 | |
2171 | .L1: | |
2172 | .4byte 0 | |
2173 | .LFE1: | |
2174 | .section .eh_frame,"aw",@progbits | |
2175 | __FRAME_BEGIN__: | |
2176 | .4byte .LECIE1-.LSCIE1 | |
2177 | .LSCIE1: | |
2178 | .4byte 0x0 | |
2179 | .byte 0x1 | |
2180 | .ascii "z\0" | |
2181 | .byte 0x1 | |
2182 | .byte 0x78 | |
2183 | .byte 0x1a | |
2184 | .byte 0x0 | |
2185 | .byte 0x4 | |
2186 | .4byte 1 | |
2187 | .p2align 1 | |
2188 | .LECIE1: | |
2189 | .LSFDE1: | |
2190 | .4byte .LEFDE1-.LASFDE1 | |
2191 | .LASFDE1: | |
2192 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
2193 | .4byte .LFB1 | |
2194 | .4byte .LFE1-.LFB1 | |
2195 | .byte 0x4 | |
2196 | .4byte .LFE1-.LFB1 | |
2197 | .byte 0x4 | |
2198 | .4byte .L1-.LFB1 | |
2199 | .LEFDE1:], | |
2200 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. | |
2201 | cat > conftest.lit <<EOF | |
2202 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... | |
2203 | 0010 01000000 12000000 18000000 00000000 ................ | |
2204 | 0020 08000000 04080000 0044 .........D @&t@ | |
2205 | EOF | |
2206 | cat > conftest.big <<EOF | |
2207 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... | |
2208 | 0010 00000001 00000012 00000018 00000000 ................ | |
2209 | 0020 00000008 04000000 0844 .........D @&t@ | |
2210 | EOF | |
2211 | # If the assembler didn't choke, and we can objdump, | |
2212 | # and we got the correct data, then succeed. | |
2213 | if test x$gcc_cv_objdump != x \ | |
2214 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2215 | | tail -3 > conftest.got \ | |
2216 | && { cmp conftest.lit conftest.got > /dev/null 2>&1 \ | |
2217 | || cmp conftest.big conftest.got > /dev/null 2>&1; } | |
2218 | then | |
2219 | gcc_cv_as_eh_frame=yes | |
2220 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2221 | gcc_cv_as_eh_frame=buggy | |
2222 | else | |
2223 | # Uh oh, what do we do now? | |
2224 | gcc_cv_as_eh_frame=no | |
2225 | fi]) | |
2226 | ||
2227 | if test $gcc_cv_as_eh_frame = buggy; then | |
2228 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
2229 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
2230 | fi | |
2231 | ||
2232 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2233 | [elf,2,12,0], [--fatal-warnings], | |
2234 | [.section .rodata.str, "aMS", @progbits, 1]) | |
2235 | if test $gcc_cv_as_shf_merge = no; then | |
2236 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2237 | [elf,2,12,0], [--fatal-warnings], | |
2238 | [.section .rodata.str, "aMS", %progbits, 1]) | |
2239 | fi | |
2240 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, | |
2241 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
2242 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
2243 | ||
2244 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group, | |
2245 | [elf,2,15,91], [--fatal-warnings], | |
2246 | [.section .text,"axG",@progbits,.foo,comdat]) | |
2247 | if test $gcc_cv_as_comdat_group = yes; then | |
2248 | gcc_cv_as_comdat_group_percent=no | |
2249 | else | |
2250 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent, | |
2251 | [elf,2,15,91], [--fatal-warnings], | |
2252 | [.section .text,"axG",%progbits,.foo,comdat]) | |
2253 | fi | |
2254 | AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP, | |
2255 | [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], | |
2256 | [Define 0/1 if your assembler supports COMDAT group.]) | |
2257 | ||
2258 | # Thread-local storage - the check is heavily parametrized. | |
2259 | conftest_s= | |
2260 | tls_first_major= | |
2261 | tls_first_minor= | |
2262 | tls_as_opt= | |
2263 | case "$target" in | |
2264 | changequote(,)dnl | |
2265 | alpha*-*-*) | |
2266 | conftest_s=' | |
2267 | .section ".tdata","awT",@progbits | |
2268 | foo: .long 25 | |
2269 | .text | |
2270 | ldq $27,__tls_get_addr($29) !literal!1 | |
2271 | lda $16,foo($29) !tlsgd!1 | |
2272 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
2273 | ldq $27,__tls_get_addr($29) !literal!2 | |
2274 | lda $16,foo($29) !tlsldm!2 | |
2275 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
2276 | ldq $1,foo($29) !gotdtprel | |
2277 | ldah $2,foo($29) !dtprelhi | |
2278 | lda $3,foo($2) !dtprello | |
2279 | lda $4,foo($29) !dtprel | |
2280 | ldq $1,foo($29) !gottprel | |
2281 | ldah $2,foo($29) !tprelhi | |
2282 | lda $3,foo($2) !tprello | |
2283 | lda $4,foo($29) !tprel' | |
2284 | tls_first_major=2 | |
2285 | tls_first_minor=13 | |
2286 | tls_as_opt=--fatal-warnings | |
2287 | ;; | |
2288 | frv*-*-*) | |
2289 | conftest_s=' | |
2290 | .section ".tdata","awT",@progbits | |
2291 | x: .long 25 | |
2292 | .text | |
2293 | call #gettlsoff(x)' | |
2294 | tls_first_major=2 | |
2295 | tls_first_minor=14 | |
2296 | ;; | |
2297 | i[34567]86-*-*) | |
2298 | conftest_s=' | |
2299 | .section ".tdata","awT",@progbits | |
2300 | foo: .long 25 | |
2301 | .text | |
2302 | movl %gs:0, %eax | |
2303 | leal foo@TLSGD(,%ebx,1), %eax | |
2304 | leal foo@TLSLDM(%ebx), %eax | |
2305 | leal foo@DTPOFF(%eax), %edx | |
2306 | movl foo@GOTTPOFF(%ebx), %eax | |
2307 | subl foo@GOTTPOFF(%ebx), %eax | |
2308 | addl foo@GOTNTPOFF(%ebx), %eax | |
2309 | movl foo@INDNTPOFF, %eax | |
2310 | movl $foo@TPOFF, %eax | |
2311 | subl $foo@TPOFF, %eax | |
2312 | leal foo@NTPOFF(%ecx), %eax' | |
2313 | tls_first_major=2 | |
2314 | tls_first_minor=14 | |
2315 | tls_as_opt=--fatal-warnings | |
2316 | ;; | |
2317 | x86_64-*-*) | |
2318 | conftest_s=' | |
2319 | .section ".tdata","awT",@progbits | |
2320 | foo: .long 25 | |
2321 | .text | |
2322 | movq %fs:0, %rax | |
2323 | leaq foo@TLSGD(%rip), %rdi | |
2324 | leaq foo@TLSLD(%rip), %rdi | |
2325 | leaq foo@DTPOFF(%rax), %rdx | |
2326 | movq foo@GOTTPOFF(%rip), %rax | |
