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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 | ||
b2dad0e3 BK |
32 | AM_INIT_AUTOMAKE(libstdc++, 2.90.8) |
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 $(EXEEXT). Moreover, the test for EXEEXT normally | |
140 | # fails, because we are probably configuring with a cross compiler | |
141 | # which cant create executables. So we include AC_EXEEXT to keep | |
142 | # automake happy, but we dont execute it, since we dont care about | |
143 | # the result. | |
144 | if false; then | |
145 | AC_EXEEXT | |
146 | fi | |
b2dad0e3 | 147 | |
5780a46b | 148 | # configure.host sets the following important variables |
8b8ab21c BK |
149 | # glibcpp_cflags - host specific C compiler flags |
150 | # glibcpp_cxxflags - host specific C++ compiler flags | |
5780a46b BK |
151 | glibcpp_cflags= |
152 | glibcpp_cxxflags= | |
b2dad0e3 | 153 | |
5780a46b BK |
154 | . [$]{glibcpp_basedir}/configure.host |
155 | ||
156 | case [$]{glibcpp_basedir} in | |
6f87af20 | 157 | /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; |
5780a46b BK |
158 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; |
159 | esac | |
b2dad0e3 | 160 | |
d0941a31 PE |
161 | # This does for the target what configure.host does for the host. In |
162 | # addition to modifying the same flags, it also sets up symlinks. | |
163 | GLIBCPP_CHECK_TARGET | |
164 | ||
5780a46b BK |
165 | GLIBCPP_CFLAGS="[$]{glibcpp_cflags}" |
166 | GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}" | |
167 | AC_SUBST(GLIBCPP_CFLAGS) | |
168 | AC_SUBST(GLIBCPP_CXXFLAGS) | |
b2dad0e3 BK |
169 | ]) |
170 | ||
171 | ||
172 | dnl | |
8bd636c5 | 173 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
174 | dnl specific precautions need to be taken. |
175 | dnl | |
176 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
177 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
44382959 BK |
178 | if test ! -f stamp-sanity-compiler; then |
179 | AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) | |
180 | AC_LANG_SAVE | |
181 | AC_LANG_CPLUSPLUS | |
182 | AC_EGREP_CPP(ok, [ | |
183 | #if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) | |
c470c17d BK |
184 | ok |
185 | #endif | |
8b8ab21c | 186 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to gcc-2.95 or above])) |
44382959 | 187 | AC_LANG_RESTORE |
c470c17d | 188 | AC_MSG_RESULT($gpp_satisfactory) |
44382959 BK |
189 | touch stamp-sanity-compiler |
190 | fi | |
c470c17d BK |
191 | ]) |
192 | ||
193 | ||
194 | dnl | |
195 | dnl Test for newer compiler features, or features that are present in newer | |
d3a12960 BK |
196 | dnl compiler version but not older compiler versions should be placed |
197 | dnl here. | |
b2dad0e3 | 198 | dnl |
c470c17d BK |
199 | dnl Define WFMT_FLAGS='-fdiagnostics-show-location=once' if possible |
200 | dnl | |
7f586614 BK |
201 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
202 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
203 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 204 | dnl |
c470c17d BK |
205 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
206 | dnl compiler supports it. | |
207 | dnl GLIBCPP_CHECK_COMPILER_FEATURES | |
208 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 PE |
209 | # All these tests are for C++; save the language and the compiler flags. |
210 | # The CXXFLAGS thing is suspicious, but based on similar bits | |
211 | # found in GLIBCPP_CONFIGURE. | |
212 | AC_LANG_SAVE | |
213 | AC_LANG_CPLUSPLUS | |
214 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
215 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 216 | |
7f586614 BK |
217 | # Check for maintainer-mode bits. |
218 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
219 | WERROR='' | |
8bd636c5 | 220 | else |
