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ca9bc441 | 1 | # configure.ac for GCC |
46f18e7b RK |
2 | # Process this file with autoconf to generate a configuration script. |
3 | ||
d3585b76 | 4 | # Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
eb70d86d | 5 | # Free Software Foundation, Inc. |
46f18e7b | 6 | |
1322177d | 7 | #This file is part of GCC. |
46f18e7b | 8 | |
1322177d LB |
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. | |
46f18e7b | 13 | |
1322177d LB |
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. | |
46f18e7b RK |
18 | |
19 | #You should have received a copy of the GNU General Public License | |
1322177d | 20 | #along with GCC; see the file COPYING. If not, write to the Free |
366ccddb KC |
21 | #Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
22 | #02110-1301, USA. | |
46f18e7b | 23 | |
34a86c2b NN |
24 | # -------------------------------- |
25 | # Initialization and sanity checks | |
26 | # -------------------------------- | |
27 | ||
8ab705be | 28 | AC_PREREQ(2.59) |
914c5af7 NN |
29 | AC_INIT |
30 | AC_CONFIG_SRCDIR(tree.c) | |
b7cb92ad | 31 | AC_CONFIG_HEADER(auto-host.h:config.in) |
cdcc6a01 | 32 | |
9f18db39 PB |
33 | gcc_version=`cat $srcdir/BASE-VER` |
34 | ||
34a86c2b | 35 | # Determine the host, build, and target systems |
914c5af7 NN |
36 | AC_CANONICAL_BUILD |
37 | AC_CANONICAL_HOST | |
38 | AC_CANONICAL_TARGET | |
34a86c2b | 39 | |
caa55b1e | 40 | # Determine the noncanonical target name, for directory use. |
392765bf | 41 | ACX_NONCANONICAL_TARGET |
caa55b1e | 42 | |
4665e56c NN |
43 | # Determine the target- and build-specific subdirectories |
44 | GCC_TOPLEV_SUBDIRS | |
45 | ||
34a86c2b NN |
46 | # Set program_transform_name |
47 | AC_ARG_PROGRAM | |
46f18e7b | 48 | |
75a39864 JL |
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 | |
079bd08e | 72 | *** building gcc. Please change the environment variable |
75a39864 JL |
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 "$gcc_exec_prefix_setting" != "ok"; then | |
96 | AC_MSG_ERROR([ | |
97 | *** GCC_EXEC_PREFIX shouldn't contain the current directory when | |
079bd08e | 98 | *** building gcc. Please change the environment variable |
75a39864 JL |
99 | *** and run configure again.]) |
100 | fi | |
101 | ||
34a86c2b NN |
102 | # ----------- |
103 | # Directories | |
104 | # ----------- | |
105 | ||
106 | # Specify the local prefix | |
107 | local_prefix= | |
108 | AC_ARG_WITH(local-prefix, | |
109 | [ --with-local-prefix=DIR specifies directory to put local include], | |
110 | [case "${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 | if test x${gcc_gxx_include_dir} = x; then | |
136 | if test x${enable_version_specific_runtime_libs} = xyes; then | |
137 | gcc_gxx_include_dir='${libsubdir}/include/c++' | |
138 | else | |
a1286ef5 | 139 | libstdcxx_incdir='c++/$(version)' |
34a86c2b NN |
140 | changequote(<<, >>)dnl |
141 | gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir} | |
142 | changequote([, ])dnl | |
143 | fi | |
144 | fi | |
145 | ||
146 | AC_ARG_WITH(cpp_install_dir, | |
147 | [ --with-cpp-install-dir=DIR | |
148 | install the user visible C preprocessor in DIR | |
149 | (relative to PREFIX) as well as PREFIX/bin], | |
150 | [if test x$withval = xyes; then | |
151 | AC_MSG_ERROR([option --with-cpp-install-dir requires an argument]) | |
152 | elif test x$withval != xno; then | |
153 | cpp_install_dir=$withval | |
154 | fi]) | |
155 | ||
51b9ff45 KC |
156 | # We would like to our source tree to be readonly. However when releases or |
157 | # pre-releases are generated, the flex/bison generated files as well as the | |
158 | # various formats of manuals need to be included along with the rest of the | |
159 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
160 | # just that. | |
161 | ||
03787dfd KC |
162 | AC_MSG_CHECKING([whether to place generated files in the source directory]) |
163 | dnl generated-files-in-srcdir is disabled by default | |
164 | AC_ARG_ENABLE(generated-files-in-srcdir, | |
165 | [ --enable-generated-files-in-srcdir | |
166 | put copies of generated files in source dir | |
167 | intended for creating source tarballs for users | |
168 | without texinfo bison or flex.], | |
169 | generated_files_in_srcdir=$enableval, | |
170 | generated_files_in_srcdir=no) | |
171 | ||
172 | AC_MSG_RESULT($generated_files_in_srcdir) | |
173 | ||
174 | if test "$generated_files_in_srcdir" = "yes"; then | |
175 | GENINSRC='' | |
03787dfd KC |
176 | else |
177 | GENINSRC='#' | |
03787dfd KC |
178 | fi |
179 | AC_SUBST(GENINSRC) | |
51b9ff45 | 180 | |
34a86c2b NN |
181 | # ------------------- |
182 | # Find default linker | |
183 | # ------------------- | |
46f18e7b RK |
184 | |
185 | # With GNU ld | |
186 | AC_ARG_WITH(gnu-ld, | |
187 | [ --with-gnu-ld arrange to work with GNU ld.], | |
df6faf79 JW |
188 | gnu_ld_flag="$with_gnu_ld", |
189 | gnu_ld_flag=no) | |
46f18e7b | 190 | |
ab339d62 AO |
191 | # With pre-defined ld |
192 | AC_ARG_WITH(ld, | |
e8bec136 | 193 | [ --with-ld arrange to use the specified ld (full pathname)], |
3ccc3a56 AO |
194 | DEFAULT_LINKER="$with_ld") |
195 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
196 | if test ! -x "$DEFAULT_LINKER"; then | |
99c012a8 | 197 | AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER]) |
e154a394 | 198 | elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 AO |
199 | gnu_ld_flag=yes |
200 | fi | |
119d24d1 KG |
201 | AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER", |
202 | [Define to enable the use of a default linker.]) | |
ab339d62 AO |
203 | fi |
204 | ||
34a86c2b NN |
205 | AC_MSG_CHECKING([whether a default linker was specified]) |
206 | if test x"${DEFAULT_LINKER+set}" = x"set"; then | |
207 | if test x"$gnu_ld_flag" = x"no"; then | |
208 | AC_MSG_RESULT([yes ($DEFAULT_LINKER)]) | |
209 | else | |
210 | AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)]) | |
211 | fi | |
212 | else | |
213 | AC_MSG_RESULT(no) | |
214 | fi | |
215 | ||
d594623a L |
216 | # With demangler in GNU ld |
217 | AC_ARG_WITH(demangler-in-ld, | |
218 | [ --with-demangler-in-ld try to use demangler in GNU ld.], | |
219 | demangler_in_ld="$with_demangler_in_ld", | |
220 | demangler_in_ld=no) | |
221 | ||
34a86c2b NN |
222 | # ---------------------- |
223 | # Find default assembler | |
224 | # ---------------------- | |
225 | ||
46f18e7b RK |
226 | # With GNU as |
227 | AC_ARG_WITH(gnu-as, | |
e8bec136 | 228 | [ --with-gnu-as arrange to work with GNU as], |
df6faf79 JW |
229 | gas_flag="$with_gnu_as", |
230 | gas_flag=no) | |
46f18e7b | 231 | |
ab339d62 | 232 | AC_ARG_WITH(as, |
e8bec136 | 233 | [ --with-as arrange to use the specified as (full pathname)], |
3ccc3a56 AO |
234 | DEFAULT_ASSEMBLER="$with_as") |
235 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
236 | if test ! -x "$DEFAULT_ASSEMBLER"; then | |
99c012a8 | 237 | AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER]) |
e154a394 | 238 | elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then |
ab339d62 AO |
239 | gas_flag=yes |
240 | fi | |
119d24d1 KG |
241 | AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER", |
242 | [Define to enable the use of a default assembler.]) | |
3ccc3a56 | 243 | fi |
ab339d62 | 244 | |
34a86c2b NN |
245 | AC_MSG_CHECKING([whether a default assembler was specified]) |
246 | if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then | |
247 | if test x"$gas_flag" = x"no"; then | |
248 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)]) | |
4e88d51b | 249 | else |
34a86c2b | 250 | AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)]) |
4e88d51b | 251 | fi |
34a86c2b NN |
252 | else |
253 | AC_MSG_RESULT(no) | |
4e88d51b | 254 | fi |
46f18e7b | 255 | |
34a86c2b NN |
256 | # --------------- |
257 | # Find C compiler | |
258 | # --------------- | |
13c22933 | 259 | |
426ca3ca RO |
260 | # If a non-executable a.out is present (e.g. created by GNU as above even if |
261 | # invoked with -v only), the IRIX 6 native ld just overwrites the existing | |
262 | # file, even when creating an executable, so an execution test fails. | |
263 | # Remove possible default executable files to avoid this. | |
264 | # | |
265 | # FIXME: This really belongs into AC_PROG_CC and can be removed once | |
266 | # Autoconf includes it. | |
267 | rm -f a.out a.exe b.out | |
268 | ||
414d23ae HPN |
269 | # Find the native compiler |
270 | AC_PROG_CC | |
3b620440 | 271 | AM_PROG_CC_C_O |
414d23ae HPN |
272 | # autoconf is lame and doesn't give us any substitution variable for this. |
273 | if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then | |
274 | NO_MINUS_C_MINUS_O=yes | |
275 | else | |
276 | OUTPUT_OPTION='-o $@' | |
277 | fi | |
278 | AC_SUBST(NO_MINUS_C_MINUS_O) | |
279 | AC_SUBST(OUTPUT_OPTION) | |
280 | ||
73458fb7 NN |
281 | # ------------------------- |
282 | # Check C compiler features | |
283 | # ------------------------- | |
284 | ||
34a86c2b NN |
285 | AC_PROG_CPP |
286 | AC_C_INLINE | |
34a86c2b | 287 | |
34a86c2b | 288 | # sizeof(char) is 1 by definition. |
bf3b7cd3 JD |
289 | AC_CHECK_SIZEOF(void *) |
290 | AC_CHECK_SIZEOF(short) | |
291 | AC_CHECK_SIZEOF(int) | |
292 | AC_CHECK_SIZEOF(long) | |
5ec1c5e6 KC |
293 | AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)]) |
294 | AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)]) | |
34a86c2b | 295 | |
34a86c2b NN |
296 | # --------------------- |
297 | # Warnings and checking | |
298 | # --------------------- | |
299 | ||
b5472e1d NN |
300 | # Check $CC warning features (if it's GCC). |
301 | # We want to use -pedantic, but we don't want warnings about | |
302 | # * 'long long' | |
303 | # * variadic macros | |
89a42ac8 | 304 | # * overlong strings |
b5472e1d NN |
305 | # So, we only use -pedantic if we can disable those warnings. |
306 | ||
307 | AC_CACHE_CHECK( | |
308 | [whether ${CC} accepts -Wno-long-long], | |
309 | [ac_cv_prog_cc_w_no_long_long], | |
310 | [save_CFLAGS="$CFLAGS" | |
311 | CFLAGS="-Wno-long-long" | |
312 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
313 | [ac_cv_prog_cc_w_no_long_long=yes], | |
314 | [ac_cv_prog_cc_w_no_long_long=no]) | |
315 | CFLAGS="$save_CFLAGS" | |
316 | ]) | |
317 | ||
318 | AC_CACHE_CHECK( | |
319 | [whether ${CC} accepts -Wno-variadic-macros], | |
320 | [ac_cv_prog_cc_w_no_variadic_macros], | |
321 | [save_CFLAGS="$CFLAGS" | |
322 | CFLAGS="-Wno-variadic-macros" | |
323 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
324 | [ac_cv_prog_cc_w_no_variadic_macros=yes], | |
325 | [ac_cv_prog_cc_w_no_variadic_macros=no]) | |
326 | CFLAGS="$save_CFLAGS" | |
327 | ]) | |
328 | ||
89a42ac8 ZW |
329 | AC_CACHE_CHECK( |
330 | [whether ${CC} accepts -Wno-overlength-strings], | |
331 | [ac_cv_prog_cc_w_no_overlength_strings], | |
332 | [save_CFLAGS="$CFLAGS" | |
333 | CFLAGS="-Wno-overlength-strings" | |
334 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
335 | [ac_cv_prog_cc_w_no_overlength_strings=yes], | |
336 | [ac_cv_prog_cc_w_no_overlength_strings=no]) | |
337 | CFLAGS="$save_CFLAGS" | |
338 | ]) | |
339 | ||
414d23ae | 340 | strict1_warn= |
b5472e1d | 341 | if test $ac_cv_prog_cc_w_no_long_long = yes \ |
89a42ac8 ZW |
342 | && test $ac_cv_prog_cc_w_no_variadic_macros = yes \ |
343 | && test $ac_cv_prog_cc_w_no_overlength_strings = yes ; then | |
344 | strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings" | |
414d23ae | 345 | fi |
414d23ae | 346 | |
643d3bd2 NN |
347 | # Add -Wold-style-definition if it's accepted |
348 | AC_CACHE_CHECK( | |
349 | [whether ${CC} accepts -Wold-style-definition], | |
350 | [ac_cv_prog_cc_w_old_style_definition], | |
351 | [save_CFLAGS="$CFLAGS" | |
352 | CFLAGS="-Wold-style-definition" | |
353 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
354 | [ac_cv_prog_cc_w_old_style_definition=yes], | |
355 | [ac_cv_prog_cc_w_old_style_definition=no]) | |
356 | CFLAGS="$save_CFLAGS" | |
357 | ]) | |
358 | if test $ac_cv_prog_cc_w_old_style_definition = yes ; then | |
359 | strict1_warn="${strict1_warn} -Wold-style-definition" | |
360 | fi | |
361 | ||
ac0f3f39 KG |
362 | # Add -Wmissing-format-attribute if it's accepted |
363 | AC_CACHE_CHECK( | |
364 | [whether ${CC} accepts -Wmissing-format-attribute], | |
365 | [ac_cv_prog_cc_w_missing_format_attribute], | |
366 | [save_CFLAGS="$CFLAGS" | |
367 | CFLAGS="-Wmissing-format-attribute" | |
368 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
369 | [ac_cv_prog_cc_w_missing_format_attribute=yes], | |
370 | [ac_cv_prog_cc_w_missing_format_attribute=no]) | |
371 | CFLAGS="$save_CFLAGS" | |
372 | ]) | |
373 | if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then | |
374 | strict1_warn="${strict1_warn} -Wmissing-format-attribute" | |
375 | fi | |
376 | ||
09a9c095 NN |
377 | # Enable -Werror, period. |
378 | AC_ARG_ENABLE(werror_always, | |
379 | [ --enable-werror-always enable -Werror always], [], | |
380 | [enable_werror_always=no]) | |
381 | if test x${enable_werror_always} = xyes ; then | |
382 | strict1_warn="${strict1_warn} -Werror" | |
383 | WERROR=-Werror | |
384 | fi | |
385 | ||
ac0f3f39 KG |
386 | AC_SUBST(strict1_warn) |
387 | ||
373477bb GDR |
388 | # Get C++ compatibility warning flag, if supported. |
389 | AC_CACHE_CHECK( | |
390 | [whether ${CC} accepts -Wc++-compat], | |
391 | [ac_cv_prog_cc_w_cxx_compat], | |
392 | [save_CFLAGS="$CFLAGS" | |
393 | CFLAGS="-Wc++-compat" | |
394 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], | |
395 | [ac_cv_prog_cc_w_cxx_compat=yes], | |
396 | [ac_cv_prog_cc_w_cxx_compat=no]) | |
397 | CFLAGS="$save_CFLAGS" | |
398 | ]) | |
399 | if test x${ac_cv_prog_cc_w_cxx_compat} = xyes; then | |
400 | cxx_compat_warn="-Wc++-compat" | |
401 | fi | |
402 | AC_SUBST(cxx_compat_warn) | |
403 | ||
404 | ||
414d23ae HPN |
405 | # If the native compiler is GCC, we can enable warnings even in stage1. |
406 | # That's useful for people building cross-compilers, or just running a | |
407 | # quick `make'. | |
408 | warn_cflags= | |
409 | if test "x$GCC" = "xyes"; then | |
410 | warn_cflags='$(GCC_WARN_CFLAGS)' | |
411 | fi | |
412 | AC_SUBST(warn_cflags) | |
413 | ||
dd859b8a | 414 | # Enable -Werror in bootstrap stage2 and later. |
a1286ef5 ZW |
415 | is_release= |
416 | if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then | |
417 | is_release=yes | |
418 | fi | |
dd859b8a KG |
419 | AC_ARG_ENABLE(werror, |
420 | [ --enable-werror enable -Werror in bootstrap stage2 and later], [], | |
06c37c96 NS |
421 | [if test x$is_release = x ; then |
422 | # Default to "yes" on development branches. | |
423 | enable_werror=yes | |
424 | else | |
425 | # Default to "no" on release branches. | |
426 | enable_werror=no | |
427 | fi]) | |
dd859b8a KG |
428 | if test x$enable_werror = xyes ; then |
429 | WERROR=-Werror | |
430 | fi | |
431 | AC_SUBST(WERROR) | |
432 | ||
a494747c MM |
433 | # Enable expensive internal checks |
434 | AC_ARG_ENABLE(checking, | |
f4524c9e ZW |
435 | [ --enable-checking[=LIST] |
436 | enable expensive run-time checks. With LIST, | |
437 | enable only specific categories of checks. | |
cdce5c16 NS |
438 | Categories are: yes,no,all,none,release. |
439 | Flags are: assert,fold,gc,gcac,misc, | |
440 | rtlflag,rtl,runtime,tree,valgrind.], | |
e1bbfc5c NS |
441 | [ac_checking_flags="${enableval}"],[ |
442 | # Determine the default checks. | |
443 | if test x$is_release = x ; then | |
444 | ac_checking_flags=yes | |
445 | else | |
446 | ac_checking_flags=release | |
447 | fi]) | |
448 | ac_assert_checking=1 | |
449 | ac_checking= | |
cdce5c16 NS |
450 | ac_fold_checking= |
451 | ac_gc_checking= | |
452 | ac_gc_always_collect= | |
119d24d1 | 453 | ac_rtl_checking= |
4c76f856 | 454 | ac_rtlflag_checking= |
b53ef395 | 455 | ac_runtime_checking=1 |
cdce5c16 NS |
456 | ac_tree_checking= |
457 | ac_valgrind_checking= | |
e1bbfc5c NS |
458 | IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," |
459 | for check in $ac_checking_flags | |
460 | do | |
461 | case $check in | |
cdce5c16 | 462 | # these set all the flags to specific states |
e1bbfc5c | 463 | yes) ac_assert_checking=1 ; ac_checking=1 ; |
cdce5c16 NS |
464 | ac_fold_checking= ; ac_gc_checking=1 ; |
465 | ac_gc_always_collect= ; ac_rtl_checking= ; | |
232b67d9 | 466 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; |
cdce5c16 NS |
467 | ac_tree_checking=1 ; ac_valgrind_checking= ;; |
468 | no|none) ac_assert_checking= ; ac_checking= ; | |
469 | ac_fold_checking= ; ac_gc_checking= ; | |
470 | ac_gc_always_collect= ; ac_rtl_checking= ; | |
232b67d9 | 471 | ac_rtlflag_checking= ; ac_runtime_checking= ; |
cdce5c16 | 472 | ac_tree_checking= ; ac_valgrind_checking= ;; |
e1bbfc5c | 473 | all) ac_assert_checking=1 ; ac_checking=1 ; |
cdce5c16 NS |
474 | ac_fold_checking=1 ; ac_gc_checking=1 ; |
475 | ac_gc_always_collect=1 ; ac_rtl_checking=1 ; | |
476 | ac_rtlflag_checking=1 ; ac_runtime_checking=1 ; | |
477 | ac_tree_checking=1 ; ac_valgrind_checking= ;; | |
478 | release) ac_assert_checking=1 ; ac_checking= ; | |
479 | ac_fold_checking= ; ac_gc_checking= ; | |
480 | ac_gc_always_collect= ; ac_rtl_checking= ; | |
481 | ac_rtlflag_checking= ; ac_runtime_checking=1 ; | |
482 | ac_tree_checking= ; ac_valgrind_checking= ;; | |
483 | # these enable particular checks | |
e1bbfc5c NS |
484 | assert) ac_assert_checking=1 ;; |
485 | fold) ac_fold_checking=1 ;; | |
486 | gc) ac_gc_checking=1 ;; | |
487 | gcac) ac_gc_always_collect=1 ;; | |
488 | misc) ac_checking=1 ;; | |
e1bbfc5c | 489 | rtl) ac_rtl_checking=1 ;; |
cdce5c16 | 490 | rtlflag) ac_rtlflag_checking=1 ;; |
b53ef395 | 491 | runtime) ac_runtime_checking=1 ;; |
e1bbfc5c | 492 | tree) ac_tree_checking=1 ;; |
cdce5c16 | 493 | valgrind) ac_valgrind_checking=1 ;; |
e1bbfc5c NS |
494 | *) AC_MSG_ERROR(unknown check category $check) ;; |
495 | esac | |
496 | done | |
497 | IFS="$ac_save_IFS" | |
498 | ||
204250d2 | 499 | nocommon_flag="" |
119d24d1 KG |
500 | if test x$ac_checking != x ; then |
501 | AC_DEFINE(ENABLE_CHECKING, 1, | |
502 | [Define if you want more run-time sanity checks. This one gets a grab | |
503 | bag of miscellaneous but relatively cheap checks.]) | |
204250d2 | 504 | nocommon_flag=-fno-common |
