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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, 2005, 2006, 2007 | |
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, 51 Franklin Street, Fifth Floor, Boston, MA | |
22 | #02110-1301, 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 | gcc_version=`cat $srcdir/BASE-VER` | |
34 | ||
35 | # Determine the host, build, and target systems | |
36 | AC_CANONICAL_BUILD | |
37 | AC_CANONICAL_HOST | |
38 | AC_CANONICAL_TARGET | |
39 | ||
40 | # Determine the noncanonical target name, for directory use. | |
41 | ACX_NONCANONICAL_TARGET | |
42 | ||
43 | # Determine the target- and build-specific subdirectories | |
44 | GCC_TOPLEV_SUBDIRS | |
45 | ||
46 | # Set program_transform_name | |
47 | AC_ARG_PROGRAM | |
48 | ||
49 | # Check for bogus environment variables. | |
50 | # Test if LIBRARY_PATH contains the notation for the current directory | |
51 | # since this would lead to problems installing/building glibc. | |
52 | # LIBRARY_PATH contains the current directory if one of the following | |
53 | # is true: | |
54 | # - one of the terminals (":" and ";") is the first or last sign | |
55 | # - two terminals occur directly after each other | |
56 | # - the path contains an element with a dot in it | |
57 | AC_MSG_CHECKING(LIBRARY_PATH variable) | |
58 | changequote(,)dnl | |
59 | case ${LIBRARY_PATH} in | |
60 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
61 | library_path_setting="contains current directory" | |
62 | ;; | |
63 | *) | |
64 | library_path_setting="ok" | |
65 | ;; | |
66 | esac | |
67 | changequote([,])dnl | |
68 | AC_MSG_RESULT($library_path_setting) | |
69 | if test "$library_path_setting" != "ok"; then | |
70 | AC_MSG_ERROR([ | |
71 | *** LIBRARY_PATH shouldn't contain the current directory when | |
72 | *** building gcc. Please change the environment variable | |
73 | *** and run configure again.]) | |
74 | fi | |
75 | ||
76 | # Test if GCC_EXEC_PREFIX contains the notation for the current directory | |
77 | # since this would lead to problems installing/building glibc. | |
78 | # GCC_EXEC_PREFIX contains the current directory if one of the following | |
79 | # is true: | |
80 | # - one of the terminals (":" and ";") is the first or last sign | |
81 | # - two terminals occur directly after each other | |
82 | # - the path contains an element with a dot in it | |
83 | AC_MSG_CHECKING(GCC_EXEC_PREFIX variable) | |
84 | changequote(,)dnl | |
85 | case ${GCC_EXEC_PREFIX} in | |
86 | [:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* ) | |
87 | gcc_exec_prefix_setting="contains current directory" | |
88 | ;; | |
89 | *) | |
90 | gcc_exec_prefix_setting="ok" | |
91 | ;; | |
92 | esac | |
93 | changequote([,])dnl | |
94 | AC_MSG_RESULT($gcc_exec_prefix_setting) | |
95 | if test "$gcc_exec_prefix_setting" != "ok"; then | |
96 | AC_MSG_ERROR([ | |
97 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
98 | *** building gcc. Please change the environment variable | |
99 | *** and run configure again.]) | |
100 | fi | |
101 | ||
102 | # ----------- | |
103 | # Directories | |
104 | # ----------- | |
105 | ||
106 | # Specify the local prefix | |
107 | local_prefix= | |
108 | AC_ARG_WITH(local-prefix, | |
109 | [ --with-local-prefix=DIR specifies directory to put local include], | |
110 | [case "${withval}" in | |
111 | yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;; | |
112 | no) ;; | |
113 | *) local_prefix=$with_local_prefix ;; | |
114 | esac]) | |
115 | ||
116 | # Default local prefix if it is empty | |
117 | if test x$local_prefix = x; then | |
118 | local_prefix=/usr/local | |
119 | fi | |
120 | ||
121 | # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only | |
122 | # passed in by the toplevel make and thus we'd get different behavior | |
123 | # depending on where we built the sources. | |
124 | gcc_gxx_include_dir= | |
125 | # Specify the g++ header file directory | |
126 | AC_ARG_WITH(gxx-include-dir, | |
127 | [ --with-gxx-include-dir=DIR | |
128 | specifies directory to put g++ header files], | |
129 | [case "${withval}" in | |
130 | yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;; | |
131 | no) ;; | |
132 | *) gcc_gxx_include_dir=$with_gxx_include_dir ;; | |
133 | esac]) | |
134 | ||
135 | # This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO. | |
136 | if test x${gcc_gxx_include_dir} = x; then | |
137 | if test x${enable_version_specific_runtime_libs} = xyes; then | |
138 | gcc_gxx_include_dir='${libsubdir}/include/c++' | |
139 | else | |
140 | libstdcxx_incdir='include/c++/$(version)' | |
141 | if test x$host != x$target; then | |
142 | libstdcxx_incdir="$target_alias/$libstdcxx_incdir" | |
143 | fi | |
144 | changequote(<<, >>)dnl | |
145 | gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/$libstdcxx_incdir" | |
146 | changequote([, ])dnl | |
147 | fi | |
148 | fi | |
149 | ||
150 | AC_ARG_WITH(cpp_install_dir, | |
151 | [ --with-cpp-install-dir=DIR | |
152 | install the user visible C preprocessor in DIR | |
153 | (relative to PREFIX) as well as PREFIX/bin], | |
154 | [if test x$withval = xyes; then | |
155 | AC_MSG_ERROR([option --with-cpp-install-dir requires an argument]) | |
156 | elif test x$withval != xno; then | |
157 | cpp_install_dir=$withval | |
158 | fi]) | |
159 | ||
160 | # We would like to our source tree to be readonly. However when releases or | |
161 | # pre-releases are generated, the flex/bison generated files as well as the | |
162 | # various formats of manuals need to be included along with the rest of the | |
163 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
164 | # just that. | |
165 | ||
166 | AC_MSG_CHECKING([whether to place generated files in the source directory]) | |
167 | dnl generated-files-in-srcdir is disabled by default | |
168 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
169 | [ --enable-generated-files-in-srcdir | |
170 | put copies of generated files in source dir | |
171 | intended for creating source tarballs for users | |
172 | without texinfo bison or flex.], | |
173 | generated_files_in_srcdir=$enableval, | |
174 | generated_files_in_srcdir=no) | |
175 | ||
176 | AC_MSG_RESULT($generated_files_in_srcdir) | |
177 | ||
178 | if test "$generated_files_in_srcdir" = "yes"; then | |
179 | GENINSRC='' | |
180 | else | |
181 | GENINSRC='#' | |
182 | fi | |
183 | AC_SUBST(GENINSRC) | |
184 | ||
185 | # ------------------- | |
186 | # Find default linker | |
187 | # ------------------- | |
188 | ||
189 | # With GNU ld | |
190 | AC_ARG_WITH(gnu-ld, | |
191 | [ --with-gnu-ld arrange to work with GNU ld.], | |
192 | gnu_ld_flag="$with_gnu_ld", | |
193 | gnu_ld_flag=no) | |
194 | ||
195 | # With pre-defined ld | |
196 | AC_ARG_WITH(ld, | |
197 | [ --with-ld arrange to use the specified ld (full pathname)], | |
198 | DEFAULT_LINKER="$with_ld") | |
199 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
200 | if test ! -x "$DEFAULT_LINKER"; then | |
201 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) | |
202 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
203 | gnu_ld_flag=yes | |
204 | fi | |
205 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", | |
206 | [Define to enable the use of a default linker.]) | |
207 | fi | |
208 | ||
209 | AC_MSG_CHECKING([whether a default linker was specified]) | |
210 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
211 | if test x"$gnu_ld_flag" = x"no"; then | |
212 | AC_MSG_RESULT([yes ($DEFAULT_LINKER)]) | |
213 | else | |
214 | AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)]) | |
215 | fi | |
216 | else | |
217 | AC_MSG_RESULT(no) | |
218 | fi | |
219 | ||
220 | # With demangler in GNU ld | |
221 | AC_ARG_WITH(demangler-in-ld, | |
222 | [ --with-demangler-in-ld try to use demangler in GNU ld.], | |
223 | demangler_in_ld="$with_demangler_in_ld", | |
224 | demangler_in_ld=no) | |
225 | ||
226 | # ---------------------- | |
227 | # Find default assembler | |
228 | # ---------------------- | |
229 | ||
230 | # With GNU as | |
231 | AC_ARG_WITH(gnu-as, | |
232 | [ --with-gnu-as arrange to work with GNU as], | |
233 | gas_flag="$with_gnu_as", | |
234 | gas_flag=no) | |
235 | ||
236 | AC_ARG_WITH(as, | |
237 | [ --with-as arrange to use the specified as (full pathname)], | |
238 | DEFAULT_ASSEMBLER="$with_as") | |
239 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
240 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
241 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) | |
242 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
243 | gas_flag=yes | |
244 | fi | |
245 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", | |
246 | [Define to enable the use of a default assembler.]) | |
247 | fi | |
248 | ||
249 | AC_MSG_CHECKING([whether a default assembler was specified]) | |
250 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
251 | if test x"$gas_flag" = x"no"; then | |
252 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
253 | else | |
254 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) | |
255 | fi | |
256 | else | |
257 | AC_MSG_RESULT(no) | |
258 | fi | |
259 | ||
260 | # --------------- | |
261 | # Find C compiler | |
262 | # --------------- | |
263 | ||
264 | # If a non-executable a.out is present (e.g. created by GNU as above even if | |
265 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
266 | # file, even when creating an executable, so an execution test fails. | |
267 | # Remove possible default executable files to avoid this. | |
268 | # | |
269 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
270 | # Autoconf includes it. | |
271 | rm -f a.out a.exe b.out | |
272 | ||
273 | # Find the native compiler | |
274 | AC_PROG_CC | |
275 | AM_PROG_CC_C_O | |
276 | # autoconf is lame and doesn't give us any substitution variable for this. | |
277 | if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then | |
278 | NO_MINUS_C_MINUS_O=yes | |
279 | else | |
280 | OUTPUT_OPTION='-o $@' | |
281 | fi | |
282 | AC_SUBST(NO_MINUS_C_MINUS_O) | |
283 | AC_SUBST(OUTPUT_OPTION) | |
284 | ||
285 | # Remove the -O2: for historical reasons, unless bootstrapping we prefer | |
286 | # optimizations to be activated explicitly by the toplevel. | |
287 | case "$CC" in | |
288 | */prev-gcc/xgcc*) ;; | |
289 | *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;; | |
290 | esac | |
291 | AC_SUBST(CFLAGS) | |
292 | ||
293 | # ------------------------- | |
294 | # Check C compiler features | |
295 | # ------------------------- | |
296 | ||
297 | AC_PROG_CPP | |
298 | AC_C_INLINE | |
299 | ||
300 | # sizeof(char) is 1 by definition. | |
301 | AC_CHECK_SIZEOF(void *) | |
302 | AC_CHECK_SIZEOF(short) | |
303 | AC_CHECK_SIZEOF(int) | |
304 | AC_CHECK_SIZEOF(long) | |
305 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) | |
306 | AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)]) | |
307 | ||
308 | # --------------------- | |
309 | # Warnings and checking | |
310 | # --------------------- | |
311 | ||
312 | # Check $CC warning features (if it's GCC). | |
313 | # We want to use -pedantic, but we don't want warnings about | |
314 | # * 'long long' | |
315 | # * variadic macros | |
316 | # * overlong strings | |
317 | # So, we only use -pedantic if we can disable those warnings. | |
318 | ||
319 | AC_CACHE_CHECK( | |
320 | [whether ${CC} accepts -Wno-long-long], | |
321 | [ac_cv_prog_cc_w_no_long_long], | |
322 | [save_CFLAGS="$CFLAGS" | |
323 | CFLAGS="-Wno-long-long" | |
324 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
325 | [ac_cv_prog_cc_w_no_long_long=yes], | |
326 | [ac_cv_prog_cc_w_no_long_long=no]) | |
327 | CFLAGS="$save_CFLAGS" | |
328 | ]) | |
329 | ||
330 | AC_CACHE_CHECK( | |
331 | [whether ${CC} accepts -Wno-variadic-macros], | |
332 | [ac_cv_prog_cc_w_no_variadic_macros], | |
333 | [save_CFLAGS="$CFLAGS" | |
334 | CFLAGS="-Wno-variadic-macros" | |
335 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
336 | [ac_cv_prog_cc_w_no_variadic_macros=yes], | |
337 | [ac_cv_prog_cc_w_no_variadic_macros=no]) | |
338 | CFLAGS="$save_CFLAGS" | |
339 | ]) | |
340 | ||
341 | AC_CACHE_CHECK( | |
342 | [whether ${CC} accepts -Wno-overlength-strings], | |
343 | [ac_cv_prog_cc_w_no_overlength_strings], | |
344 | [save_CFLAGS="$CFLAGS" | |
345 | CFLAGS="-Wno-overlength-strings" | |
346 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
347 | [ac_cv_prog_cc_w_no_overlength_strings=yes], | |
348 | [ac_cv_prog_cc_w_no_overlength_strings=no]) | |
349 | CFLAGS="$save_CFLAGS" | |
350 | ]) | |
351 | ||
352 | strict_warn= | |
353 | if test $ac_cv_prog_cc_w_no_long_long = yes \ | |
354 | && test $ac_cv_prog_cc_w_no_variadic_macros = yes \ | |
355 | && test $ac_cv_prog_cc_w_no_overlength_strings = yes ; then | |
356 | strict_warn="-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings" | |
357 | fi | |
358 | ||
359 | # Add -Wold-style-definition if it's accepted | |
360 | AC_CACHE_CHECK( | |
361 | [whether ${CC} accepts -Wold-style-definition], | |
362 | [ac_cv_prog_cc_w_old_style_definition], | |
363 | [save_CFLAGS="$CFLAGS" | |
364 | CFLAGS="-Wold-style-definition" | |
365 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
366 | [ac_cv_prog_cc_w_old_style_definition=yes], | |
367 | [ac_cv_prog_cc_w_old_style_definition=no]) | |
368 | CFLAGS="$save_CFLAGS" | |
369 | ]) | |
370 | if test $ac_cv_prog_cc_w_old_style_definition = yes ; then | |
371 | strict_warn="${strict_warn} -Wold-style-definition" | |
372 | fi | |
373 | ||
374 | # Add -Wmissing-format-attribute if it's accepted | |
375 | AC_CACHE_CHECK( | |
376 | [whether ${CC} accepts -Wmissing-format-attribute], | |
377 | [ac_cv_prog_cc_w_missing_format_attribute], | |
378 | [save_CFLAGS="$CFLAGS" | |
379 | CFLAGS="-Wmissing-format-attribute" | |
380 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
381 | [ac_cv_prog_cc_w_missing_format_attribute=yes], | |
382 | [ac_cv_prog_cc_w_missing_format_attribute=no]) | |
383 | CFLAGS="$save_CFLAGS" | |
384 | ]) | |
385 | if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then | |
386 | strict_warn="${strict_warn} -Wmissing-format-attribute" | |
387 | fi | |
388 | ||
389 | # Enable -Werror, period. | |
390 | AC_ARG_ENABLE(werror_always, | |
391 | [ --enable-werror-always enable -Werror always], [], | |
392 | [enable_werror_always=no]) | |
393 | if test x${enable_werror_always} = xyes ; then | |
394 | strict_warn="${strict_warn} -Werror" | |
395 | fi | |
396 | AC_SUBST(strict_warn) | |
397 | ||
398 | # Get C++ compatibility warning flag, if supported. | |
399 | AC_CACHE_CHECK( | |
400 | [whether ${CC} accepts -Wc++-compat], | |
401 | [ac_cv_prog_cc_w_cxx_compat], | |
402 | [save_CFLAGS="$CFLAGS" | |
403 | CFLAGS="-Wc++-compat" | |
404 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
405 | [ac_cv_prog_cc_w_cxx_compat=yes], | |
406 | [ac_cv_prog_cc_w_cxx_compat=no]) | |
407 | CFLAGS="$save_CFLAGS" | |
408 | ]) | |
409 | if test x${ac_cv_prog_cc_w_cxx_compat} = xyes; then | |
410 | cxx_compat_warn="-Wc++-compat" | |
411 | fi | |
412 | AC_SUBST(cxx_compat_warn) | |
413 | ||
414 | ||
415 | # If the native compiler is GCC, we can enable warnings even in stage1. | |
416 | # That's useful for people building cross-compilers, or just running a | |
417 | # quick `make'. | |
418 | warn_cflags= | |
419 | if test "x$GCC" = "xyes"; then | |
420 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
421 | fi | |
422 | AC_SUBST(warn_cflags) | |
423 | ||
424 | # Enable expensive internal checks | |
425 | is_release= | |
426 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
427 | is_release=yes | |
428 | fi | |
429 | ||
430 | AC_ARG_ENABLE(checking, | |
431 | [ --enable-checking[=LIST] | |
432 | enable expensive run-time checks. With LIST, | |
433 | enable only specific categories of checks. | |
434 | Categories are: yes,no,all,none,release. | |
435 | Flags are: assert,fold,gc,gcac,misc, | |
436 | rtlflag,rtl,runtime,tree,valgrind.], | |
437 | [ac_checking_flags="${enableval}"],[ | |
438 | # Determine the default checks. | |
439 | if test x$is_release = x ; then | |
440 | ac_checking_flags=yes | |
441 | else | |
442 | ac_checking_flags=release | |
443 | fi]) | |
444 | ac_assert_checking=1 | |
445 | ac_checking= | |
446 | ac_fold_checking= | |
447 | ac_gc_checking= | |
448 | ac_gc_always_collect= | |
449 | ac_rtl_checking= | |
450 | ac_rtlflag_checking= | |
451 | ac_runtime_checking=1 | |
452 | ac_tree_checking= | |
453 | ac_valgrind_checking= | |
454 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," | |
455 | for check in $ac_checking_flags | |
456 | do | |
457 | case $check in | |
458 | # these set all the flags to specific states | |
459 | yes) ac_assert_checking=1 ; ac_checking=1 ; | |
460 | ac_fold_checking= ; ac_gc_checking=1 ; | |
461 | ac_gc_always_collect= ; ac_rtl_checking= ; | |
462 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; | |
463 | ac_tree_checking=1 ; ac_valgrind_checking= ;; | |
464 | no|none) ac_assert_checking= ; ac_checking= ; | |
465 | ac_fold_checking= ; ac_gc_checking= ; | |
466 | ac_gc_always_collect= ; ac_rtl_checking= ; | |
467 | ac_rtlflag_checking= ; ac_runtime_checking= ; | |
468 | ac_tree_checking= ; ac_valgrind_checking= ;; | |
469 | all) ac_assert_checking=1 ; ac_checking=1 ; | |
470 | ac_fold_checking=1 ; ac_gc_checking=1 ; | |
471 | ac_gc_always_collect=1 ; ac_rtl_checking=1 ; | |
472 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; | |
473 | ac_tree_checking=1 ; ac_valgrind_checking= ;; | |
474 | release) ac_assert_checking=1 ; ac_checking= ; | |
475 | ac_fold_checking= ; ac_gc_checking= ; | |
476 | ac_gc_always_collect= ; ac_rtl_checking= ; | |
477 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; | |
478 | ac_tree_checking= ; ac_valgrind_checking= ;; | |
479 | # these enable particular checks | |
480 | assert) ac_assert_checking=1 ;; | |
481 | fold) ac_fold_checking=1 ;; | |
