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b2dad0e3 BK |
1 | dnl aclocal.m4 generated automatically by aclocal 1.4 |
2 | ||
e7140677 | 3 | dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc. |
b2dad0e3 BK |
4 | dnl This file is free software; the Free Software Foundation |
5 | dnl gives unlimited permission to copy and/or distribute it, | |
6 | dnl with or without modifications, as long as this notice is preserved. | |
7 | ||
8 | dnl This program is distributed in the hope that it will be useful, | |
9 | dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without | |
10 | dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A | |
11 | dnl PARTICULAR PURPOSE. | |
12 | ||
13 | dnl | |
14 | dnl Initialize configure bits. | |
15 | dnl | |
16 | dnl Define OPTLEVEL='-O2' if new inlining code present. | |
17 | dnl | |
18 | dnl GLIBCPP_CONFIGURE | |
19 | AC_DEFUN(GLIBCPP_CONFIGURE, [ | |
20 | dnl Default to --enable-multilib | |
21 | AC_ARG_ENABLE(multilib, | |
22 | [ --enable-multilib build hella library versions (default)], | |
23 | [case "${enableval}" in | |
24 | yes) multilib=yes ;; | |
25 | no) multilib=no ;; | |
26 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
27 | esac], [multilib=yes])dnl | |
28 | ||
e2c20fae | 29 | glibcpp_basedir=$auxdir/$1/libstdc++-v3 |
b2dad0e3 BK |
30 | AC_SUBST(glibcpp_basedir) |
31 | ||
6a163d7c | 32 | AM_INIT_AUTOMAKE(libstdc++, 2.91) |
b2dad0e3 | 33 | |
28861379 BK |
34 | # Never versions of autoconf add an underscore to these functions. |
35 | # Prevent future problems ... | |
36 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
37 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
38 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
39 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
5780a46b BK |
40 | |
41 | # AC_PROG_CC | |
42 | ||
b2dad0e3 BK |
43 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
44 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
45 | # are probably using a cross compiler, which will not be able to fully | |
46 | # link an executable. This should really be fixed in autoconf | |
47 | # itself. | |
48 | ||
49 | AC_DEFUN(LIB_AC_PROG_CC, | |
50 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
51 | dnl Fool anybody using AC_PROG_CC. | |
52 | AC_PROVIDE([AC_PROG_CC]) | |
53 | AC_CHECK_PROG(CC, gcc, gcc) | |
54 | if test -z "$CC"; then | |
55 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
56 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
57 | fi | |
58 | ||
59 | AC_PROG_CC_GNU | |
60 | ||
61 | if test $ac_cv_prog_gcc = yes; then | |
62 | GCC=yes | |
63 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
64 | dnl plays around with CFLAGS (such as to build both debugging and | |
65 | dnl normal versions of a library), tasteless as that idea is. | |
66 | ac_test_CFLAGS="${CFLAGS+set}" | |
67 | ac_save_CFLAGS="$CFLAGS" | |
68 | CFLAGS= | |
69 | AC_PROG_CC_G | |
70 | if test "$ac_test_CFLAGS" = set; then | |
71 | CFLAGS="$ac_save_CFLAGS" | |
72 | elif test $ac_cv_prog_cc_g = yes; then | |
73 | CFLAGS="-g -O2" | |
74 | else | |
75 | CFLAGS="-O2" | |
76 | fi | |
77 | else | |
78 | GCC= | |
79 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
80 | fi | |
81 | ]) | |
82 | ||
83 | LIB_AC_PROG_CC | |
84 | ||
5780a46b BK |
85 | # Can't just call these here as g++ requires libstc++ to be built.... |
86 | # AC_PROG_CXX | |
87 | ||
b2dad0e3 BK |
88 | # Likewise for AC_PROG_CXX. |
89 | AC_DEFUN(LIB_AC_PROG_CXX, | |
90 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
91 | dnl Fool anybody using AC_PROG_CXX. | |
92 | AC_PROVIDE([AC_PROG_CXX]) | |
de9aefe0 AO |
93 | # Use CXX_libstdcxx so that we do not cause CXX to be cached with the |
94 | # flags that come in CXX while configuring libstdc++. They're different | |
bb4127f8 MM |
95 | # from those used for all other target libraries. If CXX is set in |
96 | # the environment, respect that here. | |
97 | CXX_libstdcxx=$CXX | |
aa17a5f3 | 98 | AC_CHECK_PROGS(CXX_libstdcxx, $CCC c++ g++ gcc CC cxx cc++, gcc) |
de9aefe0 AO |
99 | CXX=$CXX_libstdcxx |
100 | AC_SUBST(CXX) | |
b2dad0e3 BK |
101 | test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) |
102 | ||
103 | AC_PROG_CXX_GNU | |
104 | ||
105 | if test $ac_cv_prog_gxx = yes; then | |
106 | GXX=yes | |
107 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
108 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
109 | dnl normal versions of a library), tasteless as that idea is. | |
110 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
111 | ac_save_CXXFLAGS="$CXXFLAGS" | |
112 | CXXFLAGS= | |
113 | AC_PROG_CXX_G | |
114 | if test "$ac_test_CXXFLAGS" = set; then | |
115 | CXXFLAGS="$ac_save_CXXFLAGS" | |
116 | elif test $ac_cv_prog_cxx_g = yes; then | |
117 | CXXFLAGS="-g -O2" | |
118 | else | |
119 | CXXFLAGS="-O2" | |
120 | fi | |
121 | else | |
122 | GXX= | |
123 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
124 | fi | |
125 | ]) | |
126 | ||
127 | LIB_AC_PROG_CXX | |
128 | ||
5780a46b BK |
129 | AC_CHECK_TOOL(AS, as) |
130 | AC_CHECK_TOOL(AR, ar) | |
131 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
132 | ||
133 | AC_PROG_INSTALL | |
b2dad0e3 | 134 | |
5780a46b | 135 | AM_MAINTAINER_MODE |
b2dad0e3 | 136 | |
5780a46b BK |
137 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
138 | # at least currently, we never actually build a program, so we never | |
139 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
140 | # fails, because we are probably configuring with a cross compiler | |
141 | # which cant create executables. So we include AC_EXEEXT to keep | |
142 | # automake happy, but we dont execute it, since we dont care about | |
143 | # the result. | |
144 | if false; then | |
145 | AC_EXEEXT | |
146 | fi | |
b2dad0e3 | 147 | |
5780a46b BK |
148 | . [$]{glibcpp_basedir}/configure.host |
149 | ||
150 | case [$]{glibcpp_basedir} in | |
6f87af20 | 151 | /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; |
5780a46b BK |
152 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; |
153 | esac | |
b2dad0e3 | 154 | |
d0941a31 | 155 | # This does for the target what configure.host does for the host. In |
5e3cbe0b | 156 | # addition to possibly modifying the same flags, it also sets up symlinks. |
d0941a31 | 157 | GLIBCPP_CHECK_TARGET |
b2dad0e3 BK |
158 | ]) |
159 | ||
160 | ||
161 | dnl | |
8bd636c5 | 162 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
163 | dnl specific precautions need to be taken. |
164 | dnl | |
165 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
166 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
44382959 BK |
167 | if test ! -f stamp-sanity-compiler; then |
168 | AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) | |
169 | AC_LANG_SAVE | |
170 | AC_LANG_CPLUSPLUS | |
171 | AC_EGREP_CPP(ok, [ | |
6a163d7c | 172 | #if __GNUC__ >= 3 |
c470c17d BK |
173 | ok |
174 | #endif | |
6a163d7c | 175 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above])) |
44382959 | 176 | AC_LANG_RESTORE |
c470c17d | 177 | AC_MSG_RESULT($gpp_satisfactory) |
44382959 BK |
178 | touch stamp-sanity-compiler |
179 | fi | |
c470c17d BK |
180 | ]) |
181 | ||
182 | ||
183 | dnl | |
184 | dnl Test for newer compiler features, or features that are present in newer | |
d3a12960 BK |
185 | dnl compiler version but not older compiler versions should be placed |
186 | dnl here. | |
b2dad0e3 | 187 | dnl |
7f586614 BK |
188 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
189 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
190 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 191 | dnl |
c470c17d | 192 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
c21b6f87 PE |
193 | dnl compiler supports it and the user has not requested debug mode. |
194 | dnl | |
c470c17d BK |
195 | dnl GLIBCPP_CHECK_COMPILER_FEATURES |
196 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 PE |
197 | # All these tests are for C++; save the language and the compiler flags. |
198 | # The CXXFLAGS thing is suspicious, but based on similar bits | |
199 | # found in GLIBCPP_CONFIGURE. | |
200 | AC_LANG_SAVE | |
201 | AC_LANG_CPLUSPLUS | |
202 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
203 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 204 | |
7f586614 BK |
205 | # Check for maintainer-mode bits. |
206 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
207 | WERROR='' | |
8bd636c5 | 208 | else |
7f586614 | 209 | WERROR='-Werror' |
8bd636c5 PE |
210 | fi |
211 | ||
c470c17d BK |
212 | # Check for -ffunction-sections -fdata-sections |
213 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 214 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
215 | AC_TRY_COMPILE(, [int foo; |
216 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
217 | if test "$ac_test_CXXFLAGS" = set; then | |
218 | CXXFLAGS="$ac_save_CXXFLAGS" | |
219 | else | |
220 | # this is the suspicious part | |
221 | CXXFLAGS='' | |
222 | fi | |
4c07386b | 223 | if test x"$ac_fdsections" = x"yes" && test x"$enable_debug" = x"no"; then |
c470c17d BK |
224 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
225 | fi | |
226 | AC_MSG_RESULT($ac_fdsections) | |
227 | ||
a4e99046 | 228 | AC_LANG_RESTORE |
8bd636c5 | 229 | AC_SUBST(WERROR) |
c470c17d | 230 | AC_SUBST(SECTION_FLAGS) |
b2dad0e3 BK |
231 | ]) |
232 | ||
c470c17d BK |
233 | |
234 | dnl | |
421173e6 PE |
235 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
236 | dnl the native linker is in use, all variables will be defined to something | |
237 | dnl safe (like an empty string). | |
238 | dnl | |
239 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
240 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 241 | dnl |
c470c17d BK |
242 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
243 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
244 | # If we're not using GNU ld, then there's no point in even trying these |
245 | # tests. Check for that first. We should have already tested for gld | |