119d24d1 | 505 | fi |
204250d2 | 506 | AC_SUBST(nocommon_flag) |
06c37c96 NS |
507 | if test x$ac_assert_checking != x ; then |
508 | AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, | |
509 | [Define if you want assertions enabled. This is a cheap check.]) | |
510 | fi | |
232b67d9 | 511 | GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING) |
b53ef395 NS |
512 | if test x$ac_runtime_checking != x ; then |
513 | AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1, | |
514 | [Define if you want runtime assertions enabled. This is a cheap check.]) | |
515 | fi | |
119d24d1 KG |
516 | if test x$ac_tree_checking != x ; then |
517 | AC_DEFINE(ENABLE_TREE_CHECKING, 1, | |
518 | [Define if you want all operations on trees (the basic data | |
519 | structure of the front ends) to be checked for dynamic type safety | |
13f05fd0 BM |
520 | at runtime. This is moderately expensive. The tree browser debugging |
521 | routines will also be enabled by this option. | |
522 | ]) | |
523 | TREEBROWSER=tree-browser.o | |
119d24d1 | 524 | fi |
13f05fd0 | 525 | AC_SUBST(TREEBROWSER) |
119d24d1 KG |
526 | if test x$ac_rtl_checking != x ; then |
527 | AC_DEFINE(ENABLE_RTL_CHECKING, 1, | |
528 | [Define if you want all operations on RTL (the basic data structure | |
529 | of the optimizer and back end) to be checked for dynamic type safety | |
530 | at runtime. This is quite expensive.]) | |
531 | fi | |
4c76f856 JJ |
532 | if test x$ac_rtlflag_checking != x ; then |
533 | AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1, | |
534 | [Define if you want RTL flag accesses to be checked against the RTL | |
535 | codes that are supported for each access macro. This is relatively | |
536 | cheap.]) | |
537 | fi | |
119d24d1 KG |
538 | if test x$ac_gc_checking != x ; then |
539 | AC_DEFINE(ENABLE_GC_CHECKING, 1, | |
540 | [Define if you want the garbage collector to do object poisoning and | |
541 | other memory allocation checks. This is quite expensive.]) | |
542 | fi | |
543 | if test x$ac_gc_always_collect != x ; then | |
544 | AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1, | |
545 | [Define if you want the garbage collector to operate in maximally | |
546 | paranoid mode, validating the entire heap and collecting garbage at | |
547 | every opportunity. This is extremely expensive.]) | |
548 | fi | |
5dfa45d0 JJ |
549 | if test x$ac_fold_checking != x ; then |
550 | AC_DEFINE(ENABLE_FOLD_CHECKING, 1, | |
551 | [Define if you want fold checked that it never destructs its argument. | |
552 | This is quite expensive.]) | |
553 | fi | |
414d23ae HPN |
554 | valgrind_path_defines= |
555 | valgrind_command= | |
6938ec6c NN |
556 | |
557 | dnl # This check AC_REQUIREs various stuff, so it *must not* be inside | |
558 | dnl # an if statement. This was the source of very frustrating bugs | |
559 | dnl # in converting to autoconf 2.5x! | |
560 | AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no) | |
561 | ||
cdce5c16 | 562 | if test x$ac_valgrind_checking != x ; then |
414d23ae HPN |
563 | # It is certainly possible that there's valgrind but no valgrind.h. |
564 | # GCC relies on making annotations so we must have both. | |
a207b594 | 565 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>) |
f04f1d2c KC |
566 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( |
567 | [[#include <valgrind/memcheck.h> | |
a207b594 HPN |
568 | #ifndef VALGRIND_DISCARD |
569 | #error VALGRIND_DISCARD not defined | |
f04f1d2c | 570 | #endif]])], |
a207b594 HPN |
571 | [gcc_cv_header_valgrind_memcheck_h=yes], |
572 | [gcc_cv_header_valgrind_memcheck_h=no]) | |
573 | AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) | |
14011ca4 | 574 | AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>) |
f04f1d2c KC |
575 | AC_PREPROC_IFELSE([AC_LANG_SOURCE( |
576 | [[#include <memcheck.h> | |
14011ca4 AJ |
577 | #ifndef VALGRIND_DISCARD |
578 | #error VALGRIND_DISCARD not defined | |
f04f1d2c KC |
579 | #endif]])], |
580 | [gcc_cv_header_memcheck_h=yes], | |
581 | [gcc_cv_header_memcheck_h=no]) | |
14011ca4 | 582 | AC_MSG_RESULT($gcc_cv_header_memcheck_h) |
414d23ae HPN |
583 | AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind, |
584 | [$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1]) | |
a207b594 HPN |
585 | if test "x$valgrind_path" = "x" \ |
586 | || (test $have_valgrind_h = no \ | |
587 | && test $gcc_cv_header_memcheck_h = no \ | |
588 | && test $gcc_cv_header_valgrind_memcheck_h = no); then | |
589 | AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h]) | |
414d23ae HPN |
590 | fi |
591 | valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"' | |
592 | valgrind_command="$valgrind_path -q" | |
593 | AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1, | |
594 | [Define if you want to run subprograms and generated programs | |
595 | through valgrind (a memory checker). This is extremely expensive.]) | |
a207b594 HPN |
596 | if test $gcc_cv_header_valgrind_memcheck_h = yes; then |
597 | AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1, | |
598 | [Define if valgrind's valgrind/memcheck.h header is installed.]) | |
599 | fi | |
14011ca4 AJ |
600 | if test $gcc_cv_header_memcheck_h = yes; then |
601 | AC_DEFINE(HAVE_MEMCHECK_H, 1, | |
602 | [Define if valgrind's memcheck.h header is installed.]) | |
603 | fi | |
414d23ae HPN |
604 | fi |
605 | AC_SUBST(valgrind_path_defines) | |
606 | AC_SUBST(valgrind_command) | |
51d0e20c | 607 | |
74ee1642 PB |
608 | AC_ARG_ENABLE(mapped-location, |
609 | [ --enable-mapped-location location_t is fileline integer cookie],, | |
610 | enable_mapped_location=no) | |
611 | ||
612 | if test "$enable_mapped_location" = yes ; then | |
613 | AC_DEFINE(USE_MAPPED_LOCATION, 1, | |
614 | [Define if location_t is fileline integer cookie.]) | |
615 | fi | |
616 | ||
22aa533e NS |
617 | # Enable code coverage collection |
618 | AC_ARG_ENABLE(coverage, | |
619 | [ --enable-coverage[=LEVEL] | |
fb38008e | 620 | enable compiler's code coverage collection. |
22aa533e | 621 | Use to measure compiler performance and locate |
8601608f | 622 | unused parts of the compiler. With LEVEL, specify |
22aa533e NS |
623 | optimization. Values are opt, noopt, |
624 | default is noopt], | |
625 | [case "${enableval}" in | |
6dd297da NN |
626 | yes|noopt) |
627 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0" | |
628 | ;; | |
629 | opt) | |
630 | coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2" | |
631 | ;; | |
632 | no) | |
633 | # a.k.a. --disable-coverage | |
634 | coverage_flags="" | |
635 | ;; | |
636 | *) | |
637 | AC_MSG_ERROR(unknown coverage setting $enableval) | |
638 | ;; | |
22aa533e | 639 | esac], |
2043c38e | 640 | [coverage_flags=""]) |
22aa533e NS |
641 | AC_SUBST(coverage_flags) |
642 | ||
439a7e54 DN |
643 | AC_ARG_ENABLE(gather-detailed-mem-stats, |
644 | [ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [], | |
645 | [enable_gather_detailed_mem_stats=no]) | |
646 | if test x$enable_gather_detailed_mem_stats = xyes ; then | |
647 | AC_DEFINE(GATHER_STATISTICS, 1, | |
648 | [Define to enable detailed memory allocation stats gathering.]) | |
649 | fi | |
650 | ||
73458fb7 NN |
651 | # ------------------------------- |
652 | # Miscenalleous configure options | |
653 | # ------------------------------- | |
34a86c2b NN |
654 | |
655 | # With stabs | |
656 | AC_ARG_WITH(stabs, | |
657 | [ --with-stabs arrange to use stabs instead of host debug format], | |
658 | stabs="$with_stabs", | |
659 | stabs=no) | |
660 | ||
34a86c2b NN |
661 | # Determine whether or not multilibs are enabled. |
662 | AC_ARG_ENABLE(multilib, | |
663 | [ --enable-multilib enable library support for multiple ABIs], | |
664 | [], [enable_multilib=yes]) | |
665 | AC_SUBST(enable_multilib) | |
3ecc3258 | 666 | |
4bafaa6f L |
667 | # Enable __cxa_atexit for C++. |
668 | AC_ARG_ENABLE(__cxa_atexit, | |
669 | [ --enable-__cxa_atexit enable __cxa_atexit for C++], | |
670 | [], []) | |
2121a768 | 671 | |
486aa804 BE |
672 | # Enable C extension for decimal float if target supports it. |
673 | AC_ARG_ENABLE(decimal-float, | |
674 | [ --enable-decimal-float enable decimal float extension to C], | |
675 | [ | |
676 | if test x$enablevar = xyes ; then | |
677 | case $target in | |
678 | powerpc*-*-linux* | i?86*-*-linux*) | |
a4a9df5f | 679 | enable_decimal_float=yes |
486aa804 BE |
680 | ;; |
681 | *) | |
682 | AC_MSG_WARN(decimal float is not supported for this target, ignored) | |
683 | enable_decimal_float=no | |
684 | ;; | |
685 | esac | |
686 | fi | |
a4a9df5f | 687 | ], [enable_decimal_float=no]) |
486aa804 BE |
688 | |
689 | AC_SUBST(enable_decimal_float) | |
690 | ||
691 | dfp=`if test $enable_decimal_float = yes; then echo 1; else echo 0; fi` | |
692 | AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp, | |
693 | [Define to 1 to enable decimal float extension to C.]) | |
694 | ||
0bbb1697 RK |
695 | # Enable threads |
696 | # Pass with no value to take the default | |
697 | # Pass with a value to specify a thread package | |
698 | AC_ARG_ENABLE(threads, | |
e8bec136 RO |
699 | [ --enable-threads enable thread usage for target GCC |
700 | --enable-threads=LIB use LIB thread package for target GCC],, | |
615be2cf | 701 | [enable_threads='']) |
0bbb1697 | 702 | |
8dea1cca DD |
703 | AC_ARG_ENABLE(tls, |
704 | [ --enable-tls enable or disable generation of tls code | |
705 | overriding the assembler check for tls support], | |
706 | [ | |
707 | case $enable_tls in | |
708 | yes | no) ;; | |
709 | *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls. | |
710 | Valid choices are 'yes' and 'no'.]) ;; | |
711 | esac | |
712 | ], [enable_tls='']) | |
713 | ||
d8bb17c8 OP |
714 | AC_ARG_ENABLE(objc-gc, |
715 | [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
e8bec136 | 716 | the GNU Objective-C runtime], |
2618c083 | 717 | if test x$enable_objc_gc = xno; then |
d8bb17c8 OP |
718 | objc_boehm_gc='' |
719 | else | |
720 | objc_boehm_gc=1 | |
721 | fi, | |
722 | objc_boehm_gc='') | |
723 | ||
90e6a802 | 724 | AC_ARG_WITH(dwarf2, |
e8bec136 | 725 | [ --with-dwarf2 force the default debug format to be DWARF 2], |
90e6a802 RL |
726 | dwarf2="$with_dwarf2", |
727 | dwarf2=no) | |
728 | ||
50503ac8 | 729 | AC_ARG_ENABLE(shared, |
e8bec136 | 730 | [ --disable-shared don't provide a shared libgcc], |
c785e0fa AO |
731 | [ |
732 | case $enable_shared in | |
733 | yes | no) ;; | |
734 | *) | |
735 | enable_shared=no | |
736 | IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:," | |
737 | for pkg in $enableval; do | |
738 | if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then | |
739 | enable_shared=yes | |
740 | fi | |
741 | done | |
742 | IFS="$ac_save_ifs" | |
743 | ;; | |
744 | esac | |
745 | ], [enable_shared=yes]) | |
50503ac8 RH |
746 | AC_SUBST(enable_shared) |
747 | ||
160633c6 MM |
748 | AC_ARG_WITH(build-sysroot, |
749 | [ --with-build-sysroot=sysroot | |
750 | use sysroot as the system root during the build]) | |
751 | ||
4977bab6 ZW |
752 | AC_ARG_WITH(sysroot, |
753 | [ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.], | |
754 | [ | |
755 | case ${with_sysroot} in | |
caa55b1e | 756 | yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;; |
4977bab6 ZW |
757 | *) TARGET_SYSTEM_ROOT=$with_sysroot ;; |
758 | esac | |
759 | ||
760 | TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"' | |
761 | CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)' | |
b28250ab | 762 | |
047d636f DJ |
763 | if test "x$exec_prefix" = xNONE; then |
764 | if test "x$prefix" = xNONE; then | |
765 | test_prefix=/usr/local | |
766 | else | |
767 | test_prefix=$prefix | |
768 | fi | |
769 | else | |
770 | test_prefix=$exec_prefix | |
771 | fi | |
772 | case ${TARGET_SYSTEM_ROOT} in | |
91710e62 AO |
773 | "${test_prefix}"|"${test_prefix}/"*|\ |
774 | '${exec_prefix}'|'${exec_prefix}/'*) | |
047d636f DJ |
775 | t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE" |
776 | TARGET_SYSTEM_ROOT_DEFINE="$t" | |
777 | ;; | |
778 | esac | |
4977bab6 ZW |
779 | ], [ |
780 | TARGET_SYSTEM_ROOT= | |
db720d9a | 781 | TARGET_SYSTEM_ROOT_DEFINE= |
4977bab6 ZW |
782 | CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include' |
783 | ]) | |
784 | AC_SUBST(TARGET_SYSTEM_ROOT) | |
785 | AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE) | |
786 | AC_SUBST(CROSS_SYSTEM_HEADER_DIR) | |
787 | ||
d1bd0ded | 788 | # Build with intermodule optimisations |
d1bd0ded GK |
789 | AC_ARG_ENABLE(intermodule, |
790 | [ --enable-intermodule build the compiler in one step], | |
0c46c5c7 KC |
791 | [case ${enable_intermodule} in |
792 | yes) onestep="-onestep";; | |
793 | *) onestep="";; | |
794 | esac], | |
795 | [onestep=""]) | |
d1bd0ded GK |
796 | AC_SUBST(onestep) |
797 | ||
e4c9c075 PB |
798 | # Sanity check enable_languages in case someone does not run the toplevel |
799 | # configure # script. | |
800 | AC_ARG_ENABLE(languages, | |
801 | [ --enable-languages=LIST specify which front-ends to build], | |
802 | [case ,${enable_languages}, in | |
803 | ,,|,yes,) | |
804 | # go safe -- we cannot be much sure without the toplevel | |
805 | # configure's | |
806 | # analysis of which target libs are present and usable | |
807 | enable_languages=c | |
808 | ;; | |
809 | *,all,*) | |
810 | AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) | |
811 | ;; | |
812 | *,c,*) | |
813 | ;; | |
814 | *) | |
815 | enable_languages=c,${enable_languages} | |
816 | ;; | |
817 | esac], | |
818 | [enable_languages=c]) | |
819 | ||
820 | subdirs= | |
821 | for lang in ${srcdir}/*/config-lang.in | |
822 | do | |
823 | case $lang in | |
824 | # The odd quoting in the next line works around | |
825 | # an apparent bug in bash 1.12 on linux. | |
826 | changequote(,)dnl | |
827 | ${srcdir}/[*]/config-lang.in) ;; | |
828 | *) | |
829 | lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang` | |
830 | if test "x$lang_alias" = x | |
831 | then | |
832 | echo "$lang doesn't set \$language." 1>&2 | |
833 | exit 1 | |
834 | fi | |
835 | case ",$enable_languages," in | |
836 | *,$lang_alias,*) | |
837 | subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;; | |
838 | esac | |
839 | ;; | |
840 | changequote([,])dnl | |
841 | esac | |
842 | done | |
843 | ||
844 | ||
73458fb7 NN |
845 | # ------------------------- |
846 | # Checks for other programs | |
847 | # ------------------------- | |
61842080 | 848 | |
e9a25f70 JL |
849 | AC_PROG_MAKE_SET |
850 | ||
46f18e7b RK |
851 | # Find some useful tools |
852 | AC_PROG_AWK | |
776dc15d | 853 | # We need awk to create options.c and options.h. |
2c4902b9 NN |
854 | # Bail out if it's missing. |
855 | case ${AWK} in | |
856 | "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; | |
857 | esac | |
858 | ||
99e757d5 | 859 | gcc_AC_PROG_LN_S |
ad6717df | 860 | ACX_PROG_LN($LN_S) |
46f18e7b | 861 | AC_PROG_RANLIB |
343a6100 MM |
862 | case "${host}" in |
863 | *-*-darwin*) | |
864 | # By default, the Darwin ranlib will not treat common symbols as | |
865 | # definitions when building the archive table of contents. Other | |
866 | # ranlibs do that; pass an option to the Darwin ranlib that makes | |
867 | # it behave similarly. | |
868 | ranlib_flags="-c" | |
869 | ;; | |
870 | *) | |
871 | ranlib_flags="" | |
872 | esac | |
873 | AC_SUBST(ranlib_flags) | |
874 | ||
99e757d5 | 875 | gcc_AC_PROG_INSTALL |
46f18e7b | 876 | |
3a000df0 KC |
877 | # See if cmp has --ignore-initial. |
878 | gcc_AC_PROG_CMP_IGNORE_INITIAL | |
879 | ||
955be633 JM |
880 | # See if we have the mktemp command. |
881 | AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) | |
882 | ||
7c27e184 PB |
883 | MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing" |
884 | ||
885 | # See if makeinfo has been installed and is modern enough | |
886 | # that we can use it. | |
887 | gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version, | |
09fa0705 | 888 | [GNU texinfo.* \([0-9][0-9.]*\)], |
1a598a97 | 889 | [4.[4-9]*]) |
09fa0705 | 890 | if test $gcc_cv_prog_makeinfo_modern = no; then |
7c27e184 | 891 | MAKEINFO="$MISSING makeinfo" |
09fa0705 ZW |
892 | AC_MSG_WARN([ |
893 | *** Makeinfo is missing or too old. | |
17db6582 | 894 | *** Info documentation will not be built.]) |
09fa0705 | 895 | BUILD_INFO= |
09fa0705 | 896 | else |
7c27e184 | 897 | BUILD_INFO=info |
09fa0705 | 898 | fi |
7c27e184 | 899 | AC_SUBST(BUILD_INFO) |
09fa0705 | 900 | |
3f896fc2 JM |
901 | # Is pod2man recent enough to regenerate manpages? |
902 | AC_MSG_CHECKING([for recent Pod::Man]) | |
7be33370 | 903 | if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then |
fd939e46 | 904 | AC_MSG_RESULT(yes) |
7c27e184 | 905 | GENERATED_MANPAGES=generated-manpages |
fd939e46 JM |
906 | else |
907 | AC_MSG_RESULT(no) | |
908 | GENERATED_MANPAGES= | |
909 | fi | |
7c27e184 | 910 | AC_SUBST(GENERATED_MANPAGES) |
fd939e46 | 911 | |
1e608388 ZW |
912 | # How about lex? |
913 | dnl Don't use AC_PROG_LEX; we insist on flex. | |
914 | dnl LEXLIB is not useful in gcc. | |
7c27e184 | 915 | AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) |
1e608388 ZW |
916 | |
917 | # Bison? | |
7c27e184 PB |
918 | AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) |
919 | ||
920 | # Binutils are not build modules, unlike bison/flex/makeinfo. So we | |
921 | # check for build == host before using them. | |
1e608388 | 922 | |
f6a874ac | 923 | # NM |
414adbdd GK |
924 | if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ |
925 | && test -d ../binutils ; then | |
f6a874ac JW |
926 | NM='$(objdir)/../binutils/nm-new' |
927 | else | |
928 | AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm) | |
929 | fi | |
930 | ||
931 | # AR | |
414adbdd GK |
932 | if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \ |
933 | && test -d ../binutils ; then | |
f6a874ac JW |
934 | AR='$(objdir)/../binutils/ar' |
935 | else | |
936 | AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) | |
937 | fi | |
938 | ||
939 | ||
73458fb7 NN |
940 | # -------------------- |
941 | # Checks for C headers | |
942 | # -------------------- | |
943 | ||
944 | AC_MSG_CHECKING(for GNU C library) | |
945 | AC_CACHE_VAL(gcc_cv_glibc, | |
f04f1d2c KC |
