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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 ${enableval} for multilib option) ;; | |
27 | esac], [multilib=yes])dnl | |
28 | ||
29 | dnl We may get other options which we dont document: | |
30 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir | |
31 | if test "[$]{srcdir}" = "."; then | |
32 | if test "[$]{with_target_subdir}" != "."; then | |
33 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1" | |
34 | else | |
35 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}$1" | |
36 | fi | |
37 | else | |
38 | glibcpp_basedir="[$]{srcdir}/$1" | |
39 | fi | |
40 | AC_SUBST(glibcpp_basedir) | |
41 | ||
b2dad0e3 BK |
42 | AM_INIT_AUTOMAKE(libstdc++, 2.90.8) |
43 | ||
28861379 BK |
44 | # Never versions of autoconf add an underscore to these functions. |
45 | # Prevent future problems ... | |
46 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
47 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
48 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
49 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
5780a46b BK |
50 | |
51 | # AC_PROG_CC | |
52 | ||
b2dad0e3 BK |
53 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
54 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
55 | # are probably using a cross compiler, which will not be able to fully | |
56 | # link an executable. This should really be fixed in autoconf | |
57 | # itself. | |
58 | ||
59 | AC_DEFUN(LIB_AC_PROG_CC, | |
60 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
61 | dnl Fool anybody using AC_PROG_CC. | |
62 | AC_PROVIDE([AC_PROG_CC]) | |
63 | AC_CHECK_PROG(CC, gcc, gcc) | |
64 | if test -z "$CC"; then | |
65 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
66 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
67 | fi | |
68 | ||
69 | AC_PROG_CC_GNU | |
70 | ||
71 | if test $ac_cv_prog_gcc = yes; then | |
72 | GCC=yes | |
73 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
74 | dnl plays around with CFLAGS (such as to build both debugging and | |
75 | dnl normal versions of a library), tasteless as that idea is. | |
76 | ac_test_CFLAGS="${CFLAGS+set}" | |
77 | ac_save_CFLAGS="$CFLAGS" | |
78 | CFLAGS= | |
79 | AC_PROG_CC_G | |
80 | if test "$ac_test_CFLAGS" = set; then | |
81 | CFLAGS="$ac_save_CFLAGS" | |
82 | elif test $ac_cv_prog_cc_g = yes; then | |
83 | CFLAGS="-g -O2" | |
84 | else | |
85 | CFLAGS="-O2" | |
86 | fi | |
87 | else | |
88 | GCC= | |
89 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
90 | fi | |
91 | ]) | |
92 | ||
93 | LIB_AC_PROG_CC | |
94 | ||
5780a46b BK |
95 | # Can't just call these here as g++ requires libstc++ to be built.... |
96 | # AC_PROG_CXX | |
97 | ||
b2dad0e3 BK |
98 | # Likewise for AC_PROG_CXX. |
99 | AC_DEFUN(LIB_AC_PROG_CXX, | |
100 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
101 | dnl Fool anybody using AC_PROG_CXX. | |
102 | AC_PROVIDE([AC_PROG_CXX]) | |
de9aefe0 AO |
103 | # Use CXX_libstdcxx so that we do not cause CXX to be cached with the |
104 | # flags that come in CXX while configuring libstdc++. They're different | |
bb4127f8 MM |
105 | # from those used for all other target libraries. If CXX is set in |
106 | # the environment, respect that here. | |
107 | CXX_libstdcxx=$CXX | |
aa17a5f3 | 108 | AC_CHECK_PROGS(CXX_libstdcxx, $CCC c++ g++ gcc CC cxx cc++, gcc) |
de9aefe0 AO |
109 | CXX=$CXX_libstdcxx |
110 | AC_SUBST(CXX) | |
b2dad0e3 BK |
111 | test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) |
112 | ||
113 | AC_PROG_CXX_GNU | |
114 | ||
115 | if test $ac_cv_prog_gxx = yes; then | |
116 | GXX=yes | |
117 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
118 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
119 | dnl normal versions of a library), tasteless as that idea is. | |
120 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
121 | ac_save_CXXFLAGS="$CXXFLAGS" | |
122 | CXXFLAGS= | |
123 | AC_PROG_CXX_G | |
124 | if test "$ac_test_CXXFLAGS" = set; then | |
125 | CXXFLAGS="$ac_save_CXXFLAGS" | |
126 | elif test $ac_cv_prog_cxx_g = yes; then | |
127 | CXXFLAGS="-g -O2" | |
128 | else | |
129 | CXXFLAGS="-O2" | |
130 | fi | |
131 | else | |
132 | GXX= | |
133 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
134 | fi | |
135 | ]) | |
136 | ||
137 | LIB_AC_PROG_CXX | |
138 | ||
5780a46b BK |
139 | AC_CHECK_TOOL(AS, as) |
140 | AC_CHECK_TOOL(AR, ar) | |
141 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
142 | ||
143 | AC_PROG_INSTALL | |
b2dad0e3 | 144 | |
5780a46b | 145 | AM_MAINTAINER_MODE |
b2dad0e3 | 146 | |
5780a46b BK |
147 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
148 | # at least currently, we never actually build a program, so we never | |
149 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
150 | # fails, because we are probably configuring with a cross compiler | |
151 | # which cant create executables. So we include AC_EXEEXT to keep | |
152 | # automake happy, but we dont execute it, since we dont care about | |
153 | # the result. | |
154 | if false; then | |
155 | AC_EXEEXT | |
156 | fi | |
b2dad0e3 | 157 | |
5780a46b | 158 | # configure.host sets the following important variables |
8b8ab21c BK |
159 | # glibcpp_cflags - host specific C compiler flags |
160 | # glibcpp_cxxflags - host specific C++ compiler flags | |
5780a46b BK |
161 | glibcpp_cflags= |
162 | glibcpp_cxxflags= | |
b2dad0e3 | 163 | |
5780a46b BK |
164 | . [$]{glibcpp_basedir}/configure.host |
165 | ||
166 | case [$]{glibcpp_basedir} in | |
6f87af20 | 167 | /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; |
5780a46b BK |
168 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; |
169 | esac | |
b2dad0e3 | 170 | |
d0941a31 PE |
171 | # This does for the target what configure.host does for the host. In |
172 | # addition to modifying the same flags, it also sets up symlinks. | |
173 | GLIBCPP_CHECK_TARGET | |
174 | ||
5780a46b BK |
175 | GLIBCPP_CFLAGS="[$]{glibcpp_cflags}" |
176 | GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}" | |
177 | AC_SUBST(GLIBCPP_CFLAGS) | |
178 | AC_SUBST(GLIBCPP_CXXFLAGS) | |
b2dad0e3 BK |
179 | ]) |
180 | ||
181 | ||
182 | dnl | |
8bd636c5 | 183 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
184 | dnl specific precautions need to be taken. |
185 | dnl | |
186 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
187 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
44382959 BK |
188 | if test ! -f stamp-sanity-compiler; then |
189 | AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) | |
190 | AC_LANG_SAVE | |
191 | AC_LANG_CPLUSPLUS | |
192 | AC_EGREP_CPP(ok, [ | |
193 | #if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) | |
c470c17d BK |
194 | ok |
195 | #endif | |
8b8ab21c | 196 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to gcc-2.95 or above])) |
44382959 | 197 | AC_LANG_RESTORE |
c470c17d | 198 | AC_MSG_RESULT($gpp_satisfactory) |
44382959 BK |
199 | touch stamp-sanity-compiler |
200 | fi | |
c470c17d BK |
201 | ]) |
202 | ||
203 | ||
204 | dnl | |
205 | dnl Test for newer compiler features, or features that are present in newer | |
d3a12960 BK |
206 | dnl compiler version but not older compiler versions should be placed |
207 | dnl here. | |
b2dad0e3 | 208 | dnl |
c470c17d BK |
209 | dnl Define WFMT_FLAGS='-fdiagnostics-show-location=once' if possible |
210 | dnl | |
7f586614 BK |
211 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
212 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
213 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 214 | dnl |
c470c17d BK |
215 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
216 | dnl compiler supports it. | |
217 | dnl GLIBCPP_CHECK_COMPILER_FEATURES | |
218 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 PE |
219 | # All these tests are for C++; save the language and the compiler flags. |
220 | # The CXXFLAGS thing is suspicious, but based on similar bits | |
221 | # found in GLIBCPP_CONFIGURE. | |
222 | AC_LANG_SAVE | |
223 | AC_LANG_CPLUSPLUS | |
224 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
225 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 226 | |
7f586614 BK |
227 | # Check for maintainer-mode bits. |
228 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
229 | WERROR='' | |
8bd636c5 | 230 | else |
7f586614 | 231 | WERROR='-Werror' |
8bd636c5 PE |
232 | fi |
233 | ||
d3a12960 BK |
234 | # Check for more sophisticated diagnostic control. |
235 | AC_MSG_CHECKING([for g++ that supports -fdiagnostics-show-location=once]) | |
0517cb99 | 236 | CXXFLAGS='-Werror -fdiagnostics-show-location=once' |
a4e99046 PE |
237 | AC_TRY_COMPILE(, [int foo; |
238 | ], [ac_gabydiags=yes], [ac_gabydiags=no]) | |
239 | if test "$ac_test_CXXFLAGS" = set; then | |
240 | CXXFLAGS="$ac_save_CXXFLAGS" | |
241 | else | |
242 | # this is the suspicious part | |
243 | CXXFLAGS='' | |
244 | fi | |
6abd2230 | 245 | if test x"$ac_gabydiags" = x"yes"; then |
c470c17d | 246 | WFMT_FLAGS='-fdiagnostics-show-location=once' |
a4e99046 PE |
247 | fi |
248 | AC_MSG_RESULT($ac_gabydiags) | |
249 | ||
c470c17d BK |
250 | # Check for -ffunction-sections -fdata-sections |