2327 | movq $foo@TPOFF, %rax' | |
2328 | tls_first_major=2 | |
2329 | tls_first_minor=14 | |
2330 | tls_as_opt=--fatal-warnings | |
2331 | ;; | |
2332 | ia64-*-*) | |
2333 | conftest_s=' | |
2334 | .section ".tdata","awT",@progbits | |
2335 | foo: data8 25 | |
2336 | .text | |
2337 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
2338 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
2339 | addl r18 = @ltoff(@tprel(foo#)), gp | |
2340 | addl r19 = @dtprel(foo#), gp | |
2341 | adds r21 = @dtprel(foo#), r13 | |
2342 | movl r23 = @dtprel(foo#) | |
2343 | addl r20 = @tprel(foo#), gp | |
2344 | adds r22 = @tprel(foo#), r13 | |
2345 | movl r24 = @tprel(foo#)' | |
2346 | tls_first_major=2 | |
2347 | tls_first_minor=13 | |
2348 | tls_as_opt=--fatal-warnings | |
2349 | ;; | |
2350 | mips*-*-*) | |
2351 | conftest_s=' | |
2352 | .section .tdata,"awT",@progbits | |
2353 | x: | |
2354 | .word 2 | |
2355 | .text | |
2356 | addiu $4, $28, %tlsgd(x) | |
2357 | addiu $4, $28, %tlsldm(x) | |
2358 | lui $4, %dtprel_hi(x) | |
2359 | addiu $4, $4, %dtprel_lo(x) | |
2360 | lw $4, %gottprel(x)($28) | |
2361 | lui $4, %tprel_hi(x) | |
2362 | addiu $4, $4, %tprel_lo(x)' | |
2363 | tls_first_major=2 | |
2364 | tls_first_minor=16 | |
2365 | tls_as_opt='-32 --fatal-warnings' | |
2366 | ;; | |
2367 | powerpc-*-*) | |
2368 | conftest_s=' | |
2369 | .section ".tdata","awT",@progbits | |
2370 | .align 2 | |
2371 | ld0: .space 4 | |
2372 | ld1: .space 4 | |
2373 | x1: .space 4 | |
2374 | x2: .space 4 | |
2375 | x3: .space 4 | |
2376 | .text | |
2377 | addi 3,31,ld0@got@tlsgd | |
2378 | bl __tls_get_addr | |
2379 | addi 3,31,x1@got@tlsld | |
2380 | bl __tls_get_addr | |
2381 | addi 9,3,x1@dtprel | |
2382 | addis 9,3,x2@dtprel@ha | |
2383 | addi 9,9,x2@dtprel@l | |
2384 | lwz 9,x3@got@tprel(31) | |
2385 | add 9,9,x@tls | |
2386 | addi 9,2,x1@tprel | |
2387 | addis 9,2,x2@tprel@ha | |
2388 | addi 9,9,x2@tprel@l' | |
2389 | tls_first_major=2 | |
2390 | tls_first_minor=14 | |
2391 | tls_as_opt="-a32 --fatal-warnings" | |
2392 | ;; | |
2393 | powerpc64-*-*) | |
2394 | conftest_s=' | |
2395 | .section ".tdata","awT",@progbits | |
2396 | .align 3 | |
2397 | ld0: .space 8 | |
2398 | ld1: .space 8 | |
2399 | x1: .space 8 | |
2400 | x2: .space 8 | |
2401 | x3: .space 8 | |
2402 | .text | |
2403 | addi 3,2,ld0@got@tlsgd | |
2404 | bl .__tls_get_addr | |
2405 | nop | |
2406 | addi 3,2,ld1@toc | |
2407 | bl .__tls_get_addr | |
2408 | nop | |
2409 | addi 3,2,x1@got@tlsld | |
2410 | bl .__tls_get_addr | |
2411 | nop | |
2412 | addi 9,3,x1@dtprel | |
2413 | bl .__tls_get_addr | |
2414 | nop | |
2415 | addis 9,3,x2@dtprel@ha | |
2416 | addi 9,9,x2@dtprel@l | |
2417 | bl .__tls_get_addr | |
2418 | nop | |
2419 | ld 9,x3@got@dtprel(2) | |
2420 | add 9,9,3 | |
2421 | bl .__tls_get_addr | |
2422 | nop' | |
2423 | tls_first_major=2 | |
2424 | tls_first_minor=14 | |
2425 | tls_as_opt="-a64 --fatal-warnings" | |
2426 | ;; | |
2427 | s390-*-*) | |
2428 | conftest_s=' | |
2429 | .section ".tdata","awT",@progbits | |
2430 | foo: .long 25 | |
2431 | .text | |
2432 | .long foo@TLSGD | |
2433 | .long foo@TLSLDM | |
2434 | .long foo@DTPOFF | |
2435 | .long foo@NTPOFF | |
2436 | .long foo@GOTNTPOFF | |
2437 | .long foo@INDNTPOFF | |
2438 | l %r1,foo@GOTNTPOFF(%r12) | |
2439 | l %r1,0(%r1):tls_load:foo | |
2440 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
2441 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2442 | tls_first_major=2 | |
2443 | tls_first_minor=14 | |
2444 | tls_as_opt="-m31 --fatal-warnings" | |
2445 | ;; | |
2446 | s390x-*-*) | |
2447 | conftest_s=' | |
2448 | .section ".tdata","awT",@progbits | |
2449 | foo: .long 25 | |
2450 | .text | |
2451 | .quad foo@TLSGD | |
2452 | .quad foo@TLSLDM | |
2453 | .quad foo@DTPOFF | |
2454 | .quad foo@NTPOFF | |
2455 | .quad foo@GOTNTPOFF | |
2456 | lg %r1,foo@GOTNTPOFF(%r12) | |
2457 | larl %r1,foo@INDNTPOFF | |
2458 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
2459 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2460 | tls_first_major=2 | |
2461 | tls_first_minor=14 | |
2462 | tls_as_opt="-m64 -Aesame --fatal-warnings" | |
2463 | ;; | |
2464 | sh-*-* | sh[34]-*-*) | |
2465 | conftest_s=' | |
2466 | .section ".tdata","awT",@progbits | |
2467 | foo: .long 25 | |
2468 | .text | |
2469 | .long foo@TLSGD | |
2470 | .long foo@TLSLDM | |
2471 | .long foo@DTPOFF | |
2472 | .long foo@GOTTPOFF | |
2473 | .long foo@TPOFF' | |
2474 | tls_first_major=2 | |
2475 | tls_first_minor=13 | |
2476 | tls_as_opt=--fatal-warnings | |
2477 | ;; | |
2478 | sparc*-*-*) | |
2479 | case "$target" in | |
2480 | sparc*-sun-solaris2.*) | |
2481 | on_solaris=yes | |
2482 | ;; | |
2483 | *) | |
2484 | on_solaris=no | |
2485 | ;; | |
2486 | esac | |
2487 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
2488 | conftest_s=' | |
2489 | .section ".tdata",#alloc,#write,#tls | |
2490 | foo: .long 25 | |
2491 | .text | |
2492 | sethi %tgd_hi22(foo), %o0 | |
2493 | add %o0, %tgd_lo10(foo), %o1 | |
2494 | add %l7, %o1, %o0, %tgd_add(foo) | |
2495 | call __tls_get_addr, %tgd_call(foo) | |
2496 | sethi %tldm_hi22(foo), %l1 | |
2497 | add %l1, %tldm_lo10(foo), %l2 | |
2498 | add %l7, %l2, %o0, %tldm_add(foo) | |
2499 | call __tls_get_addr, %tldm_call(foo) | |
2500 | sethi %tldo_hix22(foo), %l3 | |
2501 | xor %l3, %tldo_lox10(foo), %l4 | |
2502 | add %o0, %l4, %l5, %tldo_add(foo) | |
2503 | sethi %tie_hi22(foo), %o3 | |
2504 | add %o3, %tie_lo10(foo), %o3 | |
2505 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2506 | add %g7, %o2, %o4, %tie_add(foo) | |
2507 | sethi %tle_hix22(foo), %l1 | |
2508 | xor %l1, %tle_lox10(foo), %o5 | |
2509 | ld [%g7 + %o5], %o1' | |