482 | gc) ac_gc_checking=1 ;; | |
483 | gcac) ac_gc_always_collect=1 ;; | |
484 | misc) ac_checking=1 ;; | |
485 | rtl) ac_rtl_checking=1 ;; | |
486 | rtlflag) ac_rtlflag_checking=1 ;; | |
487 | runtime) ac_runtime_checking=1 ;; | |
488 | tree) ac_tree_checking=1 ;; | |
489 | valgrind) ac_valgrind_checking=1 ;; | |
490 | *) AC_MSG_ERROR(unknown check category $check) ;; | |
491 | esac | |
492 | done | |
493 | IFS="$ac_save_IFS" | |
494 | ||
495 | nocommon_flag="" | |
496 | if test x$ac_checking != x ; then | |
497 | AC_DEFINE(ENABLE_CHECKING, 1, | |
498 | [Define if you want more run-time sanity checks. This one gets a grab | |
499 | bag of miscellaneous but relatively cheap checks.]) | |
500 | nocommon_flag=-fno-common | |
501 | fi | |
502 | AC_SUBST(nocommon_flag) | |
503 | if test x$ac_assert_checking != x ; then | |
504 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
505 | [Define if you want assertions enabled. This is a cheap check.]) | |
506 | fi | |
507 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) | |
508 | if test x$ac_runtime_checking != x ; then | |
509 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
510 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
511 | fi | |
512 | if test x$ac_tree_checking != x ; then | |
513 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
514 | [Define if you want all operations on trees (the basic data | |
515 | structure of the front ends) to be checked for dynamic type safety | |
516 | at runtime. This is moderately expensive. The tree browser debugging | |
517 | routines will also be enabled by this option. | |
518 | ]) | |
519 | TREEBROWSER=tree-browser.o | |
520 | fi | |
521 | AC_SUBST(TREEBROWSER) | |
522 | if test x$ac_rtl_checking != x ; then | |
523 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
524 | [Define if you want all operations on RTL (the basic data structure | |
525 | of the optimizer and back end) to be checked for dynamic type safety | |
526 | at runtime. This is quite expensive.]) | |
527 | fi | |
528 | if test x$ac_rtlflag_checking != x ; then | |
529 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
530 | [Define if you want RTL flag accesses to be checked against the RTL | |
531 | codes that are supported for each access macro. This is relatively | |
532 | cheap.]) | |
533 | fi | |
534 | if test x$ac_gc_checking != x ; then | |
535 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
536 | [Define if you want the garbage collector to do object poisoning and | |
537 | other memory allocation checks. This is quite expensive.]) | |
538 | fi | |
539 | if test x$ac_gc_always_collect != x ; then | |
540 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
541 | [Define if you want the garbage collector to operate in maximally | |
542 | paranoid mode, validating the entire heap and collecting garbage at | |
543 | every opportunity. This is extremely expensive.]) | |
544 | fi | |
545 | if test x$ac_fold_checking != x ; then | |
546 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
547 | [Define if you want fold checked that it never destructs its argument. | |
548 | This is quite expensive.]) | |
549 | fi | |
550 | valgrind_path_defines= | |
551 | valgrind_command= | |
552 | ||
553 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
554 | dnl # an if statement. This was the source of very frustrating bugs | |
555 | dnl # in converting to autoconf 2.5x! | |
556 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
557 | ||
558 | if test x$ac_valgrind_checking != x ; then | |
559 | # It is certainly possible that there's valgrind but no valgrind.h. | |
560 | # GCC relies on making annotations so we must have both. | |
561 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) | |
562 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
563 | [[#include <valgrind/memcheck.h> | |
564 | #ifndef VALGRIND_DISCARD | |
565 | #error VALGRIND_DISCARD not defined | |
566 | #endif]])], | |
567 | [gcc_cv_header_valgrind_memcheck_h=yes], | |
568 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
569 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) | |
570 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) | |
571 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( | |
572 | [[#include <memcheck.h> | |
573 | #ifndef VALGRIND_DISCARD | |
574 | #error VALGRIND_DISCARD not defined | |
575 | #endif]])], | |
576 | [gcc_cv_header_memcheck_h=yes], | |
577 | [gcc_cv_header_memcheck_h=no]) | |
578 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) | |
579 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, | |
580 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
581 | if test "x$valgrind_path" = "x" \ | |
582 | || (test $have_valgrind_h = no \ | |
583 | && test $gcc_cv_header_memcheck_h = no \ | |
584 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
585 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
586 | fi | |
587 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
588 | valgrind_command="$valgrind_path -q" | |
589 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
590 | [Define if you want to run subprograms and generated programs | |
591 | through valgrind (a memory checker). This is extremely expensive.]) | |
592 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then | |
593 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
594 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
595 | fi | |
596 | if test $gcc_cv_header_memcheck_h = yes; then | |
597 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
598 | [Define if valgrind's memcheck.h header is installed.]) | |
599 | fi | |
600 | fi | |
601 | AC_SUBST(valgrind_path_defines) | |
602 | AC_SUBST(valgrind_command) | |
603 | ||
604 | AC_ARG_ENABLE(mapped-location, | |
605 | [ --enable-mapped-location location_t is fileline integer cookie],, | |
606 | enable_mapped_location=no) | |
607 | ||
608 | if test "$enable_mapped_location" = yes ; then | |
609 | AC_DEFINE(USE_MAPPED_LOCATION, 1, | |
610 | [Define if location_t is fileline integer cookie.]) | |
611 | fi | |
612 | ||
613 | # Enable code coverage collection | |
614 | AC_ARG_ENABLE(coverage, | |
615 | [ --enable-coverage[=LEVEL] | |
616 | enable compiler's code coverage collection. | |
617 | Use to measure compiler performance and locate | |
618 | unused parts of the compiler. With LEVEL, specify | |
619 | optimization. Values are opt, noopt, | |
620 | default is noopt], | |
621 | [case "${enableval}" in | |
622 | yes|noopt) | |
623 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" | |
624 | ;; | |
625 | opt) | |
626 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" | |
627 | ;; | |
628 | no) | |
629 | # a.k.a. --disable-coverage | |
630 | coverage_flags="" | |
631 | ;; | |
632 | *) | |
633 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
634 | ;; | |
635 | esac], | |
636 | [coverage_flags=""]) | |
637 | AC_SUBST(coverage_flags) | |
638 | ||
639 | AC_ARG_ENABLE(gather-detailed-mem-stats, | |
640 | [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [], | |
641 | [enable_gather_detailed_mem_stats=no]) | |
642 | if test x$enable_gather_detailed_mem_stats = xyes ; then | |
643 | AC_DEFINE(GATHER_STATISTICS, 1, | |
644 | [Define to enable detailed memory allocation stats gathering.]) | |
645 | fi | |
646 | ||
647 | # ------------------------------- | |
648 | # Miscenalleous configure options | |
649 | # ------------------------------- | |
650 | ||
651 | # With stabs | |
652 | AC_ARG_WITH(stabs, | |
653 | [ --with-stabs arrange to use stabs instead of host debug format], | |
654 | stabs="$with_stabs", | |
655 | stabs=no) | |
656 | ||
657 | # Determine whether or not multilibs are enabled. | |
658 | AC_ARG_ENABLE(multilib, | |
659 | [ --enable-multilib enable library support for multiple ABIs], | |
660 | [], [enable_multilib=yes]) | |
661 | AC_SUBST(enable_multilib) | |
662 | ||
663 | # Enable __cxa_atexit for C++. | |
664 | AC_ARG_ENABLE(__cxa_atexit, | |
665 | [ --enable-__cxa_atexit enable __cxa_atexit for C++], | |
666 | [], []) | |
667 | ||
668 | # Enable C extension for decimal float if target supports it. | |
669 | AC_ARG_ENABLE(decimal-float, | |
670 | [ --enable-decimal-float enable decimal float extension to C], | |
671 | [ | |
672 | if test x$enablevar = xyes ; then | |
673 | case $target in | |
674 | powerpc*-*-linux* | i?86*-*-linux*) | |
675 | enable_decimal_float=yes | |
676 | ;; | |
677 | *) | |
678 | AC_MSG_WARN(decimal float is not supported for this target, ignored) | |
679 | enable_decimal_float=no | |
680 | ;; | |
681 | esac | |
682 | fi | |
683 | ], [enable_decimal_float=no]) | |
684 | ||
685 | AC_SUBST(enable_decimal_float) | |
686 | ||
687 | dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi` | |
688 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, | |
689 | [Define to 1 to enable decimal float extension to C.]) | |
690 | ||
691 | # Enable threads | |
692 | # Pass with no value to take the default | |
693 | # Pass with a value to specify a thread package | |
694 | AC_ARG_ENABLE(threads, | |
695 | [ --enable-threads enable thread usage for target GCC | |
696 | --enable-threads=LIB use LIB thread package for target GCC],, | |
697 | [enable_threads='']) | |
698 | ||
699 | AC_ARG_ENABLE(tls, | |
700 | [ --enable-tls enable or disable generation of tls code | |
701 | overriding the assembler check for tls support], | |
702 | [ | |
703 | case $enable_tls in | |
704 | yes | no) ;; | |
705 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
706 | Valid choices are 'yes' and 'no'.]) ;; | |
707 | esac | |
708 | ], [enable_tls='']) | |
709 | ||
710 | AC_ARG_ENABLE(objc-gc, | |
711 | [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
712 | the GNU Objective-C runtime], | |
713 | if test x$enable_objc_gc = xno; then | |
714 | objc_boehm_gc='' | |
715 | else | |
716 | objc_boehm_gc=1 | |
717 | fi, | |
718 | objc_boehm_gc='') | |
719 | ||
720 | AC_ARG_WITH(dwarf2, | |
721 | [ --with-dwarf2 force the default debug format to be DWARF 2], | |
722 | dwarf2="$with_dwarf2", | |
723 | dwarf2=no) | |
724 | ||
725 | AC_ARG_ENABLE(shared, | |
726 | [ --disable-shared don't provide a shared libgcc], | |
727 | [ | |
728 | case $enable_shared in | |
729 | yes | no) ;; | |
730 | *) | |
731 | enable_shared=no | |
732 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
733 | for pkg in $enableval; do | |
734 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
735 | enable_shared=yes | |
736 | fi | |
737 | done | |
738 | IFS="$ac_save_ifs" | |
739 | ;; | |
740 | esac | |
741 | ], [enable_shared=yes]) | |
742 | AC_SUBST(enable_shared) | |
743 | ||
744 | AC_ARG_WITH(build-sysroot, | |
745 | [ --with-build-sysroot=sysroot | |
746 | use sysroot as the system root during the build]) | |
747 | ||
748 | AC_ARG_WITH(sysroot, | |
749 | [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.], | |
750 | [ | |
751 | case ${with_sysroot} in | |
752 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; | |
753 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; | |
754 | esac | |
755 | ||
756 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
757 | CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
758 | ||
759 | if test "x$exec_prefix" = xNONE; then | |
760 | if test "x$prefix" = xNONE; then | |
761 | test_prefix=/usr/local | |
762 | else | |
763 | test_prefix=$prefix | |
764 | fi | |
765 | else | |
766 | test_prefix=$exec_prefix | |
767 | fi | |
768 | case ${TARGET_SYSTEM_ROOT} in | |
769 | "${test_prefix}"|"${test_prefix}/"*|\ | |
770 | '${exec_prefix}'|'${exec_prefix}/'*) | |
771 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" | |
772 | TARGET_SYSTEM_ROOT_DEFINE="$t" | |
773 | ;; | |
774 | esac | |
775 | ], [ | |
776 | TARGET_SYSTEM_ROOT= | |
777 | TARGET_SYSTEM_ROOT_DEFINE= | |
778 | CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' | |
779 | ]) | |
780 | AC_SUBST(TARGET_SYSTEM_ROOT) | |
781 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
782 | AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
783 | ||
784 | # Build with intermodule optimisations | |
785 | AC_ARG_ENABLE(intermodule, | |
786 | [ --enable-intermodule build the compiler in one step], | |
787 | [case ${enable_intermodule} in | |
788 | yes) onestep="-onestep";; | |
789 | *) onestep="";; | |
790 | esac], | |
791 | [onestep=""]) | |
792 | AC_SUBST(onestep) | |
793 | ||
794 | # Sanity check enable_languages in case someone does not run the toplevel | |
795 | # configure # script. | |
796 | AC_ARG_ENABLE(languages, | |
797 | [ --enable-languages=LIST specify which front-ends to build], | |
798 | [case ,${enable_languages}, in | |
799 | ,,|,yes,) | |
800 | # go safe -- we cannot be much sure without the toplevel | |
801 | # configure's | |
802 | # analysis of which target libs are present and usable | |
803 | enable_languages=c | |
804 | ;; | |
805 | *,all,*) | |
806 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
807 | ;; | |
808 | *,c,*) | |
809 | ;; | |
810 | *) | |
811 | enable_languages=c,${enable_languages} | |
812 | ;; | |
813 | esac], | |
814 | [enable_languages=c]) | |
815 | ||
816 | # Used by documentation targets | |
817 | AC_SUBST(datarootdir) | |
818 | AC_SUBST(docdir) | |
819 | AC_SUBST(htmldir) | |
820 | ||
821 | # ------------------------- | |
822 | # Checks for other programs | |
823 | # ------------------------- | |
824 | ||
825 | AC_PROG_MAKE_SET | |
826 | ||
827 | # Find some useful tools | |
828 | AC_PROG_AWK | |
829 | # We need awk to create options.c and options.h. | |
830 | # Bail out if it's missing. | |
831 | case ${AWK} in | |
832 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
833 | esac | |
834 | ||
835 | gcc_AC_PROG_LN_S | |
836 | ACX_PROG_LN($LN_S) | |
837 | AC_PROG_RANLIB | |
838 | case "${host}" in | |
839 | *-*-darwin*) | |
840 | # By default, the Darwin ranlib will not treat common symbols as | |
841 | # definitions when building the archive table of contents. Other | |
842 | # ranlibs do that; pass an option to the Darwin ranlib that makes | |
843 | # it behave similarly. | |
844 | ranlib_flags="-c" | |
845 | ;; | |
846 | *) | |
847 | ranlib_flags="" | |
848 | esac | |
849 | AC_SUBST(ranlib_flags) | |
850 | ||
851 | gcc_AC_PROG_INSTALL | |
852 | ||
853 | # See if cmp has --ignore-initial. | |
854 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
855 | ||
856 | # See if we have the mktemp command. | |
857 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
858 | ||
859 | MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing" | |
860 | ||
861 | # See if makeinfo has been installed and is modern enough | |
862 | # that we can use it. | |
863 | gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, | |
864 | [GNU texinfo.* \([0-9][0-9.]*\)], | |
865 | [4.[4-9]*]) | |
866 | if test $gcc_cv_prog_makeinfo_modern = no; then | |
867 | MAKEINFO="$MISSING makeinfo" | |
868 | AC_MSG_WARN([ | |
869 | *** Makeinfo is missing or too old. | |
870 | *** Info documentation will not be built.]) | |
871 | BUILD_INFO= | |
872 | else | |
873 | BUILD_INFO=info | |
874 | fi | |
875 | AC_SUBST(BUILD_INFO) | |
876 | ||
877 | # Is pod2man recent enough to regenerate manpages? | |
878 | AC_MSG_CHECKING([for recent Pod::Man]) | |
879 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then | |
880 | AC_MSG_RESULT(yes) | |
881 | GENERATED_MANPAGES=generated-manpages | |
882 | else | |
883 | AC_MSG_RESULT(no) | |
884 | GENERATED_MANPAGES= | |
885 | fi | |
886 | AC_SUBST(GENERATED_MANPAGES) | |
887 | ||
888 | # How about lex? | |
889 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
890 | dnl LEXLIB is not useful in gcc. | |
891 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) | |
892 | ||
893 | # Bison? | |
894 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) | |
895 | ||
896 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
897 | # check for build == host before using them. | |
898 | ||
899 | # NM | |
900 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ | |
901 | && test -d ../binutils ; then | |
902 | NM='$(objdir)/../binutils/nm-new' | |
903 | else | |
904 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
905 | fi | |
906 | ||
907 | # AR | |
908 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ | |
909 | && test -d ../binutils ; then | |
910 | AR='$(objdir)/../binutils/ar' | |
911 | else | |
912 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
913 | fi | |
914 | ||
915 | ||
916 | # -------------------- | |
917 | # Checks for C headers | |
918 | # -------------------- | |
919 | ||
920 | AC_MSG_CHECKING(for GNU C library) | |
921 | AC_CACHE_VAL(gcc_cv_glibc, | |
922 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
923 | [[#include <features.h>]], [[ | |
924 | #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__) | |
925 | #error Not a GNU C library system | |
926 | #endif]])], | |
927 | [gcc_cv_glibc=yes], | |
928 | [gcc_cv_glibc=no])]) | |
929 | AC_MSG_RESULT($gcc_cv_glibc) | |
930 | if test $gcc_cv_glibc = yes; then | |
931 | AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library]) | |
932 | fi | |
933 | ||
934 | # Need to reject headers which give warnings, so that the -Werror bootstrap | |
935 | # works later. *sigh* This needs to come before all header checks. | |
936 | AC_PROG_CPP_WERROR | |
937 | ||
938 | AC_HEADER_STDC | |
939 | AC_HEADER_TIME | |
940 | ACX_HEADER_STRING | |
941 | AC_HEADER_SYS_WAIT | |
942 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ | |
943 | fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \ | |
944 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ | |
945 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) | |
946 | ||
947 | # Check for thread headers. | |
948 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
949 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
950 | ||