251 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 252 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
253 | AC_TRY_COMPILE(, [int foo; |
254 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
255 | if test "$ac_test_CXXFLAGS" = set; then | |
256 | CXXFLAGS="$ac_save_CXXFLAGS" | |
257 | else | |
258 | # this is the suspicious part | |
259 | CXXFLAGS='' | |
260 | fi | |
4c07386b | 261 | if test x"$ac_fdsections" = x"yes" && test x"$enable_debug" = x"no"; then |
c470c17d BK |
262 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
263 | fi | |
264 | AC_MSG_RESULT($ac_fdsections) | |
265 | ||
a4e99046 | 266 | AC_LANG_RESTORE |
8bd636c5 | 267 | AC_SUBST(WERROR) |
c470c17d BK |
268 | AC_SUBST(WFMT_FLAGS) |
269 | AC_SUBST(SECTION_FLAGS) | |
b2dad0e3 BK |
270 | ]) |
271 | ||
c470c17d BK |
272 | |
273 | dnl | |
421173e6 PE |
274 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
275 | dnl the native linker is in use, all variables will be defined to something | |
276 | dnl safe (like an empty string). | |
277 | dnl | |
278 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
279 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 280 | dnl |
c470c17d BK |
281 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
282 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
283 | # If we're not using GNU ld, then there's no point in even trying these |
284 | # tests. Check for that first. We should have already tested for gld | |
285 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
286 | SECTION_LDFLAGS='' |
287 | OPT_LDFLAGS='' | |
421173e6 | 288 | AC_REQUIRE([AC_PROG_LD]) |
e7140677 BK |
289 | |
290 | # Set --gc-sections. | |
f4c79fef | 291 | if test "$ac_cv_prog_gnu_ld" = "notbroken"; then |
a9117427 | 292 | # GNU ld it is! Joy and bunny rabbits! |
421173e6 PE |
293 | |
294 | # All these tests are for C++; save the language and the compiler flags. | |
295 | # Need to do this so that g++ won't try to link in libstdc++ | |
296 | ac_test_CFLAGS="${CFLAGS+set}" | |
297 | ac_save_CFLAGS="$CFLAGS" | |
e7140677 | 298 | CFLAGS='-x c++ -Wl,--gc-sections' |
421173e6 PE |
299 | |
300 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
301 | # XXX This test is broken at the moment, as symbols required for |
302 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
303 | # this test has cored on solaris in the past. In addition, |
304 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
305 | # used sections, first .eh_frame and now some of the glibc sections for | |
306 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
307 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
308 | AC_TRY_RUN([ | |
309 | int main(void) | |
310 | { | |
a9117427 BK |
311 | try { throw 1; } |
312 | catch (...) { }; | |
421173e6 PE |
313 | return 0; |
314 | } | |
e466dc8a | 315 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
316 | if test "$ac_test_CFLAGS" = set; then |
317 | CFLAGS="$ac_save_CFLAGS" | |
318 | else | |
319 | # this is the suspicious part | |
320 | CFLAGS='' | |
321 | fi | |
322 | if test "$ac_sectionLDflags" = "yes"; then | |
e7140677 | 323 | SECTION_LDFLAGS='-Wl,--gc-sections' |
421173e6 PE |
324 | fi |
325 | AC_MSG_RESULT($ac_sectionLDflags) | |
e7140677 | 326 | fi |
a9117427 | 327 | |
e7140677 | 328 | # Set linker optimization flags. |
4c07386b | 329 | if test x"$ac_cv_prog_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then |
421173e6 | 330 | OPT_LDFLAGS='-Wl,-O1' |
421173e6 | 331 | fi |
e7140677 | 332 | |
c470c17d | 333 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 334 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
335 | ]) |
336 | ||
337 | ||
b2dad0e3 | 338 | dnl |
11fc1858 | 339 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
340 | dnl 1) declared when using the c++ compiler |
341 | dnl 2) has "C" linkage | |
342 | dnl | |
343 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
344 | dnl | |
345 | dnl argument 1 is name of function to check | |
346 | dnl | |
347 | dnl ASSUMES argument is a math function with ONE parameter | |
348 | dnl | |
349 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
350 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
38bd7296 | 351 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
352 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
353 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
354 | AC_LANG_SAVE | |
355 | AC_LANG_CPLUSPLUS | |
356 | AC_TRY_COMPILE([#include <math.h>], | |
357 | [ $1(0);], | |
358 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
359 | AC_LANG_RESTORE | |
360 | ]) | |
361 | fi | |
421173e6 PE |
362 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
363 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
364 | AC_CHECK_FUNCS($1) |
365 | fi | |
366 | ]) | |
367 | ||
20b11783 MM |
368 | dnl |
369 | dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of | |
370 | dnl of functions at once. It's an all-or-nothing check -- either | |
9b8fd32c | 371 | dnl HAVE_XYZ is defined for each of the functions, or for none of them. |
20b11783 MM |
372 | dnl Doing it this way saves significant configure time. |
373 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ | |
374 | AC_MSG_CHECKING([for $1 functions]) | |
375 | AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ | |
376 | AC_LANG_SAVE | |
377 | AC_LANG_CPLUSPLUS | |
378 | AC_TRY_COMPILE([#include <math.h>], | |
379 | [ `for x in $3; do echo "$x (0);"; done` ], | |
9b8fd32c PE |
380 | [glibcpp_cv_func_$2_use=yes], |
381 | [glibcpp_cv_func_$2_use=no]) | |
20b11783 MM |
382 | AC_LANG_RESTORE]) |
383 | AC_MSG_RESULT($glibcpp_cv_func_$2_use) | |
384 | if test x$glibcpp_cv_func_$2_use = x"yes"; then | |
385 | AC_CHECK_FUNCS($3) | |
386 | fi | |
387 | ]) | |
38bd7296 BK |
388 | |
389 | dnl | |
11fc1858 | 390 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
391 | dnl 1) declared when using the c++ compiler |
392 | dnl 2) has "C" linkage | |
393 | dnl | |
394 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
395 | dnl | |
396 | dnl argument 1 is name of function to check | |
397 | dnl | |
398 | dnl ASSUMES argument is a math function with TWO parameters | |
399 | dnl | |
400 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 | |
401 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
38bd7296 | 402 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
403 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
404 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
405 | AC_LANG_SAVE | |
406 | AC_LANG_CPLUSPLUS | |
407 | AC_TRY_COMPILE([#include <math.h>], | |
408 | [ $1(0, 0);], | |
409 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
410 | AC_LANG_RESTORE | |
411 | ]) | |
412 | fi | |
421173e6 PE |
413 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
414 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
415 | AC_CHECK_FUNCS($1) |
416 | fi | |
417 | ]) | |
418 | ||
419 | ||
420 | dnl | |
11fc1858 | 421 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
422 | dnl 1) declared when using the c++ compiler |
423 | dnl 2) has "C" linkage | |
424 | dnl | |
425 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
426 | dnl | |
427 | dnl argument 1 is name of function to check | |
428 | dnl | |
429 | dnl ASSUMES argument is a math function with THREE parameters | |
430 | dnl | |
431 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
432 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
38bd7296 | 433 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
434 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
435 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
436 | AC_LANG_SAVE | |
437 | AC_LANG_CPLUSPLUS | |
438 | AC_TRY_COMPILE([#include <math.h>], | |
439 | [ $1(0, 0, 0);], | |
440 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
441 | AC_LANG_RESTORE | |
442 | ]) | |
443 | fi | |
421173e6 PE |
444 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
445 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
446 | AC_CHECK_FUNCS($1) |
447 | fi | |
448 | ]) | |
449 | ||
450 | ||
e7140677 BK |
451 | dnl |
452 | dnl Check to see if the (stdlib function) argument passed is | |
453 | dnl 1) declared when using the c++ compiler | |
454 | dnl 2) has "C" linkage | |
455 | dnl | |
456 | dnl Define HAVE_STRTOLD if "strtold" is declared and links | |
457 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
458 | dnl | |
459 | dnl argument 1 is name of function to check | |
460 | dnl | |
461 | dnl ASSUMES argument is a math function with TWO parameters | |
462 | dnl | |
463 | dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 | |
464 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ | |
465 | AC_MSG_CHECKING([for $1 declaration]) | |
f84ef7fb PE |
466 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
467 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
468 | AC_LANG_SAVE | |
469 | AC_LANG_CPLUSPLUS | |
470 | AC_TRY_COMPILE([#include <stdlib.h>], | |
471 | [ $1(0, 0);], | |
472 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
473 | AC_LANG_RESTORE | |
474 | ]) | |
475 | fi | |
e7140677 BK |