2510 | tls_first_major=0 | |
2511 | tls_first_minor=0 | |
2512 | else | |
2513 | conftest_s=' | |
2514 | .section ".tdata","awT",@progbits | |
2515 | foo: .long 25 | |
2516 | .text | |
2517 | sethi %tgd_hi22(foo), %o0 | |
2518 | add %o0, %tgd_lo10(foo), %o1 | |
2519 | add %l7, %o1, %o0, %tgd_add(foo) | |
2520 | call __tls_get_addr, %tgd_call(foo) | |
2521 | sethi %tldm_hi22(foo), %l1 | |
2522 | add %l1, %tldm_lo10(foo), %l2 | |
2523 | add %l7, %l2, %o0, %tldm_add(foo) | |
2524 | call __tls_get_addr, %tldm_call(foo) | |
2525 | sethi %tldo_hix22(foo), %l3 | |
2526 | xor %l3, %tldo_lox10(foo), %l4 | |
2527 | add %o0, %l4, %l5, %tldo_add(foo) | |
2528 | sethi %tie_hi22(foo), %o3 | |
2529 | add %o3, %tie_lo10(foo), %o3 | |
2530 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2531 | add %g7, %o2, %o4, %tie_add(foo) | |
2532 | sethi %tle_hix22(foo), %l1 | |
2533 | xor %l1, %tle_lox10(foo), %o5 | |
2534 | ld [%g7 + %o5], %o1' | |
2535 | tls_first_major=2 | |
2536 | tls_first_minor=14 | |
2537 | tls_as_opt="-32 --fatal-warnings" | |
2538 | fi | |
2539 | ;; | |
2540 | changequote([,])dnl | |
2541 | esac | |
2542 | if test -z "$tls_first_major"; then | |
2543 | : # If we don't have a check, assume no support. | |
2544 | else | |
2545 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2546 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, | |
2547 | [AC_DEFINE(HAVE_AS_TLS, 1, | |
2548 | [Define if your assembler supports thread-local storage.])]) | |
2549 | fi | |
2550 | ||
2551 | # Target-specific assembler checks. | |
2552 | ||
2553 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) | |
2554 | gcc_cv_ld_static_dynamic=no | |
2555 | if test $in_tree_ld = yes ; then | |
2556 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then | |
2557 | gcc_cv_ld_static_dynamic=yes | |
2558 | fi | |
2559 | elif test x$gcc_cv_ld != x; then | |
2560 | # Check if linker supports -Bstatic/-Bdynamic option | |
2561 | if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \ | |
2562 | && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then | |
2563 | gcc_cv_ld_static_dynamic=yes | |
2564 | fi | |
2565 | fi | |
2566 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
2567 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
2568 | [Define if your linker supports -Bstatic/-Bdynamic option.]) | |
2569 | fi | |
2570 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
2571 | ||
2572 | if test x"$demangler_in_ld" = xyes; then | |
2573 | AC_MSG_CHECKING(linker --demangle support) | |
2574 | gcc_cv_ld_demangle=no | |
2575 | if test $in_tree_ld = yes; then | |
2576 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
2577 | gcc_cv_ld_demangle=yes | |
2578 | fi | |
2579 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
2580 | # Check if the GNU linker supports --demangle option | |
2581 | if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then | |
2582 | gcc_cv_ld_demangle=yes | |
2583 | fi | |
2584 | fi | |
2585 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
2586 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
2587 | [Define if your linker supports --demangle option.]) | |
2588 | fi | |
2589 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
2590 | fi | |
2591 | ||
2592 | case "$target" in | |
2593 | # All TARGET_ABI_OSF targets. | |
2594 | alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*) | |
2595 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
2596 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
2597 | [ .set nomacro | |
2598 | .text | |
2599 | extbl $3, $2, $3 !lituse_bytoff!1 | |
2600 | ldq $2, a($29) !literal!1 | |
2601 | ldq $4, b($29) !literal!2 | |
2602 | ldq_u $3, 0($2) !lituse_base!1 | |
2603 | ldq $27, f($29) !literal!5 | |
2604 | jsr $26, ($27), f !lituse_jsr!5 | |
2605 | ldah $29, 0($26) !gpdisp!3 | |
2606 | lda $0, c($29) !gprel | |
2607 | ldah $1, d($29) !gprelhigh | |
2608 | lda $1, d($1) !gprellow | |
2609 | lda $29, 0($29) !gpdisp!3],, | |
2610 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
2611 | [Define if your assembler supports explicit relocations.])]) | |
2612 | ;; | |
2613 | ||
2614 | cris-*-*) | |
2615 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
2616 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
2617 | [-no-mul-bug-abort], [.text],, | |
2618 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
2619 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
2620 | ;; | |
2621 | ||
2622 | sparc*-*-*) | |
2623 | gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
2624 | [.register %g2, #scratch],, | |
2625 | [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
2626 | [Define if your assembler supports .register.])]) | |
2627 | ||
2628 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
2629 | [-relax], [.text],, | |
2630 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
2631 | [Define if your assembler supports -relax option.])]) | |
2632 | ||
2633 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], | |
2634 | gcc_cv_as_sparc_ua_pcrel,, | |
2635 | [-K PIC], | |
2636 | [.text | |
2637 | foo: | |
2638 | nop | |
2639 | .data | |
2640 | .align 4 | |
2641 | .byte 0 | |
2642 | .uaword %r_disp32(foo)], | |
2643 | [if test x$gcc_cv_ld != x \ | |
2644 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
2645 | gcc_cv_as_sparc_ua_pcrel=yes | |
2646 | fi | |
2647 | rm -f conftest], | |
2648 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
2649 | [Define if your assembler and linker support unaligned PC relative relocs.]) | |
2650 | ||
2651 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], | |
2652 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
2653 | [-K PIC], | |