951 | # These tests can't be done till we know if we have limits.h. | |
952 | gcc_AC_C_CHAR_BIT | |
953 | AC_C_BIGENDIAN | |
954 | ||
955 | # -------- | |
956 | # UNSORTED | |
957 | # -------- | |
958 | ||
959 | ||
960 | # These libraries may be used by collect2. | |
961 | # We may need a special search path to get them linked. | |
962 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
963 | [save_LIBS="$LIBS" | |
964 | for libs in '' -lld -lmld \ | |
965 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ | |
966 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
967 | do | |
968 | LIBS="$libs" | |
969 | AC_TRY_LINK_FUNC(ldopen, | |
970 | [gcc_cv_collect2_libs="$libs"; break]) | |
971 | done | |
972 | LIBS="$save_LIBS" | |
973 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
974 | case $gcc_cv_collect2_libs in | |
975 | "none required") ;; | |
976 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
977 | esac | |
978 | AC_SUBST(COLLECT2_LIBS) | |
979 | ||
980 | # When building Ada code on Alpha, we need exc_resume which is usually in | |
981 | # -lexc. So test for it. | |
982 | save_LIBS="$LIBS" | |
983 | LIBS= | |
984 | AC_SEARCH_LIBS(exc_resume, exc) | |
985 | GNAT_LIBEXC="$LIBS" | |
986 | LIBS="$save_LIBS" | |
987 | AC_SUBST(GNAT_LIBEXC) | |
988 | ||
989 | # Some systems put ldexp and frexp in libm instead of libc; assume | |
990 | # they're both in the same place. jcf-dump needs them. | |
991 | save_LIBS="$LIBS" | |
992 | LIBS= | |
993 | AC_SEARCH_LIBS(ldexp, m) | |
994 | LDEXP_LIB="$LIBS" | |
995 | LIBS="$save_LIBS" | |
996 | AC_SUBST(LDEXP_LIB) | |
997 | ||
998 | # Use <inttypes.h> only if it exists, | |
999 | # doesn't clash with <sys/types.h>, and declares intmax_t. | |
1000 | AC_MSG_CHECKING(for inttypes.h) | |
1001 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
1002 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( | |
1003 | [[#include <sys/types.h> | |
1004 | #include <inttypes.h>]], | |
1005 | [[intmax_t i = -1;]])], | |
1006 | [gcc_cv_header_inttypes_h=yes], | |
1007 | [gcc_cv_header_inttypes_h=no])]) | |
1008 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) | |
1009 | if test $gcc_cv_header_inttypes_h = yes; then | |
1010 | AC_DEFINE(HAVE_INTTYPES_H, 1, | |
1011 | [Define if you have a working <inttypes.h> header file.]) | |
1012 | fi | |
1013 | ||
1014 | dnl Disabled until we have a complete test for buggy enum bitfields. | |
1015 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
1016 | ||
1017 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl | |
1018 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1019 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1020 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1021 | putchar_unlocked putc_unlocked) | |
1022 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \ | |
1023 | sysconf strsignal getrusage nl_langinfo scandir alphasort \ | |
1024 | gettimeofday mbstowcs wcswidth mmap mincore setlocale \ | |
1025 | gcc_UNLOCKED_FUNCS) | |
1026 | ||
1027 | if test x$ac_cv_func_mbstowcs = xyes; then | |
1028 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
1029 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> | |
1030 | int main() | |
1031 | { | |
1032 | mbstowcs(0, "", 0); | |
1033 | return 0; | |
1034 | }]])], | |
1035 | [gcc_cv_func_mbstowcs_works=yes], | |
1036 | [gcc_cv_func_mbstowcs_works=no], | |
1037 | [gcc_cv_func_mbstowcs_works=yes])]) | |
1038 | if test x$gcc_cv_func_mbstowcs_works = xyes; then | |
1039 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1040 | [Define this macro if mbstowcs does not crash when its | |
1041 | first argument is NULL.]) | |
1042 | fi | |
1043 | fi | |
1044 | ||
1045 | AC_CHECK_TYPE(ssize_t, int) | |
1046 | ||
1047 | # Try to determine the array type of the second argument of getgroups | |
1048 | # for the target system (int or gid_t). | |
1049 | AC_TYPE_GETGROUPS | |
1050 | if test "${target}" = "${build}"; then | |
1051 | TARGET_GETGROUPS_T=$ac_cv_type_getgroups | |
1052 | else | |
1053 | case "${target}" in | |
1054 | # This condition may need some tweaking. It should include all | |
1055 | # targets where the array type of the second argument of getgroups | |
1056 | # is int and the type of gid_t is not equivalent to int. | |
1057 | *-*-sunos* | *-*-ultrix*) | |
1058 | TARGET_GETGROUPS_T=int | |
1059 | ;; | |
1060 | *) | |
1061 | TARGET_GETGROUPS_T=gid_t | |
1062 | ;; | |
1063 | esac | |
1064 | fi | |
1065 | AC_SUBST(TARGET_GETGROUPS_T) | |
1066 | ||
1067 | gcc_AC_FUNC_MMAP_BLACKLIST | |
1068 | ||
1069 | case "${host}" in | |
1070 | *-*-*vms*) | |
1071 | # Under VMS, vfork works very differently than on Unix. The standard test | |
1072 | # won't work, and it isn't easily adaptable. It makes more sense to | |
1073 | # just force it. | |
1074 | ac_cv_func_vfork_works=yes | |
1075 | ;; | |
1076 | esac | |
1077 | AC_FUNC_FORK | |
1078 | ||
1079 | AM_ICONV | |
1080 | # Until we have in-tree GNU iconv: | |
1081 | LIBICONV_DEP= | |
1082 | AC_SUBST(LIBICONV_DEP) | |
1083 | ||
1084 | AM_LC_MESSAGES | |
1085 | ||
1086 | AM_LANGINFO_CODESET | |
1087 | ||
1088 | # We will need to find libiberty.h and ansidecl.h | |
1089 | saved_CFLAGS="$CFLAGS" | |
1090 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include" | |
1091 | gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \ | |
1092 | strsignal strstr strverscmp \ | |
1093 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ | |
1094 | free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[ | |
1095 | #include "ansidecl.h" | |
1096 | #include "system.h"]) | |
1097 | ||
1098 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ | |
1099 | #include "ansidecl.h" | |
1100 | #include "system.h" | |
1101 | #ifdef HAVE_SYS_RESOURCE_H | |
1102 | #include <sys/resource.h> | |
1103 | #endif | |
1104 | ]) | |
1105 | ||
1106 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1107 | #include "ansidecl.h" | |
1108 | #include "system.h" | |
1109 | #ifdef HAVE_SYS_RESOURCE_H | |
1110 | #include <sys/resource.h> | |
1111 | #endif | |
1112 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], | |
1113 | [Define to \`long' if <sys/resource.h> doesn't define.])]) | |
1114 | ||
1115 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible | |
1116 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1117 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1118 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
1119 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ | |
1120 | #include "ansidecl.h" | |
1121 | #include "system.h" | |
1122 | #ifdef HAVE_LDFCN_H | |
1123 | #undef FREAD | |
1124 | #undef FWRITE | |
1125 | #include <ldfcn.h> | |
1126 | #endif | |
1127 | ]) | |
1128 | ||
1129 | gcc_AC_CHECK_DECLS(times, , ,[ | |
1130 | #include "ansidecl.h" | |
1131 | #include "system.h" | |
1132 | #ifdef HAVE_SYS_TIMES_H | |
1133 | #include <sys/times.h> | |
1134 | #endif | |
1135 | ]) | |
1136 | ||
1137 | gcc_AC_CHECK_DECLS(sigaltstack, , ,[ | |
1138 | #include "ansidecl.h" | |
1139 | #include "system.h" | |
1140 | #include <signal.h> | |
1141 | ]) | |
1142 | ||
1143 | # More time-related stuff. | |
1144 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
1145 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1146 | #include "ansidecl.h" | |
1147 | #include "system.h" | |
1148 | #ifdef HAVE_SYS_TIMES_H | |
1149 | #include <sys/times.h> | |
1150 | #endif | |
1151 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) | |
1152 | if test $ac_cv_struct_tms = yes; then | |
1153 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1154 | [Define if <sys/times.h> defines struct tms.]) | |
1155 | fi | |
1156 | ||
1157 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1158 | # revisit after autoconf 2.50. | |
1159 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
1160 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ | |
1161 | #include "ansidecl.h" | |
1162 | #include "system.h" | |
1163 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) | |
1164 | if test $gcc_cv_type_clock_t = yes; then | |
1165 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1166 | [Define if <time.h> defines clock_t.]) | |
1167 | fi | |
1168 | ||
1169 | # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. | |
1170 | CFLAGS="$saved_CFLAGS" | |
1171 | ||
1172 | gcc_AC_INITFINI_ARRAY | |
1173 | ||
1174 | # mkdir takes a single argument on some systems. | |
1175 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG | |
1176 | ||
1177 | # File extensions | |
1178 | manext='.1' | |
1179 | objext='.o' | |
1180 | AC_SUBST(manext) | |
1181 | AC_SUBST(objext) | |
1182 | ||
1183 | # With Setjmp/Longjmp based exception handling. | |
1184 | AC_ARG_ENABLE(sjlj-exceptions, | |
1185 | [ --enable-sjlj-exceptions | |
1186 | arrange to use setjmp/longjmp exception handling], | |
1187 | [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1188 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1189 | [Define 0/1 to force the choice for exception handling model.])]) | |
1190 | ||
1191 | # For platforms with the unwind ABI which includes an unwind library, | |
1192 | # libunwind, we can choose to use the system libunwind. | |
1193 | AC_ARG_WITH(system-libunwind, | |
1194 | [ --with-system-libunwind use installed libunwind]) | |
1195 | ||
1196 | # config.gcc also contains tests of with_system_libunwind. | |
1197 | if test x$with_system_libunwind = xyes; then | |
1198 | AC_DEFINE(HAVE_GETIPINFO, 1, | |
1199 | [Define to 1 if system unwind library has _Unwind_GetIPInfo.]) | |
1200 | fi | |
1201 | ||
1202 | # -------------------------------------------------------- | |
1203 | # Build, host, and target specific configuration fragments | |
1204 | # -------------------------------------------------------- | |
1205 | ||
1206 | # Collect build-machine-specific information. | |
1207 | . ${srcdir}/config.build | |
1208 | ||
1209 | # Collect host-machine-specific information. | |
1210 | . ${srcdir}/config.host | |
1211 | ||
1212 | target_gtfiles= | |
1213 | ||
1214 | # Collect target-machine-specific information. | |
1215 | . ${srcdir}/config.gcc | |
1216 | ||
1217 | extra_objs="${host_extra_objs} ${extra_objs}" | |
1218 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" | |
1219 | ||
1220 | # Default the target-machine variables that were not explicitly set. | |
1221 | if test x"$tm_file" = x | |
1222 | then tm_file=$cpu_type/$cpu_type.h; fi | |
1223 | ||
1224 | if test x"$extra_headers" = x | |
1225 | then extra_headers=; fi | |
1226 | ||
1227 | if test x$md_file = x | |
1228 | then md_file=$cpu_type/$cpu_type.md; fi | |
1229 | ||
1230 | if test x$out_file = x | |
1231 | then out_file=$cpu_type/$cpu_type.c; fi | |
1232 | ||
1233 | if test x"$tmake_file" = x | |
1234 | then tmake_file=$cpu_type/t-$cpu_type | |
1235 | fi | |
1236 | ||
1237 | if test x"$dwarf2" = xyes | |
1238 | then tm_file="$tm_file tm-dwarf2.h" | |
1239 | fi | |
1240 | ||
1241 | # Say what files are being used for the output code and MD file. | |
1242 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." | |
1243 | echo "Using \`$srcdir/config/$md_file' as machine description file." | |
1244 | ||
1245 | # If any of the xm_file variables contain nonexistent files, warn | |
1246 | # about them and drop them. | |
1247 | ||
1248 | bx= | |
1249 | for x in $build_xm_file; do | |
1250 | if test -f $srcdir/config/$x | |
1251 | then bx="$bx $x" | |
1252 | else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1253 | fi | |
1254 | done | |
1255 | build_xm_file="$bx" | |
1256 | ||
1257 | hx= | |
1258 | for x in $host_xm_file; do | |
1259 | if test -f $srcdir/config/$x | |
1260 | then hx="$hx $x" | |
1261 | else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1262 | fi | |
1263 | done | |
1264 | host_xm_file="$hx" | |
1265 | ||
1266 | tx= | |
1267 | for x in $xm_file; do | |
1268 | if test -f $srcdir/config/$x | |
1269 | then tx="$tx $x" | |
1270 | else AC_MSG_WARN($srcdir/config/$x does not exist.) | |
1271 | fi | |
1272 | done | |
1273 | xm_file="$tx" | |
1274 | ||
1275 | count=a | |
1276 | for f in $tm_file; do | |
1277 | count=${count}x | |
1278 | done | |
1279 | if test $count = ax; then | |
1280 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." | |
1281 | else | |
1282 | echo "Using the following target machine macro files:" | |
1283 | for f in $tm_file; do | |
1284 | echo " $srcdir/config/$f" | |
1285 | done | |
1286 | fi | |
1287 | ||
1288 | if test x$need_64bit_hwint = xyes; then | |
1289 | AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, | |
1290 | [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) | |
1291 | fi | |
1292 | ||
1293 | if test x$use_long_long_for_widest_fast_int = xyes; then | |
1294 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1295 | [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still | |
1296 | efficiently supported by the host hardware.]) | |
1297 | fi | |
1298 | ||
1299 | count=a | |
1300 | for f in $host_xm_file; do | |
1301 | count=${count}x | |
1302 | done | |
1303 | if test $count = a; then | |
1304 | : | |
1305 | elif test $count = ax; then | |
1306 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." | |
1307 | else | |
1308 | echo "Using the following host machine macro files:" | |
1309 | for f in $host_xm_file; do | |
1310 | echo " $srcdir/config/$f" | |
1311 | done | |
1312 | fi | |
1313 | echo "Using ${out_host_hook_obj} for host machine hooks." | |
1314 | ||
1315 | if test "$host_xm_file" != "$build_xm_file"; then | |
1316 | count=a | |
1317 | for f in $build_xm_file; do | |
1318 | count=${count}x | |
1319 | done | |
1320 | if test $count = a; then | |
1321 | : | |
1322 | elif test $count = ax; then | |
1323 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." | |
1324 | else | |
1325 | echo "Using the following build machine macro files:" | |
1326 | for f in $build_xm_file; do | |
1327 | echo " $srcdir/config/$f" | |
1328 | done | |
1329 | fi | |
1330 | fi | |
1331 | ||
1332 | case ${host} in | |
1333 | powerpc*-*-darwin*) | |
1334 | AC_CACHE_CHECK([whether mcontext_t fields have underscores], | |
1335 | gcc_cv_mcontext_underscores, | |
1336 | AC_COMPILE_IFELSE([ | |
1337 | #include <sys/cdefs.h> | |
1338 | #include <sys/signal.h> | |
1339 | #include <ucontext.h> | |
1340 | int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; } | |
1341 | ], | |
1342 | gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes)) | |
1343 | if test $gcc_cv_mcontext_underscores = yes; then | |
1344 | AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl | |
1345 | [mcontext_t fields start with __]) | |
1346 | fi | |
1347 | ;; | |
1348 | esac | |
1349 | ||
1350 | # --------- | |
1351 | # Threading | |
1352 | # --------- | |
1353 | ||
1354 | # Check if a valid thread package | |
1355 | case ${enable_threads} in | |
1356 | "" | no) | |
1357 | # No threads | |
1358 | target_thread_file='single' | |
1359 | ;; | |
1360 | yes) | |
1361 | # default | |
1362 | target_thread_file='single' | |
1363 | ;; | |
1364 | aix | dce | gnat | irix | posix | posix95 | rtems | \ | |
1365 | single | solaris | vxworks | win32 ) | |
1366 | target_thread_file=${enable_threads} | |
1367 | ;; | |
1368 | *) | |
1369 | echo "${enable_threads} is an unknown thread package" 1>&2 | |
1370 | exit 1 | |
1371 | ;; | |
1372 | esac | |
1373 | ||
1374 | if test x${thread_file} = x; then | |
1375 | # No thread file set by target-specific clauses in config.gcc, | |
1376 | # so use file chosen by default logic above | |
1377 | thread_file=${target_thread_file} | |
1378 | fi | |
1379 | ||
1380 | # Make gthr-default.h if we have a thread file. | |
1381 | gthread_flags= | |
1382 | if test $thread_file != single; then | |
1383 | rm -f gthr-default.h | |
1384 | echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h | |
1385 | gthread_flags=-DHAVE_GTHR_DEFAULT | |
1386 | fi | |
1387 | AC_SUBST(gthread_flags) | |
1388 | ||
1389 | # -------- | |
1390 | # UNSORTED | |
1391 | # -------- | |
1392 | ||
1393 | use_cxa_atexit=no | |
1394 | if test x$enable___cxa_atexit = xyes || \ | |
1395 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
1396 | if test x$host = x$target; then | |
1397 | case $host in | |
1398 | # mingw32 doesn't have __cxa_atexit but uses atexit registration | |
1399 | # keyed to flag_use_cxa_atexit | |
1400 | *-*-mingw32*) | |
1401 | use_cxa_atexit=yes | |
1402 | ;; | |
1403 | *) | |
1404 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1405 | [echo "__cxa_atexit can't be enabled on this target"]) | |
1406 | ;; | |
1407 | esac | |
1408 | else | |
1409 | # We can't check for __cxa_atexit when building a cross, so assume | |
1410 | # it is available | |
1411 | use_cxa_atexit=yes | |
1412 | fi | |
1413 | if test x$use_cxa_atexit = xyes; then | |
1414 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2, | |
1415 | [Define if you want to use __cxa_atexit, rather than atexit, to | |
1416 | register C++ destructors for local statics and global objects. | |
1417 | This is essential for fully standards-compliant handling of | |
1418 | destructors, but requires __cxa_atexit in libc.]) | |
1419 | fi | |
1420 | fi | |
1421 | ||
1422 | use_getipinfo=yes | |
1423 | if test x$with_system_libunwind = xyes; then | |
1424 | if test x$host = x$target; then | |
1425 | AC_SEARCH_LIBS(_Unwind_GetIPInfo, unwind,, [use_getipinfo=no]) | |
1426 | fi | |
1427 | fi | |
1428 | GCC_TARGET_TEMPLATE(HAVE_GETIPINFO) | |
1429 | if test x$use_getipinfo = xyes; then | |
1430 | AC_DEFINE(HAVE_GETIPINFO, 1, | |
1431 | [Define to 1 if system unwind library has _Unwind_GetIPInfo.]) | |
1432 | else | |
1433 | echo "The system unwind library does not support _Unwind_GetIPInfo." | |
1434 | fi | |
1435 | ||
1436 | # Look for a file containing extra machine modes. | |
1437 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then | |
1438 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
1439 | AC_SUBST(extra_modes_file) | |