946 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
947 | [[#include <features.h>]], [[ | |
73458fb7 NN |
948 | #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__) |
949 | #error Not a GNU C library system | |
f04f1d2c KC |
950 | #endif]])], |
951 | [gcc_cv_glibc=yes], | |
952 | [gcc_cv_glibc=no])]) | |
73458fb7 NN |
953 | AC_MSG_RESULT($gcc_cv_glibc) |
954 | if test $gcc_cv_glibc = yes; then | |
955 | AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library]) | |
956 | fi | |
957 | ||
ca9bc441 NN |
958 | # Need to reject headers which give warnings, so that the -Werror bootstrap |
959 | # works later. *sigh* This needs to come before all header checks. | |
960 | AC_PROG_CPP_WERROR | |
961 | ||
73458fb7 NN |
962 | AC_HEADER_STDC |
963 | AC_HEADER_TIME | |
4f4e53dd | 964 | ACX_HEADER_STRING |
73458fb7 | 965 | AC_HEADER_SYS_WAIT |
dfb77e37 | 966 | AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \ |
1072ec3f | 967 | fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \ |
73458fb7 | 968 | sys/resource.h sys/param.h sys/times.h sys/stat.h \ |
56694dd9 | 969 | direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h) |
73458fb7 NN |
970 | |
971 | # Check for thread headers. | |
972 | AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=]) | |
973 | AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=]) | |
974 | ||
975 | # These tests can't be done till we know if we have limits.h. | |
976 | gcc_AC_C_CHAR_BIT | |
9791c75c | 977 | AC_C_BIGENDIAN |
73458fb7 NN |
978 | |
979 | # -------- | |
980 | # UNSORTED | |
981 | # -------- | |
982 | ||
983 | # Stage specific cflags for build. | |
984 | stage1_cflags= | |
985 | case $build in | |
986 | vax-*-*) | |
987 | if test x$GCC = xyes | |
988 | then | |
989 | stage1_cflags="-Wa,-J" | |
990 | else | |
991 | stage1_cflags="-J" | |
992 | fi | |
993 | ;; | |
994 | powerpc-*-darwin*) | |
995 | # The spiffy cpp-precomp chokes on some legitimate constructs in GCC | |
996 | # sources; use -no-cpp-precomp to get to GNU cpp. | |
997 | # Apple's GCC has bugs in designated initializer handling, so disable | |
998 | # that too. | |
999 | stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0" | |
1000 | ;; | |
1001 | esac | |
1002 | AC_SUBST(stage1_cflags) | |
1003 | ||
4e70264f ZW |
1004 | # These libraries may be used by collect2. |
1005 | # We may need a special search path to get them linked. | |
1006 | AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs, | |
1007 | [save_LIBS="$LIBS" | |
7f2749d4 | 1008 | for libs in '' -lld -lmld \ |
4e70264f ZW |
1009 | '-L/usr/lib/cmplrs/cc2.11 -lmld' \ |
1010 | '-L/usr/lib/cmplrs/cc3.11 -lmld' | |
1011 | do | |
1012 | LIBS="$libs" | |
1013 | AC_TRY_LINK_FUNC(ldopen, | |
1014 | [gcc_cv_collect2_libs="$libs"; break]) | |
1015 | done | |
1016 | LIBS="$save_LIBS" | |
1017 | test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required']) | |
1018 | case $gcc_cv_collect2_libs in | |
1019 | "none required") ;; | |
1020 | *) COLLECT2_LIBS=$gcc_cv_collect2_libs ;; | |
1021 | esac | |
1022 | AC_SUBST(COLLECT2_LIBS) | |
1023 | ||
7f2749d4 RK |
1024 | # When building Ada code on Alpha, we need exc_resume which is usually in |
1025 | # -lexc. So test for it. | |
1026 | save_LIBS="$LIBS" | |
1027 | LIBS= | |
1028 | AC_SEARCH_LIBS(exc_resume, exc) | |
1029 | GNAT_LIBEXC="$LIBS" | |
1030 | LIBS="$save_LIBS" | |
1031 | AC_SUBST(GNAT_LIBEXC) | |
1032 | ||
62c9aa5f ZW |
1033 | # Some systems put ldexp and frexp in libm instead of libc; assume |
1034 | # they're both in the same place. jcf-dump needs them. | |
1035 | save_LIBS="$LIBS" | |
1036 | LIBS= | |
1037 | AC_SEARCH_LIBS(ldexp, m) | |
1038 | LDEXP_LIB="$LIBS" | |
1039 | LIBS="$save_LIBS" | |
1040 | AC_SUBST(LDEXP_LIB) | |
1041 | ||
7636d567 JW |
1042 | # Use <inttypes.h> only if it exists, |
1043 | # doesn't clash with <sys/types.h>, and declares intmax_t. | |
1044 | AC_MSG_CHECKING(for inttypes.h) | |
1045 | AC_CACHE_VAL(gcc_cv_header_inttypes_h, | |
f04f1d2c KC |
1046 | [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( |
1047 | [[#include <sys/types.h> | |
1048 | #include <inttypes.h>]], | |
1049 | [[intmax_t i = -1;]])], | |
9da0e39b | 1050 | [gcc_cv_header_inttypes_h=yes], |
f04f1d2c | 1051 | [gcc_cv_header_inttypes_h=no])]) |
7636d567 | 1052 | AC_MSG_RESULT($gcc_cv_header_inttypes_h) |
9da0e39b | 1053 | if test $gcc_cv_header_inttypes_h = yes; then |
119d24d1 KG |
1054 | AC_DEFINE(HAVE_INTTYPES_H, 1, |
1055 | [Define if you have a working <inttypes.h> header file.]) | |
9da0e39b | 1056 | fi |
cdcc6a01 | 1057 | |
9612ab65 ZW |
1058 | dnl Disabled until we have a complete test for buggy enum bitfields. |
1059 | dnl gcc_AC_C_ENUM_BF_UNSIGNED | |
c149cc37 | 1060 | |
0d667716 KG |
1061 | define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl |
1062 | ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl | |
1063 | fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl | |
1064 | fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl | |
1065 | putchar_unlocked putc_unlocked) | |
52a6edcc | 1066 | AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \ |
0d667716 KG |
1067 | sysconf strsignal getrusage nl_langinfo scandir alphasort \ |
1068 | gettimeofday mbstowcs wcswidth mmap mincore setlocale \ | |
1069 | gcc_UNLOCKED_FUNCS) | |
a81fb89e | 1070 | |
39f6c4c8 KW |
1071 | if test x$ac_cv_func_mbstowcs = xyes; then |
1072 | AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, | |
f04f1d2c | 1073 | [ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h> |
39f6c4c8 KW |
1074 | int main() |
1075 | { | |
1076 | mbstowcs(0, "", 0); | |
1077 | return 0; | |
f04f1d2c KC |
1078 | }]])], |
1079 | [gcc_cv_func_mbstowcs_works=yes], | |
1080 | [gcc_cv_func_mbstowcs_works=no], | |
1081 | [gcc_cv_func_mbstowcs_works=yes])]) | |
39f6c4c8 KW |
1082 | if test x$gcc_cv_func_mbstowcs_works = xyes; then |
1083 | AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1, | |
1084 | [Define this macro if mbstowcs does not crash when its | |
1085 | first argument is NULL.]) | |
1086 | fi | |
1087 | fi | |
1088 | ||
78c9cb99 | 1089 | AC_CHECK_TYPE(ssize_t, int) |
56f48ce9 | 1090 | |
e256b8b6 DA |
1091 | # Try to determine the array type of the second argument of getgroups |
1092 | # for the target system (int or gid_t). | |
1093 | AC_TYPE_GETGROUPS | |
1094 | if test "${target}" = "${build}"; then | |
1095 | TARGET_GETGROUPS_T=$ac_cv_type_getgroups | |
1096 | else | |
1097 | case "${target}" in | |
1098 | # This condition may need some tweaking. It should include all | |
1099 | # targets where the array type of the second argument of getgroups | |
1100 | # is int and the type of gid_t is not equivalent to int. | |
1101 | *-*-sunos* | *-*-ultrix*) | |
1102 | TARGET_GETGROUPS_T=int | |
1103 | ;; | |
1104 | *) | |
1105 | TARGET_GETGROUPS_T=gid_t | |
1106 | ;; | |
1107 | esac | |
1108 | fi | |
1109 | AC_SUBST(TARGET_GETGROUPS_T) | |
1110 | ||
1072ec3f | 1111 | gcc_AC_FUNC_MMAP_BLACKLIST |
b27d2bd5 MK |
1112 | |
1113 | case "${host}" in | |
ee262b6f | 1114 | *-*-*vms*) |
2c55543b | 1115 | # Under VMS, vfork works very differently than on Unix. The standard test |
ee262b6f DR |
1116 | # won't work, and it isn't easily adaptable. It makes more sense to |
1117 | # just force it. | |
1118 | ac_cv_func_vfork_works=yes | |
1119 | ;; | |
b27d2bd5 | 1120 | esac |
f04f1d2c | 1121 | AC_FUNC_FORK |
f1b54f9b | 1122 | |
f91abfce | 1123 | AM_ICONV |
56694dd9 ZW |
1124 | # Until we have in-tree GNU iconv: |
1125 | LIBICONV_DEP= | |
1126 | AC_SUBST(LIBICONV_DEP) | |
1127 | ||
1128 | AM_LC_MESSAGES | |
f91abfce | 1129 | |
a03ea89b BM |
1130 | AM_LANGINFO_CODESET |
1131 | ||
86cf1cbd KG |
1132 | # We will need to find libiberty.h and ansidecl.h |
1133 | saved_CFLAGS="$CFLAGS" | |
1134 | CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include" | |
ed5b9f96 GK |
1135 | gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \ |
1136 | strsignal strstr strverscmp \ | |
1137 | errno snprintf vsnprintf vasprintf malloc realloc calloc \ | |
367e8319 | 1138 | free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[ |
d02af173 | 1139 | #include "ansidecl.h" |
86cf1cbd | 1140 | #include "system.h"]) |
c5c76735 | 1141 | |
f31e826b | 1142 | gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[ |
d02af173 | 1143 | #include "ansidecl.h" |
86cf1cbd | 1144 | #include "system.h" |
d2cabf16 KG |
1145 | #ifdef HAVE_SYS_RESOURCE_H |
1146 | #include <sys/resource.h> | |
1147 | #endif | |
1148 | ]) | |
1149 | ||
f04f1d2c | 1150 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
b2522d2b HPN |
1151 | #include "ansidecl.h" |
1152 | #include "system.h" | |
1153 | #ifdef HAVE_SYS_RESOURCE_H | |
1154 | #include <sys/resource.h> | |
1155 | #endif | |
f04f1d2c | 1156 | ]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long], |
b2522d2b HPN |
1157 | [Define to \`long' if <sys/resource.h> doesn't define.])]) |
1158 | ||
2102b2fe RS |
1159 | # On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible |
1160 | # FREAD and FWRITE macros. Fortunately, for GCC's single usage of ldgetname | |
1161 | # in collect2.c, <fcntl.h> isn't visible, but the configure test below needs | |
1162 | # to undef these macros to get the correct value for HAVE_DECL_LDGETNAME. | |
351df804 KG |
1163 | gcc_AC_CHECK_DECLS(ldgetname, , ,[ |
1164 | #include "ansidecl.h" | |
1165 | #include "system.h" | |
1166 | #ifdef HAVE_LDFCN_H | |
2102b2fe RS |
1167 | #undef FREAD |
1168 | #undef FWRITE | |
351df804 KG |
1169 | #include <ldfcn.h> |
1170 | #endif | |
1171 | ]) | |
1172 | ||
c1800ec8 ZW |
1173 | gcc_AC_CHECK_DECLS(times, , ,[ |
1174 | #include "ansidecl.h" | |
1175 | #include "system.h" | |
1176 | #ifdef HAVE_SYS_TIMES_H | |
1177 | #include <sys/times.h> | |
1178 | #endif | |
1179 | ]) | |
1180 | ||
1181 | # More time-related stuff. | |
1182 | AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [ | |
f04f1d2c | 1183 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1184 | #include "ansidecl.h" |
1185 | #include "system.h" | |
1186 | #ifdef HAVE_SYS_TIMES_H | |
1187 | #include <sys/times.h> | |
1188 | #endif | |
f04f1d2c | 1189 | ]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])]) |
c1800ec8 ZW |
1190 | if test $ac_cv_struct_tms = yes; then |
1191 | AC_DEFINE(HAVE_STRUCT_TMS, 1, | |
1192 | [Define if <sys/times.h> defines struct tms.]) | |
1193 | fi | |
1194 | ||
1195 | # use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE. | |
1196 | # revisit after autoconf 2.50. | |
1197 | AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [ | |
f04f1d2c | 1198 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ |
c1800ec8 ZW |
1199 | #include "ansidecl.h" |
1200 | #include "system.h" | |
f04f1d2c | 1201 | ]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])]) |
c1800ec8 ZW |
1202 | if test $gcc_cv_type_clock_t = yes; then |
1203 | AC_DEFINE(HAVE_CLOCK_T, 1, | |
1204 | [Define if <time.h> defines clock_t.]) | |
1205 | fi | |
1206 | ||
86cf1cbd KG |
1207 | # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. |
1208 | CFLAGS="$saved_CFLAGS" | |
1209 | ||
eb70d86d AS |
1210 | gcc_AC_INITFINI_ARRAY |
1211 | ||
75923b2f | 1212 | # mkdir takes a single argument on some systems. |
99e757d5 | 1213 | gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |
75923b2f | 1214 | |
46f18e7b RK |
1215 | # File extensions |
1216 | manext='.1' | |
1217 | objext='.o' | |
46f18e7b RK |
1218 | AC_SUBST(manext) |
1219 | AC_SUBST(objext) | |
46f18e7b | 1220 | |
4977bab6 ZW |
1221 | # With Setjmp/Longjmp based exception handling. |
1222 | AC_ARG_ENABLE(sjlj-exceptions, | |
1223 | [ --enable-sjlj-exceptions | |
1224 | arrange to use setjmp/longjmp exception handling], | |
1225 | [sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi` | |
1226 | AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj, | |
1227 | [Define 0/1 to force the choice for exception handling model.])]) | |
1228 | ||
443728bb L |
1229 | # For platforms with the unwind ABI which includes an unwind library, |
1230 | # libunwind, we can choose to use the system libunwind. | |
1231 | AC_ARG_WITH(system-libunwind, | |
1232 | [ --with-system-libunwind use installed libunwind]) | |
4977bab6 | 1233 | |
34a86c2b NN |
1234 | # -------------------------------------------------------- |
1235 | # Build, host, and target specific configuration fragments | |
1236 | # -------------------------------------------------------- | |
1237 | ||
5b28c537 NN |
1238 | # Collect build-machine-specific information. |
1239 | . ${srcdir}/config.build | |
1240 | ||
a89ea0df NN |
1241 | # Collect host-machine-specific information. |
1242 | . ${srcdir}/config.host | |
1243 | ||
ef69da62 | 1244 | target_gtfiles= |
a89ea0df NN |
1245 | |
1246 | # Collect target-machine-specific information. | |
b01bc573 | 1247 | . ${srcdir}/config.gcc |
46f18e7b RK |
1248 | |
1249 | extra_objs="${host_extra_objs} ${extra_objs}" | |
30500d84 | 1250 | extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}" |
46f18e7b RK |
1251 | |
1252 | # Default the target-machine variables that were not explicitly set. | |
75bffa71 | 1253 | if test x"$tm_file" = x |
46f18e7b RK |
1254 | then tm_file=$cpu_type/$cpu_type.h; fi |
1255 | ||
6b2adea9 | 1256 | if test x"$extra_headers" = x |
46f18e7b RK |
1257 | then extra_headers=; fi |
1258 | ||
75bffa71 | 1259 | if test x$md_file = x |
e98e406f | 1260 | then md_file=$cpu_type/$cpu_type.md; fi |
46f18e7b | 1261 | |
75bffa71 | 1262 | if test x$out_file = x |
46f18e7b RK |
1263 | then out_file=$cpu_type/$cpu_type.c; fi |
1264 | ||
75bffa71 | 1265 | if test x"$tmake_file" = x |
46f18e7b RK |
1266 | then tmake_file=$cpu_type/t-$cpu_type |
1267 | fi | |
1268 | ||
90e6a802 | 1269 | if test x"$dwarf2" = xyes |
756ee602 | 1270 | then tm_file="$tm_file tm-dwarf2.h" |
90e6a802 RL |
1271 | fi |
1272 | ||
46f18e7b | 1273 | # Say what files are being used for the output code and MD file. |
11642c3a | 1274 | echo "Using \`$srcdir/config/$out_file' for machine-specific logic." |
46f18e7b RK |
1275 | echo "Using \`$srcdir/config/$md_file' as machine description file." |
1276 | ||
11642c3a | 1277 | # If any of the xm_file variables contain nonexistent files, warn |
4dc0535b ZW |
1278 | # about them and drop them. |
1279 | ||
11642c3a ZW |
1280 | bx= |
1281 | for x in $build_xm_file; do | |
1282 | if test -f $srcdir/config/$x | |
1283 | then bx="$bx $x" | |
11642c3a ZW |
1284 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1285 | fi | |
1286 | done | |
1287 | build_xm_file="$bx" | |
1288 | ||
1289 | hx= | |
1290 | for x in $host_xm_file; do | |
1291 | if test -f $srcdir/config/$x | |
1292 | then hx="$hx $x" | |
11642c3a ZW |
1293 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1294 | fi | |
1295 | done | |
1296 | host_xm_file="$hx" | |
1297 | ||
1298 | tx= | |
1299 | for x in $xm_file; do | |
1300 | if test -f $srcdir/config/$x | |
1301 | then tx="$tx $x" | |
11642c3a ZW |
1302 | else AC_MSG_WARN($srcdir/config/$x does not exist.) |
1303 | fi | |
1304 | done | |
1305 | xm_file="$tx" | |
1306 | ||
46f18e7b RK |
1307 | count=a |
1308 | for f in $tm_file; do | |
1309 | count=${count}x | |
1310 | done | |
75bffa71 | 1311 | if test $count = ax; then |
46f18e7b RK |
1312 | echo "Using \`$srcdir/config/$tm_file' as target machine macro file." |
1313 | else | |
1314 | echo "Using the following target machine macro files:" | |
1315 | for f in $tm_file; do | |
1316 | echo " $srcdir/config/$f" | |
1317 | done | |
1318 | fi | |
1319 | ||
4977bab6 ZW |
1320 | if test x$need_64bit_hwint = xyes; then |
1321 | AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, | |
1322 | [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) | |
1323 | fi | |
1324 | ||
99fa8911 AP |
1325 | if test x$use_long_long_for_widest_fast_int = xyes; then |
1326 | AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, | |
1327 | [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still | |
1328 | efficiently supported by the host hardware.]) | |
1329 | fi | |
1330 | ||
46f18e7b RK |
1331 | count=a |
1332 | for f in $host_xm_file; do | |
1333 | count=${count}x | |
1334 | done | |
11642c3a ZW |
1335 | if test $count = a; then |
1336 | : | |
1337 | elif test $count = ax; then | |
46f18e7b RK |
1338 | echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file." |
1339 | else | |
1340 | echo "Using the following host machine macro files:" | |
1341 | for f in $host_xm_file; do | |
1342 | echo " $srcdir/config/$f" | |
1343 | done | |
1344 | fi | |
476d9098 | 1345 | echo "Using ${out_host_hook_obj} for host machine hooks." |
46f18e7b | 1346 | |
75bffa71 | 1347 | if test "$host_xm_file" != "$build_xm_file"; then |
46f18e7b RK |
1348 | count=a |
1349 | for f in $build_xm_file; do | |
1350 | count=${count}x | |
1351 | done | |
11642c3a ZW |
1352 | if test $count = a; then |
1353 | : | |
1354 | elif test $count = ax; then | |
46f18e7b RK |
1355 | echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file." |
1356 | else | |
1357 | echo "Using the following build machine macro files:" | |
1358 | for f in $build_xm_file; do | |
1359 | echo " $srcdir/config/$f" | |
1360 | done | |
1361 | fi | |
1362 | fi | |
1363 | ||
8bb915b6 NN |
1364 | # --------- |
1365 | # Threading | |
1366 | # --------- | |
1367 | ||
c2e494a8 | 1368 | # Check if a valid thread package |
615be2cf | 1369 | case ${enable_threads} in |
c2e494a8 NN |
1370 | "" | no) |
1371 | # No threads | |
1372 | target_thread_file='single' | |
1373 | ;; | |
1374 | yes) | |
1375 | # default | |
1376 | target_thread_file='single' | |
1377 | ;; | |
18167442 | 1378 | aix | dce | gnat | irix | posix | posix95 | rtems | \ |
769e49eb | 1379 | single | solaris | vxworks | win32 ) |
615be2cf | 1380 | target_thread_file=${enable_threads} |
c2e494a8 NN |
1381 | ;; |
1382 | *) | |
615be2cf | 1383 | echo "${enable_threads} is an unknown thread package" 1>&2 |
c2e494a8 NN |
1384 | exit 1 |
1385 | ;; | |
1386 | esac | |
1387 | ||
1388 | if test x${thread_file} = x; then | |
1389 | # No thread file set by target-specific clauses in config.gcc, | |
1390 | # so use file chosen by default logic above | |
1391 | thread_file=${target_thread_file} | |
46f18e7b | 1392 | fi |
46f18e7b | 1393 | |
8bb915b6 NN |