246 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
247 | SECTION_LDFLAGS='' |
248 | OPT_LDFLAGS='' | |
421173e6 | 249 | AC_REQUIRE([AC_PROG_LD]) |
e7140677 BK |
250 | |
251 | # Set --gc-sections. | |
f4c79fef | 252 | if test "$ac_cv_prog_gnu_ld" = "notbroken"; then |
a9117427 | 253 | # GNU ld it is! Joy and bunny rabbits! |
421173e6 PE |
254 | |
255 | # All these tests are for C++; save the language and the compiler flags. | |
256 | # Need to do this so that g++ won't try to link in libstdc++ | |
257 | ac_test_CFLAGS="${CFLAGS+set}" | |
258 | ac_save_CFLAGS="$CFLAGS" | |
e7140677 | 259 | CFLAGS='-x c++ -Wl,--gc-sections' |
421173e6 PE |
260 | |
261 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
262 | # XXX This test is broken at the moment, as symbols required for |
263 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
264 | # this test has cored on solaris in the past. In addition, |
265 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
266 | # used sections, first .eh_frame and now some of the glibc sections for | |
267 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
268 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
269 | AC_TRY_RUN([ | |
270 | int main(void) | |
271 | { | |
a9117427 BK |
272 | try { throw 1; } |
273 | catch (...) { }; | |
421173e6 PE |
274 | return 0; |
275 | } | |
e466dc8a | 276 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
277 | if test "$ac_test_CFLAGS" = set; then |
278 | CFLAGS="$ac_save_CFLAGS" | |
279 | else | |
280 | # this is the suspicious part | |
281 | CFLAGS='' | |
282 | fi | |
283 | if test "$ac_sectionLDflags" = "yes"; then | |
e7140677 | 284 | SECTION_LDFLAGS='-Wl,--gc-sections' |
421173e6 PE |
285 | fi |
286 | AC_MSG_RESULT($ac_sectionLDflags) | |
e7140677 | 287 | fi |
a9117427 | 288 | |
e7140677 | 289 | # Set linker optimization flags. |
4c07386b | 290 | if test x"$ac_cv_prog_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then |
421173e6 | 291 | OPT_LDFLAGS='-Wl,-O1' |
421173e6 | 292 | fi |
e7140677 | 293 | |
c470c17d | 294 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 295 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
296 | ]) |
297 | ||
298 | ||
b2dad0e3 | 299 | dnl |
11fc1858 | 300 | dnl Check to see if the (math function) argument passed is |
f8db4f20 | 301 | dnl declared when using the c++ compiler |
38bd7296 BK |
302 | dnl ASSUMES argument is a math function with ONE parameter |
303 | dnl | |
f8db4f20 BK |
304 | dnl GLIBCPP_CHECK_MATH_DECL_1 |
305 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [ | |
38bd7296 | 306 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
307 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
308 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
309 | AC_LANG_SAVE | |
310 | AC_LANG_CPLUSPLUS | |
01a49191 RB |
311 | AC_TRY_COMPILE([#include <math.h> |
312 | #ifdef HAVE_IEEEFP_H | |
313 | #include <ieeefp.h> | |
314 | #endif | |
315 | ], | |
f84ef7fb PE |
316 | [ $1(0);], |
317 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
318 | AC_LANG_RESTORE | |
319 | ]) | |
320 | fi | |
421173e6 | 321 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
322 | ]) |
323 | ||
324 | dnl | |
325 | dnl Check to see if the (math function) argument passed is | |
326 | dnl 1) declared when using the c++ compiler | |
327 | dnl 2) has "C" linkage | |
328 | dnl 3) if not, see if 1) and 2) for argument prepended with '_' | |
329 | dnl | |
330 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
331 | dnl | |
332 | dnl argument 1 is name of function to check | |
333 | dnl | |
334 | dnl ASSUMES argument is a math function with ONE parameter | |
335 | dnl | |
336 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
337 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
338 | GLIBCPP_CHECK_MATH_DECL_1($1) | |
421173e6 | 339 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 340 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
341 | else |
342 | GLIBCPP_CHECK_MATH_DECL_1(_$1) | |
343 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
344 | AC_CHECK_FUNCS(_$1) | |
345 | fi | |
38bd7296 BK |
346 | fi |
347 | ]) | |
348 | ||
f8db4f20 | 349 | |
20b11783 MM |
350 | dnl |
351 | dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of | |
352 | dnl of functions at once. It's an all-or-nothing check -- either | |
9b8fd32c | 353 | dnl HAVE_XYZ is defined for each of the functions, or for none of them. |
20b11783 MM |
354 | dnl Doing it this way saves significant configure time. |
355 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ | |
356 | AC_MSG_CHECKING([for $1 functions]) | |
357 | AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ | |
358 | AC_LANG_SAVE | |
359 | AC_LANG_CPLUSPLUS | |
360 | AC_TRY_COMPILE([#include <math.h>], | |
361 | [ `for x in $3; do echo "$x (0);"; done` ], | |
9b8fd32c PE |
362 | [glibcpp_cv_func_$2_use=yes], |
363 | [glibcpp_cv_func_$2_use=no]) | |
20b11783 MM |
364 | AC_LANG_RESTORE]) |
365 | AC_MSG_RESULT($glibcpp_cv_func_$2_use) | |
366 | if test x$glibcpp_cv_func_$2_use = x"yes"; then | |
367 | AC_CHECK_FUNCS($3) | |
368 | fi | |
369 | ]) | |
38bd7296 BK |
370 | |
371 | dnl | |
11fc1858 | 372 | dnl Check to see if the (math function) argument passed is |
f8db4f20 BK |
373 | dnl declared when using the c++ compiler |
374 | dnl ASSUMES argument is a math function with ONE parameter | |
38bd7296 | 375 | dnl |
f8db4f20 BK |
376 | dnl GLIBCPP_CHECK_MATH_DECL_2 |
377 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [ | |
38bd7296 | 378 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
379 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
380 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
381 | AC_LANG_SAVE | |
382 | AC_LANG_CPLUSPLUS | |
383 | AC_TRY_COMPILE([#include <math.h>], | |
384 | [ $1(0, 0);], | |
385 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
386 | AC_LANG_RESTORE | |
387 | ]) | |
388 | fi | |
421173e6 | 389 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
38bd7296 BK |
390 | ]) |
391 | ||
38bd7296 | 392 | dnl |
11fc1858 | 393 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
394 | dnl 1) declared when using the c++ compiler |
395 | dnl 2) has "C" linkage | |
396 | dnl | |
397 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
398 | dnl | |
399 | dnl argument 1 is name of function to check | |
400 | dnl | |
f8db4f20 | 401 | dnl ASSUMES argument is a math function with TWO parameters |
38bd7296 | 402 | dnl |
f8db4f20 BK |
403 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 |
404 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
405 | GLIBCPP_CHECK_MATH_DECL_2($1) | |
406 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
407 | AC_CHECK_FUNCS($1) | |
408 | else | |
409 | GLIBCPP_CHECK_MATH_DECL_2(_$1) | |
410 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
411 | AC_CHECK_FUNCS(_$1) | |
412 | fi | |
413 | fi | |
414 | ]) | |
415 | ||
416 | ||
417 | dnl | |
418 | dnl Check to see if the (math function) argument passed is | |
419 | dnl declared when using the c++ compiler | |
420 | dnl ASSUMES argument is a math function with ONE parameter | |
421 | dnl | |
422 | dnl GLIBCPP_CHECK_MATH_DECL_3 | |
423 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [ | |
38bd7296 | 424 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
425 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
426 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
427 | AC_LANG_SAVE | |
428 | AC_LANG_CPLUSPLUS | |
429 | AC_TRY_COMPILE([#include <math.h>], | |
430 | [ $1(0, 0, 0);], | |
431 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
432 | AC_LANG_RESTORE | |
433 | ]) | |
434 | fi | |
421173e6 | 435 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
436 | ]) |
437 | ||
438 | dnl | |
439 | dnl Check to see if the (math function) argument passed is | |
440 | dnl 1) declared when using the c++ compiler | |
441 | dnl 2) has "C" linkage | |
442 | dnl | |
443 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
444 | dnl | |
445 | dnl argument 1 is name of function to check | |
446 | dnl | |
447 | dnl ASSUMES argument is a math function with THREE parameters | |
448 | dnl | |
449 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
450 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
451 | GLIBCPP_CHECK_MATH_DECL_3($1) | |
421173e6 | 452 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 453 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
454 | else |
455 | GLIBCPP_CHECK_MATH_DECL_3(_$1) | |
456 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
457 | AC_CHECK_FUNCS(_$1) | |
458 | fi | |
38bd7296 BK |
459 | fi |
460 | ]) | |
461 | ||
462 | ||
e7140677 BK |
463 | dnl |
464 | dnl Check to see if the (stdlib function) argument passed is | |
465 | dnl 1) declared when using the c++ compiler | |
466 | dnl 2) has "C" linkage | |
467 | dnl | |
468 | dnl Define HAVE_STRTOLD if "strtold" is declared and links | |
469 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
470 | dnl | |
471 | dnl argument 1 is name of function to check | |
472 | dnl | |
473 | dnl ASSUMES argument is a math function with TWO parameters | |
474 | dnl | |
475 | dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 | |
476 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ | |
477 | AC_MSG_CHECKING([for $1 declaration]) | |
f84ef7fb PE |
478 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
479 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
480 | AC_LANG_SAVE | |
481 | AC_LANG_CPLUSPLUS | |
482 | AC_TRY_COMPILE([#include <stdlib.h>], | |
483 | [ $1(0, 0);], | |
484 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
485 | AC_LANG_RESTORE | |
486 | ]) | |
487 | fi | |
e7140677 BK |
488 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
489 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
490 | AC_CHECK_FUNCS($1) | |
491 | fi | |
492 | ]) | |
493 | ||
494 | ||
11fc1858 BK |
495 | dnl |
496 | dnl Because the builtins are picky picky picky about the arguments they take, | |