1440 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", | |
1441 | [Define to the name of a file containing a list of extra machine modes | |
1442 | for this architecture.]) | |
1443 | fi | |
1444 | ||
1445 | # Convert extra_options into a form suitable for Makefile use. | |
1446 | extra_opt_files= | |
1447 | for f in $extra_options; do | |
1448 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
1449 | done | |
1450 | AC_SUBST(extra_opt_files) | |
1451 | ||
1452 | # auto-host.h is the file containing items generated by autoconf and is | |
1453 | # the first file included by config.h. | |
1454 | # If host=build, it is correct to have bconfig include auto-host.h | |
1455 | # as well. If host!=build, we are in error and need to do more | |
1456 | # work to find out the build config parameters. | |
1457 | if test x$host = x$build | |
1458 | then | |
1459 | build_auto=auto-host.h | |
1460 | else | |
1461 | # We create a subdir, then run autoconf in the subdir. | |
1462 | # To prevent recursion we set host and build for the new | |
1463 | # invocation of configure to the build for this invocation | |
1464 | # of configure. | |
1465 | tempdir=build.$$ | |
1466 | rm -rf $tempdir | |
1467 | mkdir $tempdir | |
1468 | cd $tempdir | |
1469 | case ${srcdir} in | |
1470 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; | |
1471 | *) realsrcdir=../${srcdir};; | |
1472 | esac | |
1473 | saved_CFLAGS="${CFLAGS}" | |
1474 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ | |
1475 | ${realsrcdir}/configure \ | |
1476 | --enable-languages=${enable_languages-all} \ | |
1477 | --target=$target_alias --host=$build_alias --build=$build_alias | |
1478 | CFLAGS="${saved_CFLAGS}" | |
1479 | ||
1480 | # We just finished tests for the build machine, so rename | |
1481 | # the file auto-build.h in the gcc directory. | |
1482 | mv auto-host.h ../auto-build.h | |
1483 | cd .. | |
1484 | rm -rf $tempdir | |
1485 | build_auto=auto-build.h | |
1486 | fi | |
1487 | AC_SUBST(build_subdir) | |
1488 | ||
1489 | tm_file="${tm_file} defaults.h" | |
1490 | tm_p_file="${tm_p_file} tm-preds.h" | |
1491 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" | |
1492 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
1493 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. | |
1494 | # put this back in temporarily. | |
1495 | xm_file="auto-host.h ansidecl.h ${xm_file}" | |
1496 | ||
1497 | # -------- | |
1498 | # UNSORTED | |
1499 | # -------- | |
1500 | ||
1501 | changequote(,)dnl | |
1502 | # Compile in configure arguments. | |
1503 | if test -f configargs.h ; then | |
1504 | # Being re-configured. | |
1505 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` | |
1506 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1507 | else | |
1508 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1509 | fi | |
1510 | ||
1511 | # Double all backslashes and backslash all quotes to turn | |
1512 | # gcc_config_arguments into a C string. | |
1513 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1514 | $gcc_config_arguments | |
1515 | EOF | |
1516 | gcc_config_arguments_str=`cat conftest.out` | |
1517 | rm -f conftest.out | |
1518 | ||
1519 | cat > configargs.h <<EOF | |
1520 | /* Generated automatically. */ | |
1521 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; | |
1522 | static const char thread_model[] = "$thread_file"; | |
1523 | ||
1524 | static const struct { | |
1525 | const char *name, *value; | |
1526 | } configure_default_options[] = $configure_default_options; | |
1527 | EOF | |
1528 | changequote([,])dnl | |
1529 | ||
1530 | # Internationalization | |
1531 | ZW_GNU_GETTEXT_SISTER_DIR | |
1532 | ||
1533 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get | |
1534 | # -liconv on the link line twice. | |
1535 | case "$LIBINTL" in *$LIBICONV*) | |
1536 | LIBICONV= ;; | |
1537 | esac | |
1538 | ||
1539 | AC_ARG_ENABLE(secureplt, | |
1540 | [ --enable-secureplt enable -msecure-plt by default for PowerPC], | |
1541 | [], []) | |
1542 | ||
1543 | # Windows32 Registry support for specifying GCC installation paths. | |
1544 | AC_ARG_ENABLE(win32-registry, | |
1545 | [ --disable-win32-registry | |
1546 | disable lookup of installation paths in the | |
1547 | Registry on Windows hosts | |
1548 | --enable-win32-registry enable registry lookup (default) | |
1549 | --enable-win32-registry=KEY | |
1550 | use KEY instead of GCC version as the last portion | |
1551 | of the registry key],,) | |
1552 | ||
1553 | case $host_os in | |
1554 | win32 | pe | cygwin* | mingw32* | uwin*) | |
1555 | if test "x$enable_win32_registry" != xno; then | |
1556 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1557 | fi | |
1558 | ||
1559 | if test "x$enable_win32_registry" != xno; then | |
1560 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1561 | [Define to 1 if installation paths should be looked up in the Windows | |
1562 | Registry. Ignored on non-Windows hosts.]) | |
1563 | ||
1564 | if test "x$enable_win32_registry" != xyes \ | |
1565 | && test "x$enable_win32_registry" != x; then | |
1566 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1567 | [Define to be the last component of the Windows registry key under which | |
1568 | to look for installation paths. The full key used will be | |
1569 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1570 | The default is the GCC version number.]) | |
1571 | fi | |
1572 | fi | |
1573 | ;; | |
1574 | esac | |
1575 | ||
1576 | # Get an absolute path to the GCC top-level source directory | |
1577 | holddir=`${PWDCMD-pwd}` | |
1578 | cd $srcdir | |
1579 | topdir=`${PWDCMD-pwd}` | |
1580 | cd $holddir | |
1581 | ||
1582 | # Conditionalize the makefile for this host machine. | |
1583 | xmake_file= | |
1584 | for f in ${host_xmake_file} | |
1585 | do | |
1586 | if test -f ${srcdir}/config/$f | |
1587 | then | |
1588 | xmake_file="${xmake_file} \$(srcdir)/config/$f" | |
1589 | fi | |
1590 | done | |
1591 | ||
1592 | # Conditionalize the makefile for this target machine. | |
1593 | tmake_file_= | |
1594 | for f in ${tmake_file} | |
1595 | do | |
1596 | if test -f ${srcdir}/config/$f | |
1597 | then | |
1598 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" | |
1599 | fi | |
1600 | done | |
1601 | tmake_file="${tmake_file_}" | |
1602 | ||
1603 | # This is a terrible hack which will go away some day. | |
1604 | host_cc_for_libada=${CC} | |
1605 | AC_SUBST(host_cc_for_libada) | |
1606 | ||
1607 | out_object_file=`basename $out_file .c`.o | |
1608 | ||
1609 | tm_file_list="options.h" | |
1610 | tm_include_list="options.h" | |
1611 | for f in $tm_file; do | |
1612 | case $f in | |
1613 | ./* ) | |
1614 | f=`echo $f | sed 's/^..//'` | |
1615 | tm_file_list="${tm_file_list} $f" | |
1616 | tm_include_list="${tm_include_list} $f" | |
1617 | ;; | |
1618 | defaults.h ) | |
1619 | tm_file_list="${tm_file_list} \$(srcdir)/$f" | |
1620 | tm_include_list="${tm_include_list} $f" | |
1621 | ;; | |
1622 | * ) | |
1623 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1624 | tm_include_list="${tm_include_list} config/$f" | |
1625 | ;; | |
1626 | esac | |
1627 | done | |
1628 | ||
1629 | tm_p_file_list= | |
1630 | tm_p_include_list= | |
1631 | for f in $tm_p_file; do | |
1632 | case $f in | |
1633 | tm-preds.h ) | |
1634 | tm_p_file_list="${tm_p_file_list} $f" | |
1635 | tm_p_include_list="${tm_p_include_list} $f" | |
1636 | ;; | |
1637 | * ) | |
1638 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1639 | tm_p_include_list="${tm_p_include_list} config/$f" | |
1640 | esac | |
1641 | done | |
1642 | ||
1643 | xm_file_list= | |
1644 | xm_include_list= | |
1645 | for f in $xm_file; do | |
1646 | case $f in | |
1647 | ansidecl.h ) | |
1648 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
1649 | xm_include_list="${xm_include_list} $f" | |
1650 | ;; | |
1651 | auto-host.h ) | |
1652 | xm_file_list="${xm_file_list} $f" | |
1653 | xm_include_list="${xm_include_list} $f" | |
1654 | ;; | |
1655 | * ) | |
1656 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
1657 | xm_include_list="${xm_include_list} config/$f" | |
1658 | ;; | |
1659 | esac | |
1660 | done | |
1661 | ||
1662 | host_xm_file_list= | |
1663 | host_xm_include_list= | |
1664 | for f in $host_xm_file; do | |
1665 | case $f in | |
1666 | ansidecl.h ) | |
1667 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" | |
1668 | host_xm_include_list="${host_xm_include_list} $f" | |
1669 | ;; | |
1670 | auto-host.h ) | |
1671 | host_xm_file_list="${host_xm_file_list} $f" | |
1672 | host_xm_include_list="${host_xm_include_list} $f" | |
1673 | ;; | |
1674 | * ) | |
1675 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
1676 | host_xm_include_list="${host_xm_include_list} config/$f" | |
1677 | ;; | |
1678 | esac | |
1679 | done | |
1680 | ||
1681 | build_xm_file_list= | |
1682 | for f in $build_xm_file; do | |
1683 | case $f in | |
1684 | ansidecl.h ) | |
1685 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" | |
1686 | build_xm_include_list="${build_xm_include_list} $f" | |
1687 | ;; | |
1688 | auto-build.h | auto-host.h ) | |
1689 | build_xm_file_list="${build_xm_file_list} $f" | |
1690 | build_xm_include_list="${build_xm_include_list} $f" | |
1691 | ;; | |
1692 | * ) | |
1693 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
1694 | build_xm_include_list="${build_xm_include_list} config/$f" | |
1695 | ;; | |
1696 | esac | |
1697 | done | |
1698 | ||
1699 | # Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a | |
1700 | # cross-compiler which does not use the native headers and libraries. | |
1701 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. | |
1702 | CROSS= AC_SUBST(CROSS) | |
1703 | ALL=all.internal AC_SUBST(ALL) | |
1704 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
1705 | ||
1706 | if test "x$with_build_sysroot" != x; then | |
1707 | build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)' | |
1708 | else | |
1709 | # This value is used, even on a native system, because | |
1710 | # CROSS_SYSTEM_HEADER_DIR is just | |
1711 | # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR). | |
1712 | build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)' | |
1713 | fi | |
1714 | ||
1715 | if test x$host != x$target | |
1716 | then | |
1717 | CROSS="-DCROSS_DIRECTORY_STRUCTURE" | |
1718 | ALL=all.cross | |
1719 | SYSTEM_HEADER_DIR=$build_system_header_dir | |
1720 | case "$host","$target" in | |
1721 | # Darwin crosses can use the host system's libraries and headers, | |
1722 | # because of the fat library support. Of course, it must be the | |
1723 | # same version of Darwin on both sides. Allow the user to | |
1724 | # just say --target=foo-darwin without a version number to mean | |
1725 | # "the version on this system". | |
1726 | *-*-darwin*,*-*-darwin*) | |
1727 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
1728 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
1729 | if test $hostos = $targetos -o $targetos = darwin ; then | |
1730 | CROSS= | |
1731 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' | |
1732 | with_headers=yes | |
1733 | fi | |
1734 | ;; | |
1735 | ||
1736 | i?86-*-*,x86_64-*-* \ | |
1737 | | powerpc*-*-*,powerpc64*-*-*) | |
1738 | CROSS="$CROSS -DNATIVE_CROSS" ;; | |
1739 | esac | |
1740 | elif test "x$TARGET_SYSTEM_ROOT" != x; then | |
1741 | SYSTEM_HEADER_DIR=$build_system_header_dir | |
1742 | fi | |
1743 | ||
1744 | # If this is a cross-compiler that does not | |
1745 | # have its own set of headers then define | |
1746 | # inhibit_libc | |
1747 | ||
1748 | # If this is using newlib, without having the headers available now, | |
1749 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
1750 | # This prevents libgcc2 from containing any code which requires libc | |
1751 | # support. | |
1752 | inhibit_libc=false | |
1753 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || | |
1754 | test x$with_newlib = xyes ; } && | |
1755 | { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then | |
1756 | inhibit_libc=true | |
1757 | fi | |
1758 | AC_SUBST(inhibit_libc) | |
1759 | ||
1760 | # When building gcc with a cross-compiler, we need to adjust things so | |
1761 | # that the generator programs are still built with the native compiler. | |
1762 | # Also, we cannot run fixincludes or fix-header. | |
1763 | ||
1764 | # These are the normal (build=host) settings: | |
1765 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) | |
1766 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) | |
1767 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) | |
1768 | ||
1769 | # Possibly disable fixproto, on a per-target basis. | |
1770 | case ${use_fixproto} in | |
1771 | no) | |
1772 | STMP_FIXPROTO= | |
1773 | ;; | |
1774 | yes) | |
1775 | STMP_FIXPROTO=stmp-fixproto | |
1776 | ;; | |
1777 | esac | |
1778 | AC_SUBST(STMP_FIXPROTO) | |
1779 | ||
1780 | # And these apply if build != host, or we are generating coverage data | |
1781 | if test x$build != x$host || test "x$coverage_flags" != x | |
1782 | then | |
1783 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' | |
1784 | ||
1785 | if test "x$TARGET_SYSTEM_ROOT" = x; then | |
1786 | if test "x$STMP_FIXPROTO" != x; then | |
1787 | STMP_FIXPROTO=stmp-install-fixproto | |
1788 | fi | |
1789 | fi | |
1790 | fi | |
1791 | ||
1792 | # Expand extra_headers to include complete path. | |
1793 | # This substitutes for lots of t-* files. | |
1794 | extra_headers_list= | |
1795 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. | |
1796 | for file in ${extra_headers} ; do | |
1797 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
1798 | done | |
1799 | ||
1800 | # Define collect2 in Makefile. | |
1801 | case $host_can_use_collect2 in | |
1802 | no) collect2= ;; | |
1803 | *) collect2='collect2$(exeext)' ;; | |
1804 | esac | |
1805 | AC_SUBST([collect2]) | |
1806 | ||
1807 | # Add a definition of USE_COLLECT2 if system wants one. | |
1808 | case $use_collect2 in | |
1809 | no) use_collect2= ;; | |
1810 | "") ;; | |
1811 | *) | |
1812 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
1813 | xm_defines="${xm_defines} USE_COLLECT2" | |
1814 | case $host_can_use_collect2 in | |
1815 | no) | |
1816 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
1817 | ;; | |
1818 | esac | |
1819 | ;; | |
1820 | esac | |
1821 | ||
1822 | # --------------------------- | |
1823 | # Assembler & linker features | |
1824 | # --------------------------- | |
1825 | ||
1826 | # Identify the assembler which will work hand-in-glove with the newly | |
1827 | # built GCC, so that we can examine its features. This is the assembler | |
1828 | # which will be driven by the driver program. | |
1829 | # | |
1830 | # If build != host, and we aren't building gas in-tree, we identify a | |
1831 | # build->target assembler and hope that it will have the same features | |
1832 | # as the host->target assembler we'll be using. | |
1833 | gcc_cv_gas_major_version= | |
1834 | gcc_cv_gas_minor_version= | |
1835 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas | |
1836 | ||
1837 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
1838 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
1839 | if test -x "$DEFAULT_ASSEMBLER"; then | |
1840 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
1841 | elif test -f $gcc_cv_as_gas_srcdir/configure.in \ | |
1842 | && test -f ../gas/Makefile \ | |
1843 | && test x$build = x$host; then | |
1844 | gcc_cv_as=../gas/as-new$build_exeext | |
1845 | elif test -x as$build_exeext; then | |
1846 | # Build using assembler in the current directory. | |
1847 | gcc_cv_as=./as$build_exeext | |
1848 | elif test -x $AS_FOR_TARGET; then | |
1849 | gcc_cv_as="$AS_FOR_TARGET" | |
1850 | else | |
1851 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
1852 | fi]) | |
1853 | ||
1854 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
1855 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
1856 | ||
1857 | AC_MSG_CHECKING(what assembler to use) | |
1858 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
1859 | # Single tree build which includes gas. We want to prefer it | |
1860 | # over whatever linker top-level may have detected, since | |
1861 | # we'll use what we're building after installation anyway. | |
1862 | AC_MSG_RESULT(newly built gas) | |
1863 | in_tree_gas=yes | |
1864 | _gcc_COMPUTE_GAS_VERSION | |
1865 | in_tree_gas_is_elf=no | |
1866 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
1867 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
1868 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
1869 | then | |
1870 | in_tree_gas_is_elf=yes | |
1871 | fi | |
1872 | else | |
1873 | AC_MSG_RESULT($gcc_cv_as) | |
1874 | in_tree_gas=no | |
1875 | fi | |
1876 | ||
1877 | # Identify the linker which will work hand-in-glove with the newly | |
1878 | # built GCC, so that we can examine its features. This is the linker | |
1879 | # which will be driven by the driver program. | |
1880 | # | |
1881 | # If build != host, and we aren't building gas in-tree, we identify a | |
1882 | # build->target linker and hope that it will have the same features | |
1883 | # as the host->target linker we'll be using. | |
1884 | gcc_cv_gld_major_version= | |
1885 | gcc_cv_gld_minor_version= | |
1886 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
1887 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
1888 | ||
1889 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
1890 | if test -x "$DEFAULT_LINKER"; then | |
1891 | gcc_cv_ld="$DEFAULT_LINKER" | |
1892 | elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ | |
1893 | && test -f ../ld/Makefile \ | |
1894 | && test x$build = x$host; then | |
1895 | gcc_cv_ld=../ld/ld-new$build_exeext | |
1896 | elif test -x collect-ld$build_exeext; then | |
1897 | # Build using linker in the current directory. | |
1898 | gcc_cv_ld=./collect-ld$build_exeext | |