1394 | # Make gthr-default.h if we have a thread file. |
1395 | gthread_flags= | |
1396 | if test $thread_file != single; then | |
1397 | rm -f gthr-default.h | |
1398 | echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h | |
1399 | gthread_flags=-DHAVE_GTHR_DEFAULT | |
1400 | fi | |
1401 | AC_SUBST(gthread_flags) | |
1402 | ||
1403 | # -------- | |
1404 | # UNSORTED | |
1405 | # -------- | |
1406 | ||
18fbf599 | 1407 | use_cxa_atexit=no |
2121a768 JT |
1408 | if test x$enable___cxa_atexit = xyes || \ |
1409 | test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then | |
18fbf599 PB |
1410 | if test x$host = x$target; then |
1411 | AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes], | |
1412 | [echo "__cxa_atexit can't be enabled on this target"]) | |
1413 | else | |
1414 | # We can't check for __cxa_atexit when building a cross, so assume | |
1415 | # it is available | |
1416 | use_cxa_atexit=yes | |
1417 | fi | |
1418 | if test x$use_cxa_atexit = xyes; then | |
1419 | AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1, | |
1420 | [Define if you want to use __cxa_atexit, rather than atexit, to | |
1421 | register C++ destructors for local statics and global objects. | |
1422 | This is essential for fully standards-compliant handling of | |
1423 | destructors, but requires __cxa_atexit in libc.]) | |
1424 | fi | |
2121a768 JT |
1425 | fi |
1426 | ||
a5381466 | 1427 | # Look for a file containing extra machine modes. |
1c0ca89d ZW |
1428 | if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then |
1429 | extra_modes_file='$(srcdir)'/config/${extra_modes} | |
a5381466 | 1430 | AC_SUBST(extra_modes_file) |
e22340b0 | 1431 | AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes", |
a5381466 ZW |
1432 | [Define to the name of a file containing a list of extra machine modes |
1433 | for this architecture.]) | |
a5381466 ZW |
1434 | fi |
1435 | ||
75685792 RS |
1436 | # Convert extra_options into a form suitable for Makefile use. |
1437 | extra_opt_files= | |
1438 | for f in $extra_options; do | |
1439 | extra_opt_files="$extra_opt_files \$(srcdir)/config/$f" | |
1440 | done | |
1441 | AC_SUBST(extra_opt_files) | |
1442 | ||
b7cb92ad | 1443 | # auto-host.h is the file containing items generated by autoconf and is |
e9a25f70 | 1444 | # the first file included by config.h. |
4977bab6 | 1445 | # If host=build, it is correct to have bconfig include auto-host.h |
db81d74a RH |
1446 | # as well. If host!=build, we are in error and need to do more |
1447 | # work to find out the build config parameters. | |
75bffa71 | 1448 | if test x$host = x$build |
db81d74a | 1449 | then |
eaf4e618 | 1450 | build_auto=auto-host.h |
b7cb92ad JL |
1451 | else |
1452 | # We create a subdir, then run autoconf in the subdir. | |
1453 | # To prevent recursion we set host and build for the new | |
1454 | # invocation of configure to the build for this invocation | |
1455 | # of configure. | |
1456 | tempdir=build.$$ | |
1457 | rm -rf $tempdir | |
1458 | mkdir $tempdir | |
1459 | cd $tempdir | |
1460 | case ${srcdir} in | |
b86ecfa9 | 1461 | /* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};; |
b7cb92ad JL |
1462 | *) realsrcdir=../${srcdir};; |
1463 | esac | |
d920e825 L |
1464 | saved_CFLAGS="${CFLAGS}" |
1465 | CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \ | |
1466 | ${realsrcdir}/configure \ | |
33e70558 | 1467 | --enable-languages=${enable_languages-all} \ |
534d0cc0 | 1468 | --target=$target_alias --host=$build_alias --build=$build_alias |
d920e825 | 1469 | CFLAGS="${saved_CFLAGS}" |
b7cb92ad JL |
1470 | |
1471 | # We just finished tests for the build machine, so rename | |
1472 | # the file auto-build.h in the gcc directory. | |
1473 | mv auto-host.h ../auto-build.h | |
1474 | cd .. | |
1475 | rm -rf $tempdir | |
eaf4e618 | 1476 | build_auto=auto-build.h |
db81d74a | 1477 | fi |
71b5d516 | 1478 | AC_SUBST(build_subdir) |
db81d74a | 1479 | |
eaf4e618 | 1480 | tm_file="${tm_file} defaults.h" |
4977bab6 ZW |
1481 | tm_p_file="${tm_p_file} tm-preds.h" |
1482 | host_xm_file="auto-host.h ansidecl.h ${host_xm_file}" | |
1483 | build_xm_file="${build_auto} ansidecl.h ${build_xm_file}" | |
49691411 | 1484 | # We don't want ansidecl.h in target files, write code there in ISO/GNU C. |
b4862477 | 1485 | # put this back in temporarily. |
232b67d9 | 1486 | xm_file="auto-host.h ansidecl.h ${xm_file}" |
0056a9b5 | 1487 | |
34a86c2b NN |
1488 | # -------- |
1489 | # UNSORTED | |
1490 | # -------- | |
1491 | ||
afabd8e6 | 1492 | changequote(,)dnl |
cc1e60ea | 1493 | # Compile in configure arguments. |
8105825d | 1494 | if test -f configargs.h ; then |
cc1e60ea | 1495 | # Being re-configured. |
022dae81 | 1496 | gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'` |
cc1e60ea JM |
1497 | gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS" |
1498 | else | |
1499 | gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS" | |
1500 | fi | |
eeae7b41 DJ |
1501 | |
1502 | # Double all backslashes and backslash all quotes to turn | |
1503 | # gcc_config_arguments into a C string. | |
1504 | sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out | |
1505 | $gcc_config_arguments | |
1506 | EOF | |
1507 | gcc_config_arguments_str=`cat conftest.out` | |
1508 | rm -f conftest.out | |
1509 | ||
cc1e60ea JM |
1510 | cat > configargs.h <<EOF |
1511 | /* Generated automatically. */ | |
eeae7b41 | 1512 | static const char configuration_arguments[] = "$gcc_config_arguments_str"; |
a6687d2b | 1513 | static const char thread_model[] = "$thread_file"; |
7816bea0 DJ |
1514 | |
1515 | static const struct { | |
1516 | const char *name, *value; | |
1517 | } configure_default_options[] = $configure_default_options; | |
cc1e60ea | 1518 | EOF |
75bffa71 | 1519 | changequote([,])dnl |
46f18e7b | 1520 | |
ab87f8c8 | 1521 | # Internationalization |
56694dd9 | 1522 | ZW_GNU_GETTEXT_SISTER_DIR |
dc6746e7 | 1523 | |
56694dd9 ZW |
1524 | # If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get |
1525 | # -liconv on the link line twice. | |
1526 | case "$LIBINTL" in *$LIBICONV*) | |
1527 | LIBICONV= ;; | |
1528 | esac | |
ab87f8c8 | 1529 | |
7f970b70 AM |
1530 | AC_ARG_ENABLE(secureplt, |
1531 | [ --enable-secureplt enable -msecure-plt by default for PowerPC], | |
1532 | [], []) | |
1533 | ||
f4ab28e3 MK |
1534 | # Windows32 Registry support for specifying GCC installation paths. |
1535 | AC_ARG_ENABLE(win32-registry, | |
1536 | [ --disable-win32-registry | |
e8bec136 RO |
1537 | disable lookup of installation paths in the |
1538 | Registry on Windows hosts | |
1539 | --enable-win32-registry enable registry lookup (default) | |
f4ab28e3 | 1540 | --enable-win32-registry=KEY |
e8bec136 RO |
1541 | use KEY instead of GCC version as the last portion |
1542 | of the registry key],,) | |
a1286ef5 | 1543 | |
4e70264f | 1544 | case $host_os in |
a1286ef5 ZW |
1545 | win32 | pe | cygwin* | mingw32* | uwin*) |
1546 | if test "x$enable_win32_registry" != xno; then | |
1547 | AC_SEARCH_LIBS(RegOpenKeyExA, advapi32,, [enable_win32_registry=no]) | |
1548 | fi | |
f4ab28e3 | 1549 | |
a1286ef5 ZW |
1550 | if test "x$enable_win32_registry" != xno; then |
1551 | AC_DEFINE(ENABLE_WIN32_REGISTRY, 1, | |
1552 | [Define to 1 if installation paths should be looked up in the Windows | |
1553 | Registry. Ignored on non-Windows hosts.]) | |
1554 | ||
1555 | if test "x$enable_win32_registry" != xyes \ | |
1556 | && test "x$enable_win32_registry" != x; then | |
1557 | AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$enable_win32_registry", | |
1558 | [Define to be the last component of the Windows registry key under which | |
1559 | to look for installation paths. The full key used will be | |
1560 | HKEY_LOCAL_MACHINE/SOFTWARE/Free Software Foundation/{WIN32_REGISTRY_KEY}. | |
1561 | The default is the GCC version number.]) | |
1562 | fi | |
1563 | fi | |
f4ab28e3 MK |
1564 | ;; |
1565 | esac | |
1566 | ||
7fa10b25 | 1567 | # Get an absolute path to the GCC top-level source directory |
1e6347d8 | 1568 | holddir=`${PWDCMD-pwd}` |
7fa10b25 | 1569 | cd $srcdir |
1e6347d8 | 1570 | topdir=`${PWDCMD-pwd}` |
7fa10b25 RK |
1571 | cd $holddir |
1572 | ||
af5e4ada | 1573 | # Conditionalize the makefile for this host machine. |
2ed26f6b | 1574 | xmake_file= |
c406e779 | 1575 | for f in ${host_xmake_file} |
94f42018 | 1576 | do |
75bffa71 | 1577 | if test -f ${srcdir}/config/$f |
94f42018 | 1578 | then |
2ed26f6b | 1579 | xmake_file="${xmake_file} \$(srcdir)/config/$f" |
94f42018 DE |
1580 | fi |
1581 | done | |
46f18e7b | 1582 | |
af5e4ada | 1583 | # Conditionalize the makefile for this target machine. |
2ed26f6b | 1584 | tmake_file_= |
c406e779 | 1585 | for f in ${tmake_file} |
94f42018 | 1586 | do |
75bffa71 | 1587 | if test -f ${srcdir}/config/$f |
94f42018 | 1588 | then |
2ed26f6b | 1589 | tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
94f42018 DE |
1590 | fi |
1591 | done | |
2ed26f6b | 1592 | tmake_file="${tmake_file_}" |
5891b37d | 1593 | |
af5e4ada DE |
1594 | # If the host doesn't support symlinks, modify CC in |
1595 | # FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works. | |
1596 | # Otherwise, we can use "CC=$(CC)". | |
1597 | rm -f symtest.tem | |
35f06ae4 PB |
1598 | case "$LN_S" in |
1599 | *-s*) | |
1600 | cc_set_by_configure="\$(CC)" | |
1601 | quoted_cc_set_by_configure="\$(CC)" | |
1602 | stage_prefix_set_by_configure="\$(STAGE_PREFIX)" | |
1603 | quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)" | |
1604 | ;; | |
1605 | *) | |
1606 | cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`" | |
1607 | quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`" | |
1608 | stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`" | |
1609 | quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`" | |
1610 | ;; | |
1611 | esac | |
5891b37d | 1612 | |
5395b47b NN |
1613 | # This is a terrible hack which will go away some day. |
1614 | host_cc_for_libada=${CC} | |
1615 | AC_SUBST(host_cc_for_libada) | |
1e3fad21 | 1616 | |
af5e4ada | 1617 | out_object_file=`basename $out_file .c`.o |
5891b37d | 1618 | |
75685792 RS |
1619 | tm_file_list="options.h" |
1620 | tm_include_list="options.h" | |
af5e4ada | 1621 | for f in $tm_file; do |
64ccbc99 | 1622 | case $f in |
d02af173 | 1623 | defaults.h ) |
e22340b0 ZW |
1624 | tm_file_list="${tm_file_list} \$(srcdir)/$f" |
1625 | tm_include_list="${tm_include_list} $f" | |
1626 | ;; | |
1627 | * ) | |
1628 | tm_file_list="${tm_file_list} \$(srcdir)/config/$f" | |
1629 | tm_include_list="${tm_include_list} config/$f" | |
1630 | ;; | |
64ccbc99 | 1631 | esac |
af5e4ada | 1632 | done |
46f18e7b | 1633 | |
11642c3a | 1634 | tm_p_file_list= |
e22340b0 | 1635 | tm_p_include_list= |
11642c3a | 1636 | for f in $tm_p_file; do |
4977bab6 ZW |
1637 | case $f in |
1638 | tm-preds.h ) | |
e22340b0 ZW |
1639 | tm_p_file_list="${tm_p_file_list} $f" |
1640 | tm_p_include_list="${tm_p_include_list} $f" | |
1641 | ;; | |
1642 | * ) | |
1643 | tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f" | |
1644 | tm_p_include_list="${tm_p_include_list} config/$f" | |
1645 | esac | |
1646 | done | |
1647 | ||
1648 | xm_file_list= | |
1649 | xm_include_list= | |
1650 | for f in $xm_file; do | |
1651 | case $f in | |
1652 | ansidecl.h ) | |
1653 | xm_file_list="${xm_file_list} \$(srcdir)/../include/$f" | |
1654 | xm_include_list="${xm_include_list} $f" | |
1655 | ;; | |
1656 | auto-host.h ) | |
1657 | xm_file_list="${xm_file_list} $f" | |
1658 | xm_include_list="${xm_include_list} $f" | |
1659 | ;; | |
1660 | * ) | |
1661 | xm_file_list="${xm_file_list} \$(srcdir)/config/$f" | |
1662 | xm_include_list="${xm_include_list} config/$f" | |
1663 | ;; | |
4977bab6 | 1664 | esac |
11642c3a ZW |
1665 | done |
1666 | ||
af5e4ada | 1667 | host_xm_file_list= |
e22340b0 | 1668 | host_xm_include_list= |
af5e4ada | 1669 | for f in $host_xm_file; do |
64ccbc99 | 1670 | case $f in |
d02af173 | 1671 | ansidecl.h ) |
e22340b0 ZW |
1672 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f" |
1673 | host_xm_include_list="${host_xm_include_list} $f" | |
1674 | ;; | |
e2500fed | 1675 | auto-host.h ) |
e22340b0 ZW |
1676 | host_xm_file_list="${host_xm_file_list} $f" |
1677 | host_xm_include_list="${host_xm_include_list} $f" | |
1678 | ;; | |
1679 | * ) | |
1680 | host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f" | |
1681 | host_xm_include_list="${host_xm_include_list} config/$f" | |
1682 | ;; | |
64ccbc99 | 1683 | esac |
af5e4ada DE |
1684 | done |
1685 | ||
1686 | build_xm_file_list= | |
1687 | for f in $build_xm_file; do | |
64ccbc99 | 1688 | case $f in |
d02af173 | 1689 | ansidecl.h ) |
e22340b0 ZW |
1690 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f" |
1691 | build_xm_include_list="${build_xm_include_list} $f" | |
1692 | ;; | |
e2500fed | 1693 | auto-build.h | auto-host.h ) |
e22340b0 ZW |
1694 | build_xm_file_list="${build_xm_file_list} $f" |
1695 | build_xm_include_list="${build_xm_include_list} $f" | |
1696 | ;; | |
1697 | * ) | |
1698 | build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f" | |
1699 | build_xm_include_list="${build_xm_include_list} config/$f" | |
1700 | ;; | |
64ccbc99 | 1701 | esac |
af5e4ada | 1702 | done |
46f18e7b | 1703 | |
a078a589 ZW |
1704 | # Define macro CROSS_COMPILE in compilation if this is a cross-compiler. |
1705 | # Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR. | |
1706 | CROSS= AC_SUBST(CROSS) | |
1707 | ALL=all.internal AC_SUBST(ALL) | |
1708 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR) | |
b28250ab MM |
1709 | |
1710 | if test "x$with_build_sysroot" != x; then | |
1711 | build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)' | |
1712 | else | |
1713 | # This value is used, even on a native system, because | |
1714 | # CROSS_SYSTEM_HEADER_DIR is just | |
1715 | # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR). | |
1716 | build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)' | |
1717 | fi | |
1718 | ||
75bffa71 | 1719 | if test x$host != x$target |
af5e4ada | 1720 | then |
a078a589 ZW |
1721 | CROSS="-DCROSS_COMPILE" |
1722 | ALL=all.cross | |
160633c6 | 1723 | SYSTEM_HEADER_DIR=$build_system_header_dir |
343f59d9 | 1724 | case "$host","$target" in |
3a7e8b87 GK |
1725 | # Darwin crosses can use the host system's libraries and headers, |
1726 | # because of the fat library support. Of course, it must be the | |
1727 | # same version of Darwin on both sides. Allow the user to | |
1728 | # just say --target=foo-darwin without a version number to mean | |
1729 | # "the version on this system". | |
1730 | *-*-darwin*,*-*-darwin*) | |
1731 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
1732 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
1733 | if test $hostos = $targetos -o $targetos = darwin ; then | |
1734 | CROSS= | |
1735 | SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' | |
1736 | with_headers=yes | |
1737 | fi | |
1738 | ;; | |
1739 | ||
343f59d9 AM |
1740 | i?86-*-*,x86_64-*-* \ |
1741 | | powerpc*-*-*,powerpc64*-*-*) | |
1742 | CROSS="$CROSS -DNATIVE_CROSS" ;; | |
1743 | esac | |
7a615b25 | 1744 | elif test "x$TARGET_SYSTEM_ROOT" != x; then |
b28250ab | 1745 | SYSTEM_HEADER_DIR=$build_system_header_dir |
af5e4ada | 1746 | fi |
46f18e7b | 1747 | |
b39d221a EC |
1748 | # If this is a cross-compiler that does not |
1749 | # have its own set of headers then define | |
1750 | # inhibit_libc | |
1751 | ||
dc06db20 R |
1752 | # If this is using newlib, without having the headers available now, |
1753 | # then define inhibit_libc in LIBGCC2_CFLAGS. | |
fecd6201 ZW |
1754 | # This prevents libgcc2 from containing any code which requires libc |
1755 | # support. | |
160633c6 | 1756 | inhibit_libc=false |
dc06db20 R |
1757 | if { { test x$host != x$target && test "x$with_sysroot" = x ; } || |
1758 | test x$with_newlib = xyes ; } && | |
e50084fa | 1759 | { test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then |
160633c6 | 1760 | inhibit_libc=true |
b39d221a EC |
1761 | fi |
1762 | AC_SUBST(inhibit_libc) | |
1763 | ||
a078a589 ZW |
1764 | # When building gcc with a cross-compiler, we need to adjust things so |
1765 | # that the generator programs are still built with the native compiler. | |
1766 | # Also, we cannot run fixincludes or fix-header. | |
a078a589 ZW |
1767 | |
1768 | # These are the normal (build=host) settings: | |
eaf9f3b2 | 1769 | CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD) |
4977bab6 | 1770 | BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS) |
a078a589 | 1771 | STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC) |
587dc9c6 NN |
1772 | |
1773 | # Possibly disable fixproto, on a per-target basis. | |
1774 | case ${use_fixproto} in | |
1775 | no) | |
1776 | STMP_FIXPROTO= | |
1777 | ;; | |
1778 | yes) | |
1779 | STMP_FIXPROTO=stmp-fixproto | |
1780 | ;; | |
1781 | esac | |
1782 | AC_SUBST(STMP_FIXPROTO) | |
a078a589 | 1783 | |
83599948 NS |
1784 | # And these apply if build != host, or we are generating coverage data |
1785 | if test x$build != x$host || test "x$coverage_flags" != x | |
af5e4ada | 1786 | then |
b11e4747 | 1787 | BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' |
a078a589 | 1788 | |
7a615b25 | 1789 | if test "x$TARGET_SYSTEM_ROOT" = x; then |
d8e5117d | 1790 | if test "x$STMP_FIXPROTO" != x; then |
de253ca4 GK |
1791 | STMP_FIXPROTO=stmp-install-fixproto |
1792 | fi | |
7a615b25 | 1793 | fi |
af5e4ada | 1794 | fi |
46f18e7b | 1795 | |
ae3a15bb DE |
1796 | # Expand extra_headers to include complete path. |
1797 | # This substitutes for lots of t-* files. | |
1798 | extra_headers_list= | |
b1ef58c8 NN |
1799 | # Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers. |
1800 | for file in ${extra_headers} ; do | |
1801 | extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}" | |
1802 | done | |
ae3a15bb | 1803 | |
c38f02df ILT |
1804 | # Define collect2 in Makefile. |
1805 | case $host_can_use_collect2 in | |
1806 | no) collect2= ;; | |
1807 | *) collect2='collect2$(exeext)' ;; | |
1808 | esac | |
1809 | AC_SUBST([collect2]) | |
1810 | ||
af5e4ada | 1811 | # Add a definition of USE_COLLECT2 if system wants one. |
34a86c2b NN |
1812 | case $use_collect2 in |