497 | dnl do an explict linkage tests here. | |
498 | dnl Check to see if the (math function) argument passed is | |
499 | dnl 1) declared when using the c++ compiler | |
500 | dnl 2) has "C" linkage | |
501 | dnl | |
502 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
503 | dnl | |
504 | dnl argument 1 is name of function to check | |
505 | dnl | |
506 | dnl ASSUMES argument is a math function with ONE parameter | |
507 | dnl | |
508 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
509 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 510 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
511 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
512 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
513 | AC_LANG_SAVE | |
514 | AC_LANG_CPLUSPLUS | |
515 | AC_TRY_COMPILE([#include <math.h>], | |
516 | [ $1(0);], | |
517 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
518 | AC_LANG_RESTORE | |
519 | ]) | |
520 | fi | |
421173e6 PE |
521 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
522 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 523 | AC_MSG_CHECKING([for $1 linkage]) |
f84ef7fb PE |
524 | if test x${glibcpp_cv_func_$1_link+set} != xset; then |
525 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ | |
526 | AC_TRY_LINK([#include <math.h>], | |
527 | [ $1(0);], | |
528 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
529 | ]) | |
530 | fi | |
421173e6 PE |
531 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) |
532 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
533 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
534 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
535 | fi | |
536 | fi | |
537 | ]) | |
538 | ||
539 | ||
540 | dnl | |
541 | dnl Check to see what builtin math functions are supported | |
542 | dnl | |
543 | dnl check for __builtin_abs | |
544 | dnl check for __builtin_fabsf | |
545 | dnl check for __builtin_fabs | |
546 | dnl check for __builtin_fabl | |
547 | dnl check for __builtin_labs | |
548 | dnl check for __builtin_sqrtf | |
549 | dnl check for __builtin_sqrtl | |
550 | dnl check for __builtin_fsqrt | |
551 | dnl check for __builtin_sinf | |
552 | dnl check for __builtin_sin | |
553 | dnl check for __builtin_sinl | |
554 | dnl check for __builtin_cosf | |
555 | dnl check for __builtin_cos | |
556 | dnl check for __builtin_cosl | |
557 | dnl | |
558 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
559 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
560 | dnl Test for builtin math functions. | |
561 | dnl These are made in gcc/c-common.c | |
562 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
563 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
564 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
565 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
566 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
567 | ||
568 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
569 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
570 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
571 | ||
572 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
573 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
574 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
575 | ||
576 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
577 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
578 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
579 | ||
580 | dnl There is, without a doubt, a more elegant way to have these | |
581 | dnl names exported so that they won't be stripped out of acconfig.h by | |
582 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
583 | dnl than I.... please email the libstdc++ list if you can figure out a | |
584 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
585 | dnl AC_CHECK_FUNC for things to steal.) | |
586 | dummyvar=no | |
587 | if test x$dummyvar = x"yes"; then | |
588 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
589 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
590 | AC_DEFINE(HAVE___BUILTIN_COS) | |
591 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
592 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
593 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
594 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
595 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
596 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
597 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
598 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
599 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
600 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
601 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
602 | fi | |
603 | ]) | |
604 | ||
605 | ||
e7140677 BK |
606 | dnl |
607 | dnl Check to see what the underlying c library | |
608 | dnl These checks need to do two things: | |
609 | dnl 1) make sure the name is declared when using the c++ compiler | |
610 | dnl 2) make sure the name has "C" linkage | |
611 | dnl This might seem like overkill but experience has shown that it's not... | |
612 | dnl | |
613 | dnl Define HAVE_STRTOF etc if "strtof" is found. | |
614 | dnl Define HAVE_STRTOLD etc if "strtold" is found. | |
615 | dnl | |
616 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
617 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
618 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
619 | ac_save_CXXFLAGS="$CXXFLAGS" | |
620 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
621 | ||
622 | AC_CHECK_FUNCS(strtof) | |
623 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) | |
624 | ||
625 | CXXFLAGS="$ac_save_CXXFLAGS" | |
626 | ]) | |
627 | ||
628 | ||
2f103494 BK |
629 | dnl |
630 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
631 | dnl These checks need to do two things: |
632 | dnl 1) make sure the name is declared when using the c++ compiler | |
633 | dnl 2) make sure the name has "C" linkage | |
634 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
635 | dnl |
636 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
637 | dnl | |
638 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
639 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
640 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
641 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 642 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
643 | |
644 | dnl Check libm | |
2f103494 | 645 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 646 | ac_save_LIBS="$LIBS" |
2f103494 BK |
647 | LIBS="$LIBS $libm" |
648 | ||
38bd7296 BK |
649 | dnl Check to see if certain C math functions exist. |
650 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
651 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
652 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
653 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
654 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
655 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
656 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
657 | ||
658 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 659 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, |
9b8fd32c PE |
660 | float_trig, |
661 | acosf asinf atanf \ | |
20b11783 | 662 | cosf sinf tanf \ |
9b8fd32c | 663 | coshf sinhf tanhf) |
20b11783 | 664 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, |
9b8fd32c | 665 | float_round, |
20b11783 | 666 | ceilf floorf) |
38bd7296 BK |
667 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) |
668 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
38bd7296 | 669 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) |
38bd7296 BK |
670 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) |
671 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
672 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) | |
673 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
674 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
675 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
676 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
38bd7296 | 677 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) |
38bd7296 BK |
678 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) |
679 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
680 | ||
681 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 682 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, |
9b8fd32c PE |
683 | long_double_trig, |
684 | acosl asinl atanl \ | |
20b11783 | 685 | cosl sinl tanl \ |
9b8fd32c | 686 | coshl sinhl tanhl) |
20b11783 | 687 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, |
9b8fd32c | 688 | long_double_round, |
20b11783 | 689 | ceill floorl) |
38bd7296 BK |
690 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) |
691 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 692 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 | 693 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) |
38bd7296 BK |
694 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) |
695 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
38bd7296 BK |
696 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) |
697 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
698 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) | |
699 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
700 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
701 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
702 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
38bd7296 | 703 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) |
38bd7296 BK |
704 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) |
705 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
706 | ||
707 | dnl Some runtimes have these functions with a preceding underscore. Please | |
708 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
709 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