2654 | [.data | |
2655 | .align 4 | |
2656 | .byte 0x31 | |
2657 | .uaword %r_disp32(foo) | |
2658 | .byte 0x32, 0x33, 0x34 | |
2659 | .global foo | |
2660 | .hidden foo | |
2661 | foo: | |
2662 | .skip 4], | |
2663 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
2664 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
2665 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
2666 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
2667 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
2668 | | grep 'DISP32' > /dev/null 2>&1; then | |
2669 | : | |
2670 | else | |
2671 | gcc_cv_as_sparc_ua_pcrel_hidden=yes | |
2672 | fi | |
2673 | fi | |
2674 | rm -f conftest], | |
2675 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
2676 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
2677 | ]) # unaligned pcrel relocs | |
2678 | ||
2679 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
2680 | gcc_cv_as_sparc_offsetable_lo10,, | |
2681 | [-xarch=v9], | |
2682 | [.text | |
2683 | or %g1, %lo(ab) + 12, %g1 | |
2684 | or %g1, %lo(ab + 12), %g1], | |
2685 | [if test x$gcc_cv_objdump != x \ | |
2686 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ | |
2687 | | grep ' 82106000 82106000' > /dev/null 2>&1; then | |
2688 | gcc_cv_as_sparc_offsetable_lo10=yes | |
2689 | fi], | |
2690 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
2691 | [Define if your assembler supports offsetable %lo().])]) | |
2692 | ;; | |
2693 | ||
2694 | changequote(,)dnl | |
2695 | i[34567]86-*-* | x86_64-*-*) | |
2696 | changequote([,])dnl | |
2697 | case $target_os in | |
2698 | cygwin* | pe | mingw32*) | |
2699 | # Used for DWARF 2 in PE | |
2700 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
2701 | gcc_cv_as_ix86_pe_secrel32, | |
2702 | [2,15,91],, | |
2703 | [.text | |
2704 | foo: nop | |
2705 | .data | |
2706 | .secrel32 foo], | |
2707 | [if test x$gcc_cv_ld != x \ | |
2708 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
2709 | gcc_cv_as_ix86_pe_secrel32=yes | |
2710 | fi | |
2711 | rm -f conftest], | |
2712 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
2713 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
2714 | ;; | |
2715 | esac | |
2716 | ||
2717 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], | |
2718 | gcc_cv_as_ix86_filds_fists, | |
2719 | [2,9,0],, [filds mem; fists mem],, | |
2720 | [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1, | |
2721 | [Define if your assembler uses the new HImode fild and fist notation.])]) | |
2722 | ||
2723 | gcc_GAS_CHECK_FEATURE([cmov syntax], | |
2724 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
2725 | [cmovl.l %edx, %eax],, | |
2726 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
2727 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
2728 | ||
2729 | # This one is used unconditionally by i386.[ch]; it is to be defined | |
2730 | # to 1 if the feature is present, 0 otherwise. | |
2731 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
2732 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0],, | |
2733 | [ .text | |
2734 | .L0: | |
2735 | nop | |
2736 | .data | |
2737 | .long .L0@GOTOFF]) | |
2738 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
2739 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
2740 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
2741 | ;; | |
2742 | ||
2743 | ia64*-*-*) | |
2744 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], | |
2745 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
2746 | [ .text | |
2747 | addl r15 = @ltoffx(x#), gp | |
2748 | ;; | |
2749 | ld8.mov r16 = [[r15]], x#],, | |
2750 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, | |
2751 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
2752 | ||
2753 | ;; | |
2754 | ||
2755 | powerpc*-*-*) | |
2756 | case $target in | |
2757 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
2758 | mfcr 3,128';; | |
2759 | *-*-darwin*) | |
2760 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
2761 | gcc_cv_as_machine_directive,,, | |
2762 | [ .machine ppc7400]) | |
2763 | if test x$gcc_cv_as_machine_directive != xyes; then | |
2764 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
2765 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
2766 | test x$build = x$target && exit 1 | |
2767 | fi | |
2768 | conftest_s=' .text | |
2769 | mfcr r3,128';; | |
2770 | *) conftest_s=' .machine power4 | |
2771 | .text | |
2772 | mfcr 3,128';; | |
2773 | esac | |
2774 | ||
2775 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
2776 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
2777 | [$conftest_s],, | |
2778 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
2779 | [Define if your assembler supports mfcr field.])]) | |
2780 | ;; | |
2781 | ||
2782 | mips*-*-*) | |
2783 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
2784 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
2785 | [ lw $4,%gp_rel(foo)($4)],, | |
2786 | [if test x$target_cpu_default = x | |
2787 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
2788 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
2789 | fi]) | |
2790 | ||
2791 | if test x$gas_flag = xyes \ | |
2792 | || test x"$host" != x"$build" \ | |
2793 | || test ! -x "$gcc_cv_as" \ | |
2794 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
2795 | : | |
2796 | else | |
2797 | echo "*** This configuration requires the GNU assembler" >&2 | |
2798 | exit 1 | |
2799 | fi | |
2800 | ;; | |
2801 | esac | |
2802 | # ??? Not all targets support dwarf2 debug_line, even within a version | |
2803 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
2804 | # info to the output file. So, as supported targets are added to gas 2.11, | |