1813 | no) use_collect2= ;; | |
1814 | "") ;; | |
1815 | *) | |
1816 | host_xm_defines="${host_xm_defines} USE_COLLECT2" | |
1817 | xm_defines="${xm_defines} USE_COLLECT2" | |
c38f02df ILT |
1818 | case $host_can_use_collect2 in |
1819 | no) | |
1820 | AC_MSG_ERROR([collect2 is required but cannot be built on this system]) | |
1821 | ;; | |
1822 | esac | |
34a86c2b NN |
1823 | ;; |
1824 | esac | |
af5e4ada | 1825 | |
630327c3 NN |
1826 | # --------------------------- |
1827 | # Assembler & linker features | |
1828 | # --------------------------- | |
1829 | ||
d869a8c4 NN |
1830 | # Identify the assembler which will work hand-in-glove with the newly |
1831 | # built GCC, so that we can examine its features. This is the assembler | |
1832 | # which will be driven by the driver program. | |
1833 | # | |
1834 | # If build != host, and we aren't building gas in-tree, we identify a | |
1835 | # build->target assembler and hope that it will have the same features | |
1836 | # as the host->target assembler we'll be using. | |
981d4858 JM |
1837 | gcc_cv_gas_major_version= |
1838 | gcc_cv_gas_minor_version= | |
a2f319ea | 1839 | gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas |
e8b05380 PB |
1840 | |
1841 | m4_pattern_allow([AS_FOR_TARGET])dnl | |
1842 | AS_VAR_SET_IF(gcc_cv_as,, [ | |
3ccc3a56 AO |
1843 | if test -x "$DEFAULT_ASSEMBLER"; then |
1844 | gcc_cv_as="$DEFAULT_ASSEMBLER" | |
34a86c2b | 1845 | elif test -f $gcc_cv_as_gas_srcdir/configure.in \ |
08d105fa AO |
1846 | && test -f ../gas/Makefile \ |
1847 | && test x$build = x$host; then | |
e8b05380 PB |
1848 | gcc_cv_as=../gas/as-new$build_exeext |
1849 | elif test -x as$build_exeext; then | |
1850 | # Build using assembler in the current directory. | |
1851 | gcc_cv_as=./as$build_exeext | |
1852 | elif test -x $AS_FOR_TARGET; then | |
1853 | gcc_cv_as="$AS_FOR_TARGET" | |
1854 | else | |
1855 | AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET) | |
1856 | fi]) | |
1857 | ||
1858 | ORIGINAL_AS_FOR_TARGET=$gcc_cv_as | |
1859 | AC_SUBST(ORIGINAL_AS_FOR_TARGET) | |
1860 | ||
1861 | AC_MSG_CHECKING(what assembler to use) | |
1862 | if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then | |
08d105fa AO |
1863 | # Single tree build which includes gas. We want to prefer it |
1864 | # over whatever linker top-level may have detected, since | |
1865 | # we'll use what we're building after installation anyway. | |
e8b05380 | 1866 | AC_MSG_RESULT(newly built gas) |
ad9c4d9f NN |
1867 | in_tree_gas=yes |
1868 | _gcc_COMPUTE_GAS_VERSION | |
5408ac6c HPN |
1869 | in_tree_gas_is_elf=no |
1870 | if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ | |
1871 | || (grep 'obj_format = multi' ../gas/Makefile \ | |
1872 | && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null | |
1873 | then | |
1874 | in_tree_gas_is_elf=yes | |
1875 | fi | |
e8b05380 PB |
1876 | else |
1877 | AC_MSG_RESULT($gcc_cv_as) | |
1878 | in_tree_gas=no | |
981d4858 JM |
1879 | fi |
1880 | ||
d869a8c4 NN |
1881 | # Identify the linker which will work hand-in-glove with the newly |
1882 | # built GCC, so that we can examine its features. This is the linker | |
1883 | # which will be driven by the driver program. | |
1884 | # | |
1885 | # If build != host, and we aren't building gas in-tree, we identify a | |
1886 | # build->target linker and hope that it will have the same features | |
1887 | # as the host->target linker we'll be using. | |
275b60d6 JJ |
1888 | gcc_cv_gld_major_version= |
1889 | gcc_cv_gld_minor_version= | |
1890 | gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld | |
1891 | gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
e8b05380 PB |
1892 | |
1893 | AS_VAR_SET_IF(gcc_cv_ld,, [ | |
275b60d6 JJ |
1894 | if test -x "$DEFAULT_LINKER"; then |
1895 | gcc_cv_ld="$DEFAULT_LINKER" | |
34a86c2b | 1896 | elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ |
08d105fa AO |
1897 | && test -f ../ld/Makefile \ |
1898 | && test x$build = x$host; then | |
e8b05380 PB |
1899 | gcc_cv_ld=../ld/ld-new$build_exeext |
1900 | elif test -x collect-ld$build_exeext; then | |
1901 | # Build using linker in the current directory. | |
1902 | gcc_cv_ld=./collect-ld$build_exeext | |
1903 | elif test -x $LD_FOR_TARGET; then | |
1904 | gcc_cv_ld="$LD_FOR_TARGET" | |
1905 | else | |
1906 | AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET) | |
1907 | fi]) | |
1908 | ||
1909 | ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld | |
1910 | AC_SUBST(ORIGINAL_LD_FOR_TARGET) | |
1911 | ||
1912 | AC_MSG_CHECKING(what linker to use) | |
1913 | if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then | |
08d105fa AO |
1914 | # Single tree build which includes ld. We want to prefer it |
1915 | # over whatever linker top-level may have detected, since | |
1916 | # we'll use what we're building after installation anyway. | |
e8b05380 | 1917 | AC_MSG_RESULT(newly built ld) |
34a86c2b | 1918 | in_tree_ld=yes |
5408ac6c HPN |
1919 | in_tree_ld_is_elf=no |
1920 | if (grep 'EMUL = .*elf' ../ld/Makefile \ | |
8a45d680 AN |
1921 | || grep 'EMUL = .*linux' ../ld/Makefile \ |
1922 | || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then | |
5408ac6c HPN |
1923 | in_tree_ld_is_elf=yes |
1924 | fi | |
275b60d6 JJ |
1925 | 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 |
1926 | do | |
1927 | changequote(,)dnl | |
58ea87a9 | 1928 | gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f` |
275b60d6 JJ |
1929 | if test x$gcc_cv_gld_version != x; then |
1930 | break | |
1931 | fi | |
1932 | done | |
275b60d6 JJ |
1933 | gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"` |
1934 | gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"` | |
1935 | changequote([,])dnl | |
e8b05380 PB |
1936 | else |
1937 | AC_MSG_RESULT($gcc_cv_ld) | |
1938 | in_tree_ld=no | |
275b60d6 JJ |
1939 | fi |
1940 | ||
981d4858 | 1941 | # Figure out what nm we will be using. |
f9c1196a | 1942 | gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils |
e8b05380 | 1943 | AS_VAR_SET_IF(gcc_cv_nm,, [ |
9f18db39 | 1944 | if test -f $gcc_cv_binutils_srcdir/configure.in \ |
f9c1196a | 1945 | && test -f ../binutils/Makefile; then |
9f18db39 PB |
1946 | gcc_cv_nm=../binutils/nm-new$build_exeext |
1947 | elif test -x nm$build_exeext; then | |
57991eba | 1948 | gcc_cv_nm=./nm$build_exeext |
e8b05380 PB |
1949 | elif test -x $NM_FOR_TARGET; then |
1950 | gcc_cv_nm="$NM_FOR_TARGET" | |
1951 | else | |
1952 | AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET) | |
1953 | fi]) | |
9f18db39 | 1954 | |
9f18db39 | 1955 | AC_MSG_CHECKING(what nm to use) |
e8b05380 PB |
1956 | if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then |
1957 | # Single tree build which includes binutils. | |
1958 | AC_MSG_RESULT(newly built nm) | |
1959 | in_tree_nm=yes | |
1960 | else | |
1961 | AC_MSG_RESULT($gcc_cv_nm) | |
1962 | in_tree_nm=no | |
1963 | fi | |
1964 | ||
1965 | ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm | |
1966 | AC_SUBST(ORIGINAL_NM_FOR_TARGET) | |
981d4858 | 1967 | |
3cae5780 | 1968 | # Figure out what objdump we will be using. |
e8b05380 | 1969 | AS_VAR_SET_IF(gcc_cv_objdump,, [ |
d739199a | 1970 | if test -f $gcc_cv_binutils_srcdir/configure.in \ |
f9c1196a ZW |
1971 | && test -f ../binutils/Makefile; then |
1972 | # Single tree build which includes binutils. | |
9f18db39 | 1973 | gcc_cv_objdump=../binutils/objdump$build_exeext |
d739199a DJ |
1974 | elif test -x objdump$build_exeext; then |
1975 | gcc_cv_objdump=./objdump$build_exeext | |
e8b05380 PB |
1976 | elif test -x $OBJDUMP_FOR_TARGET; then |
1977 | gcc_cv_objdump="$OBJDUMP_FOR_TARGET" | |
1978 | else | |
1979 | AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET) | |
1980 | fi]) | |
d739199a | 1981 | |
d739199a | 1982 | AC_MSG_CHECKING(what objdump to use) |
e8b05380 PB |
1983 | if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then |
1984 | # Single tree build which includes binutils. | |
1985 | AC_MSG_RESULT(newly built objdump) | |
1986 | elif test x$gcc_cv_objdump = x; then | |
1987 | AC_MSG_RESULT(not found) | |
1988 | else | |
1989 | AC_MSG_RESULT($gcc_cv_objdump) | |
1990 | fi | |
3cae5780 | 1991 | |
981d4858 | 1992 | # Figure out what assembler alignment features are present. |
8ada417f ZW |
1993 | gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align, |
1994 | [2,6,0],, | |
1995 | [.balign 4 | |
1996 | .p2align 2],, | |
1997 | [AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1, | |
1998 | [Define if your assembler supports .balign and .p2align.])]) | |
1999 | ||
2000 | gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align, | |
2001 | [2,8,0],, | |
2002 | [.p2align 4,,7],, | |
2003 | [AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1, | |
2004 | [Define if your assembler supports specifying the maximum number | |
2005 | of bytes to skip when using the GAS .p2align command.])]) | |
2006 | ||
2007 | gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1, | |
2008 | [elf,2,9,0],, | |
2009 | [conftest_label1: .word 0 | |
d1accaa3 JJ |
2010 | .subsection -1 |
2011 | conftest_label2: .word 0 | |
8ada417f ZW |
2012 | .previous], |
2013 | [if test x$gcc_cv_nm != x; then | |
2014 | $gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1 | |
2015 | $gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2 | |
2016 | if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1 | |
2017 | then : | |
2018 | else gcc_cv_as_subsection_m1=yes | |
2019 | fi | |
2020 | rm -f conftest.nm1 conftest.nm2 | |
2021 | fi], | |
2022 | [AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1, | |
2023 | [Define if your assembler supports .subsection and .subsection -1 starts | |
2024 | emitting at the beginning of your section.])]) | |
2025 | ||
2026 | gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak, | |
2027 | [2,2,0],, | |
2028 | [ .weak foobar],, | |
2029 | [AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])]) | |
2030 | ||
a0203ca7 AO |
2031 | gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref, |
2032 | [2,17,0],, | |
2033 | [ .weakref foobar, barfnot],, | |
2034 | [AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])]) | |
2035 | ||
e41f3691 JDA |
2036 | gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat, |
2037 | [2,15,91],, | |
2038 | [ .SPACE $TEXT$ | |
2039 | .NSUBSPA $CODE$,COMDAT],, | |
2040 | [AC_DEFINE(HAVE_GAS_NSUBSPA_COMDAT, 1, [Define if your assembler supports .nsubspa comdat option.])]) | |
2041 | ||
8ada417f ZW |
2042 | # .hidden needs to be supported in both the assembler and the linker, |
2043 | # because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN. | |
2044 | # This is irritatingly difficult to feature test for; we have to check the | |
2045 | # date string after the version number. If we've got an in-tree | |
2046 | # ld, we don't know its patchlevel version, so we set the baseline at 2.13 | |
2047 | # to be safe. | |
2048 | # The gcc_GAS_CHECK_FEATURE call just sets a cache variable. | |
2049 | gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden, | |
2050 | [elf,2,13,0],, | |
2051 | [ .hidden foobar | |
2052 | foobar:]) | |
2053 | ||
2054 | AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden, | |
2055 | [if test $in_tree_ld = yes ; then | |
2056 | gcc_cv_ld_hidden=no | |
2057 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
2058 | && test $in_tree_ld_is_elf = yes; then | |
2059 | gcc_cv_ld_hidden=yes | |
2060 | fi | |
2061 | else | |
2062 | gcc_cv_ld_hidden=yes | |
bace148a | 2063 | ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q` |
8ada417f | 2064 | if echo "$ld_ver" | grep GNU > /dev/null; then |
c72931a6 | 2065 | changequote(,)dnl |
8ada417f ZW |
2066 | ld_vers=`echo $ld_ver | sed -n \ |
2067 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2068 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2069 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \ | |
2070 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
2071 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ | |
11176d2a JB |
2072 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \ |
2073 | -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'` | |
8ada417f | 2074 | ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'` |
11176d2a JB |
2075 | ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'` |
2076 | ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'` | |
2077 | ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'` | |
8ada417f ZW |
2078 | if test 0"$ld_date" -lt 20020404; then |
2079 | if test -n "$ld_date"; then | |
2080 | # If there was date string, but was earlier than 2002-04-04, fail | |
2081 | gcc_cv_ld_hidden=no | |
2082 | elif test -z "$ld_vers"; then | |
2083 | # If there was no date string nor ld version number, something is wrong | |
2084 | gcc_cv_ld_hidden=no | |
2085 | else | |
8ada417f ZW |
2086 | test -z "$ld_vers_patch" && ld_vers_patch=0 |
2087 | if test "$ld_vers_major" -lt 2; then | |
2088 | gcc_cv_ld_hidden=no | |
2089 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then | |
2090 | gcc_cv_ld_hidden="no" | |
2091 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then | |
2092 | gcc_cv_ld_hidden=no | |
c72931a6 | 2093 | fi |
8ada417f ZW |
2094 | fi |
2095 | changequote([,])dnl | |
789b7de5 | 2096 | fi |
8ada417f | 2097 | else |
28690784 | 2098 | case "${target}" in |
b0fd7d27 | 2099 | hppa64*-*-hpux* | ia64*-*-hpux*) |
28690784 JDA |
2100 | gcc_cv_ld_hidden=yes |
2101 | ;; | |
2102 | *) | |
2103 | gcc_cv_ld_hidden=no | |
2104 | ;; | |
2105 | esac | |
8ada417f ZW |
2106 | fi |
2107 | fi]) | |
2108 | libgcc_visibility=no | |
9e944a16 | 2109 | AC_SUBST(libgcc_visibility) |
232b67d9 | 2110 | GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN]) |
0f31374d | 2111 | if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then |
8ada417f ZW |
2112 | libgcc_visibility=yes |
2113 | AC_DEFINE(HAVE_GAS_HIDDEN, 1, | |
2114 | [Define if your assembler and linker support .hidden.]) | |
2115 | fi | |
6a9c5260 | 2116 | |
8ada417f ZW |
2117 | # Check if we have .[us]leb128, and support symbol arithmetic with it. |
2118 | gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128, | |
2119 | [elf,2,11,0],, | |
2120 | [ .data | |
b7460f24 RH |
2121 | .uleb128 L2 - L1 |
2122 | L1: | |
2123 | .uleb128 1280 | |
2124 | .sleb128 -1010 | |
8ada417f ZW |
2125 | L2:], |
2126 | [# GAS versions before 2.11 do not support uleb128, | |
2127 | # despite appearing to. | |
2128 | # ??? There exists an elf-specific test that will crash | |
2129 | # the assembler. Perhaps it's better to figure out whether | |
2130 | # arbitrary sections are supported and try the test. | |
bace148a | 2131 | as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q` |
8ada417f | 2132 | if echo "$as_ver" | grep GNU > /dev/null; then |
78e766a0 | 2133 | changequote(,)dnl |
8ada417f ZW |
2134 | as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'` |
2135 | as_major=`echo $as_ver | sed 's/\..*//'` | |
2136 | as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'` | |
78e766a0 | 2137 | changequote([,])dnl |
8ada417f ZW |
2138 | if test $as_major -eq 2 && test $as_minor -lt 11 |
2139 | then : | |
2140 | else gcc_cv_as_leb128=yes | |
2141 | fi | |
2142 | fi], | |
2143 | [AC_DEFINE(HAVE_AS_LEB128, 1, | |
2144 | [Define if your assembler supports .sleb128 and .uleb128.])]) | |
2145 | ||
2146 | # GAS versions up to and including 2.11.0 may mis-optimize | |
2147 | # .eh_frame data. | |
2148 | gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, | |
2149 | [elf,2,12,0],, | |
2150 | [ .text | |
c64688ae RH |
2151 | .LFB1: |
2152 | .4byte 0 | |
2153 | .L1: | |
2154 | .4byte 0 | |
2155 | .LFE1: | |
2156 | .section .eh_frame,"aw",@progbits | |
2157 | __FRAME_BEGIN__: | |
2158 | .4byte .LECIE1-.LSCIE1 | |
2159 | .LSCIE1: | |
2160 | .4byte 0x0 | |
2161 | .byte 0x1 | |
2162 | .ascii "z\0" | |
2163 | .byte 0x1 | |
2164 | .byte 0x78 | |
2165 | .byte 0x1a | |
2166 | .byte 0x0 | |
2167 | .byte 0x4 | |
2168 | .4byte 1 | |
2169 | .p2align 1 | |
2170 | .LECIE1: | |
2171 | .LSFDE1: | |
2172 | .4byte .LEFDE1-.LASFDE1 | |
2173 | .LASFDE1: | |
2174 | .4byte .LASFDE1-__FRAME_BEGIN__ | |
2175 | .4byte .LFB1 | |
2176 | .4byte .LFE1-.LFB1 | |
2177 | .byte 0x4 | |
2178 | .4byte .LFE1-.LFB1 | |
2179 | .byte 0x4 | |
2180 | .4byte .L1-.LFB1 | |
8ada417f | 2181 | .LEFDE1:], |
ba479fd2 NN |
2182 | [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. |
2183 | cat > conftest.lit <<EOF | |
c64688ae RH |
2184 | 0000 10000000 00000000 017a0001 781a0004 .........z..x... |
2185 | 0010 01000000 12000000 18000000 00000000 ................ | |
ba479fd2 | 2186 | 0020 08000000 04080000 0044 .........D @&t@ |
01efb963 | 2187 | EOF |
ba479fd2 | 2188 | cat > conftest.big <<EOF |
01efb963 AS |
2189 | 0000 00000010 00000000 017a0001 781a0004 .........z..x... |
2190 | 0010 00000001 00000012 00000018 00000000 ................ | |
ba479fd2 | 2191 | 0020 00000008 04000000 0844 .........D @&t@ |
c64688ae | 2192 | EOF |
8ada417f ZW |
2193 | # If the assembler didn't choke, and we can objdump, |
2194 | # and we got the correct data, then succeed. | |
2195 | if test x$gcc_cv_objdump != x \ | |
2196 | && $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \ | |
2197 | | tail -3 > conftest.got \ | |
2198 | && { cmp conftest.lit conftest.got > /dev/null 2>&1 \ | |
2199 | || cmp conftest.big conftest.got > /dev/null 2>&1; } | |
2200 | then | |
2201 | gcc_cv_as_eh_frame=yes | |
2202 | elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then | |
2203 | gcc_cv_as_eh_frame=buggy | |
2204 | else | |
2205 | # Uh oh, what do we do now? | |
2206 | gcc_cv_as_eh_frame=no | |
2207 | fi]) | |
2208 | ||
2209 | if test $gcc_cv_as_eh_frame = buggy; then | |
2210 | AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1, | |
2211 | [Define if your assembler mis-optimizes .eh_frame data.]) | |
201556f0 | 2212 | fi |
201556f0 | 2213 | |
8ada417f ZW |
2214 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, |
2215 | [elf,2,12,0], [--fatal-warnings], | |
5d4856a0 | 2216 | [.section .rodata.str, "aMS", @progbits, 1]) |
c18a5b6c MM |
2217 | if test $gcc_cv_as_shf_merge = no; then |
2218 | gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge, | |