1899 | elif test -x $LD_FOR_TARGET; then | |
1900 | gcc_cv_ld="$LD_FOR_TARGET" | |
1901 | else | |
1902 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
1903 | fi]) | |
1904 | ||
1905 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld | |
1906 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
1907 | ||
1908 | AC_MSG_CHECKING(what linker to use) | |
1909 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then | |
1910 | # Single tree build which includes ld. We want to prefer it | |
1911 | # over whatever linker top-level may have detected, since | |
1912 | # we'll use what we're building after installation anyway. | |
1913 | AC_MSG_RESULT(newly built ld) | |
1914 | in_tree_ld=yes | |
1915 | in_tree_ld_is_elf=no | |
1916 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
1917 | || grep 'EMUL = .*linux' ../ld/Makefile \ | |
1918 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
1919 | in_tree_ld_is_elf=yes | |
1920 | fi | |
1921 | 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 | |
1922 | do | |
1923 | changequote(,)dnl | |
1924 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f` | |
1925 | if test x$gcc_cv_gld_version != x; then | |
1926 | break | |
1927 | fi | |
1928 | done | |
1929 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` | |
1930 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
1931 | changequote([,])dnl | |
1932 | else | |
1933 | AC_MSG_RESULT($gcc_cv_ld) | |
1934 | in_tree_ld=no | |
1935 | fi | |
1936 | ||
1937 | # Figure out what nm we will be using. | |
1938 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils | |
1939 | AS_VAR_SET_IF(gcc_cv_nm,, [ | |
1940 | if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
1941 | && test -f ../binutils/Makefile \ | |
1942 | && test x$build = x$host; then | |
1943 | gcc_cv_nm=../binutils/nm-new$build_exeext | |
1944 | elif test -x nm$build_exeext; then | |
1945 | gcc_cv_nm=./nm$build_exeext | |
1946 | elif test -x $NM_FOR_TARGET; then | |
1947 | gcc_cv_nm="$NM_FOR_TARGET" | |
1948 | else | |
1949 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
1950 | fi]) | |
1951 | ||
1952 | AC_MSG_CHECKING(what nm to use) | |
1953 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then | |
1954 | # Single tree build which includes binutils. | |
1955 | AC_MSG_RESULT(newly built nm) | |
1956 | in_tree_nm=yes | |
1957 | else | |
1958 | AC_MSG_RESULT($gcc_cv_nm) | |
1959 | in_tree_nm=no | |
1960 | fi | |
1961 | ||
1962 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
1963 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
1964 | ||
1965 | # Figure out what objdump we will be using. | |
1966 | AS_VAR_SET_IF(gcc_cv_objdump,, [ | |
1967 | if test -f $gcc_cv_binutils_srcdir/configure.in \ | |
1968 | && test -f ../binutils/Makefile \ | |
1969 | && test x$build = x$host; then | |
1970 | # Single tree build which includes binutils. | |
1971 | gcc_cv_objdump=../binutils/objdump$build_exeext | |
1972 | elif test -x objdump$build_exeext; then | |
1973 | gcc_cv_objdump=./objdump$build_exeext | |
1974 | elif test -x $OBJDUMP_FOR_TARGET; then | |
1975 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" | |
1976 | else | |
1977 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
1978 | fi]) | |
1979 | ||
1980 | AC_MSG_CHECKING(what objdump to use) | |
1981 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then | |
1982 | # Single tree build which includes binutils. | |
1983 | AC_MSG_RESULT(newly built objdump) | |
1984 | elif test x$gcc_cv_objdump = x; then | |
1985 | AC_MSG_RESULT(not found) | |
1986 | else | |
1987 | AC_MSG_RESULT($gcc_cv_objdump) | |
1988 | fi | |
1989 | ||
1990 | # Figure out what assembler alignment features are present. | |
1991 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, | |
1992 | [2,6,0],, | |
1993 | [.balign 4 | |
1994 | .p2align 2],, | |
1995 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
1996 | [Define if your assembler supports .balign and .p2align.])]) | |
1997 | ||
1998 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
1999 | [2,8,0],, | |
2000 | [.p2align 4,,7],, | |
2001 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2002 | [Define if your assembler supports specifying the maximum number | |
2003 | of bytes to skip when using the GAS .p2align command.])]) | |
2004 | ||
2005 | gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16, | |
2006 | [2,8,0],, | |
2007 | [.literal16],, | |
2008 | [AC_DEFINE(HAVE_GAS_LITERAL16, 1, | |
2009 | [Define if your assembler supports .literal16.])]) | |
2010 | ||
2011 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, | |
2012 | [elf,2,9,0],, | |
2013 | [conftest_label1: .word 0 | |
2014 | .subsection -1 | |
2015 | conftest_label2: .word 0 | |
2016 | .previous], | |
2017 | [if test x$gcc_cv_nm != x; then | |
2018 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2019 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2020 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2021 | then : | |
2022 | else gcc_cv_as_subsection_m1=yes | |
2023 | fi | |
2024 | rm -f conftest.nm1 conftest.nm2 | |
2025 | fi], | |
2026 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2027 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2028 | emitting at the beginning of your section.])]) | |
2029 | ||
2030 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2031 | [2,2,0],, | |
2032 | [ .weak foobar],, | |
2033 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2034 | ||
2035 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, | |
2036 | [2,17,0],, | |
2037 | [ .weakref foobar, barfnot],, | |
2038 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2039 | ||
2040 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, | |
2041 | [2,15,91],, | |
2042 | [ .SPACE $TEXT$ | |
2043 | .NSUBSPA $CODE$,COMDAT],, | |
2044 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2045 | ||
2046 | # .hidden needs to be supported in both the assembler and the linker, | |
2047 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2048 | # This is irritatingly difficult to feature test for; we have to check the | |
2049 | # date string after the version number. If we've got an in-tree | |
2050 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2051 | # to be safe. | |
2052 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
2053 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, | |
2054 | [elf,2,13,0],, | |
2055 | [ .hidden foobar | |
2056 | foobar:]) | |
2057 | ||
2058 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, | |
2059 | [if test $in_tree_ld = yes ; then | |
2060 | gcc_cv_ld_hidden=no | |
2061 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2062 | && test $in_tree_ld_is_elf = yes; then | |
2063 | gcc_cv_ld_hidden=yes | |
2064 | fi | |
2065 | else | |
2066 | gcc_cv_ld_hidden=yes | |
2067 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` | |
2068 | if echo "$ld_ver" | grep GNU > /dev/null; then | |
2069 | changequote(,)dnl | |
2070 | ld_vers=`echo $ld_ver | sed -n \ | |
2071 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2072 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2073 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2074 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
2075 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
2076 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
2077 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ -].*$,\1,p'` | |
2078 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` | |
2079 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` | |
2080 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2081 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
2082 | if test 0"$ld_date" -lt 20020404; then | |
2083 | if test -n "$ld_date"; then | |
2084 | # If there was date string, but was earlier than 2002-04-04, fail | |
2085 | gcc_cv_ld_hidden=no | |
2086 | elif test -z "$ld_vers"; then | |
2087 | # If there was no date string nor ld version number, something is wrong | |
2088 | gcc_cv_ld_hidden=no | |
2089 | else | |
2090 | test -z "$ld_vers_patch" && ld_vers_patch=0 | |
2091 | if test "$ld_vers_major" -lt 2; then | |
2092 | gcc_cv_ld_hidden=no | |
2093 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2094 | gcc_cv_ld_hidden="no" | |
2095 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2096 | gcc_cv_ld_hidden=no | |
2097 | fi | |
2098 | fi | |
2099 | changequote([,])dnl | |
2100 | fi | |
2101 | else | |
2102 | case "${target}" in | |
2103 | hppa64*-*-hpux* | ia64*-*-hpux*) | |
2104 | gcc_cv_ld_hidden=yes | |
2105 | ;; | |
2106 | *) | |
2107 | gcc_cv_ld_hidden=no | |
2108 | ;; | |
2109 | esac | |
2110 | fi | |
2111 | fi]) | |
2112 | libgcc_visibility=no | |
2113 | AC_SUBST(libgcc_visibility) | |
2114 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) | |
2115 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then | |
2116 | libgcc_visibility=yes | |
2117 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2118 | [Define if your assembler and linker support .hidden.]) | |
2119 | fi | |
2120 | ||
2121 | # Check if we have .[us]leb128, and support symbol arithmetic with it. | |
2122 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2123 | [elf,2,11,0],, | |
2124 | [ .data | |
2125 | .uleb128 L2 - L1 | |
2126 | L1: | |
2127 | .uleb128 1280 | |
2128 | .sleb128 -1010 | |
2129 | L2:], | |
2130 | [# GAS versions before 2.11 do not support uleb128, | |
2131 | # despite appearing to. | |
2132 | # ??? There exists an elf-specific test that will crash | |
2133 | # the assembler. Perhaps it's better to figure out whether | |
2134 | # arbitrary sections are supported and try the test. | |
2135 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` | |
2136 | if echo "$as_ver" | grep GNU > /dev/null; then | |
2137 | changequote(,)dnl | |
2138 | as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'` | |
2139 | as_major=`echo $as_ver | sed 's/\..*//'` | |
2140 | as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'` | |
2141 | changequote([,])dnl | |
2142 | if test $as_major -eq 2 && test $as_minor -lt 11 | |
2143 | then : | |
2144 | else gcc_cv_as_leb128=yes | |
2145 | fi | |
2146 | fi], | |
2147 | [AC_DEFINE(HAVE_AS_LEB128, 1, | |
2148 | [Define if your assembler supports .sleb128 and .uleb128.])]) | |
2149 | ||
2150 | # GAS versions up to and including 2.11.0 may mis-optimize | |
2151 | # .eh_frame data. | |
2152 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2153 | [elf,2,12,0],, | |
2154 | [ .text | |
2155 | .LFB1: | |
2156 | .4byte 0 | |
2157 | .L1: | |
2158 | .4byte 0 | |
2159 | .LFE1: | |
2160 | .section .eh_frame,"aw",@progbits | |
2161 | __FRAME_BEGIN__: | |
2162 | .4byte .LECIE1-.LSCIE1 | |
2163 | .LSCIE1: | |
2164 | .4byte 0x0 | |
2165 | .byte 0x1 | |
2166 | .ascii "z\0" | |
2167 | .byte 0x1 | |
2168 | .byte 0x78 | |
2169 | .byte 0x1a | |
2170 | .byte 0x0 | |
2171 | .byte 0x4 | |
2172 | .4byte 1 | |
2173 | .p2align 1 | |
2174 | .LECIE1: | |
2175 | .LSFDE1: | |
2176 | .4byte .LEFDE1-.LASFDE1 | |
2177 | .LASFDE1: | |
2178 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
2179 | .4byte .LFB1 | |
2180 | .4byte .LFE1-.LFB1 | |
2181 | .byte 0x4 | |
2182 | .4byte .LFE1-.LFB1 | |
2183 | .byte 0x4 | |
2184 | .4byte .L1-.LFB1 | |
2185 | .LEFDE1:], | |
2186 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. | |
2187 | cat > conftest.lit <<EOF | |
2188 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... | |
2189 | 0010 01000000 12000000 18000000 00000000 ................ | |
2190 | 0020 08000000 04080000 0044 .........D @&t@ | |
2191 | EOF | |
2192 | cat > conftest.big <<EOF | |
2193 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... | |
2194 | 0010 00000001 00000012 00000018 00000000 ................ | |
2195 | 0020 00000008 04000000 0844 .........D @&t@ | |
2196 | EOF | |
2197 | # If the assembler didn't choke, and we can objdump, | |
2198 | # and we got the correct data, then succeed. | |
2199 | # The text in the here-document typically retains its unix-style line | |
2200 | # endings, while the output of objdump will use host line endings. | |
2201 | # Therefore, use diff -b for the comparisons. | |
2202 | if test x$gcc_cv_objdump != x \ | |
2203 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2204 | | tail -3 > conftest.got \ | |
2205 | && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \ | |
2206 | || diff -b conftest.big conftest.got > /dev/null 2>&1; } | |
2207 | then | |
2208 | gcc_cv_as_eh_frame=yes | |
2209 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2210 | gcc_cv_as_eh_frame=buggy | |
2211 | else | |
2212 | # Uh oh, what do we do now? | |
2213 | gcc_cv_as_eh_frame=no | |
2214 | fi]) | |
2215 | ||
2216 | if test $gcc_cv_as_eh_frame = buggy; then | |
2217 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
2218 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
2219 | fi | |
2220 | ||
2221 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2222 | [elf,2,12,0], [--fatal-warnings], | |
2223 | [.section .rodata.str, "aMS", @progbits, 1]) | |
2224 | if test $gcc_cv_as_shf_merge = no; then | |
2225 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2226 | [elf,2,12,0], [--fatal-warnings], | |
2227 | [.section .rodata.str, "aMS", %progbits, 1]) | |
2228 | fi | |
2229 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, | |
2230 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
2231 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
2232 | ||
2233 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group, | |
2234 | [elf,2,16,0], [--fatal-warnings], | |
2235 | [.section .text,"axG",@progbits,.foo,comdat]) | |
2236 | if test $gcc_cv_as_comdat_group = yes; then | |
2237 | gcc_cv_as_comdat_group_percent=no | |
2238 | else | |
2239 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent, | |
2240 | [elf,2,16,0], [--fatal-warnings], | |
2241 | [.section .text,"axG",%progbits,.foo,comdat]) | |
2242 | fi | |
2243 | if test $in_tree_ld != yes && test x"$ld_vers" != x; then | |
2244 | comdat_group=yes | |
2245 | if test 0"$ld_date" -lt 20050308; then | |
2246 | if test -n "$ld_date"; then | |
2247 | # If there was date string, but was earlier than 2005-03-08, fail | |
2248 | comdat_group=no | |
2249 | elif test "$ld_vers_major" -lt 2; then | |
2250 | comdat_group=no | |
2251 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
2252 | comdat_group=no | |
2253 | fi | |
2254 | fi | |
2255 | else | |
2256 | # assume linkers other than GNU ld don't support COMDAT group | |
2257 | comdat_group=no | |
2258 | fi | |
2259 | if test $comdat_group = no; then | |
2260 | gcc_cv_as_comdat_group=no | |
2261 | gcc_cv_as_comdat_group_percent=no | |
2262 | fi | |
2263 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
2264 | [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], | |
2265 | [Define 0/1 if your assembler and linker support COMDAT groups.]) | |
2266 | ||
2267 | # Thread-local storage - the check is heavily parametrized. | |
2268 | conftest_s= | |
2269 | tls_first_major= | |
2270 | tls_first_minor= | |
2271 | tls_as_opt= | |
2272 | case "$target" in | |
2273 | changequote(,)dnl | |
2274 | alpha*-*-*) | |
2275 | conftest_s=' | |
2276 | .section ".tdata","awT",@progbits | |
2277 | foo: .long 25 | |
2278 | .text | |
2279 | ldq $27,__tls_get_addr($29) !literal!1 | |
2280 | lda $16,foo($29) !tlsgd!1 | |
2281 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
2282 | ldq $27,__tls_get_addr($29) !literal!2 | |
2283 | lda $16,foo($29) !tlsldm!2 | |
2284 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
2285 | ldq $1,foo($29) !gotdtprel | |
2286 | ldah $2,foo($29) !dtprelhi | |
2287 | lda $3,foo($2) !dtprello | |
2288 | lda $4,foo($29) !dtprel | |
2289 | ldq $1,foo($29) !gottprel | |
2290 | ldah $2,foo($29) !tprelhi | |
2291 | lda $3,foo($2) !tprello | |
2292 | lda $4,foo($29) !tprel' | |
2293 | tls_first_major=2 | |
2294 | tls_first_minor=13 | |
2295 | tls_as_opt=--fatal-warnings | |
2296 | ;; | |
2297 | frv*-*-*) | |
2298 | conftest_s=' | |
2299 | .section ".tdata","awT",@progbits | |
2300 | x: .long 25 | |
2301 | .text | |
2302 | call #gettlsoff(x)' | |
2303 | tls_first_major=2 | |
2304 | tls_first_minor=14 | |
2305 | ;; | |
2306 | hppa*-*-linux*) | |
2307 | conftest_s=' | |
2308 | t1: .reg %r20 | |
2309 | t2: .reg %r21 | |
2310 | gp: .reg %r19 | |
2311 | .section ".tdata","awT",@progbits | |
2312 | foo: .long 25 | |
2313 | .text | |
2314 | .align 4 | |
2315 | addil LT%foo-$tls_gdidx$,gp | |
2316 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
2317 | b __tls_get_addr | |
2318 | nop | |
2319 | addil LT%foo-$tls_ldidx$,gp | |
2320 | b __tls_get_addr | |
2321 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
2322 | addil LR%foo-$tls_dtpoff$,%ret0 | |
2323 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
2324 | mfctl %cr27,%t1 | |
2325 | addil LT%foo-$tls_ieoff$,gp | |
2326 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
2327 | add %t1,%t2,%t3 | |
2328 | mfctl %cr27,%t1 | |
2329 | addil LR%foo-$tls_leoff$,%t1 | |
2330 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
2331 | tls_first_major=2 | |
2332 | tls_first_minor=15 | |
2333 | tls_as_opt=--fatal-warnings | |
2334 | ;; | |
2335 | arm*-*-*) | |
2336 | conftest_s=' | |
2337 | .section ".tdata","awT",%progbits | |
2338 | foo: .long 25 | |
2339 | .text | |
2340 | .word foo(gottpoff) | |
2341 | .word foo(tpoff) | |
2342 | .word foo(tlsgd) | |
2343 | .word foo(tlsldm) | |
2344 | .word foo(tlsldo)' | |
2345 | tls_first_major=2 | |
2346 | tls_first_minor=17 | |
2347 | ;; | |
2348 | i[34567]86-*-*) | |
2349 | conftest_s=' | |
2350 | .section ".tdata","awT",@progbits | |
2351 | foo: .long 25 | |
2352 | .text | |
2353 | movl %gs:0, %eax | |
2354 | leal foo@TLSGD(,%ebx,1), %eax | |
2355 | leal foo@TLSLDM(%ebx), %eax | |
2356 | leal foo@DTPOFF(%eax), %edx | |
2357 | movl foo@GOTTPOFF(%ebx), %eax | |