476 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
477 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
478 | AC_CHECK_FUNCS($1) | |
479 | fi | |
480 | ]) | |
481 | ||
482 | ||
11fc1858 BK |
483 | dnl |
484 | dnl Because the builtins are picky picky picky about the arguments they take, | |
485 | dnl do an explict linkage tests here. | |
486 | dnl Check to see if the (math function) argument passed is | |
487 | dnl 1) declared when using the c++ compiler | |
488 | dnl 2) has "C" linkage | |
489 | dnl | |
490 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
491 | dnl | |
492 | dnl argument 1 is name of function to check | |
493 | dnl | |
494 | dnl ASSUMES argument is a math function with ONE parameter | |
495 | dnl | |
496 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
497 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 498 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
499 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
500 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
501 | AC_LANG_SAVE | |
502 | AC_LANG_CPLUSPLUS | |
503 | AC_TRY_COMPILE([#include <math.h>], | |
504 | [ $1(0);], | |
505 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
506 | AC_LANG_RESTORE | |
507 | ]) | |
508 | fi | |
421173e6 PE |
509 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
510 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 511 | AC_MSG_CHECKING([for $1 linkage]) |
f84ef7fb PE |
512 | if test x${glibcpp_cv_func_$1_link+set} != xset; then |
513 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ | |
514 | AC_TRY_LINK([#include <math.h>], | |
515 | [ $1(0);], | |
516 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
517 | ]) | |
518 | fi | |
421173e6 PE |
519 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) |
520 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
521 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
522 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
523 | fi | |
524 | fi | |
525 | ]) | |
526 | ||
527 | ||
528 | dnl | |
529 | dnl Check to see what builtin math functions are supported | |
530 | dnl | |
531 | dnl check for __builtin_abs | |
532 | dnl check for __builtin_fabsf | |
533 | dnl check for __builtin_fabs | |
534 | dnl check for __builtin_fabl | |
535 | dnl check for __builtin_labs | |
536 | dnl check for __builtin_sqrtf | |
537 | dnl check for __builtin_sqrtl | |
538 | dnl check for __builtin_fsqrt | |
539 | dnl check for __builtin_sinf | |
540 | dnl check for __builtin_sin | |
541 | dnl check for __builtin_sinl | |
542 | dnl check for __builtin_cosf | |
543 | dnl check for __builtin_cos | |
544 | dnl check for __builtin_cosl | |
545 | dnl | |
546 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
547 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
548 | dnl Test for builtin math functions. | |
549 | dnl These are made in gcc/c-common.c | |
550 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
551 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
552 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
553 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
554 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
555 | ||
556 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
557 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
558 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
559 | ||
560 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
561 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
562 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
563 | ||
564 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
565 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
566 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
567 | ||
568 | dnl There is, without a doubt, a more elegant way to have these | |
569 | dnl names exported so that they won't be stripped out of acconfig.h by | |
570 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
571 | dnl than I.... please email the libstdc++ list if you can figure out a | |
572 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
573 | dnl AC_CHECK_FUNC for things to steal.) | |
574 | dummyvar=no | |
575 | if test x$dummyvar = x"yes"; then | |
576 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
577 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
578 | AC_DEFINE(HAVE___BUILTIN_COS) | |
579 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
580 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
581 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
582 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
583 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
584 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
585 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
586 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
587 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
588 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
589 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
590 | fi | |
591 | ]) | |
592 | ||
593 | ||
e7140677 BK |
594 | dnl |
595 | dnl Check to see what the underlying c library | |
596 | dnl These checks need to do two things: | |
597 | dnl 1) make sure the name is declared when using the c++ compiler | |
598 | dnl 2) make sure the name has "C" linkage | |
599 | dnl This might seem like overkill but experience has shown that it's not... | |
600 | dnl | |
601 | dnl Define HAVE_STRTOF etc if "strtof" is found. | |
602 | dnl Define HAVE_STRTOLD etc if "strtold" is found. | |
603 | dnl | |
604 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
605 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
606 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
607 | ac_save_CXXFLAGS="$CXXFLAGS" | |
608 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
609 | ||
610 | AC_CHECK_FUNCS(strtof) | |
611 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) | |
612 | ||
613 | CXXFLAGS="$ac_save_CXXFLAGS" | |
614 | ]) | |
615 | ||
616 | ||
2f103494 BK |
617 | dnl |
618 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
619 | dnl These checks need to do two things: |
620 | dnl 1) make sure the name is declared when using the c++ compiler | |
621 | dnl 2) make sure the name has "C" linkage | |
622 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
623 | dnl |
624 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
625 | dnl | |
626 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
627 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
628 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
629 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 630 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
631 | |
632 | dnl Check libm | |
2f103494 | 633 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 634 | ac_save_LIBS="$LIBS" |
2f103494 BK |
635 | LIBS="$LIBS $libm" |
636 | ||
38bd7296 BK |
637 | dnl Check to see if certain C math functions exist. |
638 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
639 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
640 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
641 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
642 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
643 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
644 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
645 | ||
646 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 647 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, |
9b8fd32c PE |
648 | float_trig, |
649 | acosf asinf atanf \ | |
20b11783 | 650 | cosf sinf tanf \ |
9b8fd32c | 651 | coshf sinhf tanhf) |
20b11783 | 652 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, |
9b8fd32c | 653 | float_round, |
20b11783 | 654 | ceilf floorf) |
38bd7296 BK |
655 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) |
656 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
38bd7296 | 657 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) |
38bd7296 BK |
658 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) |
659 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
660 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) | |
661 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
662 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
663 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
664 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
38bd7296 | 665 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) |
38bd7296 BK |
666 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) |
667 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
668 | ||
669 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 670 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, |
9b8fd32c PE |
671 | long_double_trig, |
672 | acosl asinl atanl \ | |
20b11783 | 673 | cosl sinl tanl \ |
9b8fd32c | 674 | coshl sinhl tanhl) |
20b11783 | 675 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, |
9b8fd32c | 676 | long_double_round, |
20b11783 | 677 | ceill floorl) |
38bd7296 BK |
678 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) |