2219 | [elf,2,12,0], [--fatal-warnings], | |
2220 | [.section .rodata.str, "aMS", %progbits, 1]) | |
2221 | fi | |
5d4856a0 RO |
2222 | AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE, |
2223 | [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`], | |
2224 | [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.]) | |
8ada417f | 2225 | |
c18a5b6c | 2226 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group, |
11176d2a | 2227 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c MM |
2228 | [.section .text,"axG",@progbits,.foo,comdat]) |
2229 | if test $gcc_cv_as_comdat_group = yes; then | |
2230 | gcc_cv_as_comdat_group_percent=no | |
2231 | else | |
2232 | gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent, | |
11176d2a | 2233 | [elf,2,16,0], [--fatal-warnings], |
c18a5b6c MM |
2234 | [.section .text,"axG",%progbits,.foo,comdat]) |
2235 | fi | |
11176d2a JB |
2236 | if test $in_tree_ld != yes && test x"$ld_vers" != x; then |
2237 | comdat_group=yes | |
2238 | if test 0"$ld_date" -lt 20050308; then | |
2239 | if test -n "$ld_date"; then | |
2240 | # If there was date string, but was earlier than 2005-03-08, fail | |
2241 | comdat_group=no | |
2242 | elif test "$ld_vers_major" -lt 2; then | |
2243 | comdat_group=no | |
2244 | elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then | |
2245 | comdat_group=no | |
2246 | fi | |
2247 | fi | |
2248 | if test $comdat_group = no; then | |
2249 | gcc_cv_as_comdat_group=no | |
2250 | gcc_cv_as_comdat_group_percent=no | |
2251 | fi | |
2252 | fi | |
2253 | AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP, | |
c18a5b6c | 2254 | [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`], |
11176d2a | 2255 | [Define 0/1 if your assembler and linker support COMDAT groups.]) |
c18a5b6c | 2256 | |
8ada417f | 2257 | # Thread-local storage - the check is heavily parametrized. |
f996902d RH |
2258 | conftest_s= |
2259 | tls_first_major= | |
2260 | tls_first_minor= | |
9739c90c | 2261 | tls_as_opt= |
f996902d RH |
2262 | case "$target" in |
2263 | changequote(,)dnl | |
6f9b006d RH |
2264 | alpha*-*-*) |
2265 | conftest_s=' | |
2266 | .section ".tdata","awT",@progbits | |
2267 | foo: .long 25 | |
2268 | .text | |
2269 | ldq $27,__tls_get_addr($29) !literal!1 | |
2270 | lda $16,foo($29) !tlsgd!1 | |
2271 | jsr $26,($27),__tls_get_addr !lituse_tlsgd!1 | |
2272 | ldq $27,__tls_get_addr($29) !literal!2 | |
2273 | lda $16,foo($29) !tlsldm!2 | |
2274 | jsr $26,($27),__tls_get_addr !lituse_tlsldm!2 | |
2275 | ldq $1,foo($29) !gotdtprel | |
2276 | ldah $2,foo($29) !dtprelhi | |
2277 | lda $3,foo($2) !dtprello | |
2278 | lda $4,foo($29) !dtprel | |
2279 | ldq $1,foo($29) !gottprel | |
2280 | ldah $2,foo($29) !tprelhi | |
2281 | lda $3,foo($2) !tprello | |
2282 | lda $4,foo($29) !tprel' | |
2283 | tls_first_major=2 | |
2284 | tls_first_minor=13 | |
2f3321ca | 2285 | tls_as_opt=--fatal-warnings |
6f9b006d | 2286 | ;; |
e4dd71de AH |
2287 | frv*-*-*) |
2288 | conftest_s=' | |
2289 | .section ".tdata","awT",@progbits | |
2290 | x: .long 25 | |
2291 | .text | |
2292 | call #gettlsoff(x)' | |
2293 | tls_first_major=2 | |
2294 | tls_first_minor=14 | |
2295 | ;; | |
51076f96 RC |
2296 | hppa*-*-linux*) |
2297 | conftest_s=' | |
2298 | t1: .reg %r20 | |
2299 | t2: .reg %r21 | |
2300 | gp: .reg %r19 | |
2301 | .section ".tdata","awT",@progbits | |
2302 | foo: .long 25 | |
2303 | .text | |
2304 | .align 4 | |
2305 | addil LT%foo-$tls_gdidx$,gp | |
2306 | ldo RT%foo-$tls_gdidx$(%r1),%arg0 | |
2307 | b __tls_get_addr | |
2308 | nop | |
2309 | addil LT%foo-$tls_ldidx$,gp | |
2310 | b __tls_get_addr | |
2311 | ldo RT%foo-$tls_ldidx$(%r1),%arg0 | |
2312 | addil LR%foo-$tls_dtpoff$,%ret0 | |
2313 | ldo RR%foo-$tls_dtpoff$(%r1),%t1 | |
2314 | mfctl %cr27,%t1 | |
2315 | addil LT%foo-$tls_ieoff$,gp | |
2316 | ldw RT%foo-$tls_ieoff$(%r1),%t2 | |
2317 | add %t1,%t2,%t3 | |
2318 | mfctl %cr27,%t1 | |
2319 | addil LR%foo-$tls_leoff$,%t1 | |
2320 | ldo RR%foo-$tls_leoff$(%r1),%t2' | |
2321 | tls_first_major=2 | |
2322 | tls_first_minor=15 | |
2323 | tls_as_opt=--fatal-warnings | |
2324 | ;; | |
d3585b76 DJ |
2325 | arm*-*-*) |
2326 | conftest_s=' | |
2327 | .section ".tdata","awT",%progbits | |
2328 | foo: .long 25 | |
2329 | .text | |
2330 | .word foo(gottpoff) | |
2331 | .word foo(tpoff) | |
2332 | .word foo(tlsgd) | |
2333 | .word foo(tlsldm) | |
2334 | .word foo(tlsldo)' | |
2335 | tls_first_major=2 | |
2336 | tls_first_minor=17 | |
2337 | ;; | |
f996902d | 2338 | i[34567]86-*-*) |
f996902d RH |
2339 | conftest_s=' |
2340 | .section ".tdata","awT",@progbits | |
2341 | foo: .long 25 | |
2342 | .text | |
2343 | movl %gs:0, %eax | |
2344 | leal foo@TLSGD(,%ebx,1), %eax | |
2345 | leal foo@TLSLDM(%ebx), %eax | |
2346 | leal foo@DTPOFF(%eax), %edx | |
2347 | movl foo@GOTTPOFF(%ebx), %eax | |
2348 | subl foo@GOTTPOFF(%ebx), %eax | |
75d38379 JJ |
2349 | addl foo@GOTNTPOFF(%ebx), %eax |
2350 | movl foo@INDNTPOFF, %eax | |
f996902d RH |
2351 | movl $foo@TPOFF, %eax |
2352 | subl $foo@TPOFF, %eax | |
2353 | leal foo@NTPOFF(%ecx), %eax' | |
2354 | tls_first_major=2 | |
75d38379 | 2355 | tls_first_minor=14 |
2f3321ca | 2356 | tls_as_opt=--fatal-warnings |
75d38379 JJ |
2357 | ;; |
2358 | x86_64-*-*) | |
2359 | conftest_s=' | |
2360 | .section ".tdata","awT",@progbits | |
2361 | foo: .long 25 | |
2362 | .text | |
2363 | movq %fs:0, %rax | |
2364 | leaq foo@TLSGD(%rip), %rdi | |
2365 | leaq foo@TLSLD(%rip), %rdi | |
2366 | leaq foo@DTPOFF(%rax), %rdx | |
2367 | movq foo@GOTTPOFF(%rip), %rax | |
2368 | movq $foo@TPOFF, %rax' | |
2369 | tls_first_major=2 | |
2370 | tls_first_minor=14 | |
2f3321ca | 2371 | tls_as_opt=--fatal-warnings |
f996902d | 2372 | ;; |
7b6e506e RH |
2373 | ia64-*-*) |
2374 | conftest_s=' | |
2375 | .section ".tdata","awT",@progbits | |
2376 | foo: data8 25 | |
2377 | .text | |
2378 | addl r16 = @ltoff(@dtpmod(foo#)), gp | |
2379 | addl r17 = @ltoff(@dtprel(foo#)), gp | |
2380 | addl r18 = @ltoff(@tprel(foo#)), gp | |
2381 | addl r19 = @dtprel(foo#), gp | |
2382 | adds r21 = @dtprel(foo#), r13 | |
2383 | movl r23 = @dtprel(foo#) | |
2384 | addl r20 = @tprel(foo#), gp | |
2385 | adds r22 = @tprel(foo#), r13 | |
2386 | movl r24 = @tprel(foo#)' | |
2387 | tls_first_major=2 | |
2388 | tls_first_minor=13 | |
2f3321ca | 2389 | tls_as_opt=--fatal-warnings |
7b6e506e | 2390 | ;; |
69229b81 DJ |
2391 | mips*-*-*) |
2392 | conftest_s=' | |
2393 | .section .tdata,"awT",@progbits | |
2394 | x: | |
2395 | .word 2 | |
2396 | .text | |
2397 | addiu $4, $28, %tlsgd(x) | |
2398 | addiu $4, $28, %tlsldm(x) | |
2399 | lui $4, %dtprel_hi(x) | |
2400 | addiu $4, $4, %dtprel_lo(x) | |
2401 | lw $4, %gottprel(x)($28) | |
2402 | lui $4, %tprel_hi(x) | |
2403 | addiu $4, $4, %tprel_lo(x)' | |
2404 | tls_first_major=2 | |
2405 | tls_first_minor=16 | |
2406 | tls_as_opt='-32 --fatal-warnings' | |
2407 | ;; | |
c4501e62 JJ |
2408 | powerpc-*-*) |
2409 | conftest_s=' | |
2410 | .section ".tdata","awT",@progbits | |
2411 | .align 2 | |
2412 | ld0: .space 4 | |
2413 | ld1: .space 4 | |
2414 | x1: .space 4 | |
2415 | x2: .space 4 | |
2416 | x3: .space 4 | |
2417 | .text | |
2418 | addi 3,31,ld0@got@tlsgd | |
2419 | bl __tls_get_addr | |
2420 | addi 3,31,x1@got@tlsld | |
2421 | bl __tls_get_addr | |
2422 | addi 9,3,x1@dtprel | |
2423 | addis 9,3,x2@dtprel@ha | |
2424 | addi 9,9,x2@dtprel@l | |
2425 | lwz 9,x3@got@tprel(31) | |
2426 | add 9,9,x@tls | |
2427 | addi 9,2,x1@tprel | |
2428 | addis 9,2,x2@tprel@ha | |
2429 | addi 9,9,x2@tprel@l' | |
2430 | tls_first_major=2 | |
2431 | tls_first_minor=14 | |
2f3321ca | 2432 | tls_as_opt="-a32 --fatal-warnings" |
c4501e62 JJ |
2433 | ;; |
2434 | powerpc64-*-*) | |
2435 | conftest_s=' | |
2436 | .section ".tdata","awT",@progbits | |
2437 | .align 3 | |
2438 | ld0: .space 8 | |
2439 | ld1: .space 8 | |
2440 | x1: .space 8 | |
2441 | x2: .space 8 | |
2442 | x3: .space 8 | |
2443 | .text | |
2444 | addi 3,2,ld0@got@tlsgd | |
2445 | bl .__tls_get_addr | |
2446 | nop | |
2447 | addi 3,2,ld1@toc | |
2448 | bl .__tls_get_addr | |
2449 | nop | |
2450 | addi 3,2,x1@got@tlsld | |
2451 | bl .__tls_get_addr | |
2452 | nop | |
2453 | addi 9,3,x1@dtprel | |
2454 | bl .__tls_get_addr | |
2455 | nop | |
2456 | addis 9,3,x2@dtprel@ha | |
2457 | addi 9,9,x2@dtprel@l | |
2458 | bl .__tls_get_addr | |
2459 | nop | |
2460 | ld 9,x3@got@dtprel(2) | |
2461 | add 9,9,3 | |
2462 | bl .__tls_get_addr | |
2463 | nop' | |
2464 | tls_first_major=2 | |
2465 | tls_first_minor=14 | |
2f3321ca | 2466 | tls_as_opt="-a64 --fatal-warnings" |
c4501e62 | 2467 | ;; |
fd3cd001 UW |
2468 | s390-*-*) |
2469 | conftest_s=' | |
2470 | .section ".tdata","awT",@progbits | |
2471 | foo: .long 25 | |
2472 | .text | |
2473 | .long foo@TLSGD | |
2474 | .long foo@TLSLDM | |
2475 | .long foo@DTPOFF | |
2476 | .long foo@NTPOFF | |
2477 | .long foo@GOTNTPOFF | |
2478 | .long foo@INDNTPOFF | |
2479 | l %r1,foo@GOTNTPOFF(%r12) | |
2480 | l %r1,0(%r1):tls_load:foo | |
2481 | bas %r14,0(%r1,%r13):tls_gdcall:foo | |
2482 | bas %r14,0(%r1,%r13):tls_ldcall:foo' | |
2483 | tls_first_major=2 | |
2484 | tls_first_minor=14 | |
2f3321ca | 2485 | tls_as_opt="-m31 --fatal-warnings" |
fd3cd001 UW |
2486 | ;; |
2487 | s390x-*-*) | |
2488 | conftest_s=' | |
2489 | .section ".tdata","awT",@progbits | |
2490 | foo: .long 25 | |
2491 | .text | |
2492 | .quad foo@TLSGD | |
2493 | .quad foo@TLSLDM | |
2494 | .quad foo@DTPOFF | |
2495 | .quad foo@NTPOFF | |
2496 | .quad foo@GOTNTPOFF | |
2497 | lg %r1,foo@GOTNTPOFF(%r12) | |
2498 | larl %r1,foo@INDNTPOFF | |
2499 | brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo | |
2500 | brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo' | |
2501 | tls_first_major=2 | |
2502 | tls_first_minor=14 | |
2f3321ca | 2503 | tls_as_opt="-m64 -Aesame --fatal-warnings" |
fd3cd001 | 2504 | ;; |
9ff13962 KK |
2505 | sh-*-* | sh[34]-*-*) |
2506 | conftest_s=' | |
2507 | .section ".tdata","awT",@progbits | |
2508 | foo: .long 25 | |
2509 | .text | |
2510 | .long foo@TLSGD | |
2511 | .long foo@TLSLDM | |
2512 | .long foo@DTPOFF | |
2513 | .long foo@GOTTPOFF | |
2514 | .long foo@TPOFF' | |
2515 | tls_first_major=2 | |
2516 | tls_first_minor=13 | |
2f3321ca | 2517 | tls_as_opt=--fatal-warnings |
9ff13962 | 2518 | ;; |
5751a10b | 2519 | sparc*-*-*) |
2f3321ca EB |
2520 | case "$target" in |
2521 | sparc*-sun-solaris2.*) | |
2522 | on_solaris=yes | |
2523 | ;; | |
2524 | *) | |
2525 | on_solaris=no | |
2526 | ;; | |
2527 | esac | |
2528 | if test x$on_solaris = xyes && test x$gas_flag = xno; then | |
2529 | conftest_s=' | |
2530 | .section ".tdata",#alloc,#write,#tls | |
2531 | foo: .long 25 | |
2532 | .text | |
2533 | sethi %tgd_hi22(foo), %o0 | |
2534 | add %o0, %tgd_lo10(foo), %o1 | |
2535 | add %l7, %o1, %o0, %tgd_add(foo) | |
2536 | call __tls_get_addr, %tgd_call(foo) | |
2537 | sethi %tldm_hi22(foo), %l1 | |
2538 | add %l1, %tldm_lo10(foo), %l2 | |
2539 | add %l7, %l2, %o0, %tldm_add(foo) | |
2540 | call __tls_get_addr, %tldm_call(foo) | |
2541 | sethi %tldo_hix22(foo), %l3 | |
2542 | xor %l3, %tldo_lox10(foo), %l4 | |
2543 | add %o0, %l4, %l5, %tldo_add(foo) | |
2544 | sethi %tie_hi22(foo), %o3 | |
2545 | add %o3, %tie_lo10(foo), %o3 | |
2546 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2547 | add %g7, %o2, %o4, %tie_add(foo) | |
2548 | sethi %tle_hix22(foo), %l1 | |
2549 | xor %l1, %tle_lox10(foo), %o5 | |
2550 | ld [%g7 + %o5], %o1' | |
2551 | tls_first_major=0 | |
2552 | tls_first_minor=0 | |
2553 | else | |
2554 | conftest_s=' | |
5751a10b JJ |
2555 | .section ".tdata","awT",@progbits |
2556 | foo: .long 25 | |
2557 | .text | |
2558 | sethi %tgd_hi22(foo), %o0 | |
2559 | add %o0, %tgd_lo10(foo), %o1 | |
2560 | add %l7, %o1, %o0, %tgd_add(foo) | |
2561 | call __tls_get_addr, %tgd_call(foo) | |
2562 | sethi %tldm_hi22(foo), %l1 | |
2563 | add %l1, %tldm_lo10(foo), %l2 | |
2564 | add %l7, %l2, %o0, %tldm_add(foo) | |
2565 | call __tls_get_addr, %tldm_call(foo) | |
2566 | sethi %tldo_hix22(foo), %l3 | |
2567 | xor %l3, %tldo_lox10(foo), %l4 | |
2568 | add %o0, %l4, %l5, %tldo_add(foo) | |
2569 | sethi %tie_hi22(foo), %o3 | |
2570 | add %o3, %tie_lo10(foo), %o3 | |
2571 | ld [%l7 + %o3], %o2, %tie_ld(foo) | |
2572 | add %g7, %o2, %o4, %tie_add(foo) | |
2573 | sethi %tle_hix22(foo), %l1 | |
2574 | xor %l1, %tle_lox10(foo), %o5 | |
2575 | ld [%g7 + %o5], %o1' | |
2576 | tls_first_major=2 | |
2577 | tls_first_minor=14 | |
2f3321ca EB |
2578 | tls_as_opt="-32 --fatal-warnings" |
2579 | fi | |
5751a10b JJ |
2580 | ;; |
2581 | changequote([,])dnl | |
f996902d | 2582 | esac |
8dea1cca DD |
2583 | set_have_as_tls=no |
2584 | if test "x$enable_tls" = xno ; then | |
2585 | : # TLS explicitly disabled. | |
2586 | elif test "x$enable_tls" = xyes ; then | |
2587 | set_have_as_tls=yes # TLS explicitly enabled. | |
2588 | elif test -z "$tls_first_major"; then | |
8ada417f ZW |
2589 | : # If we don't have a check, assume no support. |
2590 | else | |
2591 | gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls, | |
2f3321ca | 2592 | [$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],, |
8dea1cca DD |
2593 | [set_have_as_tls=yes]) |
2594 | fi | |
2595 | if test $set_have_as_tls = yes ; then | |
2596 | AC_DEFINE(HAVE_AS_TLS, 1, | |
2597 | [Define if your assembler supports thread-local storage.]) | |
f996902d | 2598 | fi |
8ada417f ZW |
2599 | |
2600 | # Target-specific assembler checks. | |
f996902d | 2601 | |
7e9d8517 L |
2602 | AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option) |
2603 | gcc_cv_ld_static_dynamic=no | |
2604 | if test $in_tree_ld = yes ; then | |
2605 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10; then | |
2606 | gcc_cv_ld_static_dynamic=yes | |
2607 | fi | |
2608 | elif test x$gcc_cv_ld != x; then | |
2609 | # Check if linker supports -Bstatic/-Bdynamic option | |
2610 | if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \ | |
2611 | && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then | |
2612 | gcc_cv_ld_static_dynamic=yes | |
2613 | fi | |
2614 | fi | |
2615 | if test x"$gcc_cv_ld_static_dynamic" = xyes; then | |
2616 | AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1, | |
2617 | [Define if your linker supports -Bstatic/-Bdynamic option.]) | |
2618 | fi | |
2619 | AC_MSG_RESULT($gcc_cv_ld_static_dynamic) | |
2620 | ||
d594623a L |
2621 | if test x"$demangler_in_ld" = xyes; then |
2622 | AC_MSG_CHECKING(linker --demangle support) | |
2623 | gcc_cv_ld_demangle=no | |
2624 | if test $in_tree_ld = yes; then | |
2625 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ | |
2626 | gcc_cv_ld_demangle=yes | |
2627 | fi | |
2628 | elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then | |
2629 | # Check if the GNU linker supports --demangle option | |
2630 | if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then | |
2631 | gcc_cv_ld_demangle=yes | |
2632 | fi | |
2633 | fi | |
2634 | if test x"$gcc_cv_ld_demangle" = xyes; then | |
2635 | AC_DEFINE(HAVE_LD_DEMANGLE, 1, | |
2636 | [Define if your linker supports --demangle option.]) | |
2637 | fi | |
2638 | AC_MSG_RESULT($gcc_cv_ld_demangle) | |
2639 | fi | |
2640 | ||
275b60d6 | 2641 | case "$target" in |
3a37b08e RH |
2642 | # All TARGET_ABI_OSF targets. |
2643 | alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*) | |
8ada417f ZW |
2644 | gcc_GAS_CHECK_FEATURE([explicit relocation support], |
2645 | gcc_cv_as_alpha_explicit_relocs, [2,12,0],, | |
2646 | [ .set nomacro | |
3a37b08e RH |
2647 | .text |
2648 | extbl $3, $2, $3 !lituse_bytoff!1 | |
2649 | ldq $2, a($29) !literal!1 | |
2650 | ldq $4, b($29) !literal!2 | |
2651 | ldq_u $3, 0($2) !lituse_base!1 | |
2652 | ldq $27, f($29) !literal!5 | |
2653 | jsr $26, ($27), f !lituse_jsr!5 | |
2654 | ldah $29, 0($26) !gpdisp!3 | |
2655 | lda $0, c($29) !gprel | |
2656 | ldah $1, d($29) !gprelhigh | |
2657 | lda $1, d($1) !gprellow | |
8ada417f ZW |
2658 | lda $29, 0($29) !gpdisp!3],, |
2659 | [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1, | |
2660 | [Define if your assembler supports explicit relocations.])]) | |
d006f5eb RH |
2661 | gcc_GAS_CHECK_FEATURE([jsrdirect relocation support], |
2662 | gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],, | |
2663 | [ .set nomacro | |
2664 | .text | |
2665 | ldq $27, a($29) !literal!1 | |
2666 | jsr $26, ($27), a !lituse_jsrdirect!1],, | |
2667 | [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1, | |
2668 | [Define if your assembler supports the lituse_jsrdirect relocation.])]) | |
3a37b08e | 2669 | ;; |
e95b1e6a | 2670 | |
682a45fc HPN |
2671 | cris-*-*) |
2672 | gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option], | |
2673 | gcc_cv_as_cris_no_mul_bug,[2,15,91], | |
2674 | [-no-mul-bug-abort], [.text],, | |
2675 | [AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1, | |
2676 | [Define if your assembler supports the -no-mul-bug-abort option.])]) | |
2677 | ;; | |
2678 | ||
8ada417f ZW |
2679 | sparc*-*-*) |
2680 | gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,, | |
2681 | [.register %g2, #scratch],, | |
2682 | [AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, | |
2683 | [Define if your assembler supports .register.])]) | |
2684 | ||
2685 | gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,, | |
2686 | [-relax], [.text],, | |
2687 | [AC_DEFINE(HAVE_AS_RELAX_OPTION, 1, | |
2688 | [Define if your assembler supports -relax option.])]) | |
2689 | ||
2690 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs], | |
2691 | gcc_cv_as_sparc_ua_pcrel,, | |
2692 | [-K PIC], | |
2693 | [.text | |
2694 | foo: | |
2695 | nop | |
2696 | .data | |
2697 | .align 4 | |
2698 | .byte 0 | |
2699 | .uaword %r_disp32(foo)], | |
2700 | [if test x$gcc_cv_ld != x \ | |
2701 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then | |
2702 | gcc_cv_as_sparc_ua_pcrel=yes | |
2703 | fi | |
2704 | rm -f conftest], | |
2705 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, | |
17e9e88c | 2706 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
cf7b8b0d | 2707 | |
8ada417f ZW |
2708 | gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols], |
2709 | gcc_cv_as_sparc_ua_pcrel_hidden,, | |
2710 | [-K PIC], | |
2711 | [.data | |