2358 | subl foo@GOTTPOFF(%ebx), %eax | |
2359 | addl foo@GOTNTPOFF(%ebx), %eax | |
2360 | movl foo@INDNTPOFF, %eax | |
2361 | movl $foo@TPOFF, %eax | |
2362 | subl $foo@TPOFF, %eax | |
2363 | leal foo@NTPOFF(%ecx), %eax' | |
2364 | tls_first_major=2 | |
2365 | tls_first_minor=14 | |
2366 | tls_as_opt=--fatal-warnings | |
2367 | ;; | |
2368 | x86_64-*-*) | |
2369 | conftest_s=' | |
2370 | .section ".tdata","awT",@progbits | |
2371 | foo: .long 25 | |
2372 | .text | |
2373 | movq %fs:0, %rax | |
2374 | leaq foo@TLSGD(%rip), %rdi | |
2375 | leaq foo@TLSLD(%rip), %rdi | |
2376 | leaq foo@DTPOFF(%rax), %rdx | |
2377 | movq foo@GOTTPOFF(%rip), %rax | |
2378 | movq $foo@TPOFF, %rax' | |
2379 | tls_first_major=2 | |
2380 | tls_first_minor=14 | |
2381 | tls_as_opt=--fatal-warnings | |
2382 | ;; | |
2383 | ia64-*-*) | |
2384 | conftest_s=' | |
2385 | .section ".tdata","awT",@progbits | |
2386 | foo: data8 25 | |
2387 | .text | |
2388 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
2389 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
2390 | addl r18 = @ltoff(@tprel(foo#)), gp | |
2391 | addl r19 = @dtprel(foo#), gp | |
2392 | adds r21 = @dtprel(foo#), r13 | |
2393 | movl r23 = @dtprel(foo#) | |
2394 | addl r20 = @tprel(foo#), gp | |
2395 | adds r22 = @tprel(foo#), r13 | |
2396 | movl r24 = @tprel(foo#)' | |
2397 | tls_first_major=2 | |
2398 | tls_first_minor=13 | |
2399 | tls_as_opt=--fatal-warnings | |
2400 | ;; | |
2401 | mips*-*-*) | |
2402 | conftest_s=' | |
2403 | .section .tdata,"awT",@progbits | |
2404 | x: | |
2405 | .word 2 | |
2406 | .text | |
2407 | addiu $4, $28, %tlsgd(x) | |
2408 | addiu $4, $28, %tlsldm(x) | |
2409 | lui $4, %dtprel_hi(x) | |
2410 | addiu $4, $4, %dtprel_lo(x) | |
2411 | lw $4, %gottprel(x)($28) | |
2412 | lui $4, %tprel_hi(x) | |
2413 | addiu $4, $4, %tprel_lo(x)' | |
2414 | tls_first_major=2 | |
2415 | tls_first_minor=16 | |
2416 | tls_as_opt='-32 --fatal-warnings' | |
2417 | ;; | |
2418 | powerpc-*-*) | |
2419 | conftest_s=' | |
2420 | .section ".tdata","awT",@progbits | |
2421 | .align 2 | |
2422 | ld0: .space 4 | |
2423 | ld1: .space 4 | |
2424 | x1: .space 4 | |
2425 | x2: .space 4 | |
2426 | x3: .space 4 | |
2427 | .text | |
2428 | addi 3,31,ld0@got@tlsgd | |
2429 | bl __tls_get_addr | |
2430 | addi 3,31,x1@got@tlsld | |
2431 | bl __tls_get_addr | |
2432 | addi 9,3,x1@dtprel | |
2433 | addis 9,3,x2@dtprel@ha | |
2434 | addi 9,9,x2@dtprel@l | |
2435 | lwz 9,x3@got@tprel(31) | |
2436 | add 9,9,x@tls | |
2437 | addi 9,2,x1@tprel | |
2438 | addis 9,2,x2@tprel@ha | |
2439 | addi 9,9,x2@tprel@l' | |
2440 | tls_first_major=2 | |
2441 | tls_first_minor=14 | |
2442 | tls_as_opt="-a32 --fatal-warnings" | |
2443 | ;; | |
2444 | powerpc64-*-*) | |
2445 | conftest_s=' | |
2446 | .section ".tdata","awT",@progbits | |
2447 | .align 3 | |
2448 | ld0: .space 8 | |
2449 | ld1: .space 8 | |
2450 | x1: .space 8 | |
2451 | x2: .space 8 | |
2452 | x3: .space 8 | |
2453 | .text | |
2454 | addi 3,2,ld0@got@tlsgd | |
2455 | bl .__tls_get_addr | |
2456 | nop | |
2457 | addi 3,2,ld1@toc | |
2458 | bl .__tls_get_addr | |
2459 | nop | |
2460 | addi 3,2,x1@got@tlsld | |
2461 | bl .__tls_get_addr | |
2462 | nop | |
2463 | addi 9,3,x1@dtprel | |
2464 | bl .__tls_get_addr | |
2465 | nop | |
2466 | addis 9,3,x2@dtprel@ha | |
2467 | addi 9,9,x2@dtprel@l | |
2468 | bl .__tls_get_addr | |
2469 | nop | |
2470 | ld 9,x3@got@dtprel(2) | |
2471 | add 9,9,3 | |
2472 | bl .__tls_get_addr | |
2473 | nop' | |
2474 | tls_first_major=2 | |
2475 | tls_first_minor=14 | |
2476 | tls_as_opt="-a64 --fatal-warnings" | |
2477 | ;; | |
2478 | s390-*-*) | |
2479 | conftest_s=' | |
2480 | .section ".tdata","awT",@progbits | |
2481 | foo: .long 25 | |
2482 | .text | |
2483 | .long foo@TLSGD | |
2484 | .long foo@TLSLDM | |
2485 | .long foo@DTPOFF | |
2486 | .long foo@NTPOFF | |
2487 | .long foo@GOTNTPOFF | |
2488 | .long foo@INDNTPOFF | |
2489 | l %r1,foo@GOTNTPOFF(%r12) | |
2490 | l %r1,0(%r1):tls_load:foo | |
2491 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
2492 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2493 | tls_first_major=2 | |
2494 | tls_first_minor=14 | |
2495 | tls_as_opt="-m31 --fatal-warnings" | |
2496 | ;; | |
2497 | s390x-*-*) | |
2498 | conftest_s=' | |
2499 | .section ".tdata","awT",@progbits | |
2500 | foo: .long 25 | |
2501 | .text | |
2502 | .quad foo@TLSGD | |
2503 | .quad foo@TLSLDM | |
2504 | .quad foo@DTPOFF | |
2505 | .quad foo@NTPOFF | |
2506 | .quad foo@GOTNTPOFF | |
2507 | lg %r1,foo@GOTNTPOFF(%r12) | |
2508 | larl %r1,foo@INDNTPOFF | |
2509 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
2510 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2511 | tls_first_major=2 | |
2512 | tls_first_minor=14 | |
2513 | tls_as_opt="-m64 -Aesame --fatal-warnings" | |
2514 | ;; | |
2515 | sh-*-* | sh[34]-*-*) | |
2516 | conftest_s=' | |
2517 | .section ".tdata","awT",@progbits | |
2518 | foo: .long 25 | |
2519 | .text | |
2520 | .long foo@TLSGD | |
2521 | .long foo@TLSLDM | |
2522 | .long foo@DTPOFF | |
2523 | .long foo@GOTTPOFF | |
2524 | .long foo@TPOFF' | |
2525 | tls_first_major=2 | |
2526 | tls_first_minor=13 | |
2527 | tls_as_opt=--fatal-warnings | |
2528 | ;; | |
2529 | sparc*-*-*) | |
2530 | case "$target" in | |
2531 | sparc*-sun-solaris2.[56789]*) | |
2532 | # TLS was introduced in the Solaris 9 4/04 release but | |
2533 | # we do not enable it by default on Solaris 9 either. | |
2534 | if test "x$enable_tls" = xyes ; then | |
2535 | on_solaris=yes | |
2536 | else | |
2537 | enable_tls=no; | |
2538 | fi | |
2539 | ;; | |
2540 | sparc*-sun-solaris2.*) | |
2541 | on_solaris=yes | |
2542 | ;; | |
2543 | *) | |
2544 | on_solaris=no | |
2545 | ;; | |
2546 | esac | |
2547 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
2548 | conftest_s=' | |
2549 | .section ".tdata",#alloc,#write,#tls | |
2550 | foo: .long 25 | |
2551 | .text | |
2552 | sethi %tgd_hi22(foo), %o0 | |
2553 | add %o0, %tgd_lo10(foo), %o1 | |
2554 | add %l7, %o1, %o0, %tgd_add(foo) | |
2555 | call __tls_get_addr, %tgd_call(foo) | |
2556 | sethi %tldm_hi22(foo), %l1 | |
2557 | add %l1, %tldm_lo10(foo), %l2 | |
2558 | add %l7, %l2, %o0, %tldm_add(foo) | |
2559 | call __tls_get_addr, %tldm_call(foo) | |
2560 | sethi %tldo_hix22(foo), %l3 | |
2561 | xor %l3, %tldo_lox10(foo), %l4 | |
2562 | add %o0, %l4, %l5, %tldo_add(foo) | |
2563 | sethi %tie_hi22(foo), %o3 | |
2564 | add %o3, %tie_lo10(foo), %o3 | |
2565 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2566 | add %g7, %o2, %o4, %tie_add(foo) | |
2567 | sethi %tle_hix22(foo), %l1 | |
2568 | xor %l1, %tle_lox10(foo), %o5 | |
2569 | ld [%g7 + %o5], %o1' | |
2570 | tls_first_major=0 | |
2571 | tls_first_minor=0 | |
2572 | else | |
2573 | conftest_s=' | |
2574 | .section ".tdata","awT",@progbits | |
2575 | foo: .long 25 | |
2576 | .text | |
2577 | sethi %tgd_hi22(foo), %o0 | |
2578 | add %o0, %tgd_lo10(foo), %o1 | |
2579 | add %l7, %o1, %o0, %tgd_add(foo) | |
2580 | call __tls_get_addr, %tgd_call(foo) | |
2581 | sethi %tldm_hi22(foo), %l1 | |
2582 | add %l1, %tldm_lo10(foo), %l2 | |
2583 | add %l7, %l2, %o0, %tldm_add(foo) | |
2584 | call __tls_get_addr, %tldm_call(foo) | |
2585 | sethi %tldo_hix22(foo), %l3 | |
2586 | xor %l3, %tldo_lox10(foo), %l4 | |
2587 | add %o0, %l4, %l5, %tldo_add(foo) | |
2588 | sethi %tie_hi22(foo), %o3 | |
2589 | add %o3, %tie_lo10(foo), %o3 | |
2590 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2591 | add %g7, %o2, %o4, %tie_add(foo) | |
2592 | sethi %tle_hix22(foo), %l1 | |
2593 | xor %l1, %tle_lox10(foo), %o5 | |
2594 | ld [%g7 + %o5], %o1' | |
2595 | tls_first_major=2 | |
2596 | tls_first_minor=14 | |
2597 | tls_as_opt="-32 --fatal-warnings" | |
2598 | fi | |
2599 | ;; | |
2600 | changequote([,])dnl | |
2601 | esac | |
2602 | set_have_as_tls=no | |
2603 | if test "x$enable_tls" = xno ; then | |
2604 | : # TLS explicitly disabled. | |
2605 | elif test "x$enable_tls" = xyes ; then | |
2606 | set_have_as_tls=yes # TLS explicitly enabled. | |
2607 | elif test -z "$tls_first_major"; then | |
2608 | : # If we don't have a check, assume no support. | |
2609 | else | |
2610 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2611 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, | |
2612 | [set_have_as_tls=yes]) | |
2613 | fi | |
2614 | if test $set_have_as_tls = yes ; then | |
2615 | AC_DEFINE(HAVE_AS_TLS, 1, | |
2616 | [Define if your assembler supports thread-local storage.]) | |
2617 | fi | |
2618 | ||
2619 | # Target-specific assembler checks. | |
2620 | ||
2621 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) | |
2622 | gcc_cv_ld_static_dynamic=no | |
2623 | if test $in_tree_ld = yes ; then | |
2624 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then | |
2625 | gcc_cv_ld_static_dynamic=yes | |
2626 | fi | |
2627 | elif test x$gcc_cv_ld != x; then | |
2628 | # Check if linker supports -Bstatic/-Bdynamic option | |
2629 | if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \ | |
2630 | && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then | |
2631 | gcc_cv_ld_static_dynamic=yes | |
2632 | fi | |
2633 | fi | |
2634 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
2635 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
2636 | [Define if your linker supports -Bstatic/-Bdynamic option.]) | |
2637 | fi | |
2638 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
2639 | ||
2640 | if test x"$demangler_in_ld" = xyes; then | |
2641 | AC_MSG_CHECKING(linker --demangle support) | |
2642 | gcc_cv_ld_demangle=no | |
2643 | if test $in_tree_ld = yes; then | |
2644 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
2645 | gcc_cv_ld_demangle=yes | |
2646 | fi | |
2647 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
2648 | # Check if the GNU linker supports --demangle option | |
2649 | if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then | |
2650 | gcc_cv_ld_demangle=yes | |
2651 | fi | |
2652 | fi | |
2653 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
2654 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
2655 | [Define if your linker supports --demangle option.]) | |
2656 | fi | |
2657 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
2658 | fi | |
2659 | ||
2660 | case "$target" in | |
2661 | # All TARGET_ABI_OSF targets. | |
2662 | alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*) | |
2663 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
2664 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
2665 | [ .set nomacro | |
2666 | .text | |
2667 | extbl $3, $2, $3 !lituse_bytoff!1 | |
2668 | ldq $2, a($29) !literal!1 | |
2669 | ldq $4, b($29) !literal!2 | |
2670 | ldq_u $3, 0($2) !lituse_base!1 | |
2671 | ldq $27, f($29) !literal!5 | |
2672 | jsr $26, ($27), f !lituse_jsr!5 | |
2673 | ldah $29, 0($26) !gpdisp!3 | |
2674 | lda $0, c($29) !gprel | |
2675 | ldah $1, d($29) !gprelhigh | |
2676 | lda $1, d($1) !gprellow | |
2677 | lda $29, 0($29) !gpdisp!3],, | |
2678 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
2679 | [Define if your assembler supports explicit relocations.])]) | |
2680 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], | |
2681 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
2682 | [ .set nomacro | |
2683 | .text | |
2684 | ldq $27, a($29) !literal!1 | |
2685 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
2686 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
2687 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
2688 | ;; | |
2689 | ||
2690 | cris-*-*) | |
2691 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
2692 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
2693 | [-no-mul-bug-abort], [.text],, | |
2694 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
2695 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
2696 | ;; | |
2697 | ||
2698 | sparc*-*-*) | |
2699 | gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
2700 | [.register %g2, #scratch],, | |
2701 | [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
2702 | [Define if your assembler supports .register.])]) | |
2703 | ||
2704 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
2705 | [-relax], [.text],, | |
2706 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
2707 | [Define if your assembler supports -relax option.])]) | |
2708 | ||
2709 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], | |
2710 | gcc_cv_as_sparc_ua_pcrel,, | |
2711 | [-K PIC], | |
2712 | [.text | |
2713 | foo: | |
2714 | nop | |
2715 | .data | |
2716 | .align 4 | |
2717 | .byte 0 | |
2718 | .uaword %r_disp32(foo)], | |
2719 | [if test x$gcc_cv_ld != x \ | |
2720 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
2721 | gcc_cv_as_sparc_ua_pcrel=yes | |
2722 | fi | |
2723 | rm -f conftest], | |
2724 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
2725 | [Define if your assembler and linker support unaligned PC relative relocs.]) | |
2726 | ||
2727 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], | |
2728 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
2729 | [-K PIC], | |
2730 | [.data | |
2731 | .align 4 | |
2732 | .byte 0x31 | |
2733 | .uaword %r_disp32(foo) | |
2734 | .byte 0x32, 0x33, 0x34 | |
2735 | .global foo | |
2736 | .hidden foo | |
2737 | foo: | |
2738 | .skip 4], | |
2739 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
2740 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
2741 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
2742 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
2743 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
2744 | | grep 'DISP32' > /dev/null 2>&1; then | |
2745 | : | |
2746 | else | |
2747 | gcc_cv_as_sparc_ua_pcrel_hidden=yes | |
2748 | fi | |
2749 | fi | |
2750 | rm -f conftest], | |
2751 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
2752 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
2753 | ]) # unaligned pcrel relocs | |
2754 | ||
2755 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
2756 | gcc_cv_as_sparc_offsetable_lo10,, | |
2757 | [-xarch=v9], | |
2758 | [.text | |
2759 | or %g1, %lo(ab) + 12, %g1 | |
2760 | or %g1, %lo(ab + 12), %g1], | |
2761 | [if test x$gcc_cv_objdump != x \ | |
2762 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ | |
2763 | | grep ' 82106000 82106000' > /dev/null 2>&1; then | |
2764 | gcc_cv_as_sparc_offsetable_lo10=yes | |
2765 | fi], | |
2766 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
2767 | [Define if your assembler supports offsetable %lo().])]) | |
2768 | ;; | |
2769 | ||
2770 | changequote(,)dnl | |
2771 | i[34567]86-*-* | x86_64-*-*) | |
2772 | changequote([,])dnl | |
2773 | case $target_os in | |
2774 | cygwin* | pe | mingw32*) | |
2775 | # Used for DWARF 2 in PE | |
2776 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
2777 | gcc_cv_as_ix86_pe_secrel32, | |
2778 | [2,15,91],, | |
2779 | [.text | |
2780 | foo: nop | |
2781 | .data | |
2782 | .secrel32 foo], | |
2783 | [if test x$gcc_cv_ld != x \ | |
2784 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
2785 | gcc_cv_as_ix86_pe_secrel32=yes | |
2786 | fi | |
2787 | rm -f conftest], | |
2788 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
2789 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
2790 | ;; | |
2791 | esac | |
2792 | ||
2793 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], | |
2794 | gcc_cv_as_ix86_filds_fists, | |
2795 | [2,9,0],, [filds mem; fists mem],, | |
2796 | [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1, | |
2797 | [Define if your assembler uses the new HImode fild and fist notation.])]) | |
2798 | ||
2799 | gcc_GAS_CHECK_FEATURE([cmov syntax], | |
2800 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
2801 | [cmovl.l %edx, %eax],, | |
2802 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
2803 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
2804 | ||
2805 | gcc_GAS_CHECK_FEATURE([ffreep mnemonic], | |
2806 | gcc_cv_as_ix86_ffreep,,, | |
2807 | [ffreep %st(1)],, | |
2808 | [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1, | |
2809 | [Define if your assembler supports the ffreep mnemonic.])]) | |
2810 | ||
2811 | gcc_GAS_CHECK_FEATURE([different section symbol subtraction], | |
2812 | gcc_cv_as_ix86_diff_sect_delta,,, | |
2813 | [.section .rodata | |
2814 | .L1: | |
2815 | .long .L2-.L1 | |
2816 | .long .L3-.L1 | |
2817 | .text | |
2818 | .L3: nop | |
2819 | .L2: nop],, | |
2820 | [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1, | |
2821 | [Define if your assembler supports the subtraction of symbols in different sections.])]) | |
2822 | ||
2823 | # This one is used unconditionally by i386.[ch]; it is to be defined | |
2824 | # to 1 if the feature is present, 0 otherwise. | |
2825 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], | |
2826 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0],, | |
2827 | [ .text | |
2828 | .L0: | |
2829 | nop | |
2830 | .data | |
2831 | .long .L0@GOTOFF]) | |
2832 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
2833 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
2834 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
2835 | ;; | |
2836 | ||
2837 | ia64*-*-*) | |
2838 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], | |
2839 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
2840 | [ .text | |
2841 | addl r15 = @ltoffx(x#), gp | |
2842 | ;; | |
2843 | ld8.mov r16 = [[r15]], x#],, | |
2844 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, | |
2845 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
2846 | ||
2847 | ;; | |
2848 | ||
2849 | powerpc*-*-*) | |
2850 | case $target in | |
2851 | *-*-aix*) conftest_s=' .machine "pwr5" | |
2852 | .csect .text[[PR]] | |
2853 | mfcr 3,128';; | |
2854 | *-*-darwin*) | |
2855 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
2856 | gcc_cv_as_machine_directive,,, | |
2857 | [ .machine ppc7400]) | |
2858 | if test x$gcc_cv_as_machine_directive != xyes; then | |