710 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
711 | |
712 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 713 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, |
9b8fd32c PE |
714 | _float_trig, |
715 | _acosf _asinf _atanf \ | |
20b11783 | 716 | _cosf _sinf _tanf \ |
9b8fd32c | 717 | _coshf _sinhf _tanhf) |
20b11783 | 718 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, |
9b8fd32c | 719 | _float_round, |
20b11783 | 720 | _ceilf _floorf) |
38bd7296 BK |
721 | |
722 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 723 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, |
9b8fd32c PE |
724 | _long_double_trig, |
725 | _acosl _asinl _atanl \ | |
20b11783 | 726 | _cosl _sinl _tanl \ |
9b8fd32c | 727 | _coshl _sinhl _tanhl) |
20b11783 | 728 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, |
9b8fd32c | 729 | _long_double_round, |
20b11783 | 730 | _ceill _floorl) |
38bd7296 BK |
731 | |
732 | LIBS="$ac_save_LIBS" | |
733 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
734 | ]) |
735 | ||
736 | ||
737 | dnl | |
738 | dnl Check to see if there is native support for complex | |
739 | dnl | |
740 | dnl Don't compile bits in math/* if native support exits. | |
741 | dnl | |
8b8ab21c | 742 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found. |
2f103494 BK |
743 | dnl |
744 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
745 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
746 | dnl Check for complex versions of math functions of platform. | |
b4b2a487 | 747 | AC_CHECK_LIB(m, main) |
1228c7b6 | 748 | AC_REPLACE_MATHFUNCS(nan hypot hypotf atan2f expf copysignf) |
11fc1858 BK |
749 | |
750 | dnl Compile the long double complex functions only if the function | |
751 | dnl provides the non-complex long double functions that are needed. | |
752 | dnl Currently this includes copysignl and atan2l, which should be | |
753 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. | |
754 | USE_COMPLEX_LONG_DOUBLE=no | |
755 | if test x$ac_cv_func_atan2l = x"yes" \ | |
756 | && test x$ac_cv_func_copysignl = x"yes"; then | |
757 | USE_COMPLEX_LONG_DOUBLE=yes | |
1228c7b6 | 758 | AC_REPLACE_MATHFUNCS(hypotl signbitl) |
11fc1858 BK |
759 | fi |
760 | ||
2f103494 BK |
761 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
762 | ]) | |
763 | ||
54fa7415 | 764 | |
d0941a31 PE |
765 | dnl Check to see what architecture and operating system we are compiling |
766 | dnl for. Also, if architecture- or OS-specific flags are required for | |
767 | dnl compilation, pick them up here. | |
e974e9cc | 768 | dnl |
d0941a31 PE |
769 | dnl GLIBCPP_CHECK_TARGET |
770 | AC_DEFUN(GLIBCPP_CHECK_TARGET, [ | |
771 | . [$]{glibcpp_basedir}/configure.target | |
772 | AC_MSG_RESULT(CPU config directory is $cpu_include_dir) | |
773 | AC_MSG_RESULT(OS config directory is $os_include_dir) | |
5e53dba6 | 774 | AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h) |
e974e9cc BK |
775 | ]) |
776 | ||
777 | ||
b2dad0e3 BK |
778 | dnl |
779 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
8b8ab21c BK |
780 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
781 | dnl must have been previously checked.) | |
b2dad0e3 BK |
782 | dnl |
783 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found | |
7b331228 | 784 | dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h |
b2dad0e3 BK |
785 | dnl |
786 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
787 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
7b331228 BK |
788 | |
789 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and | |
790 | dnl others even if wchar_t support is not on. | |
791 | AC_MSG_CHECKING([for mbstate_t]) | |
792 | AC_TRY_COMPILE([#include <wchar.h>], | |
793 | [mbstate_t teststate;], | |
794 | have_mbstate_t=yes, have_mbstate_t=no) | |
795 | AC_MSG_RESULT($have_mbstate_t) | |
796 | if test x"$have_mbstate_t" = xyes; then | |
797 | AC_DEFINE(HAVE_MBSTATE_T) | |
798 | fi | |
799 | ||
800 | dnl Sanity check for existence of ISO C99 headers for extended encoding. | |
801 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
802 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
b2dad0e3 | 803 | |
7b331228 BK |
804 | dnl Only continue checking if the ISO C99 headers exist and support is on. |
805 | if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes \ | |
806 | && test x"$enable_c_mbchar" != xno; then | |
807 | ||
808 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
809 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
810 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
811 | AC_TRY_COMPILE([#include <wchar.h>], | |
812 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
813 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
814 | AC_MSG_RESULT($has_wchar_minmax) | |
8b8ab21c | 815 | |
7b331228 BK |
816 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
817 | dnl to specialize for char_traits<wchar_t> or not. | |
818 | AC_MSG_CHECKING([for WEOF]) | |
819 | AC_TRY_COMPILE([ | |
820 | #include <wchar.h> | |
821 | #include <stddef.h>], | |
822 | [wint_t i = WEOF;], | |
823 | has_weof=yes, has_weof=no) | |
824 | AC_MSG_RESULT($has_weof) | |
8b8ab21c | 825 | |
7b331228 BK |
826 | dnl Tests for wide character functions used in char_traits<wchar_t>. |
827 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \ | |
828 | wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no) | |
8b8ab21c | 829 | |
7b331228 BK |
830 | AC_MSG_CHECKING([for ISO C99 wchar_t support]) |
831 | if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \ | |
832 | && test x"$ac_wfuncs" = xyes; then | |
833 | ac_isoC99_wchar_t=yes | |
834 | else | |
835 | ac_isoC99_wchar_t=no | |
836 | fi | |
837 | AC_MSG_RESULT($ac_isoC99_wchar_t) | |
8b8ab21c | 838 | |
7b331228 BK |
839 | dnl Use iconv for wchar_t to char conversions. As such, check for |
840 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
841 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
842 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
843 | ||
844 | dnl Check for existence of libiconv.a providing XPG2 wchar_t support. | |
845 | AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") | |
846 | ac_save_LIBS="$LIBS" | |
847 | LIBS="$LIBS $libiconv" | |
848 | ||
849 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
850 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
8b8ab21c | 851 | |
7b331228 | 852 | LIBS="$ac_save_LIBS" |
5b20f7a0 | 853 | |
7b331228 BK |
854 | AC_MSG_CHECKING([for XPG2 wchar_t support]) |
855 | if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \ | |
856 | && test x"$ac_XPG2funcs" = xyes; then | |
857 | ac_XPG2_wchar_t=yes | |
858 | else | |
859 | ac_XPG2_wchar_t=no | |
860 | fi | |
861 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
b2dad0e3 | 862 | |
7b331228 BK |
863 | dnl At the moment, only enable wchar_t specializations if all the |
864 | dnl above support is present. | |
865 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
866 | if test x"$ac_isoC99_wchar_t" = xyes \ | |
867 | && test x"$ac_XPG2_wchar_t" = xyes; then | |
7b331228 BK |
868 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) |
869 | AC_MSG_RESULT("yes") | |
3840fa2a | 870 | else |
7b331228 | 871 | AC_MSG_RESULT("no") |
3840fa2a | 872 | fi |
b2dad0e3 | 873 | else |
7b331228 BK |
874 | dnl Wide characters disabled by the user. |
875 | AC_MSG_WARN([wchar_t support disabled.]) | |
b2dad0e3 | 876 | fi |
b2dad0e3 BK |
877 | ]) |
878 | ||
879 | ||
880 | dnl | |
881 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
882 | dnl __complex__ float support. | |
883 | dnl | |
884 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
885 | dnl | |
2f103494 BK |
886 | dnl Check to see if this version of GNU C++ is afflicted by bugs in |
887 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
888 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
889 | dnl ctor in the specializations of complex<>. | |
890 | dnl | |
891 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
892 | dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT | |
893 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [ | |
b2dad0e3 | 894 | AC_REQUIRE([AC_PROG_CXX]) |
2f103494 BK |
895 | |
896 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
897 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
898 | AC_LANG_SAVE | |
899 | AC_LANG_CPLUSPLUS | |
900 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
8b8ab21c BK |
901 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ |
902 | [ dcomplex x; f(x); ], | |
2f103494 BK |
903 | glibcpp_cv_complex=ok, |
904 | glibcpp_cv_complex=buggy | |
905 | ) | |
906 | AC_LANG_RESTORE | |
907 | ]) | |
908 | AC_MSG_RESULT($glibcpp_cv_complex) | |
909 | if test $glibcpp_cv_complex = buggy; then | |
910 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
911 | fi | |
912 | ||
b2dad0e3 BK |
913 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) |
914 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
915 | AC_LANG_SAVE | |
916 | AC_LANG_CPLUSPLUS | |
917 | rm -f conftest.h | |
918 | cat > conftest.h <<EOB | |
919 | // | |
920 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
921 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
922 | // | |
747dcaf1 | 923 | // See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for |
b2dad0e3 BK |
924 | // more info on the bug itself. |
925 | // | |
926 | struct | |
927 | float_complex | |
928 | { | |
929 | __complex__ float m_value; | |
930 | float_complex (float = 0.0f, float = 0.0f); | |
931 | float_complex (__complex__ float val) : m_value (val) {} | |
932 | float_complex foo (const float_complex &val) | |
933 | { return float_complex (~val.m_value); } | |
934 | }; | |
935 | EOB | |
936 | AC_TRY_COMPILE([#include "conftest.h"], , | |
937 | glibcpp_cv_float_complex=ok, | |
938 | glibcpp_cv_float_complex=buggy | |
939 | ) | |
940 | AC_LANG_RESTORE | |
941 | ]) | |
942 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
943 | if test $glibcpp_cv_float_complex = buggy; then | |