679 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 680 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 | 681 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) |
38bd7296 BK |
682 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) |
683 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
38bd7296 BK |
684 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) |
685 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
686 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) | |
687 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
688 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
689 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
690 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
38bd7296 | 691 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) |
38bd7296 BK |
692 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) |
693 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
694 | ||
695 | dnl Some runtimes have these functions with a preceding underscore. Please | |
696 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
697 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
698 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
699 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinf) |
700 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnan) | |
701 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finite) | |
702 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysign) | |
703 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincos) | |
704 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fpclass) | |
705 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_qfpclass) | |
706 | ||
707 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 708 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, |
9b8fd32c PE |
709 | _float_trig, |
710 | _acosf _asinf _atanf \ | |
20b11783 | 711 | _cosf _sinf _tanf \ |
9b8fd32c | 712 | _coshf _sinhf _tanhf) |
20b11783 | 713 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, |
9b8fd32c | 714 | _float_round, |
20b11783 | 715 | _ceilf _floorf) |
38bd7296 BK |
716 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanf) |
717 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinff) | |
38bd7296 | 718 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsf) |
38bd7296 BK |
719 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodf) |
720 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpf) | |
721 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpf) | |
722 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logf) | |
723 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10f) | |
724 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modff) | |
725 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powf) | |
38bd7296 | 726 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtf) |
38bd7296 BK |
727 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosf) |
728 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitef) | |
729 | ||
730 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 731 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, |
9b8fd32c PE |
732 | _long_double_trig, |
733 | _acosl _asinl _atanl \ | |
20b11783 | 734 | _cosl _sinl _tanl \ |
9b8fd32c | 735 | _coshl _sinhl _tanhl) |
20b11783 | 736 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, |
9b8fd32c | 737 | _long_double_round, |
20b11783 | 738 | _ceill _floorl) |
38bd7296 BK |
739 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanl) |
740 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinfl) | |
11fc1858 | 741 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysignl) |
38bd7296 | 742 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2l) |
38bd7296 BK |
743 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expl) |
744 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsl) | |
38bd7296 BK |
745 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodl) |
746 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpl) | |
747 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpl) | |
748 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logl) | |
749 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10l) | |
750 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modfl) | |
751 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powl) | |
38bd7296 | 752 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtl) |
38bd7296 BK |
753 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosl) |
754 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitel) | |
755 | ||
756 | LIBS="$ac_save_LIBS" | |
757 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
758 | ]) |
759 | ||
760 | ||
761 | dnl | |
762 | dnl Check to see if there is native support for complex | |
763 | dnl | |
764 | dnl Don't compile bits in math/* if native support exits. | |
765 | dnl | |
8b8ab21c | 766 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found. |
2f103494 BK |
767 | dnl |
768 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
769 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
770 | dnl Check for complex versions of math functions of platform. | |
b4b2a487 | 771 | AC_CHECK_LIB(m, main) |
1228c7b6 | 772 | AC_REPLACE_MATHFUNCS(nan hypot hypotf atan2f expf copysignf) |
11fc1858 BK |
773 | |
774 | dnl Compile the long double complex functions only if the function | |
775 | dnl provides the non-complex long double functions that are needed. | |
776 | dnl Currently this includes copysignl and atan2l, which should be | |
777 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. | |
778 | USE_COMPLEX_LONG_DOUBLE=no | |
779 | if test x$ac_cv_func_atan2l = x"yes" \ | |
780 | && test x$ac_cv_func_copysignl = x"yes"; then | |
781 | USE_COMPLEX_LONG_DOUBLE=yes | |
1228c7b6 | 782 | AC_REPLACE_MATHFUNCS(hypotl signbitl) |
11fc1858 BK |
783 | fi |
784 | ||
2f103494 BK |
785 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
786 | ]) | |
787 | ||
54fa7415 | 788 | |
d0941a31 PE |
789 | dnl Check to see what architecture and operating system we are compiling |
790 | dnl for. Also, if architecture- or OS-specific flags are required for | |
791 | dnl compilation, pick them up here. | |
e974e9cc | 792 | dnl |
d0941a31 PE |
793 | dnl GLIBCPP_CHECK_TARGET |
794 | AC_DEFUN(GLIBCPP_CHECK_TARGET, [ | |
795 | . [$]{glibcpp_basedir}/configure.target | |
796 | AC_MSG_RESULT(CPU config directory is $cpu_include_dir) | |
797 | AC_MSG_RESULT(OS config directory is $os_include_dir) | |
5e53dba6 | 798 | AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h) |
e974e9cc BK |
799 | ]) |
800 | ||
801 | ||
b2dad0e3 BK |
802 | dnl |
803 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
8b8ab21c BK |
804 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
805 | dnl must have been previously checked.) | |
b2dad0e3 BK |
806 | dnl |
807 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found | |
7b331228 | 808 | dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h |
b2dad0e3 BK |
809 | dnl |
810 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
811 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
7b331228 BK |
812 | |
813 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and | |
814 | dnl others even if wchar_t support is not on. | |
815 | AC_MSG_CHECKING([for mbstate_t]) | |
816 | AC_TRY_COMPILE([#include <wchar.h>], | |
817 | [mbstate_t teststate;], | |
818 | have_mbstate_t=yes, have_mbstate_t=no) | |
819 | AC_MSG_RESULT($have_mbstate_t) | |
820 | if test x"$have_mbstate_t" = xyes; then | |
821 | AC_DEFINE(HAVE_MBSTATE_T) | |
822 | fi | |
823 | ||
824 | dnl Sanity check for existence of ISO C99 headers for extended encoding. | |
825 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
826 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
b2dad0e3 | 827 | |
7b331228 BK |
828 | dnl Only continue checking if the ISO C99 headers exist and support is on. |
829 | if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes \ | |
830 | && test x"$enable_c_mbchar" != xno; then | |
831 | ||
832 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
833 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
834 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
835 | AC_TRY_COMPILE([#include <wchar.h>], | |
836 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
837 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
838 | AC_MSG_RESULT($has_wchar_minmax) | |
8b8ab21c | 839 | |
7b331228 BK |
840 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
841 | dnl to specialize for char_traits<wchar_t> or not. | |
842 | AC_MSG_CHECKING([for WEOF]) | |
843 | AC_TRY_COMPILE([ | |
844 | #include <wchar.h> | |
845 | #include <stddef.h>], | |
846 | [wint_t i = WEOF;], | |
847 | has_weof=yes, has_weof=no) | |
848 | AC_MSG_RESULT($has_weof) | |
8b8ab21c | 849 | |
7b331228 BK |
850 | dnl Tests for wide character functions used in char_traits<wchar_t>. |
851 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \ | |
852 | wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no) | |
8b8ab21c | 853 | |
7b331228 BK |
854 | AC_MSG_CHECKING([for ISO C99 wchar_t support]) |