2859 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
2860 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
2861 | test x$build = x$target && exit 1 | |
2862 | fi | |
2863 | conftest_s=' .text | |
2864 | mfcr r3,128';; | |
2865 | *) conftest_s=' .machine power4 | |
2866 | .text | |
2867 | mfcr 3,128';; | |
2868 | esac | |
2869 | ||
2870 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
2871 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
2872 | [$conftest_s],, | |
2873 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
2874 | [Define if your assembler supports mfcr field.])]) | |
2875 | ||
2876 | case $target in | |
2877 | *-*-aix*) conftest_s=' .machine "pwr5" | |
2878 | .csect .text[[PR]] | |
2879 | popcntb 3,3';; | |
2880 | *) conftest_s=' .machine power5 | |
2881 | .text | |
2882 | popcntb 3,3';; | |
2883 | esac | |
2884 | ||
2885 | gcc_GAS_CHECK_FEATURE([popcntb support], | |
2886 | gcc_cv_as_powerpc_popcntb, [2,17,0],, | |
2887 | [$conftest_s],, | |
2888 | [AC_DEFINE(HAVE_AS_POPCNTB, 1, | |
2889 | [Define if your assembler supports popcntb field.])]) | |
2890 | ||
2891 | case $target in | |
2892 | *-*-aix*) conftest_s=' .machine "pwr5x" | |
2893 | .csect .text[[PR]] | |
2894 | frin 1,1';; | |
2895 | *) conftest_s=' .machine power5 | |
2896 | .text | |
2897 | frin 1,1';; | |
2898 | esac | |
2899 | ||
2900 | gcc_GAS_CHECK_FEATURE([fp round support], | |
2901 | gcc_cv_as_powerpc_fprnd, [2,17,0],, | |
2902 | [$conftest_s],, | |
2903 | [AC_DEFINE(HAVE_AS_FPRND, 1, | |
2904 | [Define if your assembler supports fprnd.])]) | |
2905 | ||
2906 | case $target in | |
2907 | *-*-aix*) conftest_s=' .machine "pwr6" | |
2908 | .csect .text[[PR]] | |
2909 | mffgpr 1,3';; | |
2910 | *) conftest_s=' .machine power6 | |
2911 | .text | |
2912 | mffgpr 1,3';; | |
2913 | esac | |
2914 | ||
2915 | gcc_GAS_CHECK_FEATURE([move fp gpr support], | |
2916 | gcc_cv_as_powerpc_mfpgpr, [9,99,0],, | |
2917 | [$conftest_s],, | |
2918 | [AC_DEFINE(HAVE_AS_MFPGPR, 1, | |
2919 | [Define if your assembler supports mffgpr and mftgpr.])]) | |
2920 | ||
2921 | case $target in | |
2922 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
2923 | LCF..0: | |
2924 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
2925 | *-*-darwin*) | |
2926 | conftest_s=' .text | |
2927 | LCF0: | |
2928 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
2929 | *) conftest_s=' .text | |
2930 | .LCF0: | |
2931 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
2932 | esac | |
2933 | ||
2934 | gcc_GAS_CHECK_FEATURE([rel16 relocs], | |
2935 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
2936 | [$conftest_s],, | |
2937 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
2938 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
2939 | ||
2940 | case $target in | |
2941 | *-*-aix*) conftest_s=' .machine "pwr6" | |
2942 | .csect .text[[PR]] | |
2943 | cmpb 3,4,5';; | |
2944 | *) conftest_s=' .machine power6 | |
2945 | .text | |
2946 | cmpb 3,4,5';; | |
2947 | esac | |
2948 | ||
2949 | gcc_GAS_CHECK_FEATURE([compare bytes support], | |
2950 | gcc_cv_as_powerpc_cmpb, [9,99,0], -a32, | |
2951 | [$conftest_s],, | |
2952 | [AC_DEFINE(HAVE_AS_CMPB, 1, | |
2953 | [Define if your assembler supports cmpb.])]) | |
2954 | ||
2955 | case $target in | |
2956 | *-*-aix*) conftest_s=' .machine "pwr6" | |
2957 | .csect .text[[PR]] | |
2958 | dadd 1,3';; | |
2959 | *) conftest_s=' .machine power6 | |
2960 | .text | |
2961 | dadd 1,3';; | |
2962 | esac | |
2963 | ||
2964 | gcc_GAS_CHECK_FEATURE([decimal float support], | |
2965 | gcc_cv_as_powerpc_dfp, [9,99,0], -a32, | |
2966 | [$conftest_s],, | |
2967 | [AC_DEFINE(HAVE_AS_DFP, 1, | |
2968 | [Define if your assembler supports DFP instructions.])]) | |
2969 | ;; | |
2970 | ||
2971 | mips*-*-*) | |
2972 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
2973 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
2974 | [ lw $4,%gp_rel(foo)($4)],, | |
2975 | [if test x$target_cpu_default = x | |
2976 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
2977 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
2978 | fi]) | |
2979 | gcc_GAS_CHECK_FEATURE([-mno-shared support], | |
2980 | gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],, | |
2981 | [AC_DEFINE(HAVE_AS_NO_SHARED, 1, | |
2982 | [Define if the assembler understands -mno-shared.])]) | |
2983 | ;; | |
2984 | esac | |
2985 | ||
2986 | # Mips and HP-UX need the GNU assembler. | |
2987 | # Linux on IA64 might be able to use the Intel assembler. | |
2988 | ||
2989 | case "$target" in | |
2990 | mips*-*-* | *-*-hpux* ) | |
2991 | if test x$gas_flag = xyes \ | |
2992 | || test x"$host" != x"$build" \ | |
2993 | || test ! -x "$gcc_cv_as" \ | |
2994 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
2995 | : | |
2996 | else | |
2997 | echo "*** This configuration requires the GNU assembler" >&2 | |
2998 | exit 1 | |
2999 | fi | |
3000 | ;; | |
3001 | esac | |
3002 | ||
3003 | # ??? Not all targets support dwarf2 debug_line, even within a version | |
3004 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
3005 | # info to the output file. So, as supported targets are added to gas 2.11, | |
3006 | # add some instruction here to (also) show we expect this might work. | |
3007 | # ??? Once 2.11 is released, probably need to add first known working | |
3008 | # version to the per-target configury. | |
3009 | case "$target" in | |
3010 | i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \ | |
3011 | | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \ | |
3012 | | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-* | score*-*-* | spu-*-*) | |
3013 | insn="nop" | |
3014 | ;; | |
3015 | ia64*-*-* | s390*-*-*) | |
3016 | insn="nop 0" | |
3017 | ;; | |
3018 | mmix-*-*) | |
3019 | insn="swym 0" | |
3020 | ;; | |
3021 | esac | |
3022 | if test x"$insn" != x; then | |
3023 | conftest_s="\ | |
3024 | .file 1 \"conftest.s\" | |
3025 | .loc 1 3 0 | |
3026 | $insn" | |
3027 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
3028 | gcc_cv_as_dwarf2_debug_line, | |
3029 | [elf,2,11,0],, [$conftest_s], | |
3030 | [if test x$gcc_cv_objdump != x \ | |
3031 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
3032 | | grep debug_line > /dev/null 2>&1; then | |
3033 | gcc_cv_as_dwarf2_debug_line=yes | |
3034 | fi]) | |
3035 | ||
3036 | # The .debug_line file table must be in the exact order that | |
3037 | # we specified the files, since these indices are also used | |
3038 | # by DW_AT_decl_file. Approximate this test by testing if | |
3039 | # the assembler bitches if the same index is assigned twice. | |
3040 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
3041 | gcc_cv_as_dwarf2_file_buggy,,, | |
3042 | [ .file 1 "foo.s" | |
3043 | .file 1 "bar.s"]) | |
3044 | ||
3045 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
3046 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
3047 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, | |
3048 | [Define if your assembler supports dwarf2 .file/.loc directives, | |
3049 | and preserves file table indices exactly as given.]) | |
3050 | fi | |
3051 | ||
3052 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
3053 | gcc_cv_as_gdwarf2_flag, | |
3054 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
3055 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
3056 | [Define if your assembler supports the --gdwarf2 option.])]) | |
3057 | ||
3058 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
3059 | gcc_cv_as_gstabs_flag, | |
3060 | [elf,2,11,0], [--gstabs], [$insn], | |
3061 | [# The native Solaris 9/Intel assembler doesn't understand --gstabs | |
3062 | # and warns about it, but still exits successfully. So check for | |
3063 | # this. | |
3064 | if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null]) | |
3065 | then : | |
3066 | else gcc_cv_as_gstabs_flag=yes | |
3067 | fi], | |
3068 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, | |
3069 | [Define if your assembler supports the --gstabs option.])]) | |
3070 | fi | |
3071 | ||
3072 | AC_MSG_CHECKING(linker read-only and read-write section mixing) | |
3073 | gcc_cv_ld_ro_rw_mix=unknown | |
3074 | if test $in_tree_ld = yes ; then | |
3075 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3076 | && test $in_tree_ld_is_elf = yes; then | |
3077 | gcc_cv_ld_ro_rw_mix=read-write | |
3078 | fi | |
3079 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
3080 | echo '.section myfoosect, "a"' > conftest1.s | |
3081 | echo '.section myfoosect, "aw"' > conftest2.s | |
3082 | echo '.byte 1' >> conftest2.s | |
3083 | echo '.section myfoosect, "a"' > conftest3.s | |
3084 | echo '.byte 0' >> conftest3.s | |
3085 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3086 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3087 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
3088 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ | |
3089 | conftest2.o conftest3.o > /dev/null 2>&1; then | |
3090 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ | |
3091 | | sed -e '/myfoosect/!d' -e N` | |
3092 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then | |
3093 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
3094 | gcc_cv_ld_ro_rw_mix=read-only | |
3095 | else | |
3096 | gcc_cv_ld_ro_rw_mix=read-write | |
3097 | fi | |
3098 | fi | |
3099 | fi | |
3100 | changequote(,)dnl | |
3101 | rm -f conftest.* conftest[123].* | |
3102 | changequote([,])dnl | |
3103 | fi | |
3104 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
3105 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
3106 | [Define if your linker links a mix of read-only | |
3107 | and read-write sections into a read-write section.]) | |
3108 | fi | |
3109 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
3110 | ||
3111 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) | |
3112 | gcc_cv_ld_eh_frame_hdr=no | |
3113 | if test $in_tree_ld = yes ; then | |
3114 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3115 | && test $in_tree_ld_is_elf = yes; then | |
3116 | gcc_cv_ld_eh_frame_hdr=yes | |
3117 | fi | |
3118 | elif test x$gcc_cv_ld != x; then | |
3119 | # Check if linker supports --eh-frame-hdr option | |
3120 | if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then | |
3121 | gcc_cv_ld_eh_frame_hdr=yes | |
3122 | fi | |
3123 | fi | |
3124 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) | |
3125 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then | |
3126 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
3127 | [Define if your linker supports --eh-frame-hdr option.]) | |
3128 | fi | |
3129 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
3130 | ||
3131 | AC_MSG_CHECKING(linker position independent executable support) | |
3132 | gcc_cv_ld_pie=no | |
3133 | if test $in_tree_ld = yes ; then | |
3134 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3135 | && test $in_tree_ld_is_elf = yes; then | |
3136 | gcc_cv_ld_pie=yes | |
3137 | fi | |
3138 | elif test x$gcc_cv_ld != x; then | |
3139 | # Check if linker supports -pie option | |
3140 | if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then | |
3141 | gcc_cv_ld_pie=yes | |
3142 | fi | |
3143 | fi | |
3144 | if test x"$gcc_cv_ld_pie" = xyes; then | |
3145 | AC_DEFINE(HAVE_LD_PIE, 1, | |
3146 | [Define if your linker supports -pie option.]) | |
3147 | fi | |
3148 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
3149 | ||
3150 | AC_MSG_CHECKING(linker EH-compatible garbage collection of sections) | |
3151 | gcc_cv_ld_eh_gc_sections=no | |
3152 | if test $in_tree_ld = yes ; then | |
3153 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3154 | && test $in_tree_ld_is_elf = yes; then | |
3155 | gcc_cv_ld_eh_gc_sections=yes | |
3156 | fi | |
3157 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
3158 | cat > conftest.s <<EOF | |
3159 | .section .text | |
3160 | .globl _start | |
3161 | .type _start, @function | |
3162 | _start: | |
3163 | .long foo | |
3164 | .size _start, .-_start | |
3165 | .section .text.foo,"ax",@progbits | |
3166 | .type foo, @function | |
3167 | foo: | |
3168 | .long 0 | |
3169 | .size foo, .-foo | |
3170 | .section .gcc_except_table.foo,"a",@progbits | |
3171 | .L0: | |
3172 | .long 0 | |
3173 | .section .eh_frame,"a",@progbits | |
3174 | .long .L0 | |
3175 | EOF | |
3176 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3177 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3178 | | grep "gc-sections option ignored" > /dev/null; then | |
3179 | gcc_cv_ld_eh_gc_sections=no | |
3180 | elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3181 | gcc_cv_ld_eh_gc_sections=yes | |
3182 | # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections. | |
3183 | if test x$gcc_cv_as_comdat_group != xyes; then | |
3184 | gcc_cv_ld_eh_gc_sections=no | |
3185 | cat > conftest.s <<EOF | |
3186 | .section .text | |
3187 | .globl _start | |
3188 | .type _start, @function | |
3189 | _start: | |
3190 | .long foo | |
3191 | .size _start, .-_start | |
3192 | .section .gnu.linkonce.t.foo,"ax",@progbits | |
3193 | .type foo, @function | |
3194 | foo: | |
3195 | .long 0 | |
3196 | .size foo, .-foo | |
3197 | .section .gcc_except_table.foo,"a",@progbits | |
3198 | .L0: | |
3199 | .long 0 | |
3200 | .section .eh_frame,"a",@progbits | |
3201 | .long .L0 | |
3202 | EOF | |
3203 | if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then | |
3204 | if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \ | |
3205 | | grep "gc-sections option ignored" > /dev/null; then | |
3206 | gcc_cv_ld_eh_gc_sections=no | |
3207 | elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then | |
3208 | gcc_cv_ld_eh_gc_sections=yes | |
3209 | fi | |
3210 | fi | |
3211 | fi | |
3212 | fi | |
3213 | fi | |
3214 | rm -f conftest.s conftest.o conftest | |
3215 | fi | |
3216 | case "$target" in | |
3217 | hppa*-*-linux*) | |
3218 | # ??? This apparently exposes a binutils bug with PC-relative relocations. | |
3219 | gcc_cv_ld_eh_gc_sections=no | |
3220 | ;; | |
3221 | esac | |
3222 | if test x$gcc_cv_ld_eh_gc_sections = xyes; then | |
3223 | AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1, | |
3224 | [Define if your linker supports garbage collection of | |
3225 | sections in presence of EH frames.]) | |
3226 | fi | |
3227 | AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections) | |
3228 | ||
3229 | # -------- | |
3230 | # UNSORTED | |
3231 | # -------- | |
3232 | ||
3233 | AC_CACHE_CHECK(linker --as-needed support, | |
3234 | gcc_cv_ld_as_needed, | |
3235 | [gcc_cv_ld_as_needed=no | |
3236 | if test $in_tree_ld = yes ; then | |
3237 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3238 | && test $in_tree_ld_is_elf = yes; then | |
3239 | gcc_cv_ld_as_needed=yes | |
3240 | fi | |
3241 | elif test x$gcc_cv_ld != x; then | |
3242 | # Check if linker supports --as-needed and --no-as-needed options | |
3243 | if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then | |
3244 | gcc_cv_ld_as_needed=yes | |
3245 | fi | |
3246 | fi | |
3247 | ]) | |
3248 | if test x"$gcc_cv_ld_as_needed" = xyes; then | |
3249 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
3250 | [Define if your linker supports --as-needed and --no-as-needed options.]) | |
3251 | fi | |
3252 | ||
3253 | case "$target:$tm_file" in | |
3254 | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) | |
3255 | AC_CACHE_CHECK(linker support for omitting dot symbols, | |
3256 | gcc_cv_ld_no_dot_syms, | |
3257 | [gcc_cv_ld_no_dot_syms=no | |
3258 | if test $in_tree_ld = yes ; then | |
3259 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then | |
3260 | gcc_cv_ld_no_dot_syms=yes | |
3261 | fi | |
3262 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
3263 | cat > conftest1.s <<EOF | |
3264 | .text | |
3265 | bl .foo | |
3266 | EOF | |
3267 | cat > conftest2.s <<EOF | |
3268 | .section ".opd","aw" | |
3269 | .align 3 | |
3270 | .globl foo | |
3271 | .type foo,@function | |
3272 | foo: | |
3273 | .quad .LEfoo,.TOC.@tocbase,0 | |
3274 | .text | |
3275 | .LEfoo: | |
3276 | blr | |
3277 | .size foo,.-.LEfoo | |
3278 | EOF | |
3279 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3280 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3281 | && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then | |
3282 | gcc_cv_ld_no_dot_syms=yes | |
3283 | fi | |
3284 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
3285 | fi | |
3286 | ]) | |
3287 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
3288 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
3289 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
3290 | fi | |
3291 | ;; | |
3292 | esac | |
3293 | ||
3294 | AC_CACHE_CHECK(linker --sysroot support, | |
3295 | gcc_cv_ld_sysroot, | |
3296 | [gcc_cv_ld_sysroot=no | |
3297 | if test $in_tree_ld = yes ; then | |
3298 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
3299 | gcc_cv_ld_sysroot=yes | |
3300 | fi | |
3301 | elif test x$gcc_cv_ld != x; then | |
3302 | if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then | |
3303 | gcc_cv_ld_sysroot=yes | |
3304 | fi | |
3305 | fi]) | |
3306 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
3307 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
3308 | [Define if your linker supports --sysroot.]) | |
3309 | fi | |
3310 | ||
3311 | if test x$with_sysroot = x && test x$host = x$target \ | |
3312 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \ | |
3313 | && test "$prefix" != "NONE"; then | |
3314 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", | |
3315 | [Define to PREFIX/include if cpp should also search that directory.]) | |
3316 | fi | |
3317 | ||
3318 | # Test for stack protector support in target C library. | |
3319 | AC_CACHE_CHECK(__stack_chk_fail in target C library, | |
3320 | gcc_cv_libc_provides_ssp, | |
3321 | [gcc_cv_libc_provides_ssp=no | |