2805 | # add some instruction here to (also) show we expect this might work. | |
2806 | # ??? Once 2.11 is released, probably need to add first known working | |
2807 | # version to the per-target configury. | |
2808 | case "$target" in | |
2809 | i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \ | |
2810 | | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \ | |
2811 | | xstormy16*-*-* | cris-*-* | xtensa-*-*) | |
2812 | insn="nop" | |
2813 | ;; | |
2814 | ia64*-*-* | s390*-*-*) | |
2815 | insn="nop 0" | |
2816 | ;; | |
2817 | mmix-*-*) | |
2818 | insn="swym 0" | |
2819 | ;; | |
2820 | esac | |
2821 | if test x"$insn" != x; then | |
2822 | conftest_s="\ | |
2823 | .file 1 \"conftest.s\" | |
2824 | .loc 1 3 0 | |
2825 | $insn" | |
2826 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
2827 | gcc_cv_as_dwarf2_debug_line, | |
2828 | [elf,2,11,0],, [$conftest_s], | |
2829 | [if test x$gcc_cv_objdump != x \ | |
2830 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
2831 | | grep debug_line > /dev/null 2>&1; then | |
2832 | gcc_cv_as_dwarf2_debug_line=yes | |
2833 | fi]) | |
2834 | ||
2835 | # The .debug_line file table must be in the exact order that | |
2836 | # we specified the files, since these indices are also used | |
2837 | # by DW_AT_decl_file. Approximate this test by testing if | |
2838 | # the assembler bitches if the same index is assigned twice. | |
2839 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
2840 | gcc_cv_as_dwarf2_file_buggy,,, | |
2841 | [ .file 1 "foo.s" | |
2842 | .file 1 "bar.s"]) | |
2843 | ||
2844 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
2845 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
2846 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, | |
2847 | [Define if your assembler supports dwarf2 .file/.loc directives, | |
2848 | and preserves file table indices exactly as given.]) | |
2849 | fi | |
2850 | ||
2851 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
2852 | gcc_cv_as_gdwarf2_flag, | |
2853 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
2854 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
2855 | [Define if your assembler supports the --gdwarf2 option.])]) | |
2856 | ||
2857 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
2858 | gcc_cv_as_gstabs_flag, | |
2859 | [elf,2,11,0], [--gstabs], [$insn], | |
2860 | [# The native Solaris 9/Intel assembler doesn't understand --gstabs | |
2861 | # and warns about it, but still exits successfully. So check for | |
2862 | # this. | |
2863 | if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null]) | |
2864 | then : | |
2865 | else gcc_cv_as_gstabs_flag=yes | |
2866 | fi], | |
2867 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, | |
2868 | [Define if your assembler supports the --gstabs option.])]) | |
2869 | fi | |
2870 | ||
2871 | AC_MSG_CHECKING(linker read-only and read-write section mixing) | |
2872 | gcc_cv_ld_ro_rw_mix=unknown | |
2873 | if test $in_tree_ld = yes ; then | |
2874 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2875 | && test $in_tree_ld_is_elf = yes; then | |
2876 | gcc_cv_ld_ro_rw_mix=read-write | |
2877 | fi | |
2878 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
2879 | echo '.section myfoosect, "a"' > conftest1.s | |
2880 | echo '.section myfoosect, "aw"' > conftest2.s | |
2881 | echo '.byte 1' >> conftest2.s | |
2882 | echo '.section myfoosect, "a"' > conftest3.s | |
2883 | echo '.byte 0' >> conftest3.s | |
2884 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2885 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
2886 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
2887 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
2888 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
2889 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
2890 | | sed -e '/myfoosect/!d' -e N` | |
2891 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
2892 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
2893 | gcc_cv_ld_ro_rw_mix=read-only | |
2894 | else | |
2895 | gcc_cv_ld_ro_rw_mix=read-write | |
2896 | fi | |
2897 | fi | |
2898 | fi | |
2899 | changequote(,)dnl | |
2900 | rm -f conftest.* conftest[123].* | |
2901 | changequote([,])dnl | |
2902 | fi | |
2903 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
2904 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
2905 | [Define if your linker links a mix of read-only | |
2906 | and read-write sections into a read-write section.]) | |
2907 | fi | |
2908 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
2909 | ||
2910 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) | |
2911 | gcc_cv_ld_eh_frame_hdr=no | |
2912 | if test $in_tree_ld = yes ; then | |
2913 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2914 | && test $in_tree_ld_is_elf = yes; then | |
2915 | gcc_cv_ld_eh_frame_hdr=yes | |
2916 | fi | |
2917 | elif test x$gcc_cv_ld != x; then | |
2918 | # Check if linker supports --eh-frame-hdr option | |
2919 | if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then | |
2920 | gcc_cv_ld_eh_frame_hdr=yes | |
2921 | fi | |
2922 | fi | |
2923 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then | |
2924 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
2925 | [Define if your linker supports --eh-frame-hdr option.]) | |
2926 | fi | |
2927 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
2928 | ||
2929 | AC_MSG_CHECKING(linker position independent executable support) | |
2930 | gcc_cv_ld_pie=no | |
2931 | if test $in_tree_ld = yes ; then | |
2932 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2933 | && test $in_tree_ld_is_elf = yes; then | |