944 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
945 | fi | |
946 | ]) | |
947 | ||
948 | ||
b2dad0e3 | 949 | dnl |
8bd636c5 | 950 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
951 | dnl |
952 | dnl GLIBCPP_ENABLE_DEBUG | |
34791641 | 953 | dnl --enable-debug sets '-ggdb3 -O0'. |
b2dad0e3 BK |
954 | dnl --disable-debug sets '-g' and whatever optimization options the |
955 | dnl compiler can handle. | |
7f586614 | 956 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
957 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
958 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
959 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
960 | dnl defaults to `no'. | |
961 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
962 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
963 | AC_ARG_ENABLE(debug, | |
964 | changequote(<<, >>)dnl | |
965 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
966 | changequote([, ])dnl | |
5780a46b | 967 | [case "${enableval}" in |
b2dad0e3 BK |
968 | yes) enable_debug=yes ;; |
969 | no) enable_debug=no ;; | |
970 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
971 | esac], | |
972 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 973 | |
b2dad0e3 | 974 | dnl Option parsed, now set things appropriately |
5780a46b | 975 | case "${enable_debug}" in |
cde28f0d | 976 | yes) |
34791641 | 977 | DEBUG_FLAGS='-O0 -ggdb3' |
6abd2230 | 978 | ;; |
f3b004d8 | 979 | no) |
8b8ab21c | 980 | DEBUG_FLAGS='-g' |
f3b004d8 | 981 | ;; |
b2dad0e3 | 982 | esac |
c470c17d | 983 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
984 | ]) |
985 | ||
986 | ||
dcfa0bc8 PE |
987 | dnl |
988 | dnl Check for "unusual" flags to pass to the compiler while building. | |
989 | dnl | |
990 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
991 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
992 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
993 | dnl Somehow this same set of flags must be passed when [re]building | |
994 | dnl libgcc. | |
995 | dnl --disable-cxx-flags passes nothing. | |
a9ab8db1 JM |
996 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html |
997 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
998 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 999 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
1000 | dnl If "default flags" is an empty string (or "none"), the effect is |
1001 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
1002 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
1003 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
1004 | AC_ARG_ENABLE(cxx-flags, | |
1005 | changequote(<<, >>)dnl | |
1006 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
1007 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
1008 | changequote([, ])dnl | |
1009 | [case "x$enableval" in | |
5780a46b | 1010 | xyes) |
8b8ab21c | 1011 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
5780a46b | 1012 | xno|x) |
8b8ab21c | 1013 | enable_cxx_flags='' ;; |
5780a46b | 1014 | *) |
8b8ab21c | 1015 | enable_cxx_flags="$enableval" ;; |
dcfa0bc8 | 1016 | esac], |
5780a46b BK |
1017 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
1018 | ||
32a4595e | 1019 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
1020 | if test "$enable_cxx_flags" = "none"; then |
1021 | enable_cxx_flags=''; | |
1022 | fi | |
1023 | ||
32a4595e PE |
1024 | dnl Run through flags (either default or command-line) and set anything |
1025 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
1026 | if test -n "$enable_cxx_flags"; then |
1027 | for f in $enable_cxx_flags; do | |
1028 | case "$f" in | |
991a40fc | 1029 | -fhonor-std) ;; |
dcfa0bc8 PE |
1030 | -*) ;; |
1031 | *) # and we're trying to pass /what/ exactly? | |
1032 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
1033 | esac | |
1034 | done | |
1035 | fi | |
1036 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
1037 | AC_SUBST(EXTRA_CXX_FLAGS) | |
1038 | ]) | |
1039 | ||
1040 | ||
0214010c BK |
1041 | dnl |
1042 | dnl Check for which locale library to use: gnu or generic. | |
1043 | dnl | |
1044 | dnl GLIBCPP_ENABLE_CLOCALE | |
1045 | dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends | |
1046 | dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends | |
1047 | dnl | |
1048 | dnl default is generic | |
1049 | dnl | |
1050 | AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [ | |
1051 | AC_MSG_CHECKING([for clocale to use]) | |
1052 | AC_ARG_ENABLE(clocale, | |
1053 | [ --enable-clocale enable model for target locale package. | |
1054 | --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic] | |
1055 | ], | |
1056 | if test x$enable_clocale = xno; then | |
1057 | enable_clocale=generic | |
1058 | fi, | |
1059 | enable_clocale=generic) | |
1060 | ||
1061 | enable_clocale_flag=$enable_clocale | |
1062 | ||
1063 | dnl Check if a valid locale package | |
1064 | case x${enable_clocale_flag} in | |
1065 | xgnu) | |
1066 | CLOCALE_H=config/c_locale_gnu.h | |
1067 | CLOCALE_CC=config/c_locale_gnu.cc | |
1068 | AC_MSG_RESULT(gnu) | |
1069 | ;; | |
1070 | xgeneric) | |
1071 | CLOCALE_H=config/c_locale_generic.h | |
1072 | CLOCALE_CC=config/c_locale_generic.cc | |
1073 | AC_MSG_RESULT(generic) | |
1074 | ;; | |
1075 | *) | |
1076 | echo "$enable_clocale is an unknown locale package" 1>&2 | |
1077 | exit 1 | |
1078 | ;; | |
1079 | esac | |
1080 | ||
1081 | AC_LINK_FILES($CLOCALE_H, include/bits/c++locale.h) | |
1082 | AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc) | |
1083 | ]) | |
1084 | ||
1085 | ||
b2dad0e3 | 1086 | dnl |
8bd636c5 | 1087 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1088 | dnl |
1089 | dnl GLIBCPP_ENABLE_CSTDIO | |
1090 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1091 | dnl | |
8e2d9424 | 1092 | dnl default is stdio |
b2dad0e3 BK |
1093 | dnl |
1094 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1095 | AC_MSG_CHECKING([for cstdio to use]) | |
1096 | AC_ARG_ENABLE(cstdio, | |
36e40658 BK |
1097 | [ --enable-cstdio enable stdio for target io package. |
1098 | --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] | |
1099 | ], | |
b2dad0e3 | 1100 | if test x$enable_cstdio = xno; then |
8e2d9424 | 1101 | enable_cstdio=stdio |
b2dad0e3 | 1102 | fi, |
8e2d9424 | 1103 | enable_cstdio=stdio) |
b2dad0e3 BK |
1104 | |
1105 | enable_cstdio_flag=$enable_cstdio | |
1106 | ||
8b8ab21c | 1107 | dnl Check if a valid I/O package |
b2dad0e3 | 1108 | case x${enable_cstdio_flag} in |
e26cb7ab | 1109 | xlibio) |
dd75251f | 1110 | CSTDIO_H=config/c_io_libio.h |
c0a26060 BK |
1111 | BASIC_FILE_H=config/basic_file_libio.h |
1112 | BASIC_FILE_CC=config/basic_file_libio.cc | |
dd75251f BK |
1113 | AC_MSG_RESULT(libio) |
1114 | ||
1115 | # see if we are on a system with libio native (ie, linux) | |
1116 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1117 | ||
1118 | # Need to check and see what version of glibc is being used. If | |
1119 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1120 | # compile most of libio for linux systems. | |
1121 | if test x$has_libio = x"yes"; then | |
1122 | case "$target" in | |
1123 | *-*-linux*) | |
8b8ab21c BK |
1124 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1125 | AC_EGREP_CPP([ok], [ | |
1126 | #include <features.h> | |
1127 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1128 | ok | |
1129 | #endif | |
1130 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1131 | AC_MSG_RESULT($glibc_satisfactory) | |
1132 | ;; | |
dd75251f BK |
1133 | esac |
1134 | ||
8b8ab21c | 1135 | # XXX at the moment, admit defeat and force the recompilation |
f133a43e | 1136 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
8b8ab21c BK |
1137 | glibc_satisfactory=no |
1138 | ||
1139 | if test x$glibc_satisfactory = x"yes"; then | |
1140 | need_libio=no | |
8b8ab21c BK |
1141 | need_wlibio=no |
1142 | else | |
1143 | need_libio=yes | |
8b8ab21c BK |
1144 | # bkoz XXX need to add checks to enable this |
1145 | # pme XXX here's a first pass at such a check | |
1146 | if test x$enable_c_mbchar != xno; then | |
1147 | need_wlibio=yes | |
1148 | else | |
1149 | need_wlibio=no | |
1150 | fi | |
1151 | fi | |
dd75251f | 1152 | |
dd75251f | 1153 | else |
e7140677 | 1154 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
8b8ab21c | 1155 | need_libio=yes |
8b8ab21c BK |
1156 | # bkoz XXX need to add checks to enable this |
1157 | # pme XXX here's a first pass at such a check | |
1158 | if test x$enable_c_mbchar != xno; then | |
1159 | need_wlibio=yes | |
1160 | else | |
1161 | need_wlibio=no | |
1162 | fi | |
dd75251f BK |
1163 | fi |
1164 | ;; | |
e26cb7ab MM |
1165 | xstdio | x | xno | xnone | xyes) |
1166 | # default | |
9717c75c | 1167 | CSTDIO_H=config/c_io_stdio.h |
c0a26060 BK |
1168 | BASIC_FILE_H=config/basic_file_stdio.h |
1169 | BASIC_FILE_CC=config/basic_file_stdio.cc | |
9717c75c BK |
1170 | AC_MSG_RESULT(stdio) |
1171 | ||
e26cb7ab | 1172 | # We're not using stdio. |
dd75251f | 1173 | need_libio=no |
e26cb7ab | 1174 | need_wlibio=no |
dd75251f BK |
1175 | ;; |
1176 | *) | |
1177 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1178 | exit 1 | |
1179 | ;; | |
b2dad0e3 | 1180 | esac |
5e53dba6 | 1181 | AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h) |
c0a26060 BK |
1182 | AC_LINK_FILES($BASIC_FILE_H, include/bits/basic_file_model.h) |
1183 | AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc) | |
8901ac21 BK |
1184 | |
1185 | # 2000-08-04 bkoz hack | |
1186 | CCODECVT_C=config/c_io_libio_codecvt.c | |
1187 | AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) | |
1188 | # 2000-08-04 bkoz hack | |
8b8ab21c | 1189 | |
85a011b0 PE |
1190 | AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, |
1191 | test "$need_libio" = yes || test "$need_wlibio" = yes) | |
b2dad0e3 | 1192 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
20427c6b | 1193 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