7f586614 | 221 | WERROR='-Werror' |
8bd636c5 PE |
222 | fi |
223 | ||
d3a12960 BK |
224 | # Check for more sophisticated diagnostic control. |
225 | AC_MSG_CHECKING([for g++ that supports -fdiagnostics-show-location=once]) | |
0517cb99 | 226 | CXXFLAGS='-Werror -fdiagnostics-show-location=once' |
a4e99046 PE |
227 | AC_TRY_COMPILE(, [int foo; |
228 | ], [ac_gabydiags=yes], [ac_gabydiags=no]) | |
229 | if test "$ac_test_CXXFLAGS" = set; then | |
230 | CXXFLAGS="$ac_save_CXXFLAGS" | |
231 | else | |
232 | # this is the suspicious part | |
233 | CXXFLAGS='' | |
234 | fi | |
6abd2230 | 235 | if test x"$ac_gabydiags" = x"yes"; then |
c470c17d | 236 | WFMT_FLAGS='-fdiagnostics-show-location=once' |
a4e99046 PE |
237 | fi |
238 | AC_MSG_RESULT($ac_gabydiags) | |
239 | ||
c470c17d BK |
240 | # Check for -ffunction-sections -fdata-sections |
241 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 242 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
243 | AC_TRY_COMPILE(, [int foo; |
244 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
245 | if test "$ac_test_CXXFLAGS" = set; then | |
246 | CXXFLAGS="$ac_save_CXXFLAGS" | |
247 | else | |
248 | # this is the suspicious part | |
249 | CXXFLAGS='' | |
250 | fi | |
4c07386b | 251 | if test x"$ac_fdsections" = x"yes" && test x"$enable_debug" = x"no"; then |
c470c17d BK |
252 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
253 | fi | |
254 | AC_MSG_RESULT($ac_fdsections) | |
255 | ||
a4e99046 | 256 | AC_LANG_RESTORE |
8bd636c5 | 257 | AC_SUBST(WERROR) |
c470c17d BK |
258 | AC_SUBST(WFMT_FLAGS) |
259 | AC_SUBST(SECTION_FLAGS) | |
b2dad0e3 BK |
260 | ]) |
261 | ||
c470c17d BK |
262 | |
263 | dnl | |
421173e6 PE |
264 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
265 | dnl the native linker is in use, all variables will be defined to something | |
266 | dnl safe (like an empty string). | |
267 | dnl | |
268 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
269 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 270 | dnl |
c470c17d BK |
271 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
272 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
273 | # If we're not using GNU ld, then there's no point in even trying these |
274 | # tests. Check for that first. We should have already tested for gld | |
275 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
276 | SECTION_LDFLAGS='' |
277 | OPT_LDFLAGS='' | |
421173e6 | 278 | AC_REQUIRE([AC_PROG_LD]) |
e7140677 BK |
279 | |
280 | # Set --gc-sections. | |
f4c79fef | 281 | if test "$ac_cv_prog_gnu_ld" = "notbroken"; then |
a9117427 | 282 | # GNU ld it is! Joy and bunny rabbits! |
421173e6 PE |
283 | |
284 | # All these tests are for C++; save the language and the compiler flags. | |
285 | # Need to do this so that g++ won't try to link in libstdc++ | |
286 | ac_test_CFLAGS="${CFLAGS+set}" | |
287 | ac_save_CFLAGS="$CFLAGS" | |
e7140677 | 288 | CFLAGS='-x c++ -Wl,--gc-sections' |
421173e6 PE |
289 | |
290 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
291 | # XXX This test is broken at the moment, as symbols required for |
292 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
293 | # this test has cored on solaris in the past. In addition, |
294 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
295 | # used sections, first .eh_frame and now some of the glibc sections for | |
296 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
297 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
298 | AC_TRY_RUN([ | |
299 | int main(void) | |
300 | { | |
a9117427 BK |
301 | try { throw 1; } |
302 | catch (...) { }; | |
421173e6 PE |
303 | return 0; |
304 | } | |
e466dc8a | 305 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
306 | if test "$ac_test_CFLAGS" = set; then |