3322 | case "$target" in | |
3323 | *-*-linux*) | |
3324 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3325 | if test "x$with_sysroot" = x; then | |
3326 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
3327 | elif test "x$with_build_sysroot" != "x"; then | |
3328 | glibc_header_dir="${with_build_sysroot}/usr/include" | |
3329 | elif test "x$with_sysroot" = xyes; then | |
3330 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3331 | else | |
3332 | glibc_header_dir="${with_sysroot}/usr/include" | |
3333 | fi | |
3334 | else | |
3335 | glibc_header_dir=/usr/include | |
3336 | fi | |
3337 | # glibc 2.4 and later provides __stack_chk_fail and | |
3338 | # either __stack_chk_guard, or TLS access to stack guard canary. | |
3339 | if test -f $glibc_header_dir/features.h \ | |
3340 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ | |
3341 | $glibc_header_dir/features.h > /dev/null; then | |
3342 | if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \ | |
3343 | $glibc_header_dir/features.h > /dev/null; then | |
3344 | gcc_cv_libc_provides_ssp=yes | |
3345 | elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \ | |
3346 | $glibc_header_dir/features.h > /dev/null \ | |
3347 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \ | |
3348 | $glibc_header_dir/features.h > /dev/null; then | |
3349 | gcc_cv_libc_provides_ssp=yes | |
3350 | fi | |
3351 | fi | |
3352 | ;; | |
3353 | *-*-darwin*) | |
3354 | AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes], | |
3355 | [echo "no __stack_chk_fail on this target"]) | |
3356 | ;; | |
3357 | *) gcc_cv_libc_provides_ssp=no ;; | |
3358 | esac]) | |
3359 | ||
3360 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
3361 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
3362 | [Define if your target C library provides stack protector support]) | |
3363 | fi | |
3364 | ||
3365 | # Check if TFmode long double should be used by default or not. | |
3366 | # Some glibc targets used DFmode long double, but with glibc 2.4 | |
3367 | # and later they can use TFmode. | |
3368 | case "$target" in | |
3369 | powerpc*-*-*gnu* | \ | |
3370 | sparc*-*-linux* | \ | |
3371 | s390*-*-linux* | \ | |
3372 | alpha*-*-linux*) | |
3373 | AC_ARG_WITH(long-double-128, | |
3374 | [ --with-long-double-128 Use 128-bit long double by default.], | |
3375 | gcc_cv_target_ldbl128="$with_long_double_128", | |
3376 | [gcc_cv_target_ldbl128=no | |
3377 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3378 | if test "x$with_sysroot" = x; then | |
3379 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
3380 | elif test "x$with_build_sysroot" != "x"; then | |
3381 | glibc_header_dir="${with_build_sysroot}/usr/include" | |
3382 | elif test "x$with_sysroot" = xyes; then | |
3383 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3384 | else | |
3385 | glibc_header_dir="${with_sysroot}/usr/include" | |
3386 | fi | |
3387 | else | |
3388 | glibc_header_dir=/usr/include | |
3389 | fi | |
3390 | changequote(,)dnl | |
3391 | grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ | |
3392 | $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \ | |
3393 | && gcc_cv_target_ldbl128=yes | |
3394 | changequote([,])dnl | |
3395 | ]) | |
3396 | ;; | |
3397 | esac | |
3398 | if test x$gcc_cv_target_ldbl128 = xyes; then | |
3399 | AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, | |
3400 | [Define if TFmode long double should be the default]) | |
3401 | fi | |
3402 | ||
3403 | # Find out what GC implementation we want, or may, use. | |
3404 | AC_ARG_WITH(gc, | |
3405 | [ --with-gc={page,zone} choose the garbage collection mechanism to use | |
3406 | with the compiler], | |
3407 | [case "$withval" in | |
3408 | page) | |
3409 | GGC=ggc-$withval | |
3410 | ;; | |
3411 | zone) | |
3412 | GGC=ggc-$withval | |
3413 | AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use]) | |
3414 | ;; | |
3415 | *) | |
3416 | AC_MSG_ERROR([$withval is an invalid option to --with-gc]) | |
3417 | ;; | |
3418 | esac], | |
3419 | [GGC=ggc-page]) | |
3420 | AC_SUBST(GGC) | |
3421 | echo "Using $GGC for garbage collection." | |
3422 | ||
3423 | # Use the system's zlib library. | |
3424 | zlibdir=-L../zlib | |
3425 | zlibinc="-I\$(srcdir)/../zlib" | |
3426 | AC_ARG_WITH(system-zlib, | |
3427 | [ --with-system-zlib use installed libz], | |
3428 | zlibdir= | |
3429 | zlibinc= | |
3430 | ) | |
3431 | AC_SUBST(zlibdir) | |
3432 | AC_SUBST(zlibinc) | |
3433 | ||
3434 | dnl Very limited version of automake's enable-maintainer-mode | |
3435 | ||
3436 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
3437 | dnl maintainer-mode is disabled by default | |
3438 | AC_ARG_ENABLE(maintainer-mode, | |
3439 | [ --enable-maintainer-mode | |
3440 | enable make rules and dependencies not useful | |
3441 | (and sometimes confusing) to the casual installer], | |
3442 | maintainer_mode=$enableval, | |
3443 | maintainer_mode=no) | |
3444 | ||
3445 | AC_MSG_RESULT($maintainer_mode) | |
3446 | ||
3447 | if test "$maintainer_mode" = "yes"; then | |
3448 | MAINT='' | |
3449 | else | |
3450 | MAINT='#' | |
3451 | fi | |
3452 | AC_SUBST(MAINT)dnl | |
3453 | ||
3454 | # -------------- | |
3455 | # Language hooks | |
3456 | # -------------- | |
3457 | ||
3458 | # Make empty files to contain the specs and options for each language. | |
3459 | # Then add #include lines to for a compiler that has specs and/or options. | |
3460 | ||
3461 | subdirs= | |
3462 | lang_opt_files= | |
3463 | lang_specs_files= | |
3464 | lang_tree_files= | |
3465 | # These (without "all_") are set in each config-lang.in. | |
3466 | # `language' must be a single word so is spelled singularly. | |
3467 | all_languages= | |
3468 | all_compilers= | |
3469 | all_outputs='Makefile gccbug libada-mk' | |
3470 | # List of language makefile fragments. | |
3471 | all_lang_makefrags= | |
3472 | # List of language subdirectory makefiles. Deprecated. | |
3473 | all_lang_makefiles= | |
3474 | # Files for gengtype | |
3475 | all_gtfiles="$target_gtfiles" | |
3476 | # Files for gengtype with language | |
3477 | all_gtfiles_files_langs= | |
3478 | all_gtfiles_files_files= | |
3479 | ||
3480 | # These are the languages that are set in --enable-languages, | |
3481 | # and are available in the GCC tree. | |
3482 | all_selected_languages= | |
3483 | ||
3484 | # Add the language fragments. | |
3485 | # Languages are added via two mechanisms. Some information must be | |
3486 | # recorded in makefile variables, these are defined in config-lang.in. | |
3487 | # We accumulate them and plug them into the main Makefile. | |
3488 | # The other mechanism is a set of hooks for each of the main targets | |
3489 | # like `clean', `install', etc. | |
3490 | ||
3491 | language_hooks="Make-hooks" | |
3492 | ||
3493 | for lang in ${srcdir}/*/config-lang.in | |
3494 | do | |
3495 | changequote(,)dnl | |
3496 | test "$lang" = "${srcdir}/*/config-lang.in" && continue | |
3497 | ||
3498 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` | |
3499 | if test "x$lang_alias" = x | |
3500 | then | |
3501 | echo "$lang doesn't set \$language." 1>&2 | |
3502 | exit 1 | |
3503 | fi | |
3504 | subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" | |
3505 | subdirs="$subdirs $subdir" | |
3506 | case ",$enable_languages," in | |
3507 | *,$lang_alias,*) | |
3508 | all_selected_languages="$all_selected_languages $lang_alias" | |
3509 | if test -f $srcdir/$subdir/lang-specs.h; then | |
3510 | lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h" | |
3511 | fi | |
3512 | ;; | |
3513 | esac | |
3514 | changequote([,])dnl | |
3515 | ||
3516 | language= | |
3517 | boot_language= | |
3518 | compilers= | |
3519 | outputs= | |
3520 | gtfiles= | |
3521 | subdir_requires= | |
3522 | . ${srcdir}/$subdir/config-lang.in | |
3523 | if test "x$language" = x | |
3524 | then | |
3525 | echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2 | |
3526 | exit 1 | |
3527 | fi | |
3528 | ||
3529 | ok=: | |
3530 | case ",$enable_languages," in | |
3531 | *,$lang_alias,*) ;; | |
3532 | *) | |
3533 | for i in $subdir_requires; do | |
3534 | test -f "${srcdir}/$i/config-lang.in" && continue | |
3535 | ok=false | |
3536 | break | |
3537 | done | |
3538 | ;; | |
3539 | esac | |
3540 | $ok || continue | |
3541 | ||
3542 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in" | |
3543 | if test -f $srcdir/$subdir/lang.opt; then | |
3544 | lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt" | |
3545 | fi | |
3546 | if test -f $srcdir/$subdir/$subdir-tree.def; then | |
3547 | lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def" | |
3548 | fi | |
3549 | if test -f ${srcdir}/$subdir/Makefile.in | |
3550 | then all_lang_makefiles="$subdir/Makefile" | |
3551 | fi | |
3552 | all_languages="$all_languages $language" | |
3553 | all_compilers="$all_compilers $compilers" | |
3554 | all_outputs="$all_outputs $outputs" | |
3555 | all_gtfiles="$all_gtfiles $gtfiles" | |
3556 | for f in $gtfiles | |
3557 | do | |
3558 | all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} " | |
3559 | all_gtfiles_files_files="$all_gtfiles_files_files ${f} " | |
3560 | done | |
3561 | done | |
3562 | ||
3563 | # Pick up gtfiles for c | |
3564 | gtfiles= | |
3565 | subdir="c" | |
3566 | . ${srcdir}/c-config-lang.in | |
3567 | all_gtfiles="$all_gtfiles $gtfiles" | |
3568 | for f in $gtfiles | |
3569 | do | |
3570 | all_gtfiles_files_langs="$all_gtfiles_files_langs ${subdir} " | |
3571 | all_gtfiles_files_files="$all_gtfiles_files_files ${f} " | |
3572 | done | |
3573 | ||
3574 | check_languages= | |
3575 | for language in $all_selected_languages | |
3576 | do | |
3577 | check_languages="$check_languages check-$language" | |
3578 | done | |
3579 | ||
3580 | # We link each language in with a set of hooks, reached indirectly via | |
3581 | # lang.${target}. Only do so for selected languages. | |
3582 | ||
3583 | rm -f Make-hooks | |
3584 | touch Make-hooks | |
3585 | target_list="all.cross start.encap rest.encap tags \ | |
3586 | install-common install-man install-info install-pdf dvi pdf \ | |
3587 | html uninstall info man srcextra srcman srcinfo \ | |
3588 | mostlyclean clean distclean maintainer-clean" | |
3589 | ||
3590 | for t in $target_list | |
3591 | do | |
3592 | x= | |
3593 | for lang in $all_selected_languages | |
3594 | do | |
3595 | x="$x $lang.$t" | |
3596 | done | |
3597 | echo "lang.$t: $x" >> Make-hooks | |
3598 | done | |
3599 | ||
3600 | # -------- | |
3601 | # UNSORTED | |
3602 | # -------- | |
3603 | ||
3604 | # Create .gdbinit. | |
3605 | ||
3606 | echo "dir ." > .gdbinit | |
3607 | echo "dir ${srcdir}" >> .gdbinit | |
3608 | if test x$gdb_needs_out_file_path = xyes | |
3609 | then | |
3610 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
3611 | fi | |
3612 | if test "x$subdirs" != x; then | |
3613 | for s in $subdirs | |
3614 | do | |
3615 | echo "dir ${srcdir}/$s" >> .gdbinit | |
3616 | done | |
3617 | fi | |
3618 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit | |
3619 | ||
3620 | # If $(exec_prefix) exists and is not the same as $(prefix), then compute an | |
3621 | # absolute path for gcc_tooldir based on inserting the number of up-directory | |
3622 | # movements required to get from $(exec_prefix) to $(prefix) into the basic | |
3623 | # $(libsubdir)/@(unlibsubdir) based path. | |
3624 | # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel | |
3625 | # make and thus we'd get different behavior depending on where we built the | |
3626 | # sources. | |
3627 | if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then | |
3628 | gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)' | |
3629 | else | |
3630 | changequote(<<, >>)dnl | |
3631 | # An explanation of the sed strings: | |
3632 | # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix' | |
3633 | # -e 's|/$||' match a trailing forward slash and eliminates it | |
3634 | # -e 's|^[^/]|/|' forces the string to start with a forward slash (*) | |
3635 | # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../ | |
3636 | # | |
3637 | # (*) Note this pattern overwrites the first character of the string | |
3638 | # with a forward slash if one is not already present. This is not a | |
3639 | # problem because the exact names of the sub-directories concerned is | |
3640 | # unimportant, just the number of them matters. | |
3641 | # | |
3642 | # The practical upshot of these patterns is like this: | |
3643 | # | |
3644 | # prefix exec_prefix result | |
3645 | # ------ ----------- ------ | |
3646 | # /foo /foo/bar ../ | |
3647 | # /foo/ /foo/bar ../ | |
3648 | # /foo /foo/bar/ ../ | |
3649 | # /foo/ /foo/bar/ ../ | |
3650 | # /foo /foo/bar/ugg ../../ | |
3651 | # | |
3652 | dollar='$$' | |
3653 | gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)" | |
3654 | changequote([, ])dnl | |
3655 | fi | |
3656 | AC_SUBST(gcc_tooldir) | |
3657 | AC_SUBST(dollar) | |
3658 | ||
3659 | # Find a directory in which to install a shared libgcc. | |
3660 | ||
3661 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
3662 | [ --enable-version-specific-runtime-libs | |
3663 | specify that runtime libraries should be | |
3664 | installed in a compiler-specific directory]) | |
3665 | ||
3666 | AC_ARG_WITH(slibdir, | |
3667 | [ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]], | |
3668 | slibdir="$with_slibdir", | |
3669 | if test "${enable_version_specific_runtime_libs+set}" = set; then | |
3670 | slibdir='$(libsubdir)' | |
3671 | elif test "$host" != "$target"; then | |
3672 | slibdir='$(build_tooldir)/lib' | |
3673 | else | |
3674 | slibdir='$(libdir)' | |
3675 | fi) | |
3676 | AC_SUBST(slibdir) | |
3677 | ||
3678 | objdir=`${PWDCMD-pwd}` | |
3679 | AC_SUBST(objdir) | |
3680 | ||
3681 | AC_ARG_WITH(datarootdir, | |
3682 | [ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]], | |
3683 | datarootdir="\${prefix}/$with_datarootdir", | |
3684 | datarootdir='$(prefix)/share') | |
3685 | AC_SUBST(datarootdir) | |
3686 | ||
3687 | AC_ARG_WITH(docdir, | |
3688 | [ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]], | |
3689 | docdir="\${prefix}/$with_docdir", | |
3690 | docdir='$(datarootdir)') | |
3691 | AC_SUBST(docdir) | |
3692 | ||
3693 | AC_ARG_WITH(htmldir, | |
3694 | [ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]], | |
3695 | htmldir="\${prefix}/$with_htmldir", | |
3696 | htmldir='$(docdir)') | |
3697 | AC_SUBST(htmldir) | |
3698 | ||
3699 | # Substitute configuration variables | |
3700 | AC_SUBST(subdirs) | |
3701 | AC_SUBST(srcdir) | |
3702 | AC_SUBST(all_compilers) | |
3703 | AC_SUBST(all_gtfiles) | |
3704 | AC_SUBST(all_gtfiles_files_langs) | |
3705 | AC_SUBST(all_gtfiles_files_files) | |
3706 | AC_SUBST(all_lang_makefrags) | |
3707 | AC_SUBST(all_lang_makefiles) | |
3708 | AC_SUBST(all_languages) | |
3709 | AC_SUBST(all_selected_languages) | |
3710 | AC_SUBST(build_exeext) | |
3711 | AC_SUBST(build_install_headers_dir) | |
3712 | AC_SUBST(build_xm_file_list) | |
3713 | AC_SUBST(build_xm_include_list) | |
3714 | AC_SUBST(build_xm_defines) | |
3715 | AC_SUBST(check_languages) | |
3716 | AC_SUBST(cpp_install_dir) | |
3717 | AC_SUBST(xmake_file) | |
3718 | AC_SUBST(tmake_file) | |
3719 | AC_SUBST(extra_gcc_objs) | |
3720 | AC_SUBST(extra_headers_list) | |
3721 | AC_SUBST(extra_objs) | |
3722 | AC_SUBST(extra_parts) | |
3723 | AC_SUBST(extra_passes) | |
3724 | AC_SUBST(extra_programs) | |
3725 | AC_SUBST(float_h_file) | |
3726 | AC_SUBST(gcc_config_arguments) | |
3727 | AC_SUBST(gcc_gxx_include_dir) | |
3728 | AC_SUBST(host_exeext) | |
3729 | AC_SUBST(host_xm_file_list) | |
3730 | AC_SUBST(host_xm_include_list) | |
3731 | AC_SUBST(host_xm_defines) | |
3732 | AC_SUBST(out_host_hook_obj) | |
3733 | AC_SUBST(install) | |
3734 | AC_SUBST(lang_opt_files) | |
3735 | AC_SUBST(lang_specs_files) | |
3736 | AC_SUBST(lang_tree_files) | |
3737 | AC_SUBST(local_prefix) | |
3738 | AC_SUBST(md_file) | |
3739 | AC_SUBST(objc_boehm_gc) | |
3740 | AC_SUBST(out_file) | |
3741 | AC_SUBST(out_object_file) | |
3742 | AC_SUBST(thread_file) | |
3743 | AC_SUBST(tm_file_list) | |
3744 | AC_SUBST(tm_include_list) | |
3745 | AC_SUBST(tm_defines) | |
3746 | AC_SUBST(tm_p_file_list) | |
3747 | AC_SUBST(tm_p_include_list) | |
3748 | AC_SUBST(xm_file_list) | |
3749 | AC_SUBST(xm_include_list) | |
3750 | AC_SUBST(xm_defines) | |
3751 | AC_SUBST(c_target_objs) | |
3752 | AC_SUBST(cxx_target_objs) | |
3753 | AC_SUBST(target_cpu_default) | |
3754 | ||
3755 | AC_SUBST_FILE(language_hooks) | |
3756 | ||
3757 | # Echo link setup. | |
3758 | if test x${build} = x${host} ; then | |
3759 | if test x${host} = x${target} ; then | |
3760 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
3761 | else | |
3762 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
3763 | echo " from ${host} to ${target}." 1>&2 | |
3764 | fi | |
3765 | else | |
3766 | if test x${host} = x${target} ; then | |
3767 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
3768 | echo " for ${target}." 1>&2 | |
3769 | else | |
3770 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
3771 | echo " from ${host} to ${target}." 1>&2 | |
3772 | fi | |
3773 | fi | |
3774 | ||
3775 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) | |
3776 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
3777 | ||
3778 | # Configure the subdirectories | |
3779 | # AC_CONFIG_SUBDIRS($subdirs) | |
3780 | ||
3781 | # Create the Makefile | |
3782 | # and configure language subdirectories | |
3783 | AC_CONFIG_FILES($all_outputs) | |
3784 | ||
3785 | AC_CONFIG_COMMANDS([default], | |
3786 | [ | |
3787 | case ${CONFIG_HEADERS} in | |
3788 | *auto-host.h:config.in*) | |
3789 | echo > cstamp-h ;; | |
3790 | esac | |
3791 | # Make sure all the subdirs exist. | |
3792 | for d in $subdirs doc build | |
3793 | do | |
3794 | test -d $d || mkdir $d | |
3795 | done | |
3796 | ], | |
3797 | [subdirs='$subdirs']) | |
3798 | AC_OUTPUT |