2712 | .align 4 | |
2713 | .byte 0x31 | |
2714 | .uaword %r_disp32(foo) | |
2715 | .byte 0x32, 0x33, 0x34 | |
2716 | .global foo | |
2717 | .hidden foo | |
2718 | foo: | |
2719 | .skip 4], | |
2720 | [if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \ | |
2721 | && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \ | |
2722 | && $gcc_cv_objdump -s -j .data conftest 2> /dev/null \ | |
2723 | | grep ' 31000000 07323334' > /dev/null 2>&1; then | |
2724 | if $gcc_cv_objdump -R conftest 2> /dev/null \ | |
2725 | | grep 'DISP32' > /dev/null 2>&1; then | |
2726 | : | |
22252625 | 2727 | else |
8ada417f | 2728 | gcc_cv_as_sparc_ua_pcrel_hidden=yes |
5b68c389 | 2729 | fi |
8ada417f ZW |
2730 | fi |
2731 | rm -f conftest], | |
2732 | [AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1, | |
2733 | [Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])]) | |
2734 | ]) # unaligned pcrel relocs | |
2735 | ||
2736 | gcc_GAS_CHECK_FEATURE([offsetable %lo()], | |
2737 | gcc_cv_as_sparc_offsetable_lo10,, | |
2738 | [-xarch=v9], | |
2739 | [.text | |
2740 | or %g1, %lo(ab) + 12, %g1 | |
2741 | or %g1, %lo(ab + 12), %g1], | |
2742 | [if test x$gcc_cv_objdump != x \ | |
ecb0ccbc | 2743 | && $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \ |
8ada417f | 2744 | | grep ' 82106000 82106000' > /dev/null 2>&1; then |
1b5c0152 | 2745 | gcc_cv_as_sparc_offsetable_lo10=yes |
8ada417f ZW |
2746 | fi], |
2747 | [AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1, | |
2748 | [Define if your assembler supports offsetable %lo().])]) | |
1cb36a98 RH |
2749 | ;; |
2750 | ||
2751 | changequote(,)dnl | |
c307e6dd | 2752 | i[34567]86-*-* | x86_64-*-*) |
1cb36a98 | 2753 | changequote([,])dnl |
d38bc601 BF |
2754 | case $target_os in |
2755 | cygwin* | pe | mingw32*) | |
2756 | # Used for DWARF 2 in PE | |
2757 | gcc_GAS_CHECK_FEATURE([.secrel32 relocs], | |
2758 | gcc_cv_as_ix86_pe_secrel32, | |
2759 | [2,15,91],, | |
2760 | [.text | |
2761 | foo: nop | |
2762 | .data | |
2763 | .secrel32 foo], | |
2764 | [if test x$gcc_cv_ld != x \ | |
2765 | && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then | |
2766 | gcc_cv_as_ix86_pe_secrel32=yes | |
2767 | fi | |
2768 | rm -f conftest], | |
2769 | [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, | |
2770 | [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) | |
2771 | ;; | |
2772 | esac | |
2773 | ||
8ada417f ZW |
2774 | gcc_GAS_CHECK_FEATURE([filds and fists mnemonics], |
2775 | gcc_cv_as_ix86_filds_fists, | |
2776 | [2,9,0],, [filds mem; fists mem],, | |
2777 | [AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1, | |
2778 | [Define if your assembler uses the new HImode fild and fist notation.])]) | |
2779 | ||
f6f5dff2 RO |
2780 | gcc_GAS_CHECK_FEATURE([cmov syntax], |
2781 | gcc_cv_as_ix86_cmov_sun_syntax,,, | |
2782 | [cmovl.l %edx, %eax],, | |
2783 | [AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1, | |
2784 | [Define if your assembler supports the Sun syntax for cmov.])]) | |
2785 | ||
6f3ca281 ZW |
2786 | # This one is used unconditionally by i386.[ch]; it is to be defined |
2787 | # to 1 if the feature is present, 0 otherwise. | |
8ada417f ZW |
2788 | gcc_GAS_CHECK_FEATURE([GOTOFF in data], |
2789 | gcc_cv_as_ix86_gotoff_in_data, [2,11,0],, | |
2790 | [ .text | |
f88c65f7 RH |
2791 | .L0: |
2792 | nop | |
2793 | .data | |
6f3ca281 ZW |
2794 | .long .L0@GOTOFF]) |
2795 | AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA, | |
2796 | [`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`], | |
2797 | [Define true if the assembler supports '.long foo@GOTOFF'.]) | |
1cb36a98 | 2798 | ;; |
ef1ecf87 RH |
2799 | |
2800 | ia64*-*-*) | |
8ada417f ZW |
2801 | gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs], |
2802 | gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],, | |
cfa9ee99 | 2803 | [ .text |
ef1ecf87 RH |
2804 | addl r15 = @ltoffx(x#), gp |
2805 | ;; | |
cfa9ee99 | 2806 | ld8.mov r16 = [[r15]], x#],, |
8ada417f ZW |
2807 | [AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1, |
2808 | [Define if your assembler supports ltoffx and ldxmov relocations.])]) | |
2809 | ||
ef1ecf87 | 2810 | ;; |
8ada417f | 2811 | |
2c4a9cff | 2812 | powerpc*-*-*) |
8ada417f | 2813 | case $target in |
432218ba DE |
2814 | *-*-aix*) conftest_s=' .machine "pwr5" |
2815 | .csect .text[[PR]] | |
6b37db3c | 2816 | mfcr 3,128';; |
8af4d362 PB |
2817 | *-*-darwin*) |
2818 | gcc_GAS_CHECK_FEATURE([.machine directive support], | |
2819 | gcc_cv_as_machine_directive,,, | |
2820 | [ .machine ppc7400]) | |
2821 | if test x$gcc_cv_as_machine_directive != xyes; then | |
2822 | echo "*** This target requires an assembler supporting \".machine\"" >&2 | |
2823 | echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2 | |
2824 | test x$build = x$target && exit 1 | |
2825 | fi | |
2826 | conftest_s=' .text | |
6b37db3c | 2827 | mfcr r3,128';; |
4c67db14 | 2828 | *) conftest_s=' .machine power4 |
d2ab3e37 | 2829 | .text |
6b37db3c | 2830 | mfcr 3,128';; |
8ada417f | 2831 | esac |
8ada417f ZW |
2832 | |
2833 | gcc_GAS_CHECK_FEATURE([mfcr field support], | |
2834 | gcc_cv_as_powerpc_mfcrf, [2,14,0],, | |
2835 | [$conftest_s],, | |
2836 | [AC_DEFINE(HAVE_AS_MFCRF, 1, | |
2837 | [Define if your assembler supports mfcr field.])]) | |
432218ba DE |
2838 | |
2839 | case $target in | |
2840 | *-*-aix*) conftest_s=' .machine "pwr5" | |
2841 | .csect .text[[PR]] | |
2842 | popcntb 3,3';; | |
2843 | *) conftest_s=' .machine power5 | |
2844 | .text | |
2845 | popcntb 3,3';; | |
2846 | esac | |
2847 | ||
2848 | gcc_GAS_CHECK_FEATURE([popcntb support], | |
2849 | gcc_cv_as_powerpc_popcntb, [2,17,0],, | |
2850 | [$conftest_s],, | |
2851 | [AC_DEFINE(HAVE_AS_POPCNTB, 1, | |
2852 | [Define if your assembler supports popcntb field.])]) | |
2853 | ||
9719f3b7 DE |
2854 | case $target in |
2855 | *-*-aix*) conftest_s=' .machine "pwr5x" | |
2856 | .csect .text[[PR]] | |
2857 | frin 1,1';; | |
1e04bfdc | 2858 | *) conftest_s=' .machine power5 |
9719f3b7 DE |
2859 | .text |
2860 | frin 1,1';; | |
2861 | esac | |
2862 | ||
2863 | gcc_GAS_CHECK_FEATURE([fp round support], | |
2864 | gcc_cv_as_powerpc_fprnd, [2,17,0],, | |
2865 | [$conftest_s],, | |
2866 | [AC_DEFINE(HAVE_AS_FPRND, 1, | |
2867 | [Define if your assembler supports fprnd.])]) | |
2868 | ||
7f970b70 AM |
2869 | case $target in |
2870 | *-*-aix*) conftest_s=' .csect .text[[PR]] | |
2871 | LCF..0: | |
2872 | addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';; | |
2873 | *-*-darwin*) | |
2874 | conftest_s=' .text | |
2875 | LCF0: | |
2876 | addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';; | |
2877 | *) conftest_s=' .text | |
2878 | .LCF0: | |
2879 | addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';; | |
2880 | esac | |
2881 | ||
2882 | gcc_GAS_CHECK_FEATURE([rel16 relocs], | |
2883 | gcc_cv_as_powerpc_rel16, [2,17,0], -a32, | |
2884 | [$conftest_s],, | |
2885 | [AC_DEFINE(HAVE_AS_REL16, 1, | |
2886 | [Define if your assembler supports R_PPC_REL16 relocs.])]) | |
2c4a9cff | 2887 | ;; |
53b5ce19 | 2888 | |
8ada417f ZW |
2889 | mips*-*-*) |
2890 | gcc_GAS_CHECK_FEATURE([explicit relocation support], | |
2891 | gcc_cv_as_mips_explicit_relocs, [2,14,0],, | |
2892 | [ lw $4,%gp_rel(foo)($4)],, | |
2893 | [if test x$target_cpu_default = x | |
2894 | then target_cpu_default=MASK_EXPLICIT_RELOCS | |
2895 | else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS" | |
2896 | fi]) | |
dbad5e72 SE |
2897 | ;; |
2898 | esac | |
2899 | ||
2900 | # Mips and HP-UX need the GNU assembler. | |
2901 | # Linux on IA64 might be able to use the Intel assembler. | |
8ada417f | 2902 | |
dbad5e72 SE |
2903 | case "$target" in |
2904 | mips*-*-* | *-*-hpux* ) | |
82563d35 RS |
2905 | if test x$gas_flag = xyes \ |
2906 | || test x"$host" != x"$build" \ | |
2907 | || test ! -x "$gcc_cv_as" \ | |
2908 | || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then | |
2909 | : | |
2910 | else | |
2911 | echo "*** This configuration requires the GNU assembler" >&2 | |
2912 | exit 1 | |
2913 | fi | |
8ada417f ZW |
2914 | ;; |
2915 | esac | |
dbad5e72 | 2916 | |
9d147085 RH |
2917 | # ??? Not all targets support dwarf2 debug_line, even within a version |
2918 | # of gas. Moreover, we need to emit a valid instruction to trigger any | |
2919 | # info to the output file. So, as supported targets are added to gas 2.11, | |
2920 | # add some instruction here to (also) show we expect this might work. | |
2921 | # ??? Once 2.11 is released, probably need to add first known working | |
2922 | # version to the per-target configury. | |
2923 | case "$target" in | |
80486e06 | 2924 | i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \ |
2853bc5a | 2925 | | x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \ |
6afdc741 | 2926 | | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-*) |
9d147085 RH |
2927 | insn="nop" |
2928 | ;; | |
57116d8d | 2929 | ia64*-*-* | s390*-*-*) |
9d147085 RH |
2930 | insn="nop 0" |
2931 | ;; | |
2853bc5a HPN |
2932 | mmix-*-*) |
2933 | insn="swym 0" | |
2934 | ;; | |
8ada417f ZW |
2935 | esac |
2936 | if test x"$insn" != x; then | |
2937 | conftest_s="\ | |
2938 | .file 1 \"conftest.s\" | |
2939 | .loc 1 3 0 | |
2940 | $insn" | |
2941 | gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support], | |
2942 | gcc_cv_as_dwarf2_debug_line, | |
2943 | [elf,2,11,0],, [$conftest_s], | |
080a5bb0 EB |
2944 | [if test x$gcc_cv_objdump != x \ |
2945 | && $gcc_cv_objdump -h conftest.o 2> /dev/null \ | |
2946 | | grep debug_line > /dev/null 2>&1; then | |
8ada417f ZW |
2947 | gcc_cv_as_dwarf2_debug_line=yes |
2948 | fi]) | |
2949 | ||
2950 | # The .debug_line file table must be in the exact order that | |
2951 | # we specified the files, since these indices are also used | |
2952 | # by DW_AT_decl_file. Approximate this test by testing if | |
2953 | # the assembler bitches if the same index is assigned twice. | |
2954 | gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive], | |
2955 | gcc_cv_as_dwarf2_file_buggy,,, | |
2956 | [ .file 1 "foo.s" | |
2957 | .file 1 "bar.s"]) | |
2958 | ||
2959 | if test $gcc_cv_as_dwarf2_debug_line = yes \ | |
2960 | && test $gcc_cv_as_dwarf2_file_buggy = no; then | |
9d147085 | 2961 | AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1, |
8ada417f | 2962 | [Define if your assembler supports dwarf2 .file/.loc directives, |
eaec9b3d | 2963 | and preserves file table indices exactly as given.]) |
8ada417f ZW |
2964 | fi |
2965 | ||
2966 | gcc_GAS_CHECK_FEATURE([--gdwarf2 option], | |
2967 | gcc_cv_as_gdwarf2_flag, | |
2968 | [elf,2,11,0], [--gdwarf2], [$insn],, | |
2969 | [AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1, | |
2970 | [Define if your assembler supports the --gdwarf2 option.])]) | |
2971 | ||
2972 | gcc_GAS_CHECK_FEATURE([--gstabs option], | |
2973 | gcc_cv_as_gstabs_flag, | |
2974 | [elf,2,11,0], [--gstabs], [$insn], | |
2975 | [# The native Solaris 9/Intel assembler doesn't understand --gstabs | |
2976 | # and warns about it, but still exits successfully. So check for | |
2977 | # this. | |
2978 | if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null]) | |
2979 | then : | |
2980 | else gcc_cv_as_gstabs_flag=yes | |
2981 | fi], | |
2982 | [AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1, | |
2983 | [Define if your assembler supports the --gstabs option.])]) | |
9d147085 | 2984 | fi |
5f0e9ea2 | 2985 | |
96d0f4dc JJ |
2986 | AC_MSG_CHECKING(linker read-only and read-write section mixing) |
2987 | gcc_cv_ld_ro_rw_mix=unknown | |
34a86c2b | 2988 | if test $in_tree_ld = yes ; then |
5408ac6c HPN |
2989 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2 \ |
2990 | && test $in_tree_ld_is_elf = yes; then | |
96d0f4dc JJ |
2991 | gcc_cv_ld_ro_rw_mix=read-write |
2992 | fi | |
2993 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then | |
90e145da KC |
2994 | echo '.section myfoosect, "a"' > conftest1.s |
2995 | echo '.section myfoosect, "aw"' > conftest2.s | |
96d0f4dc | 2996 | echo '.byte 1' >> conftest2.s |
90e145da | 2997 | echo '.section myfoosect, "a"' > conftest3.s |
96d0f4dc | 2998 | echo '.byte 0' >> conftest3.s |
6cd656d0 KC |
2999 | if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \ |
3000 | && $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3001 | && $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \ | |
96d0f4dc | 3002 | && $gcc_cv_ld -shared -o conftest1.so conftest1.o \ |
c6cc7e13 | 3003 | conftest2.o conftest3.o > /dev/null 2>&1; then |
96d0f4dc | 3004 | gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \ |
c6cc7e13 | 3005 | | sed -e '/myfoosect/!d' -e N` |
96d0f4dc JJ |
3006 | if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then |
3007 | if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then | |
3008 | gcc_cv_ld_ro_rw_mix=read-only | |
3009 | else | |
3010 | gcc_cv_ld_ro_rw_mix=read-write | |
3011 | fi | |
3012 | fi | |
3013 | fi | |
3014 | changequote(,)dnl | |
3015 | rm -f conftest.* conftest[123].* | |
3016 | changequote([,])dnl | |
3017 | fi | |
3018 | if test x$gcc_cv_ld_ro_rw_mix = xread-write; then | |
3019 | AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1, | |
3020 | [Define if your linker links a mix of read-only | |
3021 | and read-write sections into a read-write section.]) | |
3022 | fi | |
3023 | AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix) | |
3024 | ||
275b60d6 JJ |
3025 | AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support) |
3026 | gcc_cv_ld_eh_frame_hdr=no | |
34a86c2b | 3027 | if test $in_tree_ld = yes ; then |
5408ac6c HPN |
3028 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \ |
3029 | && test $in_tree_ld_is_elf = yes; then | |
275b60d6 JJ |
3030 | gcc_cv_ld_eh_frame_hdr=yes |
3031 | fi | |
3032 | elif test x$gcc_cv_ld != x; then | |
3033 | # Check if linker supports --eh-frame-hdr option | |
3034 | if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then | |
3035 | gcc_cv_ld_eh_frame_hdr=yes | |
3036 | fi | |
3037 | fi | |
232b67d9 | 3038 | GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR]) |
275b60d6 JJ |
3039 | if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then |
3040 | AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1, | |
3041 | [Define if your linker supports --eh-frame-hdr option.]) | |
3042 | fi | |
3043 | AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr) | |
3044 | ||
24a4dd31 JJ |
3045 | AC_MSG_CHECKING(linker position independent executable support) |
3046 | gcc_cv_ld_pie=no | |
3047 | if test $in_tree_ld = yes ; then | |
5408ac6c HPN |
3048 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \ |
3049 | && test $in_tree_ld_is_elf = yes; then | |
24a4dd31 JJ |
3050 | gcc_cv_ld_pie=yes |
3051 | fi | |
3052 | elif test x$gcc_cv_ld != x; then | |
3053 | # Check if linker supports -pie option | |
3054 | if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then | |
3055 | gcc_cv_ld_pie=yes | |
3056 | fi | |
3057 | fi | |
3058 | if test x"$gcc_cv_ld_pie" = xyes; then | |
3059 | AC_DEFINE(HAVE_LD_PIE, 1, | |
3060 | [Define if your linker supports -pie option.]) | |
3061 | fi | |
3062 | AC_MSG_RESULT($gcc_cv_ld_pie) | |
3063 | ||
630327c3 NN |
3064 | # -------- |
3065 | # UNSORTED | |
3066 | # -------- | |
3067 | ||
82e923f6 RS |
3068 | AC_CACHE_CHECK(linker --as-needed support, |
3069 | gcc_cv_ld_as_needed, | |
3070 | [gcc_cv_ld_as_needed=no | |
765f1bf9 AM |
3071 | if test $in_tree_ld = yes ; then |
3072 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \ | |
3073 | && test $in_tree_ld_is_elf = yes; then | |
3074 | gcc_cv_ld_as_needed=yes | |
3075 | fi | |
3076 | elif test x$gcc_cv_ld != x; then | |
3077 | # Check if linker supports --as-needed and --no-as-needed options | |
3078 | if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then | |
3079 | gcc_cv_ld_as_needed=yes | |
3080 | fi | |
3081 | fi | |
82e923f6 | 3082 | ]) |
765f1bf9 AM |
3083 | if test x"$gcc_cv_ld_as_needed" = xyes; then |
3084 | AC_DEFINE(HAVE_LD_AS_NEEDED, 1, | |
3085 | [Define if your linker supports --as-needed and --no-as-needed options.]) | |
3086 | fi | |
765f1bf9 | 3087 | |
d82bf747 AM |
3088 | case "$target:$tm_file" in |
3089 | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*) | |
85b776df AM |
3090 | AC_CACHE_CHECK(linker support for omitting dot symbols, |
3091 | gcc_cv_ld_no_dot_syms, | |
3092 | [gcc_cv_ld_no_dot_syms=no | |
3093 | if test $in_tree_ld = yes ; then | |
3094 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then | |
3095 | gcc_cv_ld_no_dot_syms=yes | |
3096 | fi | |
3097 | elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then | |
3098 | cat > conftest1.s <<EOF | |
3099 | .text | |
3100 | bl .foo | |
3101 | EOF | |
3102 | cat > conftest2.s <<EOF | |
3103 | .section ".opd","aw" | |
3104 | .align 3 | |
3105 | .globl foo | |
3106 | .type foo,@function | |
3107 | foo: | |
3108 | .quad .LEfoo,.TOC.@tocbase,0 | |
3109 | .text | |
3110 | .LEfoo: | |
3111 | blr | |
3112 | .size foo,.-.LEfoo | |
3113 | EOF | |
3114 | if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \ | |
3115 | && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ | |
3116 | && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then | |
3117 | gcc_cv_ld_no_dot_syms=yes | |
3118 | fi | |
3119 | rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s | |
3120 | fi | |
3121 | ]) | |
3122 | if test x"$gcc_cv_ld_no_dot_syms" = xyes; then | |
3123 | AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, | |
3124 | [Define if your PowerPC64 linker only needs function descriptor syms.]) | |
3125 | fi | |
3126 | ;; | |
3127 | esac | |
3128 | ||
380e5ca4 MM |
3129 | AC_CACHE_CHECK(linker --sysroot support, |
3130 | gcc_cv_ld_sysroot, | |
3131 | [gcc_cv_ld_sysroot=no | |
3132 | if test $in_tree_ld = yes ; then | |
3133 | if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then | |
7032df40 | 3134 | gcc_cv_ld_sysroot=yes |
380e5ca4 MM |
3135 | fi |
3136 | elif test x$gcc_cv_ld != x; then | |
3137 | if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then | |
3138 | gcc_cv_ld_sysroot=yes | |
3139 | fi | |
3140 | fi]) | |
3141 | if test x"$gcc_cv_ld_sysroot" = xyes; then | |
3142 | AC_DEFINE(HAVE_LD_SYSROOT, 1, | |