2934 | gcc_cv_ld_pie=yes | |
2935 | fi | |
2936 | elif test x$gcc_cv_ld != x; then | |
2937 | # Check if linker supports -pie option | |
2938 | if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then | |
2939 | gcc_cv_ld_pie=yes | |
2940 | fi | |
2941 | fi | |
2942 | if test x"$gcc_cv_ld_pie" = xyes; then | |
2943 | AC_DEFINE(HAVE_LD_PIE, 1, | |
2944 | [Define if your linker supports -pie option.]) | |
2945 | fi | |
2946 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
2947 | ||
2948 | # -------- | |
2949 | # UNSORTED | |
2950 | # -------- | |
2951 | ||
2952 | AC_CACHE_CHECK(linker --as-needed support, | |
2953 | gcc_cv_ld_as_needed, | |
2954 | [gcc_cv_ld_as_needed=no | |
2955 | if test $in_tree_ld = yes ; then | |
2956 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2957 | && test $in_tree_ld_is_elf = yes; then | |
2958 | gcc_cv_ld_as_needed=yes | |
2959 | fi | |
2960 | elif test x$gcc_cv_ld != x; then | |
2961 | # Check if linker supports --as-needed and --no-as-needed options | |
2962 | if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then | |
2963 | gcc_cv_ld_as_needed=yes | |
2964 | fi | |
2965 | fi | |
2966 | ]) | |
2967 | if test x"$gcc_cv_ld_as_needed" = xyes; then | |
2968 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
2969 | [Define if your linker supports --as-needed and --no-as-needed options.]) | |
2970 | fi | |
2971 | ||
2972 | case "$target" in | |
2973 | powerpc64*-*-linux*) | |
2974 | AC_CACHE_CHECK(linker support for omitting dot symbols, | |
2975 | gcc_cv_ld_no_dot_syms, | |
2976 | [gcc_cv_ld_no_dot_syms=no | |
2977 | if test $in_tree_ld = yes ; then | |
2978 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then | |
2979 | gcc_cv_ld_no_dot_syms=yes | |
2980 | fi | |
2981 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
2982 | cat > conftest1.s <<EOF | |
2983 | .text | |
2984 | bl .foo | |
2985 | EOF | |
2986 | cat > conftest2.s <<EOF | |
2987 | .section ".opd","aw" | |
2988 | .align 3 | |
2989 | .globl foo | |
2990 | .type foo,@function | |
2991 | foo: | |
2992 | .quad .LEfoo,.TOC.@tocbase,0 | |
2993 | .text | |
2994 | .LEfoo: | |
2995 | blr | |
2996 | .size foo,.-.LEfoo | |
2997 | EOF | |
2998 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
2999 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3000 | && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then | |
3001 | gcc_cv_ld_no_dot_syms=yes | |
3002 | fi | |
3003 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
3004 | fi | |
3005 | ]) | |
3006 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
3007 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
3008 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
3009 | fi | |
3010 | ;; | |
3011 | esac | |
3012 | ||
3013 | if test x$with_sysroot = x && test x$host = x$target \ | |
3014 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then | |
3015 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
3016 | [Define to PREFIX/include if cpp should also search that directory.]) | |
3017 | fi | |
3018 | ||
3019 | # Find out what GC implementation we want, or may, use. | |
3020 | AC_ARG_WITH(gc, | |
3021 | [ --with-gc={page,zone} choose the garbage collection mechanism to use | |
3022 | with the compiler], | |
3023 | [case "$withval" in | |
3024 | page) | |
3025 | GGC=ggc-$withval | |
3026 | ;; | |
3027 | zone) | |
3028 | GGC=ggc-$withval | |
3029 | AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use]) | |
3030 | ;; | |
3031 | *) | |
3032 | AC_MSG_ERROR([$withval is an invalid option to --with-gc]) | |
3033 | ;; | |
3034 | esac], | |
3035 | [GGC=ggc-page]) | |
3036 | AC_SUBST(GGC) | |
3037 | echo "Using $GGC for garbage collection." | |
3038 | ||
3039 | # Use the system's zlib library. | |
3040 | zlibdir=-L../zlib | |
3041 | zlibinc="-I\$(srcdir)/../zlib" | |
3042 | AC_ARG_WITH(system-zlib, | |
3043 | [ --with-system-zlib use installed libz], | |
3044 | zlibdir= | |
3045 | zlibinc= | |
3046 | ) | |
3047 | AC_SUBST(zlibdir) | |
3048 | AC_SUBST(zlibinc) | |
3049 | ||
3050 | dnl Very limited version of automake's enable-maintainer-mode | |
3051 | ||
3052 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
3053 | dnl maintainer-mode is disabled by default | |
3054 | AC_ARG_ENABLE(maintainer-mode, | |
3055 | [ --enable-maintainer-mode | |
3056 | enable make rules and dependencies not useful | |
3057 | (and sometimes confusing) to the casual installer], | |
3058 | maintainer_mode=$enableval, | |
3059 | maintainer_mode=no) | |
3060 | ||
3061 | AC_MSG_RESULT($maintainer_mode) | |
3062 | ||
3063 | if test "$maintainer_mode" = "yes"; then | |
3064 | MAINT='' | |
3065 | else | |
3066 | MAINT='#' | |
3067 | fi | |
3068 | AC_SUBST(MAINT)dnl | |
3069 | ||
3070 | # -------------- | |
3071 | # Language hooks | |
3072 | # -------------- | |
3073 | ||
3074 | # Make empty files to contain the specs and options for each language. | |
3075 | # Then add #include lines to for a compiler that has specs and/or options. | |
3076 | ||
3077 | lang_opt_files= | |
3078 | lang_specs_files= | |
3079 | lang_tree_files= | |
3080 | for subdir in . $subdirs | |
3081 | do | |
3082 | if test -f $srcdir/$subdir/lang.opt; then | |
3083 | lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt" | |
3084 | fi | |
3085 | if test -f $srcdir/$subdir/lang-specs.h; then | |
3086 | lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h" | |
3087 | fi | |
3088 | if test -f $srcdir/$subdir/$subdir-tree.def; then | |
3089 | lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def" | |
3090 | fi | |
3091 | done | |
3092 | ||
3093 | # These (without "all_") are set in each config-lang.in. | |