c4d3f801 | 1194 | if test "$need_libio" = yes || test "$need_wlibio" = yes; then |
4c07386b | 1195 | libio_la=../libio/libio.la |
c4d3f801 | 1196 | else |
4c07386b | 1197 | libio_la= |
c4d3f801 MM |
1198 | fi |
1199 | AC_SUBST(libio_la) | |
b2dad0e3 BK |
1200 | ]) |
1201 | ||
1202 | ||
1203 | dnl | |
8bd636c5 | 1204 | dnl Check for which threading library to use. |
b2dad0e3 BK |
1205 | dnl |
1206 | dnl GLIBCPP_ENABLE_THREADS | |
1207 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
1208 | dnl | |
8b8ab21c BK |
1209 | dnl Default is no threads, which also disables _IO_MTSAFE_IO in |
1210 | dnl libio. Any actual thread package will enable it. | |
b2dad0e3 BK |
1211 | dnl |
1212 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
1213 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
1214 | dnl Efforts should be made to keep this in sync. | |
1215 | AC_MSG_CHECKING([for threads package to use]) | |
1216 | AC_ARG_ENABLE(threads, | |
36e40658 BK |
1217 | [ --enable-threads enable thread usage for target GCC. |
1218 | --enable-threads=LIB use LIB thread package for target GCC. [default=no] | |
1219 | ], | |
b2dad0e3 BK |
1220 | if test x$enable_threads = xno; then |
1221 | enable_threads='' | |
1222 | fi, | |
1223 | enable_threads='') | |
1224 | ||
1225 | enable_threads_flag=$enable_threads | |
1226 | ||
1227 | dnl Check if a valid thread package | |
1228 | case x${enable_threads_flag} in | |
8b8ab21c BK |
1229 | x | xno | xnone) |
1230 | # No threads | |
1231 | target_thread_file='single' | |
1232 | ;; | |
1233 | xyes) | |
1234 | # default | |
d0941a31 | 1235 | target_thread_file='posix' |
8b8ab21c BK |
1236 | ;; |
1237 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
1238 | xsolaris | xwin32 | xdce | xvxworks) | |
1239 | target_thread_file=$enable_threads_flag | |
1240 | ;; | |
1241 | *) | |
1242 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1243 | exit 1 | |
1244 | ;; | |
b2dad0e3 BK |
1245 | esac |
1246 | ||
1247 | dnl Check for thread package actually supported in libstdc++ | |
e974e9cc | 1248 | THREADH= |
b2dad0e3 BK |
1249 | case "$target_thread_file" in |
1250 | no | none | single) | |
e974e9cc | 1251 | THREADH=threads-no.h |
b2dad0e3 BK |
1252 | ;; |
1253 | posix | pthreads) | |
e974e9cc | 1254 | THREADH=threads-posix.h |
b2dad0e3 BK |
1255 | ;; |
1256 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
1257 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
1258 | ;; | |
1259 | *) | |
d0941a31 | 1260 | AC_MSG_ERROR($THREADS is an unsupported/unknown thread package) |
b2dad0e3 BK |
1261 | ;; |
1262 | esac | |
e974e9cc | 1263 | AC_MSG_RESULT($THREADH) |
b2dad0e3 | 1264 | |
5e53dba6 | 1265 | AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h) |
8b8ab21c BK |
1266 | if test $THREADH != threads-no.h; then |
1267 | AC_DEFINE(_GLIBCPP_USE_THREADS) | |
1268 | fi | |
b2dad0e3 BK |
1269 | ]) |
1270 | ||
1271 | ||
52a11cbf RH |
1272 | dnl |
1273 | dnl Check for exception handling support. If an explicit enable/disable | |
1274 | dnl sjlj exceptions is given, we don't have to detect. Otherwise the | |
1275 | dnl target may or may not support call frame exceptions. | |
1276 | dnl | |
1277 | dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS | |
1278 | dnl --enable-sjlj-exceptions forces the use of builtin setjmp. | |
1279 | dnl --disable-sjlj-exceptions forces the use of call frame unwinding. | |
1280 | dnl | |
1281 | dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it. | |
1282 | dnl | |
1283 | AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [ | |
1284 | AC_MSG_CHECKING([for exception model to use]) | |
1285 | AC_LANG_SAVE | |
1286 | AC_LANG_CPLUSPLUS | |
1287 | AC_ARG_ENABLE(sjlj-exceptions, | |
1288 | [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions], | |
1289 | [:], | |
1290 | [dnl Botheration. Now we've got to detect the exception model. | |
1291 | dnl Link tests against libgcc.a are problematic since -- at least | |
1292 | dnl as of this writing -- we've not been given proper -L bits for | |
1293 | dnl single-tree newlib and libgloss. | |
1294 | dnl | |
1295 | dnl This is what AC_TRY_COMPILE would do if it didn't delete the | |
1296 | dnl conftest files before we got a change to grep them first. | |
1297 | cat > conftest.$ac_ext << EOF | |
1298 | [#]line __oline__ "configure" | |
1299 | struct S { ~S(); }; | |
1300 | void bar(); | |
1301 | void foo() | |
1302 | { | |
1303 | S s; | |
1304 | bar(); | |
1305 | } | |
1306 | EOF | |
1307 | old_CXXFLAGS="$CXXFLAGS" | |
1308 | CXXFLAGS=-S | |
1309 | if AC_TRY_EVAL(ac_compile); then | |
1310 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then | |
1311 | enable_sjlj_exceptions=yes | |
1312 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then | |
1313 | enable_sjlj_exceptions=no | |
1314 | fi | |
1315 | fi | |
1316 | CXXFLAGS="$old_CXXFLAGS" | |
1317 | rm -f conftest*]) | |
1318 | if test x$enable_sjlj_exceptions = xyes; then | |
1319 | AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1, | |
1320 | [Define if the compiler is configured for setjmp/longjmp exceptions.]) | |
1321 | ac_exception_model_name=sjlj | |
1322 | elif test x$enable_sjlj_exceptions = xno; then | |
1323 | ac_exception_model_name="call frame" | |
1324 | else | |
1325 | AC_MSG_ERROR([unable to detect exception model]) | |
1326 | fi | |
1327 | AC_LANG_RESTORE | |
1328 | AC_MSG_RESULT($ac_exception_model_name) | |
1329 | ]) | |
1330 | ||
1331 | ||
b2dad0e3 | 1332 | dnl |
8bd636c5 | 1333 | dnl Check for template specializations for the 'long long' type extension. |
b2dad0e3 BK |
1334 | dnl |
1335 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1336 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1337 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1338 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1339 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1340 | dnl defaults to `no'. | |
0137be2d | 1341 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. |
b2dad0e3 BK |
1342 | dnl |
1343 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1344 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1345 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
209fe19b | 1346 | |
b2dad0e3 BK |
1347 | AC_ARG_ENABLE(long-long, |
1348 | changequote(<<, >>)dnl | |
d0d88ce3 | 1349 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], |
b2dad0e3 BK |
1350 | changequote([, ])dnl |
1351 | [case "$enableval" in | |
1352 | yes) enable_long_long=yes ;; | |
1353 | no) enable_long_long=no ;; | |
1354 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1355 | esac], | |
1356 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
f4c79fef BK |
1357 | |
1358 | # Allow use of os-dependent settings, so that macros that turn on | |
1359 | # C99 capabilities can be defined and used in a consistent way. | |
1360 | OS_INC_PATH=${srcdir}/$os_include_dir | |
1361 | ac_test_CFLAGS="${CFLAGS+set}" | |
1362 | ac_save_CFLAGS="$CFLAGS" | |
1363 | CFLAGS="-I$OS_INC_PATH" | |
209fe19b | 1364 | |
f4c79fef | 1365 | # Check for the existence of functions used if long long is enabled. |
209fe19b BK |
1366 | AC_CHECK_FUNC(strtoll,,ac_strtoll=no) |
1367 | AC_CHECK_FUNC(strtoull,,ac_strtoull=no) | |
1368 | ||
f4c79fef BK |
1369 | # Check for lldiv_t, et. al. |
1370 | AC_MSG_CHECKING([for lldiv_t declaration]) | |
1371 | AC_CACHE_VAL(glibcpp_lldiv_t_use, [ | |
1372 | AC_TRY_COMPILE([#include <bits/os_defines.h> | |
4c07386b | 1373 | #include <stdlib.h>], |
f4c79fef BK |
1374 | [ lldiv_t mydivt;], |
1375 | [glibcpp_lldiv_t_use=yes], [glibcpp_lldiv_t_use=no]) | |
1376 | ]) | |
1377 | AC_MSG_RESULT($glibcpp_lldiv_t_use) | |
1378 | if test x$glibcpp_lldiv_t_use = x"yes"; then | |
a767e383 | 1379 | AC_DEFINE(HAVE_LLDIV_T) |
f4c79fef BK |
1380 | fi |
1381 | ||
3840fa2a | 1382 | AC_MSG_CHECKING([for enabled long long]) |
209fe19b | 1383 | if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then |
3840fa2a BK |
1384 | enable_long_long=no; |
1385 | fi; | |
d0d88ce3 | 1386 | AC_MSG_RESULT($enable_long_long) |
3840fa2a | 1387 | |
f4c79fef | 1388 | # Option parsed, now set things appropriately |
dcc41852 BK |
1389 | if test x"$enable_long_long" = xyes; then |
1390 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1391 | fi | |
4c07386b | 1392 | |
f4c79fef BK |
1393 | # Reset CFLAGS |
1394 | CFLAGS="$ac_save_CFLAGS" | |
b2dad0e3 BK |
1395 | ]) |
1396 | ||
1397 | ||
99246c90 | 1398 | dnl |
e3123ab3 BK |
1399 | dnl Check for what kind of C headers to use. |
1400 | dnl | |
1401 | dnl GLIBCPP_ENABLE_CHEADERS | |
1402 | dnl --enable-cheaders= [does stuff]. | |
1403 | dnl --disable-cheaders [does not do anything, really]. | |
1404 | dnl + This will eventually need to be 'c_shadow' by default. | |
1405 | dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] | |
1406 | dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. | |
1407 | dnl If ommitted, it defaults to `c_std'. | |
1408 | AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl | |
1409 | define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl | |
1410 | AC_MSG_CHECKING([for c header strategy to use]) | |
1411 | AC_ARG_ENABLE(cheaders, | |
99246c90 | 1412 | changequote(<<, >>)dnl |
e3123ab3 BK |
1413 | << --enable-cheaders construct "C" header files for |
1414 | g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], | |
5780a46b BK |
1415 | changequote([, ]) |
1416 | [case "$enableval" in | |
e3123ab3 | 1417 | c) |
9b8fd32c | 1418 | enable_cheaders=c |
8b8ab21c | 1419 | ;; |
e3123ab3 | 1420 | c_std) |
9b8fd32c | 1421 | enable_cheaders=c_std |
8b8ab21c | 1422 | ;; |
e3123ab3 | 1423 | c_shadow) |
9b8fd32c | 1424 | enable_cheaders=c_shadow |
e3123ab3 BK |
1425 | ;; |
1426 | *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) | |
8b8ab21c | 1427 | ;; |
5780a46b | 1428 | esac], |
e3123ab3 BK |
1429 | enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) |
1430 | AC_MSG_RESULT($enable_cheaders) | |
5780a46b BK |
1431 | |
1432 | dnl Option parsed, now set things appropriately | |