3143 | [Define if your linker supports --sysroot.]) | |
3144 | fi | |
3145 | ||
9fb28a67 | 3146 | if test x$with_sysroot = x && test x$host = x$target \ |
047d636f | 3147 | && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then |
8ada417f ZW |
3148 | AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", |
3149 | [Define to PREFIX/include if cpp should also search that directory.]) | |
793e9558 PB |
3150 | fi |
3151 | ||
77008252 JJ |
3152 | # Test for stack protector support in target C library. |
3153 | case "$target" in | |
3154 | *-*-linux*) | |
3155 | AC_CACHE_CHECK(__stack_chk_fail in target GNU C library, | |
3156 | gcc_cv_libc_provides_ssp, | |
3157 | [gcc_cv_libc_provides_ssp=no | |
3158 | if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then | |
3159 | if test "x$with_sysroot" = x; then | |
3160 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" | |
3161 | elif test "x$with_sysroot" = xyes; then | |
3162 | glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" | |
3163 | else | |
3164 | glibc_header_dir="${with_sysroot}/usr/include" | |
3165 | fi | |
3166 | else | |
3167 | glibc_header_dir=/usr/include | |
3168 | fi | |
3169 | # glibc 2.4 and later provides __stack_chk_fail and | |
3170 | # either __stack_chk_guard, or TLS access to stack guard canary. | |
3171 | if test -f $glibc_header_dir/features.h \ | |
3172 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \ | |
3173 | $glibc_header_dir/features.h > /dev/null; then | |
3174 | if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \ | |
3175 | $glibc_header_dir/features.h > /dev/null; then | |
3176 | gcc_cv_libc_provides_ssp=yes | |
3177 | elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \ | |
3178 | $glibc_header_dir/features.h > /dev/null \ | |
3179 | && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \ | |
3180 | $glibc_header_dir/features.h > /dev/null; then | |
3181 | gcc_cv_libc_provides_ssp=yes | |
3182 | fi | |
3183 | fi]) ;; | |
3184 | *) gcc_cv_libc_provides_ssp=no ;; | |
3185 | esac | |
3186 | if test x$gcc_cv_libc_provides_ssp = xyes; then | |
3187 | AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1, | |
3188 | [Define if your target C library provides stack protector support]) | |
3189 | fi | |
3190 | ||
81bf3d9e RH |
3191 | # Find out what GC implementation we want, or may, use. |
3192 | AC_ARG_WITH(gc, | |
59415997 | 3193 | [ --with-gc={page,zone} choose the garbage collection mechanism to use |
e8bec136 | 3194 | with the compiler], |
81bf3d9e | 3195 | [case "$withval" in |
08cee789 | 3196 | page) |
81bf3d9e RH |
3197 | GGC=ggc-$withval |
3198 | ;; | |
08cee789 DJ |
3199 | zone) |
3200 | GGC=ggc-$withval | |
3201 | AC_DEFINE(GGC_ZONE, 1, [Define if the zone collector is in use]) | |
3202 | ;; | |
81bf3d9e RH |
3203 | *) |
3204 | AC_MSG_ERROR([$withval is an invalid option to --with-gc]) | |
3205 | ;; | |
3206 | esac], | |
130fadbb | 3207 | [GGC=ggc-page]) |
81bf3d9e RH |
3208 | AC_SUBST(GGC) |
3209 | echo "Using $GGC for garbage collection." | |
3210 | ||
3c809ba4 | 3211 | # Use the system's zlib library. |
b8dad04b ZW |
3212 | zlibdir=-L../zlib |
3213 | zlibinc="-I\$(srcdir)/../zlib" | |
3c809ba4 AG |
3214 | AC_ARG_WITH(system-zlib, |
3215 | [ --with-system-zlib use installed libz], | |
3216 | zlibdir= | |
3217 | zlibinc= | |
3218 | ) | |
3219 | AC_SUBST(zlibdir) | |
3220 | AC_SUBST(zlibinc) | |
3221 | ||
dc6746e7 PT |
3222 | dnl Very limited version of automake's enable-maintainer-mode |
3223 | ||
3224 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
3225 | dnl maintainer-mode is disabled by default | |
3226 | AC_ARG_ENABLE(maintainer-mode, | |
e8bec136 RO |
3227 | [ --enable-maintainer-mode |
3228 | enable make rules and dependencies not useful | |
dc6746e7 PT |
3229 | (and sometimes confusing) to the casual installer], |
3230 | maintainer_mode=$enableval, | |
3231 | maintainer_mode=no) | |
3232 | ||
3233 | AC_MSG_RESULT($maintainer_mode) | |
3234 | ||
3235 | if test "$maintainer_mode" = "yes"; then | |
3236 | MAINT='' | |
3237 | else | |
3238 | MAINT='#' | |
3239 | fi | |
3240 | AC_SUBST(MAINT)dnl | |
3241 | ||
630327c3 NN |
3242 | # -------------- |
3243 | # Language hooks | |
3244 | # -------------- | |
3245 | ||
571a8de5 DE |
3246 | # Make empty files to contain the specs and options for each language. |
3247 | # Then add #include lines to for a compiler that has specs and/or options. | |
3248 | ||
d7b42618 | 3249 | lang_opt_files= |
571a8de5 | 3250 | lang_specs_files= |
3103b7db | 3251 | lang_tree_files= |
571a8de5 DE |
3252 | for subdir in . $subdirs |
3253 | do | |
d7b42618 NB |
3254 | if test -f $srcdir/$subdir/lang.opt; then |
3255 | lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt" | |
3256 | fi | |
75bffa71 | 3257 | if test -f $srcdir/$subdir/lang-specs.h; then |
0d24f4d1 | 3258 | lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h" |
571a8de5 | 3259 | fi |
3103b7db | 3260 | if test -f $srcdir/$subdir/$subdir-tree.def; then |
0d24f4d1 | 3261 | lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def" |
3103b7db | 3262 | fi |
571a8de5 DE |
3263 | done |
3264 | ||
3265 | # These (without "all_") are set in each config-lang.in. | |
3266 | # `language' must be a single word so is spelled singularly. | |
3267 | all_languages= | |
3268 | all_boot_languages= | |
3269 | all_compilers= | |
3270 | all_stagestuff= | |
53c7ffe7 | 3271 | all_outputs='Makefile gccbug mklibgcc libada-mk' |
571a8de5 | 3272 | # List of language makefile fragments. |
2ed26f6b ZW |
3273 | all_lang_makefrags= |
3274 | # List of language subdirectory makefiles. Deprecated. | |
571a8de5 | 3275 | all_lang_makefiles= |
e2500fed | 3276 | # Files for gengtype |
ef69da62 | 3277 | all_gtfiles="$target_gtfiles" |
8ac9d31f TJ |
3278 | # Files for gengtype with language |
3279 | all_gtfiles_files_langs= | |
3280 | all_gtfiles_files_files= | |
571a8de5 DE |
3281 | |
3282 | # Add the language fragments. | |
3283 | # Languages are added via two mechanisms. Some information must be | |
3284 | # recorded in makefile variables, these are defined in config-lang.in. | |
3285 | # We accumulate them and plug them into the main Makefile. | |
3286 | # The other mechanism is a set of hooks for each of the main targets | |
3287 | # like `clean', `install', etc. | |
3288 | ||
571a8de5 DE |
3289 | language_hooks="Make-hooks" |
3290 | ||
c406e779 | 3291 | for s in $subdirs |
571a8de5 | 3292 | do |
571a8de5 DE |
3293 | language= |
3294 | boot_language= | |
3295 | compilers= | |
3296 | stagestuff= | |
0280cf84 | 3297 | outputs= |
e2500fed | 3298 | gtfiles= |
571a8de5 | 3299 | . ${srcdir}/$s/config-lang.in |
75bffa71 | 3300 | if test "x$language" = x |
571a8de5 DE |
3301 | then |
3302 | echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2 | |
3303 | exit 1 | |
3304 | fi | |
2ed26f6b | 3305 | all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in" |
72aaffbd | 3306 | if test -f ${srcdir}/$s/Makefile.in |
2ed26f6b | 3307 | then all_lang_makefiles="$s/Makefile" |
72aaffbd | 3308 | fi |
571a8de5 | 3309 | all_languages="$all_languages $language" |
75bffa71 | 3310 | if test "x$boot_language" = xyes |
571a8de5 DE |
3311 | then |
3312 | all_boot_languages="$all_boot_languages $language" | |
3313 | fi | |
3314 | all_compilers="$all_compilers $compilers" | |
3315 | all_stagestuff="$all_stagestuff $stagestuff" | |
0280cf84 | 3316 | all_outputs="$all_outputs $outputs" |
e2500fed | 3317 | all_gtfiles="$all_gtfiles $gtfiles" |
c406e779 | 3318 | for f in $gtfiles |
8ac9d31f | 3319 | do |
8ac9d31f TJ |
3320 | all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " |
3321 | all_gtfiles_files_files="$all_gtfiles_files_files ${f} " | |
8ac9d31f | 3322 | done |
571a8de5 DE |
3323 | done |
3324 | ||
8ac9d31f TJ |
3325 | # Pick up gtfiles for c |
3326 | gtfiles= | |
3327 | s="c" | |
3328 | . ${srcdir}/c-config-lang.in | |
3329 | all_gtfiles="$all_gtfiles $gtfiles" | |
c406e779 | 3330 | for f in $gtfiles |
8ac9d31f | 3331 | do |
8ac9d31f TJ |
3332 | all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} " |
3333 | all_gtfiles_files_files="$all_gtfiles_files_files ${f} " | |
8ac9d31f TJ |
3334 | done |
3335 | ||
cbc59f01 | 3336 | check_languages= |
c406e779 | 3337 | for language in $all_languages |
cbc59f01 | 3338 | do |
cbc59f01 | 3339 | check_languages="$check_languages check-$language" |
cbc59f01 DD |
3340 | done |
3341 | ||
62b81e45 MM |
3342 | # We link each language in with a set of hooks, reached indirectly via |
3343 | # lang.${target}. | |
571a8de5 DE |
3344 | |
3345 | rm -f Make-hooks | |
3346 | touch Make-hooks | |
bd97af06 RÁE |
3347 | target_list="all.cross start.encap rest.encap tags \ |
3348 | install-common install-man \ | |
a541f69d | 3349 | uninstall info man srcextra srcman srcinfo \ |
a03ad584 | 3350 | mostlyclean clean distclean maintainer-clean \ |
8f231b5d | 3351 | stage1 stage2 stage3 stage4 stageprofile stagefeedback" |
571a8de5 DE |
3352 | for t in $target_list |
3353 | do | |
3354 | x= | |
c406e779 | 3355 | for lang in $all_languages |
571a8de5 | 3356 | do |
ab87f8c8 | 3357 | x="$x $lang.$t" |
571a8de5 DE |
3358 | done |
3359 | echo "lang.$t: $x" >> Make-hooks | |
3360 | done | |
3361 | ||
630327c3 NN |
3362 | # -------- |
3363 | # UNSORTED | |
3364 | # -------- | |
3365 | ||
cc06d68c | 3366 | # Create .gdbinit. |
296e46bd | 3367 | |
cc06d68c GP |
3368 | echo "dir ." > .gdbinit |
3369 | echo "dir ${srcdir}" >> .gdbinit | |
3370 | if test x$gdb_needs_out_file_path = xyes | |
3371 | then | |
3372 | echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit | |
3373 | fi | |
3374 | if test "x$subdirs" != x; then | |
3375 | for s in $subdirs | |
3376 | do | |
3377 | echo "dir ${srcdir}/$s" >> .gdbinit | |
3378 | done | |
296e46bd | 3379 | fi |
cc06d68c | 3380 | echo "source ${srcdir}/gdbinit.in" >> .gdbinit |
296e46bd | 3381 | |
8f8d3278 NC |
3382 | # If $(exec_prefix) exists and is not the same as $(prefix), then compute an |
3383 | # absolute path for gcc_tooldir based on inserting the number of up-directory | |
3384 | # movements required to get from $(exec_prefix) to $(prefix) into the basic | |
3385 | # $(libsubdir)/@(unlibsubdir) based path. | |
82cbf8f7 JL |
3386 | # Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel |
3387 | # make and thus we'd get different behavior depending on where we built the | |
3388 | # sources. | |
5949a9fc | 3389 | if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then |
caa55b1e | 3390 | gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)' |
d062c304 | 3391 | else |
8f8d3278 NC |
3392 | changequote(<<, >>)dnl |
3393 | # An explanation of the sed strings: | |
3394 | # -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix' | |
3395 | # -e 's|/$||' match a trailing forward slash and eliminates it | |
3396 | # -e 's|^[^/]|/|' forces the string to start with a forward slash (*) | |
ff7cc307 | 3397 | # -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../ |
8f8d3278 NC |
3398 | # |
3399 | # (*) Note this pattern overwrites the first character of the string | |
3400 | # with a forward slash if one is not already present. This is not a | |
3401 | # problem because the exact names of the sub-directories concerned is | |
3402 | # unimportant, just the number of them matters. | |
3403 | # | |
3404 | # The practical upshot of these patterns is like this: | |
3405 | # | |
3406 | # prefix exec_prefix result | |
3407 | # ------ ----------- ------ | |
3408 | # /foo /foo/bar ../ | |
3409 | # /foo/ /foo/bar ../ | |
3410 | # /foo /foo/bar/ ../ | |
3411 | # /foo/ /foo/bar/ ../ | |
3412 | # /foo /foo/bar/ugg ../../ | |
3413 | # | |
4c112cda | 3414 | dollar='$$' |
caa55b1e | 3415 | gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)" |
8f8d3278 | 3416 | changequote([, ])dnl |
d062c304 JL |
3417 | fi |
3418 | AC_SUBST(gcc_tooldir) | |
4c112cda | 3419 | AC_SUBST(dollar) |
d062c304 | 3420 | |
2bbea3a6 RH |
3421 | # Find a directory in which to install a shared libgcc. |
3422 | ||
3423 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
e8bec136 RO |
3424 | [ --enable-version-specific-runtime-libs |
3425 | specify that runtime libraries should be | |
3426 | installed in a compiler-specific directory]) | |
2bbea3a6 | 3427 | |
5b15f277 RH |
3428 | AC_ARG_WITH(slibdir, |
3429 | [ --with-slibdir=DIR shared libraries in DIR [LIBDIR]], | |
3430 | slibdir="$with_slibdir", | |
3431 | if test "${enable_version_specific_runtime_libs+set}" = set; then | |
2bbea3a6 | 3432 | slibdir='$(libsubdir)' |
5b15f277 | 3433 | elif test "$host" != "$target"; then |
2bbea3a6 RH |
3434 | slibdir='$(build_tooldir)/lib' |
3435 | else | |
5b15f277 RH |
3436 | slibdir='$(libdir)' |
3437 | fi) | |
2bbea3a6 RH |
3438 | AC_SUBST(slibdir) |
3439 | ||
1e6347d8 | 3440 | objdir=`${PWDCMD-pwd}` |
7e717196 JL |
3441 | AC_SUBST(objdir) |
3442 | ||
46f18e7b RK |
3443 | # Substitute configuration variables |
3444 | AC_SUBST(subdirs) | |
8ac9d31f | 3445 | AC_SUBST(srcdir) |
46f18e7b RK |
3446 | AC_SUBST(all_boot_languages) |
3447 | AC_SUBST(all_compilers) | |
e2500fed | 3448 | AC_SUBST(all_gtfiles) |
8ac9d31f TJ |
3449 | AC_SUBST(all_gtfiles_files_langs) |
3450 | AC_SUBST(all_gtfiles_files_files) | |
2ed26f6b | 3451 | AC_SUBST(all_lang_makefrags) |
9f3d1bc2 BK |
3452 | AC_SUBST(all_lang_makefiles) |
3453 | AC_SUBST(all_languages) | |
9f3d1bc2 BK |
3454 | AC_SUBST(all_stagestuff) |
3455 | AC_SUBST(build_exeext) | |
3456 | AC_SUBST(build_install_headers_dir) | |
3457 | AC_SUBST(build_xm_file_list) | |
e22340b0 | 3458 | AC_SUBST(build_xm_include_list) |
11642c3a | 3459 | AC_SUBST(build_xm_defines) |
cbc59f01 | 3460 | AC_SUBST(check_languages) |
9f3d1bc2 | 3461 | AC_SUBST(cc_set_by_configure) |
5aa82ace | 3462 | AC_SUBST(quoted_cc_set_by_configure) |
9f3d1bc2 | 3463 | AC_SUBST(cpp_install_dir) |
2ed26f6b ZW |
3464 | AC_SUBST(xmake_file) |
3465 | AC_SUBST(tmake_file) | |
30500d84 | 3466 | AC_SUBST(extra_gcc_objs) |
9f3d1bc2 | 3467 | AC_SUBST(extra_headers_list) |
46f18e7b | 3468 | AC_SUBST(extra_objs) |
9f3d1bc2 BK |
3469 | AC_SUBST(extra_parts) |
3470 | AC_SUBST(extra_passes) | |
3471 | AC_SUBST(extra_programs) | |
9f3d1bc2 | 3472 | AC_SUBST(float_h_file) |
cc1e60ea | 3473 | AC_SUBST(gcc_config_arguments) |
9f3d1bc2 | 3474 | AC_SUBST(gcc_gxx_include_dir) |
e2187d3b | 3475 | AC_SUBST(libstdcxx_incdir) |
9f3d1bc2 | 3476 | AC_SUBST(host_exeext) |
46f18e7b | 3477 | AC_SUBST(host_xm_file_list) |
e22340b0 | 3478 | AC_SUBST(host_xm_include_list) |
11642c3a | 3479 | AC_SUBST(host_xm_defines) |
476d9098 | 3480 | AC_SUBST(out_host_hook_obj) |
9f3d1bc2 | 3481 | AC_SUBST(install) |
d7b42618 | 3482 | AC_SUBST(lang_opt_files) |
9f3d1bc2 | 3483 | AC_SUBST(lang_specs_files) |
3103b7db | 3484 | AC_SUBST(lang_tree_files) |
46f18e7b | 3485 | AC_SUBST(local_prefix) |
9f3d1bc2 BK |
3486 | AC_SUBST(md_file) |
3487 | AC_SUBST(objc_boehm_gc) | |
3488 | AC_SUBST(out_file) | |
3489 | AC_SUBST(out_object_file) | |
46f18e7b | 3490 | AC_SUBST(stage_prefix_set_by_configure) |
596151e1 | 3491 | AC_SUBST(quoted_stage_prefix_set_by_configure) |
9f3d1bc2 BK |
3492 | AC_SUBST(thread_file) |
3493 | AC_SUBST(tm_file_list) | |
e22340b0 | 3494 | AC_SUBST(tm_include_list) |
d5355cb2 | 3495 | AC_SUBST(tm_defines) |
11642c3a | 3496 | AC_SUBST(tm_p_file_list) |
e22340b0 ZW |
3497 | AC_SUBST(tm_p_include_list) |
3498 | AC_SUBST(xm_file_list) | |
3499 | AC_SUBST(xm_include_list) | |
3d9d2476 | 3500 | AC_SUBST(xm_defines) |
aac69a49 NC |
3501 | AC_SUBST(c_target_objs) |
3502 | AC_SUBST(cxx_target_objs) | |
11642c3a | 3503 | AC_SUBST(target_cpu_default) |
46f18e7b | 3504 | |
46f18e7b RK |
3505 | AC_SUBST_FILE(language_hooks) |
3506 | ||
7903cebc NN |
3507 | # Echo link setup. |
3508 | if test x${build} = x${host} ; then | |
3509 | if test x${host} = x${target} ; then | |
3510 | echo "Links are now set up to build a native compiler for ${target}." 1>&2 | |
3511 | else | |
3512 | echo "Links are now set up to build a cross-compiler" 1>&2 | |
3513 | echo " from ${host} to ${target}." 1>&2 | |
3514 | fi | |
46f18e7b | 3515 | else |
7903cebc NN |
3516 | if test x${host} = x${target} ; then |
3517 | echo "Links are now set up to build (on ${build}) a native compiler" 1>&2 | |
3518 | echo " for ${target}." 1>&2 | |
3519 | else | |
3520 | echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2 | |
3521 | echo " from ${host} to ${target}." 1>&2 | |
3522 | fi | |
46f18e7b RK |
3523 | fi |
3524 | ||
6de9cd9a DN |
3525 | AC_ARG_VAR(GMPLIBS,[How to link GMP]) |
3526 | AC_ARG_VAR(GMPINC,[How to find GMP include files]) | |
3527 | ||
46f18e7b RK |
3528 | # Configure the subdirectories |
3529 | # AC_CONFIG_SUBDIRS($subdirs) | |
3530 | ||
3531 | # Create the Makefile | |
5891b37d | 3532 | # and configure language subdirectories |
914c5af7 NN |
3533 | AC_CONFIG_FILES($all_outputs) |
3534 | ||
3535 | AC_CONFIG_COMMANDS([default], | |
cdcc6a01 | 3536 | [ |
f1faaabd NN |
3537 | case ${CONFIG_HEADERS} in |
3538 | *auto-host.h:config.in*) | |
3539 | echo > cstamp-h ;; | |
cdcc6a01 | 3540 | esac |
2ed26f6b | 3541 | # Make sure all the subdirs exist. |
3b620440 | 3542 | for d in $subdirs doc build |
2ed26f6b | 3543 | do |
2ed26f6b | 3544 | test -d $d || mkdir $d |
2ed26f6b | 3545 | done |
93cf819d BK |
3546 | # If the host supports symlinks, point stage[1234] at ../stage[1234] so |
3547 | # bootstrapping and the installation procedure can still use | |
3548 | # CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks, | |
3549 | # FLAGS_TO_PASS has been modified to solve the problem there. | |
3550 | # This is virtually a duplicate of what happens in configure.lang; we do | |
3551 | # an extra check to make sure this only happens if ln -s can be used. | |
35f06ae4 PB |
3552 | case "$LN_S" in |
3553 | *-s*) | |
3554 | for d in ${subdirs} ; do | |
1e6347d8 | 3555 | STARTDIR=`${PWDCMD-pwd}` |
4e8a434e | 3556 | cd $d |
8f231b5d | 3557 | for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include |
4e8a434e BK |
3558 | do |
3559 | rm -f $t | |
35f06ae4 | 3560 | $LN_S ../$t $t 2>/dev/null |
4e8a434e BK |
3561 | done |
3562 | cd $STARTDIR | |
35f06ae4 PB |
3563 | done |
3564 | ;; | |
3565 | esac | |
0d24f4d1 | 3566 | ], |
35f06ae4 | 3567 | [subdirs='$subdirs']) |
914c5af7 | 3568 | AC_OUTPUT |