3094 | # `language' must be a single word so is spelled singularly. | |
3095 | all_languages= | |
3096 | all_boot_languages= | |
3097 | all_compilers= | |
3098 | all_stagestuff= | |
3099 | all_outputs='Makefile gccbug mklibgcc libada-mk' | |
3100 | # List of language makefile fragments. | |
3101 | all_lang_makefrags= | |
3102 | # List of language subdirectory makefiles. Deprecated. | |
3103 | all_lang_makefiles= | |
3104 | # Files for gengtype | |
3105 | all_gtfiles="$target_gtfiles" | |
3106 | # Files for gengtype with language | |
3107 | all_gtfiles_files_langs= | |
3108 | all_gtfiles_files_files= | |
3109 | ||
3110 | # Add the language fragments. | |
3111 | # Languages are added via two mechanisms. Some information must be | |
3112 | # recorded in makefile variables, these are defined in config-lang.in. | |
3113 | # We accumulate them and plug them into the main Makefile. | |
3114 | # The other mechanism is a set of hooks for each of the main targets | |
3115 | # like `clean', `install', etc. | |
3116 | ||
3117 | language_hooks="Make-hooks" | |
3118 | ||
3119 | for s in $subdirs | |
3120 | do | |
3121 | language= | |
3122 | boot_language= | |
3123 | compilers= | |
3124 | stagestuff= | |
3125 | outputs= | |
3126 | gtfiles= | |
3127 | . ${srcdir}/$s/config-lang.in | |
3128 | if test "x$language" = x | |
3129 | then | |
3130 | echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2 | |
3131 | exit 1 | |
3132 | fi | |
3133 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in" | |
3134 | if test -f ${srcdir}/$s/Makefile.in | |
3135 | then all_lang_makefiles="$s/Makefile" | |
3136 | fi | |
3137 | all_languages="$all_languages $language" | |
3138 | if test "x$boot_language" = xyes | |
3139 | then | |
3140 | all_boot_languages="$all_boot_languages $language" | |
3141 | fi | |
3142 | all_compilers="$all_compilers $compilers" | |
3143 | all_stagestuff="$all_stagestuff $stagestuff" | |
3144 | all_outputs="$all_outputs $outputs" | |
3145 | all_gtfiles="$all_gtfiles $gtfiles" | |
3146 | for f in $gtfiles | |
3147 | do | |
3148 | all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " | |
3149 | all_gtfiles_files_files="$all_gtfiles_files_files ${f} " | |
3150 | done | |
3151 | done | |
3152 | ||
3153 | # Pick up gtfiles for c | |
3154 | gtfiles= | |
3155 | s="c" | |
3156 | . ${srcdir}/c-config-lang.in | |
3157 | all_gtfiles="$all_gtfiles $gtfiles" | |
3158 | for f in $gtfiles | |
3159 | do | |
3160 | all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " | |
3161 | all_gtfiles_files_files="$all_gtfiles_files_files ${f} " | |
3162 | done | |
3163 | ||
3164 | check_languages= | |
3165 | for language in $all_languages | |
3166 | do | |
3167 | check_languages="$check_languages check-$language" | |
3168 | done | |
3169 | ||
3170 | # We link each language in with a set of hooks, reached indirectly via | |
3171 | # lang.${target}. | |
3172 | ||
3173 | rm -f Make-hooks | |
3174 | touch Make-hooks | |
3175 | target_list="all.build all.cross start.encap rest.encap tags \ | |
3176 | install-normal install-common install-man \ | |
3177 | uninstall info man srcextra srcman srcinfo \ | |
3178 | mostlyclean clean distclean maintainer-clean \ | |
3179 | stage1 stage2 stage3 stage4 stageprofile stagefeedback" | |
3180 | for t in $target_list | |
3181 | do | |
3182 | x= | |
3183 | for lang in $all_languages | |
3184 | do | |
3185 | x="$x $lang.$t" | |
3186 | done | |
3187 | echo "lang.$t: $x" >> Make-hooks | |
3188 | done | |
3189 | ||
3190 | # -------- | |
3191 | # UNSORTED | |
3192 | # -------- | |
3193 | ||
3194 | # Create .gdbinit. | |
3195 | ||
3196 | echo "dir ." > .gdbinit | |
3197 | echo "dir ${srcdir}" >> .gdbinit | |
3198 | if test x$gdb_needs_out_file_path = xyes | |
3199 | then | |
3200 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
3201 | fi | |
3202 | if test "x$subdirs" != x; then | |
3203 | for s in $subdirs | |
3204 | do | |
3205 | echo "dir ${srcdir}/$s" >> .gdbinit | |
3206 | done | |
3207 | fi | |
3208 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit | |
3209 | ||
3210 | # If $(exec_prefix) exists and is not the same as $(prefix), then compute an | |
3211 | # absolute path for gcc_tooldir based on inserting the number of up-directory | |
3212 | # movements required to get from $(exec_prefix) to $(prefix) into the basic | |
3213 | # $(libsubdir)/@(unlibsubdir) based path. | |
3214 | # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel | |
3215 | # make and thus we'd get different behavior depending on where we built the | |
3216 | # sources. | |
3217 | if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then | |
3218 | gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)' | |
3219 | else | |
3220 | changequote(<<, >>)dnl | |
3221 | # An explanation of the sed strings: | |
3222 | # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix' | |
3223 | # -e 's|/$||' match a trailing forward slash and eliminates it | |
3224 | # -e 's|^[^/]|/|' forces the string to start with a forward slash (*) | |
3225 | # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../ | |
3226 | # | |
3227 | # (*) Note this pattern overwrites the first character of the string | |
3228 | # with a forward slash if one is not already present. This is not a | |
3229 | # problem because the exact names of the sub-directories concerned is | |
3230 | # unimportant, just the number of them matters. | |
3231 | # | |
3232 | # The practical upshot of these patterns is like this: | |
3233 | # | |
3234 | # prefix exec_prefix result | |
3235 | # ------ ----------- ------ | |
3236 | # /foo /foo/bar ../ | |
3237 | # /foo/ /foo/bar ../ | |
3238 | # /foo /foo/bar/ ../ | |
3239 | # /foo/ /foo/bar/ ../ | |