e3123ab3 BK |
1433 | case "$enable_cheaders" in |
1434 | c_shadow) | |
8b8ab21c | 1435 | CSHADOW_FLAGS="-fno-builtin" |
e3123ab3 | 1436 | C_INCLUDE_DIR='${top_srcdir}/include/c_shadow' |
0517cb99 | 1437 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
8b8ab21c | 1438 | ;; |
e3123ab3 BK |
1439 | c_std) |
1440 | CSHADOW_FLAGS="" | |
1441 | C_INCLUDE_DIR='${top_srcdir}/include/c_std' | |
1442 | ;; | |
1443 | c) | |
8b8ab21c BK |
1444 | CSHADOW_FLAGS="" |
1445 | C_INCLUDE_DIR='${top_srcdir}/include/c' | |
99246c90 | 1446 | ;; |
5780a46b | 1447 | esac |
5b80666b | 1448 | |
e466dc8a BK |
1449 | AC_SUBST(CSHADOW_FLAGS) |
1450 | AC_SUBST(C_INCLUDE_DIR) | |
e3123ab3 | 1451 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) |
99246c90 | 1452 | ]) |
b2dad0e3 | 1453 | |
8b8ab21c BK |
1454 | |
1455 | dnl | |
1456 | dnl Check for wide character support. Has the same effect as the option | |
1457 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1458 | dnl | |
1459 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1460 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1461 | dnl --disable-c-mbchar doesn't. | |
1462 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1463 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1464 | dnl defaults to `no'. | |
1465 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1466 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1467 | AC_ARG_ENABLE(c-mbchar, | |
1468 | changequote(<<, >>)dnl | |
1469 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1470 | changequote([, ])dnl | |
1471 | [case "$enableval" in | |
1472 | yes) enable_c_mbchar=yes ;; | |
1473 | no) enable_c_mbchar=no ;; | |
1474 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1475 | esac], | |
1476 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1477 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1478 | ]) | |
1479 | ||
1480 | ||
e466dc8a BK |
1481 | dnl |
1482 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1483 | dnl | |
1484 | dnl GLIBCPP_INCLUDE_DIR | |
1485 | dnl C_INCLUDE_DIR | |
1486 | dnl TOPLEVEL_INCLUDES | |
1487 | dnl LIBMATH_INCLUDES | |
1488 | dnl LIBSUPCXX_INCLUDES | |
1489 | dnl LIBIO_INCLUDES | |
1490 | dnl CSHADOW_INCLUDES | |
1491 | dnl | |
1492 | dnl GLIBCPP_EXPORT_INCLUDE | |
1493 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ | |
1494 | # Root level of the include sources. | |
1495 | GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' | |
1496 | ||
1497 | # Can either use include/c or include/c_std to grab "C" headers. This | |
1498 | # variable is set to the include directory currently in use. | |
e3123ab3 | 1499 | # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_CHEADERS |
e466dc8a | 1500 | |
9f935979 BK |
1501 | # Passed down for canadian crosses. |
1502 | if test x"$CANADIAN" = xyes; then | |
1503 | TOPLEVEL_INCLUDES='-I$(includedir)' | |
1504 | fi | |
e466dc8a BK |
1505 | |
1506 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1507 | ||
1508 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1509 | ||
1510 | #if GLIBCPP_NEED_LIBIO | |
1511 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1512 | #else | |
1513 | #LIBIO_INCLUDES='-I$(top_srcdir)/libio' | |
1514 | #endif | |
1515 | ||
1516 | #if GLIBCPP_USE_CSHADOW | |
1517 | # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ | |
1518 | # -I$(top_blddir)/cshadow' | |
1519 | #else | |
a40ba78e | 1520 | CSTD_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' |
e466dc8a BK |
1521 | #endif |
1522 | ||
1523 | # Now, export this to all the little Makefiles.... | |
1524 | AC_SUBST(GLIBCPP_INCLUDE_DIR) | |
1525 | AC_SUBST(TOPLEVEL_INCLUDES) | |
1526 | AC_SUBST(LIBMATH_INCLUDES) | |
1527 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
1528 | AC_SUBST(LIBIO_INCLUDES) | |
a40ba78e | 1529 | AC_SUBST(CSTD_INCLUDES) |
e466dc8a BK |
1530 | ]) |
1531 | ||
1532 | ||
1533 | dnl | |
1534 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1535 | dnl | |
1536 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1537 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1538 | # uncomment the lines below and make, everything else is ready to go... | |
1539 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1540 | OPTIMIZE_CXXFLAGS= | |
1541 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1542 | ||
1543 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1544 | AC_SUBST(WARN_FLAGS) | |
1545 | ]) | |
1546 | ||
72ed2836 | 1547 | dnl |
43ba4a58 BK |
1548 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
1549 | dnl calculates gxx_install_dir | |
72ed2836 BK |
1550 | dnl exports glibcpp_toolexecdir |
1551 | dnl exports glibcpp_toolexeclibdir | |
1552 | dnl | |
1553 | dnl Assumes cross_compiling bits already done, and with_cross_host in | |
1554 | dnl particular | |
43ba4a58 | 1555 | dnl |
72ed2836 | 1556 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
43ba4a58 BK |
1557 | AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [ |
1558 | ||
72ed2836 BK |
1559 | glibcpp_toolexecdir=no |
1560 | glibcpp_toolexeclibdir=no | |
1561 | ||
43ba4a58 BK |
1562 | AC_MSG_CHECKING([for interface version number]) |
1563 | libstdcxx_interface=$INTERFACE | |
1564 | AC_MSG_RESULT($libstdcxx_interface) | |
1565 | ||
1566 | # Process the option --with-gxx-include-dir=<path to include-files directory> | |
1567 | AC_MSG_CHECKING([for --with-gxx-include-dir]) | |
1568 | AC_ARG_WITH(gxx-include-dir, | |
1569 | [ --with-gxx-include-dir the installation directory for include files], | |
1570 | [case "${withval}" in | |
1571 | yes) | |
1572 | AC_MSG_ERROR(Missing directory for --with-gxx-include-dir) | |
1573 | gxx_include_dir=no | |
1574 | ;; | |
1575 | no) | |
1576 | gxx_include_dir=no | |
1577 | ;; | |
1578 | *) | |
1579 | gxx_include_dir=${withval} | |
1580 | ;; | |
1581 | esac], [gxx_include_dir=no]) | |
1582 | AC_MSG_RESULT($gxx_include_dir) | |
1583 | ||
1584 | # Process the option "--enable-version-specific-runtime-libs" | |
1585 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
1586 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
1587 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
1588 | [ version_specific_libs=yes | |
1589 | # Need the gcc compiler version to know where to install libraries | |
1590 | # and header files if --enable-version-specific-runtime-libs option | |
1591 | # is selected. | |
1592 | changequote(,)dnl | |
72ed2836 BK |
1593 | gcc_version_trigger=${srcdir}/../gcc/version.c |
1594 | gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` | |
1595 | gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` | |
1596 | gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++ | |
1597 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1598 | glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version} | |
43ba4a58 | 1599 | changequote([,])dnl |
43ba4a58 BK |
1600 | ],version_specific_libs=no) |
1601 | AC_MSG_RESULT($version_specific_libs) | |
1602 | ||
72ed2836 | 1603 | # Default case for install directory for include files. |
43ba4a58 | 1604 | if test x"$version_specific_libs" = x"no" \ |
c53cf0fe | 1605 | && test x"$gxx_include_dir" = x"no"; then |
72ed2836 BK |
1606 | gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface} |
1607 | fi | |
1608 | ||
1609 | # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir | |
1610 | # Install a library built with a cross compiler in tooldir, not libdir. | |
1611 | if test x"$glibcpp_toolexecdir" = x"no"; then | |
729338bb | 1612 | if test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then |
72ed2836 BK |
1613 | glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)' |
1614 | glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)' | |
1615 | else | |
1616 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1617 | glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)' | |
1618 | fi | |
43ba4a58 | 1619 | fi |
72ed2836 BK |
1620 | |
1621 | AC_MSG_CHECKING([for install location]) | |
43ba4a58 | 1622 | AC_MSG_RESULT($gxx_include_dir) |
72ed2836 | 1623 | |
43ba4a58 | 1624 | AC_SUBST(gxx_include_dir) |
72ed2836 BK |
1625 | AC_SUBST(glibcpp_toolexecdir) |
1626 | AC_SUBST(glibcpp_toolexeclibdir) | |
43ba4a58 BK |
1627 | ]) |
1628 | ||
1629 | ||
af9fe0d1 BK |
1630 | # Check whether LC_MESSAGES is available in <locale.h>. |
1631 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1632 | # | |
1633 | # This file file be copied and used freely without restrictions. It can | |
1634 | # be used in projects which are not available under the GNU Public License | |
1635 | # but which still want to provide support for the GNU gettext functionality. | |
1636 | # Please note that the actual code is *not* freely available. | |
1637 | ||
1638 | # serial 1 | |
1639 | ||
819004bb BK |
1640 | AC_DEFUN(AC_LC_MESSAGES, [ |
1641 | AC_CHECK_HEADER(locale.h, [ | |
af9fe0d1 BK |
1642 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, |
1643 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1644 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1645 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1646 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1647 | fi | |
819004bb BK |
1648 | ]) |
1649 | ]) | |
af9fe0d1 BK |
1650 | |
1651 | ||
1652 | # Check for functions in math library. | |
1653 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1654 | # | |
1655 | # This file can be copied and used freely without restrictions. It can | |
1656 | # be used in projects which are not available under the GNU Public License | |
1657 | # but which still want to provide support for the GNU gettext functionality. | |
1658 | # Please note that the actual code is *not* freely available. | |
1659 | ||
1660 | # serial 1 | |
1661 | ||
1662 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1663 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1664 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1665 | AC_SUBST(LIBMATHOBJS)dnl | |
1666 | ]) | |
1667 | ||
1668 | ||
1669 | # Check for string functions. | |