307 | CFLAGS="$ac_save_CFLAGS" | |
308 | else | |
309 | # this is the suspicious part | |
310 | CFLAGS='' | |
311 | fi | |
312 | if test "$ac_sectionLDflags" = "yes"; then | |
e7140677 | 313 | SECTION_LDFLAGS='-Wl,--gc-sections' |
421173e6 PE |
314 | fi |
315 | AC_MSG_RESULT($ac_sectionLDflags) | |
e7140677 | 316 | fi |
a9117427 | 317 | |
e7140677 | 318 | # Set linker optimization flags. |
4c07386b | 319 | if test x"$ac_cv_prog_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then |
421173e6 | 320 | OPT_LDFLAGS='-Wl,-O1' |
421173e6 | 321 | fi |
e7140677 | 322 | |
c470c17d | 323 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 324 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
325 | ]) |
326 | ||
327 | ||
b2dad0e3 | 328 | dnl |
11fc1858 | 329 | dnl Check to see if the (math function) argument passed is |
f8db4f20 | 330 | dnl declared when using the c++ compiler |
38bd7296 BK |
331 | dnl ASSUMES argument is a math function with ONE parameter |
332 | dnl | |
f8db4f20 BK |
333 | dnl GLIBCPP_CHECK_MATH_DECL_1 |
334 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [ | |
38bd7296 | 335 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
336 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
337 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
338 | AC_LANG_SAVE | |
339 | AC_LANG_CPLUSPLUS | |
340 | AC_TRY_COMPILE([#include <math.h>], | |
341 | [ $1(0);], | |
342 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
343 | AC_LANG_RESTORE | |
344 | ]) | |
345 | fi | |
421173e6 | 346 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
347 | ]) |
348 | ||
349 | dnl | |
350 | dnl Check to see if the (math function) argument passed is | |
351 | dnl 1) declared when using the c++ compiler | |
352 | dnl 2) has "C" linkage | |
353 | dnl 3) if not, see if 1) and 2) for argument prepended with '_' | |
354 | dnl | |
355 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
356 | dnl | |
357 | dnl argument 1 is name of function to check | |
358 | dnl | |
359 | dnl ASSUMES argument is a math function with ONE parameter | |
360 | dnl | |
361 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
362 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
363 | GLIBCPP_CHECK_MATH_DECL_1($1) | |
421173e6 | 364 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 365 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
366 | else |
367 | GLIBCPP_CHECK_MATH_DECL_1(_$1) | |
368 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
369 | AC_CHECK_FUNCS(_$1) | |
370 | fi | |
38bd7296 BK |
371 | fi |
372 | ]) | |
373 | ||
f8db4f20 | 374 | |
20b11783 MM |
375 | dnl |
376 | dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of | |
377 | dnl of functions at once. It's an all-or-nothing check -- either | |
9b8fd32c | 378 | dnl HAVE_XYZ is defined for each of the functions, or for none of them. |
20b11783 MM |
379 | dnl Doing it this way saves significant configure time. |
380 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ | |
381 | AC_MSG_CHECKING([for $1 functions]) | |
382 | AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ | |
383 | AC_LANG_SAVE | |
384 | AC_LANG_CPLUSPLUS | |
385 | AC_TRY_COMPILE([#include <math.h>], | |
386 | [ `for x in $3; do echo "$x (0);"; done` ], | |
9b8fd32c PE |
387 | [glibcpp_cv_func_$2_use=yes], |
388 | [glibcpp_cv_func_$2_use=no]) | |
20b11783 MM |
389 | AC_LANG_RESTORE]) |
390 | AC_MSG_RESULT($glibcpp_cv_func_$2_use) | |
391 | if test x$glibcpp_cv_func_$2_use = x"yes"; then | |
392 | AC_CHECK_FUNCS($3) | |
393 | fi | |
394 | ]) | |
38bd7296 BK |
395 | |
396 | dnl | |
11fc1858 | 397 | dnl Check to see if the (math function) argument passed is |
f8db4f20 BK |
398 | dnl declared when using the c++ compiler |
399 | dnl ASSUMES argument is a math function with ONE parameter | |
38bd7296 | 400 | dnl |