855 | if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \ | |
856 | && test x"$ac_wfuncs" = xyes; then | |
857 | ac_isoC99_wchar_t=yes | |
858 | else | |
859 | ac_isoC99_wchar_t=no | |
860 | fi | |
861 | AC_MSG_RESULT($ac_isoC99_wchar_t) | |
8b8ab21c | 862 | |
7b331228 BK |
863 | dnl Use iconv for wchar_t to char conversions. As such, check for |
864 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
865 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
866 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
867 | ||
868 | dnl Check for existence of libiconv.a providing XPG2 wchar_t support. | |
869 | AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") | |
870 | ac_save_LIBS="$LIBS" | |
871 | LIBS="$LIBS $libiconv" | |
872 | ||
873 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
874 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
8b8ab21c | 875 | |
7b331228 | 876 | LIBS="$ac_save_LIBS" |
5b20f7a0 | 877 | |
7b331228 BK |
878 | AC_MSG_CHECKING([for XPG2 wchar_t support]) |
879 | if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \ | |
880 | && test x"$ac_XPG2funcs" = xyes; then | |
881 | ac_XPG2_wchar_t=yes | |
882 | else | |
883 | ac_XPG2_wchar_t=no | |
884 | fi | |
885 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
b2dad0e3 | 886 | |
7b331228 BK |
887 | dnl At the moment, only enable wchar_t specializations if all the |
888 | dnl above support is present. | |
889 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
890 | if test x"$ac_isoC99_wchar_t" = xyes \ | |
891 | && test x"$ac_XPG2_wchar_t" = xyes; then | |
892 | libinst_wstring_la="libinst-wstring.la" | |
893 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) | |
894 | AC_MSG_RESULT("yes") | |
3840fa2a | 895 | else |
7b331228 BK |
896 | libinst_wstring_la="" |
897 | AC_MSG_RESULT("no") | |
3840fa2a | 898 | fi |
7b331228 BK |
899 | AC_SUBST(libinst_wstring_la) |
900 | ||
b2dad0e3 | 901 | else |
7b331228 BK |
902 | dnl Wide characters disabled by the user. |
903 | AC_MSG_WARN([wchar_t support disabled.]) | |
b2dad0e3 | 904 | fi |
b2dad0e3 BK |
905 | ]) |
906 | ||
907 | ||
908 | dnl | |
909 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
910 | dnl __complex__ float support. | |
911 | dnl | |
912 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
913 | dnl | |
2f103494 BK |
914 | dnl Check to see if this version of GNU C++ is afflicted by bugs in |
915 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
916 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
917 | dnl ctor in the specializations of complex<>. | |
918 | dnl | |
919 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
920 | dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT | |
921 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [ | |
b2dad0e3 | 922 | AC_REQUIRE([AC_PROG_CXX]) |
2f103494 BK |
923 | |
924 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
925 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
926 | AC_LANG_SAVE | |
927 | AC_LANG_CPLUSPLUS | |
928 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
8b8ab21c BK |
929 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ |
930 | [ dcomplex x; f(x); ], | |
2f103494 BK |
931 | glibcpp_cv_complex=ok, |
932 | glibcpp_cv_complex=buggy | |
933 | ) | |
934 | AC_LANG_RESTORE | |
935 | ]) | |
936 | AC_MSG_RESULT($glibcpp_cv_complex) | |
937 | if test $glibcpp_cv_complex = buggy; then | |
938 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
939 | fi | |
940 | ||
b2dad0e3 BK |
941 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) |
942 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
943 | AC_LANG_SAVE | |
944 | AC_LANG_CPLUSPLUS | |
945 | rm -f conftest.h | |
946 | cat > conftest.h <<EOB | |
947 | // | |
948 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
949 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
950 | // | |
747dcaf1 | 951 | // See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for |
b2dad0e3 BK |
952 | // more info on the bug itself. |
953 | // | |
954 | struct | |
955 | float_complex | |
956 | { | |
957 | __complex__ float m_value; | |
958 | float_complex (float = 0.0f, float = 0.0f); | |
959 | float_complex (__complex__ float val) : m_value (val) {} | |
960 | float_complex foo (const float_complex &val) | |
961 | { return float_complex (~val.m_value); } | |
962 | }; | |
963 | EOB | |
964 | AC_TRY_COMPILE([#include "conftest.h"], , | |
965 | glibcpp_cv_float_complex=ok, | |
966 | glibcpp_cv_float_complex=buggy | |
967 | ) | |
968 | AC_LANG_RESTORE | |
969 | ]) | |
970 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
971 | if test $glibcpp_cv_float_complex = buggy; then | |
972 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
973 | fi | |
974 | ]) | |
975 | ||
976 | ||
b2dad0e3 | 977 | dnl |
8bd636c5 | 978 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
979 | dnl |
980 | dnl GLIBCPP_ENABLE_DEBUG | |
34791641 | 981 | dnl --enable-debug sets '-ggdb3 -O0'. |
b2dad0e3 BK |
982 | dnl --disable-debug sets '-g' and whatever optimization options the |
983 | dnl compiler can handle. | |
7f586614 | 984 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
985 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
986 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
987 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
988 | dnl defaults to `no'. | |
989 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
990 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
991 | AC_ARG_ENABLE(debug, | |
992 | changequote(<<, >>)dnl | |
993 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
994 | changequote([, ])dnl | |
5780a46b | 995 | [case "${enableval}" in |
b2dad0e3 BK |
996 | yes) enable_debug=yes ;; |
997 | no) enable_debug=no ;; | |
998 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
999 | esac], | |
1000 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 1001 | |
b2dad0e3 | 1002 | dnl Option parsed, now set things appropriately |
5780a46b | 1003 | case "${enable_debug}" in |
cde28f0d | 1004 | yes) |
34791641 | 1005 | DEBUG_FLAGS='-O0 -ggdb3' |
6abd2230 | 1006 | ;; |
f3b004d8 | 1007 | no) |
8b8ab21c | 1008 | DEBUG_FLAGS='-g' |
f3b004d8 | 1009 | ;; |
b2dad0e3 | 1010 | esac |
c470c17d | 1011 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
1012 | ]) |
1013 | ||
1014 | ||
dcfa0bc8 PE |
1015 | dnl |
1016 | dnl Check for "unusual" flags to pass to the compiler while building. | |
1017 | dnl | |
1018 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
1019 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
1020 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
1021 | dnl Somehow this same set of flags must be passed when [re]building | |
1022 | dnl libgcc. | |
1023 | dnl --disable-cxx-flags passes nothing. | |
a9ab8db1 JM |
1024 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html |
1025 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
1026 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 1027 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
1028 | dnl If "default flags" is an empty string (or "none"), the effect is |
1029 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
1030 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
1031 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
1032 | AC_ARG_ENABLE(cxx-flags, | |
1033 | changequote(<<, >>)dnl | |
1034 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
1035 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
1036 | changequote([, ])dnl | |
1037 | [case "x$enableval" in | |
5780a46b | 1038 | xyes) |
8b8ab21c | 1039 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
5780a46b | 1040 | xno|x) |
8b8ab21c | 1041 | enable_cxx_flags='' ;; |
5780a46b | 1042 | *) |
8b8ab21c | 1043 | enable_cxx_flags="$enableval" ;; |
dcfa0bc8 | 1044 | esac], |
5780a46b BK |
1045 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
1046 | ||
32a4595e | 1047 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
1048 | if test "$enable_cxx_flags" = "none"; then |
1049 | enable_cxx_flags=''; | |
1050 | fi | |
1051 | ||
32a4595e PE |
1052 | dnl Run through flags (either default or command-line) and set anything |
1053 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
1054 | if test -n "$enable_cxx_flags"; then |
1055 | for f in $enable_cxx_flags; do | |
1056 | case "$f" in | |
991a40fc | 1057 | -fhonor-std) ;; |
dcfa0bc8 PE |
1058 | -*) ;; |
1059 | *) # and we're trying to pass /what/ exactly? | |
1060 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
1061 | esac | |
1062 | done | |
1063 | fi | |
1064 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
1065 | AC_SUBST(EXTRA_CXX_FLAGS) | |
1066 | ]) | |
1067 | ||
1068 | ||
b2dad0e3 | 1069 | dnl |
8bd636c5 | 1070 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1071 | dnl |
1072 | dnl GLIBCPP_ENABLE_CSTDIO | |
1073 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1074 | dnl | |
8e2d9424 | 1075 | dnl default is stdio |
b2dad0e3 BK |
1076 | dnl |
1077 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1078 | AC_MSG_CHECKING([for cstdio to use]) | |
1079 | AC_ARG_ENABLE(cstdio, | |
36e40658 BK |
1080 | [ --enable-cstdio enable stdio for target io package. |