1670 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1671 | # | |
1672 | # This file can be copied and used freely without restrictions. It can | |
1673 | # be used in projects which are not available under the GNU Public License | |
1674 | # but which still want to provide support for the GNU gettext functionality. | |
1675 | # Please note that the actual code is *not* freely available. | |
1676 | ||
1677 | # serial 1 | |
1678 | ||
1679 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1680 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1681 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1682 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1683 | ]) | |
b2dad0e3 | 1684 | |
29bd52c8 PE |
1685 | |
1686 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1687 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1688 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1689 | dnl which cannot be handled by other versions of make. The variable |
1690 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1691 | dnl the empty string otherwise. | |
1692 | dnl | |
1693 | dnl Here is an example of its use: | |
1694 | dnl | |
1695 | dnl Makefile.in might contain: | |
1696 | dnl | |
1697 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1698 | dnl $(DEPEND): | |
1699 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1700 | dnl | |
1701 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1702 | dnl @ifGNUmake@ include $(DEPEND) | |
1703 | dnl @ifGNUmake@ endif | |
1704 | dnl | |
1705 | dnl Then configure.in would normally contain: | |
1706 | dnl | |
1707 | dnl CHECK_GNU_MAKE() | |
1708 | dnl AC_OUTPUT(Makefile) | |
1709 | dnl | |
1710 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1711 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1712 | dnl | |
1713 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1714 | dnl mv Makefile GNUmakefile | |
1715 | dnl echo .DEFAULT: > Makefile ; | |
1716 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1717 | dnl fi | |
1718 | dnl | |
1719 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1720 | dnl exists, then the other make wraps the GNU make. | |
1721 | dnl | |
1722 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1723 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1724 | dnl |
1725 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1726 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1727 | dnl #### conditional's subshell (" --version" is not a command), using a |
1728 | dnl #### different option to grep(1). | |
29bd52c8 | 1729 | dnl #### -pme |
57d278be MS |
1730 | dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not |
1731 | dnl #### ${MAKE:-make}). | |
1732 | dnl #### -msokolov | |
29bd52c8 PE |
1733 | AC_DEFUN( |
1734 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1735 | _cv_gnu_make_command='' ; | |
1736 | dnl Search all the common names for GNU make | |
57d278be | 1737 | for a in "${MAKE-make}" make gmake gnumake ; do |
626d8f0a | 1738 | if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) |
79f5e38e | 1739 | then |
29bd52c8 PE |
1740 | _cv_gnu_make_command=$a ; |
1741 | break; | |
1742 | fi | |
1743 | done ; | |
1744 | ) ; | |
1745 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1746 | dnl string, '#' otherwise | |
1747 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1748 | ifGNUmake='' ; | |
1749 | else | |
1750 | ifGNUmake='#' ; | |
1751 | fi | |
1752 | AC_SUBST(ifGNUmake) | |
1753 | ]) | |
1754 | ||
3df64633 AO |
1755 | sinclude(../libtool.m4) |
1756 | dnl The lines below arrange for aclocal not to bring an installed | |
1757 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1758 | dnl add a definition of LIBTOOL to Makefile.in. | |
1759 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1760 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1761 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1762 | AC_DEFUN([AC_PROG_LD]) | |
1763 | ]) | |
7f586614 | 1764 | |
9a200b0a | 1765 | |
b2dad0e3 BK |
1766 | # Do all the work for Automake. This macro actually does too much -- |
1767 | # some checks are only needed if your package does certain things. | |
1768 | # But this isn't really a big deal. | |
1769 | ||
1770 | # serial 1 | |
1771 | ||
1772 | dnl Usage: | |
1773 | dnl AM_INIT_AUTOMAKE(package,version, [no-define]) | |
1774 | ||
1775 | AC_DEFUN(AM_INIT_AUTOMAKE, | |
1776 | [AC_REQUIRE([AC_PROG_INSTALL]) | |
1777 | PACKAGE=[$1] | |
1778 | AC_SUBST(PACKAGE) | |
1779 | VERSION=[$2] | |
1780 | AC_SUBST(VERSION) | |
1781 | dnl test to see if srcdir already configured | |
1782 | if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then | |
1783 | AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) | |
1784 | fi | |
1785 | ifelse([$3],, | |
1786 | AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) | |
1787 | AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])) | |
1788 | AC_REQUIRE([AM_SANITY_CHECK]) | |
1789 | AC_REQUIRE([AC_ARG_PROGRAM]) | |
1790 | dnl FIXME This is truly gross. | |
1791 | missing_dir=`cd $ac_aux_dir && pwd` | |
1792 | AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) | |
1793 | AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) | |
1794 | AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) | |
1795 | AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) | |
1796 | AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) | |
1797 | AC_REQUIRE([AC_PROG_MAKE_SET])]) | |
1798 | ||
1799 | # | |
1800 | # Check to make sure that the build environment is sane. | |
1801 | # | |
1802 | ||
1803 | AC_DEFUN(AM_SANITY_CHECK, | |
1804 | [AC_MSG_CHECKING([whether build environment is sane]) | |
1805 | # Just in case | |
1806 | sleep 1 | |
1807 | echo timestamp > conftestfile | |
1808 | # Do `set' in a subshell so we don't clobber the current shell's | |
1809 | # arguments. Must try -L first in case configure is actually a | |
1810 | # symlink; some systems play weird games with the mod time of symlinks | |
1811 | # (eg FreeBSD returns the mod time of the symlink's containing | |
1812 | # directory). | |
1813 | if ( | |
1814 | set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null` | |
1815 | if test "[$]*" = "X"; then | |
1816 | # -L didn't work. | |
1817 | set X `ls -t $srcdir/configure conftestfile` | |
1818 | fi | |
1819 | if test "[$]*" != "X $srcdir/configure conftestfile" \ | |
1820 | && test "[$]*" != "X conftestfile $srcdir/configure"; then | |
1821 | ||
1822 | # If neither matched, then we have a broken ls. This can happen | |
1823 | # if, for instance, CONFIG_SHELL is bash and it inherits a | |
1824 | # broken ls alias from the environment. This has actually | |
1825 | # happened. Such a system could not be considered "sane". | |
1826 | AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken | |
1827 | alias in your environment]) | |
1828 | fi | |
1829 | ||
1830 | test "[$]2" = conftestfile | |
1831 | ) | |
1832 | then | |
1833 | # Ok. | |
1834 | : | |
1835 | else | |
1836 | AC_MSG_ERROR([newly created file is older than distributed files! | |
1837 | Check your system clock]) | |
1838 | fi | |
1839 | rm -f conftest* | |
1840 | AC_MSG_RESULT(yes)]) | |
1841 | ||
1842 | dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) | |
1843 | dnl The program must properly implement --version. | |
1844 | AC_DEFUN(AM_MISSING_PROG, | |
1845 | [AC_MSG_CHECKING(for working $2) | |
1846 | # Run test in a subshell; some versions of sh will print an error if | |
1847 | # an executable is not found, even if stderr is redirected. | |
1848 | # Redirect stdin to placate older versions of autoconf. Sigh. | |
1849 | if ($2 --version) < /dev/null > /dev/null 2>&1; then | |
1850 | $1=$2 | |
1851 | AC_MSG_RESULT(found) | |
1852 | else | |
1853 | $1="$3/missing $2" | |
1854 | AC_MSG_RESULT(missing) | |
1855 | fi | |
1856 | AC_SUBST($1)]) | |
1857 | ||
1858 | # Add --enable-maintainer-mode option to configure. | |
1859 | # From Jim Meyering | |
1860 | ||
1861 | # serial 1 | |
1862 | ||
1863 | AC_DEFUN(AM_MAINTAINER_MODE, | |
1864 | [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
1865 | dnl maintainer-mode is disabled by default | |
1866 | AC_ARG_ENABLE(maintainer-mode, | |
1867 | [ --enable-maintainer-mode enable make rules and dependencies not useful | |
1868 | (and sometimes confusing) to the casual installer], | |
1869 | USE_MAINTAINER_MODE=$enableval, | |
1870 | USE_MAINTAINER_MODE=no) | |
1871 | AC_MSG_RESULT($USE_MAINTAINER_MODE) | |
1872 | AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes) | |
1873 | MAINT=$MAINTAINER_MODE_TRUE | |
1874 | AC_SUBST(MAINT)dnl | |
1875 | ] | |
1876 | ) | |
1877 | ||
1878 | # Define a conditional. | |
1879 | ||
1880 | AC_DEFUN(AM_CONDITIONAL, | |
1881 | [AC_SUBST($1_TRUE) | |
1882 | AC_SUBST($1_FALSE) | |
1883 | if $2; then | |
1884 | $1_TRUE= | |
1885 | $1_FALSE='#' | |
1886 | else | |
1887 | $1_TRUE='#' | |
1888 | $1_FALSE= | |
1889 | fi]) | |
1890 | ||
b2dad0e3 BK |
1891 | # Like AC_CONFIG_HEADER, but automatically create stamp file. |
1892 | ||
1893 | AC_DEFUN(AM_CONFIG_HEADER, | |
1894 | [AC_PREREQ([2.12]) | |
1895 | AC_CONFIG_HEADER([$1]) | |
1896 | dnl When config.status generates a header, we must update the stamp-h file. | |
1897 | dnl This file resides in the same directory as the config header | |
1898 | dnl that is generated. We must strip everything past the first ":", | |
1899 | dnl and everything past the last "/". | |
1900 | AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl | |
1901 | ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, | |
1902 | <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, | |
1903 | <<am_indx=1 | |
1904 | for am_file in <<$1>>; do | |
1905 | case " <<$>>CONFIG_HEADERS " in | |
1906 | *" <<$>>am_file "*<<)>> | |
1907 | echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx | |
1908 | ;; | |
1909 | esac | |
1910 | am_indx=`expr "<<$>>am_indx" + 1` | |
1911 | done<<>>dnl>>) | |
1912 | changequote([,]))]) | |
1913 |