3240 | # /foo /foo/bar/ugg ../../ | |
3241 | # | |
3242 | dollar='$$' | |
3243 | gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)" | |
3244 | changequote([, ])dnl | |
3245 | fi | |
3246 | AC_SUBST(gcc_tooldir) | |
3247 | AC_SUBST(dollar) | |
3248 | ||
3249 | # Find a directory in which to install a shared libgcc. | |
3250 | ||
3251 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
3252 | [ --enable-version-specific-runtime-libs | |
3253 | specify that runtime libraries should be | |
3254 | installed in a compiler-specific directory]) | |
3255 | ||
3256 | AC_ARG_WITH(slibdir, | |
3257 | [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]], | |
3258 | slibdir="$with_slibdir", | |
3259 | if test "${enable_version_specific_runtime_libs+set}" = set; then | |
3260 | slibdir='$(libsubdir)' | |
3261 | elif test "$host" != "$target"; then | |
3262 | slibdir='$(build_tooldir)/lib' | |
3263 | else | |
3264 | slibdir='$(libdir)' | |
3265 | fi) | |
3266 | AC_SUBST(slibdir) | |
3267 | ||
3268 | objdir=`${PWDCMD-pwd}` | |
3269 | AC_SUBST(objdir) | |
3270 | ||
3271 | # Substitute configuration variables | |
3272 | AC_SUBST(subdirs) | |
3273 | AC_SUBST(srcdir) | |
3274 | AC_SUBST(all_boot_languages) | |
3275 | AC_SUBST(all_compilers) | |
3276 | AC_SUBST(all_gtfiles) | |
3277 | AC_SUBST(all_gtfiles_files_langs) | |
3278 | AC_SUBST(all_gtfiles_files_files) | |
3279 | AC_SUBST(all_lang_makefrags) | |
3280 | AC_SUBST(all_lang_makefiles) | |
3281 | AC_SUBST(all_languages) | |
3282 | AC_SUBST(all_stagestuff) | |
3283 | AC_SUBST(build_exeext) | |
3284 | AC_SUBST(build_install_headers_dir) | |
3285 | AC_SUBST(build_xm_file_list) | |
3286 | AC_SUBST(build_xm_include_list) | |
3287 | AC_SUBST(build_xm_defines) | |
3288 | AC_SUBST(check_languages) | |
3289 | AC_SUBST(cc_set_by_configure) | |
3290 | AC_SUBST(quoted_cc_set_by_configure) | |
3291 | AC_SUBST(cpp_install_dir) | |
3292 | AC_SUBST(xmake_file) | |
3293 | AC_SUBST(tmake_file) | |
3294 | AC_SUBST(extra_gcc_objs) | |
3295 | AC_SUBST(extra_headers_list) | |
3296 | AC_SUBST(extra_objs) | |
3297 | AC_SUBST(extra_parts) | |
3298 | AC_SUBST(extra_passes) | |
3299 | AC_SUBST(extra_programs) | |
3300 | AC_SUBST(float_h_file) | |
3301 | AC_SUBST(gcc_config_arguments) | |
3302 | AC_SUBST(gcc_gxx_include_dir) | |
3303 | AC_SUBST(libstdcxx_incdir) | |
3304 | AC_SUBST(host_exeext) | |
3305 | AC_SUBST(host_xm_file_list) | |
3306 | AC_SUBST(host_xm_include_list) | |
3307 | AC_SUBST(host_xm_defines) | |
3308 | AC_SUBST(out_host_hook_obj) | |
3309 | AC_SUBST(install) | |
3310 | AC_SUBST(lang_opt_files) | |
3311 | AC_SUBST(lang_specs_files) | |
3312 | AC_SUBST(lang_tree_files) | |
3313 | AC_SUBST(local_prefix) | |
3314 | AC_SUBST(md_file) | |
3315 | AC_SUBST(objc_boehm_gc) | |
3316 | AC_SUBST(out_file) | |
3317 | AC_SUBST(out_object_file) | |
3318 | AC_SUBST(stage_prefix_set_by_configure) | |
3319 | AC_SUBST(quoted_stage_prefix_set_by_configure) | |
3320 | AC_SUBST(thread_file) | |
3321 | AC_SUBST(tm_file_list) | |
3322 | AC_SUBST(tm_include_list) | |
3323 | AC_SUBST(tm_defines) | |
3324 | AC_SUBST(tm_p_file_list) | |
3325 | AC_SUBST(tm_p_include_list) | |
3326 | AC_SUBST(xm_file_list) | |
3327 | AC_SUBST(xm_include_list) | |
3328 | AC_SUBST(xm_defines) | |
3329 | AC_SUBST(c_target_objs) | |
3330 | AC_SUBST(cxx_target_objs) | |
3331 | AC_SUBST(target_cpu_default) | |
3332 | ||
3333 | AC_SUBST_FILE(language_hooks) | |
3334 | ||
3335 | # Echo link setup. | |
3336 | if test x${build} = x${host} ; then | |
3337 | if test x${host} = x${target} ; then | |
3338 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
3339 | else | |
3340 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
3341 | echo " from ${host} to ${target}." 1>&2 | |
3342 | fi | |
3343 | else | |
3344 | if test x${host} = x${target} ; then | |
3345 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
3346 | echo " for ${target}." 1>&2 | |
3347 | else | |
3348 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
3349 | echo " from ${host} to ${target}." 1>&2 | |
3350 | fi | |
3351 | fi | |
3352 | ||
3353 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) | |
3354 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
3355 | ||
3356 | # Configure the subdirectories | |
3357 | # AC_CONFIG_SUBDIRS($subdirs) | |
3358 | ||
3359 | # Create the Makefile | |
3360 | # and configure language subdirectories | |
3361 | AC_CONFIG_FILES($all_outputs) | |
3362 | ||
3363 | AC_CONFIG_COMMANDS([default], | |
3364 | [ | |
3365 | case ${CONFIG_HEADERS} in | |
3366 | *auto-host.h:config.in*) | |
3367 | echo > cstamp-h ;; | |
3368 | esac | |
3369 | # Make sure all the subdirs exist. | |
3370 | for d in $subdirs doc build | |
3371 | do | |
3372 | test -d $d || mkdir $d | |
3373 | done | |
3374 | # If the host supports symlinks, point stage[1234] at ../stage[1234] so | |
3375 | # bootstrapping and the installation procedure can still use | |
3376 | # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks, | |
3377 | # FLAGS_TO_PASS has been modified to solve the problem there. | |
3378 | # This is virtually a duplicate of what happens in configure.lang; we do | |
3379 | # an extra check to make sure this only happens if ln -s can be used. | |
3380 | case "$LN_S" in | |
3381 | *-s*) | |
3382 | for d in ${subdirs} ; do | |
3383 | STARTDIR=`${PWDCMD-pwd}` | |
3384 | cd $d | |
3385 | for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include | |
3386 | do | |
3387 | rm -f $t | |
3388 | $LN_S ../$t $t 2>/dev/null | |
3389 | done | |
3390 | cd $STARTDIR | |
3391 | done | |
3392 | ;; | |
3393 | esac | |
3394 | ], | |
3395 | [subdirs='$subdirs']) | |
3396 | AC_OUTPUT |