1081 | --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] | |
1082 | ], | |
b2dad0e3 | 1083 | if test x$enable_cstdio = xno; then |
8e2d9424 | 1084 | enable_cstdio=stdio |
b2dad0e3 | 1085 | fi, |
8e2d9424 | 1086 | enable_cstdio=stdio) |
b2dad0e3 BK |
1087 | |
1088 | enable_cstdio_flag=$enable_cstdio | |
1089 | ||
8b8ab21c | 1090 | dnl Check if a valid I/O package |
b2dad0e3 | 1091 | case x${enable_cstdio_flag} in |
e26cb7ab | 1092 | xlibio) |
dd75251f BK |
1093 | CSTDIO_H=config/c_io_libio.h |
1094 | CSTDIO_CC=config/c_io_libio.cc | |
1095 | AC_MSG_RESULT(libio) | |
1096 | ||
1097 | # see if we are on a system with libio native (ie, linux) | |
1098 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1099 | ||
1100 | # Need to check and see what version of glibc is being used. If | |
1101 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1102 | # compile most of libio for linux systems. | |
1103 | if test x$has_libio = x"yes"; then | |
1104 | case "$target" in | |
1105 | *-*-linux*) | |
8b8ab21c BK |
1106 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1107 | AC_EGREP_CPP([ok], [ | |
1108 | #include <features.h> | |
1109 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1110 | ok | |
1111 | #endif | |
1112 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1113 | AC_MSG_RESULT($glibc_satisfactory) | |
1114 | ;; | |
dd75251f BK |
1115 | esac |
1116 | ||
8b8ab21c | 1117 | # XXX at the moment, admit defeat and force the recompilation |
f133a43e | 1118 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
8b8ab21c BK |
1119 | glibc_satisfactory=no |
1120 | ||
1121 | if test x$glibc_satisfactory = x"yes"; then | |
1122 | need_libio=no | |
8b8ab21c BK |
1123 | need_wlibio=no |
1124 | else | |
1125 | need_libio=yes | |
8b8ab21c BK |
1126 | # bkoz XXX need to add checks to enable this |
1127 | # pme XXX here's a first pass at such a check | |
1128 | if test x$enable_c_mbchar != xno; then | |
1129 | need_wlibio=yes | |
1130 | else | |
1131 | need_wlibio=no | |
1132 | fi | |
1133 | fi | |
dd75251f | 1134 | |
dd75251f | 1135 | else |
e7140677 | 1136 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
8b8ab21c | 1137 | need_libio=yes |
8b8ab21c BK |
1138 | # bkoz XXX need to add checks to enable this |
1139 | # pme XXX here's a first pass at such a check | |
1140 | if test x$enable_c_mbchar != xno; then | |
1141 | need_wlibio=yes | |
1142 | else | |
1143 | need_wlibio=no | |
1144 | fi | |
dd75251f BK |
1145 | fi |
1146 | ;; | |
e26cb7ab MM |
1147 | xstdio | x | xno | xnone | xyes) |
1148 | # default | |
9717c75c BK |
1149 | CSTDIO_H=config/c_io_stdio.h |
1150 | CSTDIO_CC=config/c_io_stdio.cc | |
1151 | AC_MSG_RESULT(stdio) | |
1152 | ||
e26cb7ab | 1153 | # We're not using stdio. |
dd75251f | 1154 | need_libio=no |
e26cb7ab MM |
1155 | need_wlibio=no |
1156 | # Wide characters are not supported with this package. | |
1157 | enable_c_mbchar=no | |
dd75251f BK |
1158 | ;; |
1159 | *) | |
1160 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1161 | exit 1 | |
1162 | ;; | |
b2dad0e3 | 1163 | esac |
5e53dba6 | 1164 | AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h) |
c4561450 | 1165 | AC_LINK_FILES($CSTDIO_CC, src/c++io.cc) |
8901ac21 BK |
1166 | |
1167 | # 2000-08-04 bkoz hack | |
1168 | CCODECVT_C=config/c_io_libio_codecvt.c | |
1169 | AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) | |
1170 | # 2000-08-04 bkoz hack | |
8b8ab21c | 1171 | |
85a011b0 PE |
1172 | AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, |
1173 | test "$need_libio" = yes || test "$need_wlibio" = yes) | |
b2dad0e3 | 1174 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
20427c6b | 1175 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
c4d3f801 | 1176 | if test "$need_libio" = yes || test "$need_wlibio" = yes; then |
4c07386b | 1177 | libio_la=../libio/libio.la |
c4d3f801 | 1178 | else |
4c07386b | 1179 | libio_la= |
c4d3f801 MM |
1180 | fi |
1181 | AC_SUBST(libio_la) | |
b2dad0e3 BK |
1182 | ]) |
1183 | ||
1184 | ||
1185 | dnl | |
8bd636c5 | 1186 | dnl Check for which threading library to use. |
b2dad0e3 BK |
1187 | dnl |
1188 | dnl GLIBCPP_ENABLE_THREADS | |
1189 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
1190 | dnl | |
8b8ab21c BK |
1191 | dnl Default is no threads, which also disables _IO_MTSAFE_IO in |
1192 | dnl libio. Any actual thread package will enable it. | |
b2dad0e3 BK |
1193 | dnl |
1194 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
1195 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
1196 | dnl Efforts should be made to keep this in sync. | |
1197 | AC_MSG_CHECKING([for threads package to use]) | |
1198 | AC_ARG_ENABLE(threads, | |
36e40658 BK |
1199 | [ --enable-threads enable thread usage for target GCC. |
1200 | --enable-threads=LIB use LIB thread package for target GCC. [default=no] | |
1201 | ], | |
b2dad0e3 BK |
1202 | if test x$enable_threads = xno; then |
1203 | enable_threads='' | |
1204 | fi, | |
1205 | enable_threads='') | |
1206 | ||
1207 | enable_threads_flag=$enable_threads | |
1208 | ||
1209 | dnl Check if a valid thread package | |
1210 | case x${enable_threads_flag} in | |
8b8ab21c BK |
1211 | x | xno | xnone) |
1212 | # No threads | |
1213 | target_thread_file='single' | |
1214 | ;; | |
1215 | xyes) | |
1216 | # default | |
d0941a31 | 1217 | target_thread_file='posix' |
8b8ab21c BK |
1218 | ;; |
1219 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
1220 | xsolaris | xwin32 | xdce | xvxworks) | |
1221 | target_thread_file=$enable_threads_flag | |
1222 | ;; | |
1223 | *) | |
1224 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1225 | exit 1 | |
1226 | ;; | |
b2dad0e3 BK |
1227 | esac |
1228 | ||
1229 | dnl Check for thread package actually supported in libstdc++ | |
e974e9cc | 1230 | THREADH= |
b2dad0e3 BK |
1231 | case "$target_thread_file" in |
1232 | no | none | single) | |
e974e9cc | 1233 | THREADH=threads-no.h |
b2dad0e3 BK |
1234 | ;; |
1235 | posix | pthreads) | |
e974e9cc | 1236 | THREADH=threads-posix.h |
b2dad0e3 BK |
1237 | ;; |
1238 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
1239 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
1240 | ;; | |
1241 | *) | |
d0941a31 | 1242 | AC_MSG_ERROR($THREADS is an unsupported/unknown thread package) |
b2dad0e3 BK |
1243 | ;; |
1244 | esac | |
e974e9cc | 1245 | AC_MSG_RESULT($THREADH) |
b2dad0e3 | 1246 | |
5e53dba6 | 1247 | AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h) |
8b8ab21c BK |
1248 | if test $THREADH != threads-no.h; then |
1249 | AC_DEFINE(_GLIBCPP_USE_THREADS) | |
1250 | fi | |
b2dad0e3 BK |
1251 | ]) |
1252 | ||
1253 | ||
1254 | dnl | |
8bd636c5 | 1255 | dnl Check for template specializations for the 'long long' type extension. |
b2dad0e3 BK |
1256 | dnl |
1257 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1258 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1259 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1260 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1261 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1262 | dnl defaults to `no'. | |
0137be2d | 1263 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. |
b2dad0e3 BK |
1264 | dnl |
1265 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1266 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1267 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
209fe19b | 1268 | |
b2dad0e3 BK |
1269 | AC_ARG_ENABLE(long-long, |
1270 | changequote(<<, >>)dnl | |
d0d88ce3 | 1271 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], |
b2dad0e3 BK |
1272 | changequote([, ])dnl |
1273 | [case "$enableval" in | |
1274 | yes) enable_long_long=yes ;; | |
1275 | no) enable_long_long=no ;; | |
1276 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1277 | esac], | |
1278 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
f4c79fef BK |
1279 | |
1280 | # Allow use of os-dependent settings, so that macros that turn on | |
1281 | # C99 capabilities can be defined and used in a consistent way. | |
1282 | OS_INC_PATH=${srcdir}/$os_include_dir | |
1283 | ac_test_CFLAGS="${CFLAGS+set}" | |
1284 | ac_save_CFLAGS="$CFLAGS" | |
1285 | CFLAGS="-I$OS_INC_PATH" | |
209fe19b | 1286 | |
f4c79fef | 1287 | # Check for the existence of functions used if long long is enabled. |
209fe19b BK |
1288 | AC_CHECK_FUNC(strtoll,,ac_strtoll=no) |
1289 | AC_CHECK_FUNC(strtoull,,ac_strtoull=no) | |
1290 | ||
f4c79fef BK |
1291 | # Check for lldiv_t, et. al. |
1292 | AC_MSG_CHECKING([for lldiv_t declaration]) | |
1293 | AC_CACHE_VAL(glibcpp_lldiv_t_use, [ | |
1294 | AC_TRY_COMPILE([#include <bits/os_defines.h> | |
4c07386b | 1295 | #include <stdlib.h>], |
f4c79fef BK |
1296 | [ lldiv_t mydivt;], |
1297 | [glibcpp_lldiv_t_use=yes], [glibcpp_lldiv_t_use=no]) | |
1298 | ]) | |
1299 | AC_MSG_RESULT($glibcpp_lldiv_t_use) | |
1300 | if test x$glibcpp_lldiv_t_use = x"yes"; then | |
a767e383 | 1301 | AC_DEFINE(HAVE_LLDIV_T) |
f4c79fef BK |
1302 | fi |
1303 | ||
3840fa2a | 1304 | AC_MSG_CHECKING([for enabled long long]) |
209fe19b | 1305 | if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then |
3840fa2a BK |
1306 | enable_long_long=no; |
1307 | fi; | |
d0d88ce3 | 1308 | AC_MSG_RESULT($enable_long_long) |
3840fa2a | 1309 | |
f4c79fef | 1310 | # Option parsed, now set things appropriately |
dcc41852 BK |
1311 | if test x"$enable_long_long" = xyes; then |
1312 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1313 | fi | |
4c07386b | 1314 | |
f4c79fef BK |
1315 | # Reset CFLAGS |
1316 | CFLAGS="$ac_save_CFLAGS" | |
b2dad0e3 BK |
1317 | ]) |
1318 | ||
1319 | ||
99246c90 | 1320 | dnl |
e3123ab3 BK |
1321 | dnl Check for what kind of C headers to use. |
1322 | dnl | |
1323 | dnl GLIBCPP_ENABLE_CHEADERS | |
1324 | dnl --enable-cheaders= [does stuff]. | |
1325 | dnl --disable-cheaders [does not do anything, really]. | |
1326 | dnl + This will eventually need to be 'c_shadow' by default. | |
1327 | dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] | |
1328 | dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. | |
1329 | dnl If ommitted, it defaults to `c_std'. | |
1330 | AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl | |
1331 | define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl | |
1332 | AC_MSG_CHECKING([for c header strategy to use]) | |
1333 | AC_ARG_ENABLE(cheaders, | |
99246c90 | 1334 | changequote(<<, >>)dnl |
e3123ab3 BK |
1335 | << --enable-cheaders construct "C" header files for |
1336 | g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], | |
5780a46b BK |
1337 | changequote([, ]) |
1338 | [case "$enableval" in | |
e3123ab3 | 1339 | c) |
9b8fd32c | 1340 | enable_cheaders=c |
8b8ab21c | 1341 | ;; |
e3123ab3 | 1342 | c_std) |
9b8fd32c | 1343 | enable_cheaders=c_std |
8b8ab21c | 1344 | ;; |
e3123ab3 | 1345 | c_shadow) |
9b8fd32c | 1346 | enable_cheaders=c_shadow |
e3123ab3 BK |
1347 | ;; |
1348 | *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) | |
8b8ab21c | 1349 | ;; |
5780a46b | 1350 | esac], |
e3123ab3 BK |
1351 | enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) |
1352 | AC_MSG_RESULT($enable_cheaders) | |
5780a46b BK |
1353 | |
1354 | dnl Option parsed, now set things appropriately | |
e3123ab3 BK |
1355 | case "$enable_cheaders" in |
1356 | c_shadow) | |
8b8ab21c | 1357 | CSHADOW_FLAGS="-fno-builtin" |
e3123ab3 | 1358 | C_INCLUDE_DIR='${top_srcdir}/include/c_shadow' |
0517cb99 | 1359 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
8b8ab21c | 1360 | ;; |
e3123ab3 BK |
1361 | c_std) |
1362 | CSHADOW_FLAGS="" | |
1363 | C_INCLUDE_DIR='${top_srcdir}/include/c_std' | |
1364 | ;; | |
1365 | c) | |
8b8ab21c BK |
1366 | CSHADOW_FLAGS="" |
1367 | C_INCLUDE_DIR='${top_srcdir}/include/c' | |
99246c90 | 1368 | ;; |
5780a46b | 1369 | esac |
5b80666b | 1370 | |
e466dc8a BK |
1371 | AC_SUBST(CSHADOW_FLAGS) |
1372 | AC_SUBST(C_INCLUDE_DIR) | |
e3123ab3 | 1373 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) |
99246c90 | 1374 | ]) |
b2dad0e3 | 1375 | |
8b8ab21c BK |
1376 | |
1377 | dnl | |
1378 | dnl Check for wide character support. Has the same effect as the option | |
1379 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1380 | dnl | |
1381 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1382 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1383 | dnl --disable-c-mbchar doesn't. | |
1384 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1385 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1386 | dnl defaults to `no'. | |
1387 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1388 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1389 | AC_ARG_ENABLE(c-mbchar, | |
1390 | changequote(<<, >>)dnl | |
1391 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1392 | changequote([, ])dnl | |
1393 | [case "$enableval" in | |
1394 | yes) enable_c_mbchar=yes ;; | |
1395 | no) enable_c_mbchar=no ;; | |
1396 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1397 | esac], | |
1398 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1399 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1400 | ]) | |
1401 | ||
1402 | ||
e466dc8a BK |
1403 | dnl |
1404 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1405 | dnl | |
1406 | dnl GLIBCPP_INCLUDE_DIR | |
1407 | dnl C_INCLUDE_DIR | |
1408 | dnl TOPLEVEL_INCLUDES | |
1409 | dnl LIBMATH_INCLUDES | |
1410 | dnl LIBSUPCXX_INCLUDES | |
1411 | dnl LIBIO_INCLUDES | |
1412 | dnl CSHADOW_INCLUDES | |
1413 | dnl | |
1414 | dnl GLIBCPP_EXPORT_INCLUDE | |
1415 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ | |
1416 | # Root level of the include sources. | |
1417 | GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' | |
1418 | ||
1419 | # Can either use include/c or include/c_std to grab "C" headers. This | |
1420 | # variable is set to the include directory currently in use. | |
e3123ab3 | 1421 | # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_CHEADERS |
e466dc8a | 1422 | |
9f935979 BK |
1423 | # Passed down for canadian crosses. |
1424 | if test x"$CANADIAN" = xyes; then | |
1425 | TOPLEVEL_INCLUDES='-I$(includedir)' | |
1426 | fi | |
e466dc8a BK |
1427 | |
1428 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1429 | ||
1430 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1431 | ||
1432 | #if GLIBCPP_NEED_LIBIO | |
1433 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1434 | #else | |
1435 | #LIBIO_INCLUDES='-I$(top_srcdir)/libio' | |
1436 | #endif | |
1437 | ||
1438 | #if GLIBCPP_USE_CSHADOW | |
1439 | # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ | |
1440 | # -I$(top_blddir)/cshadow' | |
1441 | #else | |
a40ba78e | 1442 | CSTD_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' |
e466dc8a BK |
1443 | #endif |
1444 | ||
1445 | # Now, export this to all the little Makefiles.... | |
1446 | AC_SUBST(GLIBCPP_INCLUDE_DIR) | |
1447 | AC_SUBST(TOPLEVEL_INCLUDES) | |
1448 | AC_SUBST(LIBMATH_INCLUDES) | |
1449 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
1450 | AC_SUBST(LIBIO_INCLUDES) | |
a40ba78e | 1451 | AC_SUBST(CSTD_INCLUDES) |
e466dc8a BK |
1452 | ]) |
1453 | ||
1454 | ||
1455 | dnl | |
1456 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1457 | dnl | |
1458 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1459 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1460 | # uncomment the lines below and make, everything else is ready to go... | |
1461 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1462 | OPTIMIZE_CXXFLAGS= | |
1463 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1464 | ||
1465 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1466 | AC_SUBST(WARN_FLAGS) | |
1467 | ]) | |
1468 | ||
b2dad0e3 | 1469 | |
af9fe0d1 BK |
1470 | # Check whether LC_MESSAGES is available in <locale.h>. |
1471 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1472 | # | |
1473 | # This file file be copied and used freely without restrictions. It can | |
1474 | # be used in projects which are not available under the GNU Public License | |
1475 | # but which still want to provide support for the GNU gettext functionality. | |
1476 | # Please note that the actual code is *not* freely available. | |
1477 | ||
1478 | # serial 1 | |
1479 | ||
819004bb BK |
1480 | AC_DEFUN(AC_LC_MESSAGES, [ |
1481 | AC_CHECK_HEADER(locale.h, [ | |
af9fe0d1 BK |
1482 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, |
1483 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1484 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1485 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1486 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1487 | fi | |
819004bb BK |
1488 | ]) |
1489 | ]) | |
af9fe0d1 BK |
1490 | |
1491 | ||
1492 | # Check for functions in math library. | |
1493 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1494 | # | |
1495 | # This file can be copied and used freely without restrictions. It can | |
1496 | # be used in projects which are not available under the GNU Public License | |
1497 | # but which still want to provide support for the GNU gettext functionality. | |
1498 | # Please note that the actual code is *not* freely available. | |
1499 | ||
1500 | # serial 1 | |
1501 | ||
1502 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1503 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1504 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1505 | AC_SUBST(LIBMATHOBJS)dnl | |
1506 | ]) | |
1507 | ||
1508 | ||
1509 | # Check for string functions. | |
1510 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1511 | # | |
1512 | # This file can be copied and used freely without restrictions. It can | |
1513 | # be used in projects which are not available under the GNU Public License | |
1514 | # but which still want to provide support for the GNU gettext functionality. | |
1515 | # Please note that the actual code is *not* freely available. | |
1516 | ||
1517 | # serial 1 | |
1518 | ||
1519 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1520 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1521 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1522 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1523 | ]) | |
b2dad0e3 | 1524 | |
29bd52c8 PE |
1525 | |
1526 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1527 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1528 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1529 | dnl which cannot be handled by other versions of make. The variable |
1530 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1531 | dnl the empty string otherwise. | |
1532 | dnl | |
1533 | dnl Here is an example of its use: | |
1534 | dnl | |
1535 | dnl Makefile.in might contain: | |
1536 | dnl | |
1537 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1538 | dnl $(DEPEND): | |
1539 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1540 | dnl | |
1541 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1542 | dnl @ifGNUmake@ include $(DEPEND) | |
1543 | dnl @ifGNUmake@ endif | |
1544 | dnl | |
1545 | dnl Then configure.in would normally contain: | |
1546 | dnl | |
1547 | dnl CHECK_GNU_MAKE() | |
1548 | dnl AC_OUTPUT(Makefile) | |
1549 | dnl | |
1550 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1551 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1552 | dnl | |
1553 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1554 | dnl mv Makefile GNUmakefile | |
1555 | dnl echo .DEFAULT: > Makefile ; | |
1556 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1557 | dnl fi | |
1558 | dnl | |
1559 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1560 | dnl exists, then the other make wraps the GNU make. | |
1561 | dnl | |
1562 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1563 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1564 | dnl |
1565 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1566 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1567 | dnl #### conditional's subshell (" --version" is not a command), using a |
1568 | dnl #### different option to grep(1). | |
29bd52c8 | 1569 | dnl #### -pme |
57d278be MS |
1570 | dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not |
1571 | dnl #### ${MAKE:-make}). | |
1572 | dnl #### -msokolov | |
29bd52c8 PE |
1573 | AC_DEFUN( |
1574 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1575 | _cv_gnu_make_command='' ; | |
1576 | dnl Search all the common names for GNU make | |
57d278be | 1577 | for a in "${MAKE-make}" make gmake gnumake ; do |
626d8f0a | 1578 | if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) |
79f5e38e | 1579 | then |
29bd52c8 PE |
1580 | _cv_gnu_make_command=$a ; |
1581 | break; | |
1582 | fi | |
1583 | done ; | |
1584 | ) ; | |
1585 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1586 | dnl string, '#' otherwise | |
1587 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1588 | ifGNUmake='' ; | |
1589 | else | |
1590 | ifGNUmake='#' ; | |
1591 | fi | |
1592 | AC_SUBST(ifGNUmake) | |
1593 | ]) | |
1594 | ||
3df64633 AO |
1595 | sinclude(../libtool.m4) |
1596 | dnl The lines below arrange for aclocal not to bring an installed | |
1597 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1598 | dnl add a definition of LIBTOOL to Makefile.in. | |
1599 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1600 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1601 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1602 | AC_DEFUN([AC_PROG_LD]) | |
1603 | ]) | |
7f586614 | 1604 | |
9a200b0a | 1605 | |
b2dad0e3 BK |
1606 | # Do all the work for Automake. This macro actually does too much -- |
1607 | # some checks are only needed if your package does certain things. | |
1608 | # But this isn't really a big deal. | |
1609 | ||
1610 | # serial 1 | |
1611 | ||
1612 | dnl Usage: | |
1613 | dnl AM_INIT_AUTOMAKE(package,version, [no-define]) | |
1614 | ||
1615 | AC_DEFUN(AM_INIT_AUTOMAKE, | |
1616 | [AC_REQUIRE([AC_PROG_INSTALL]) | |
1617 | PACKAGE=[$1] | |
1618 | AC_SUBST(PACKAGE) | |
1619 | VERSION=[$2] | |
1620 | AC_SUBST(VERSION) | |
1621 | dnl test to see if srcdir already configured | |
1622 | if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then | |
1623 | AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) | |
1624 | fi | |
1625 | ifelse([$3],, | |
1626 | AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) | |
1627 | AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])) | |
1628 | AC_REQUIRE([AM_SANITY_CHECK]) | |
1629 | AC_REQUIRE([AC_ARG_PROGRAM]) | |
1630 | dnl FIXME This is truly gross. | |
1631 | missing_dir=`cd $ac_aux_dir && pwd` | |
1632 | AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) | |
1633 | AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) | |
1634 | AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) | |
1635 | AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) | |
1636 | AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) | |
1637 | AC_REQUIRE([AC_PROG_MAKE_SET])]) | |
1638 | ||
1639 | # | |
1640 | # Check to make sure that the build environment is sane. | |
1641 | # | |
1642 | ||
1643 | AC_DEFUN(AM_SANITY_CHECK, | |
1644 | [AC_MSG_CHECKING([whether build environment is sane]) | |
1645 | # Just in case | |
1646 | sleep 1 | |
1647 | echo timestamp > conftestfile | |
1648 | # Do `set' in a subshell so we don't clobber the current shell's | |
1649 | # arguments. Must try -L first in case configure is actually a | |
1650 | # symlink; some systems play weird games with the mod time of symlinks | |
1651 | # (eg FreeBSD returns the mod time of the symlink's containing | |
1652 | # directory). | |
1653 | if ( | |
1654 | set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null` | |
1655 | if test "[$]*" = "X"; then | |
1656 | # -L didn't work. | |
1657 | set X `ls -t $srcdir/configure conftestfile` | |
1658 | fi | |
1659 | if test "[$]*" != "X $srcdir/configure conftestfile" \ | |
1660 | && test "[$]*" != "X conftestfile $srcdir/configure"; then | |
1661 | ||
1662 | # If neither matched, then we have a broken ls. This can happen | |
1663 | # if, for instance, CONFIG_SHELL is bash and it inherits a | |
1664 | # broken ls alias from the environment. This has actually | |
1665 | # happened. Such a system could not be considered "sane". | |
1666 | AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken | |
1667 | alias in your environment]) | |
1668 | fi | |
1669 | ||
1670 | test "[$]2" = conftestfile | |
1671 | ) | |
1672 | then | |
1673 | # Ok. | |
1674 | : | |
1675 | else | |
1676 | AC_MSG_ERROR([newly created file is older than distributed files! | |
1677 | Check your system clock]) | |
1678 | fi | |
1679 | rm -f conftest* | |
1680 | AC_MSG_RESULT(yes)]) | |
1681 | ||
1682 | dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) | |
1683 | dnl The program must properly implement --version. | |
1684 | AC_DEFUN(AM_MISSING_PROG, | |
1685 | [AC_MSG_CHECKING(for working $2) | |
1686 | # Run test in a subshell; some versions of sh will print an error if | |
1687 | # an executable is not found, even if stderr is redirected. | |
1688 | # Redirect stdin to placate older versions of autoconf. Sigh. | |
1689 | if ($2 --version) < /dev/null > /dev/null 2>&1; then | |
1690 | $1=$2 | |
1691 | AC_MSG_RESULT(found) | |
1692 | else | |
1693 | $1="$3/missing $2" | |
1694 | AC_MSG_RESULT(missing) | |
1695 | fi | |
1696 | AC_SUBST($1)]) | |
1697 | ||
1698 | # Add --enable-maintainer-mode option to configure. | |
1699 | # From Jim Meyering | |
1700 | ||
1701 | # serial 1 | |
1702 | ||
1703 | AC_DEFUN(AM_MAINTAINER_MODE, | |
1704 | [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
1705 | dnl maintainer-mode is disabled by default | |
1706 | AC_ARG_ENABLE(maintainer-mode, | |
1707 | [ --enable-maintainer-mode enable make rules and dependencies not useful | |
1708 | (and sometimes confusing) to the casual installer], | |
1709 | USE_MAINTAINER_MODE=$enableval, | |
1710 | USE_MAINTAINER_MODE=no) | |
1711 | AC_MSG_RESULT($USE_MAINTAINER_MODE) | |
1712 | AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes) | |
1713 | MAINT=$MAINTAINER_MODE_TRUE | |
1714 | AC_SUBST(MAINT)dnl | |
1715 | ] | |
1716 | ) | |
1717 | ||
1718 | # Define a conditional. | |
1719 | ||
1720 | AC_DEFUN(AM_CONDITIONAL, | |
1721 | [AC_SUBST($1_TRUE) | |
1722 | AC_SUBST($1_FALSE) | |
1723 | if $2; then | |
1724 | $1_TRUE= | |
1725 | $1_FALSE='#' | |
1726 | else | |
1727 | $1_TRUE='#' | |
1728 | $1_FALSE= | |
1729 | fi]) | |
1730 | ||
b2dad0e3 BK |
1731 | # Like AC_CONFIG_HEADER, but automatically create stamp file. |
1732 | ||
1733 | AC_DEFUN(AM_CONFIG_HEADER, | |
1734 | [AC_PREREQ([2.12]) | |
1735 | AC_CONFIG_HEADER([$1]) | |
1736 | dnl When config.status generates a header, we must update the stamp-h file. | |
1737 | dnl This file resides in the same directory as the config header | |
1738 | dnl that is generated. We must strip everything past the first ":", | |
1739 | dnl and everything past the last "/". | |
1740 | AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl | |
1741 | ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, | |
1742 | <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, | |
1743 | <<am_indx=1 | |
1744 | for am_file in <<$1>>; do | |
1745 | case " <<$>>CONFIG_HEADERS " in | |
1746 | *" <<$>>am_file "*<<)>> | |
1747 | echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx | |
1748 | ;; | |
1749 | esac | |
1750 | am_indx=`expr "<<$>>am_indx" + 1` | |
1751 | done<<>>dnl>>) | |
1752 | changequote([,]))]) | |
1753 |