f8db4f20 BK |
401 | dnl GLIBCPP_CHECK_MATH_DECL_2 |
402 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [ | |
38bd7296 | 403 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
404 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
405 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
406 | AC_LANG_SAVE | |
407 | AC_LANG_CPLUSPLUS | |
408 | AC_TRY_COMPILE([#include <math.h>], | |
409 | [ $1(0, 0);], | |
410 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
411 | AC_LANG_RESTORE | |
412 | ]) | |
413 | fi | |
421173e6 | 414 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
38bd7296 BK |
415 | ]) |
416 | ||
38bd7296 | 417 | dnl |
11fc1858 | 418 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
419 | dnl 1) declared when using the c++ compiler |
420 | dnl 2) has "C" linkage | |
421 | dnl | |
422 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
423 | dnl | |
424 | dnl argument 1 is name of function to check | |
425 | dnl | |
f8db4f20 | 426 | dnl ASSUMES argument is a math function with TWO parameters |
38bd7296 | 427 | dnl |
f8db4f20 BK |
428 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 |
429 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
430 | GLIBCPP_CHECK_MATH_DECL_2($1) | |
431 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
432 | AC_CHECK_FUNCS($1) | |
433 | else | |
434 | GLIBCPP_CHECK_MATH_DECL_2(_$1) | |
435 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
436 | AC_CHECK_FUNCS(_$1) | |
437 | fi | |
438 | fi | |
439 | ]) | |
440 | ||
441 | ||
442 | dnl | |
443 | dnl Check to see if the (math function) argument passed is | |
444 | dnl declared when using the c++ compiler | |
445 | dnl ASSUMES argument is a math function with ONE parameter | |
446 | dnl | |
447 | dnl GLIBCPP_CHECK_MATH_DECL_3 | |
448 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [ | |
38bd7296 | 449 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
450 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
451 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
452 | AC_LANG_SAVE | |
453 | AC_LANG_CPLUSPLUS | |
454 | AC_TRY_COMPILE([#include <math.h>], | |
455 | [ $1(0, 0, 0);], | |
456 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
457 | AC_LANG_RESTORE | |
458 | ]) | |
459 | fi | |
421173e6 | 460 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
461 | ]) |
462 | ||
463 | dnl | |
464 | dnl Check to see if the (math 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_CARGF etc if "cargf" is declared and links | |
469 | dnl | |
470 | dnl argument 1 is name of function to check | |
471 | dnl | |
472 | dnl ASSUMES argument is a math function with THREE parameters | |
473 | dnl | |
474 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
475 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
476 | GLIBCPP_CHECK_MATH_DECL_3($1) | |
421173e6 | 477 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 478 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
479 | else |
480 | GLIBCPP_CHECK_MATH_DECL_3(_$1) | |
481 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
482 | AC_CHECK_FUNCS(_$1) | |
483 | fi | |
38bd7296 BK |
484 | fi |
485 | ]) | |
486 | ||
487 | ||
e7140677 BK |
488 | dnl |
489 | dnl Check to see if the (stdlib function) argument passed is | |
490 | dnl 1) declared when using the c++ compiler | |
491 | dnl 2) has "C" linkage | |
492 | dnl | |
493 | dnl Define HAVE_STRTOLD if "strtold" is declared and links | |
494 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
495 | dnl | |
496 | dnl argument 1 is name of function to check | |
497 | dnl | |
498 | dnl ASSUMES argument is a math function with TWO parameters | |
499 | dnl | |
500 | dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 | |
501 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ | |
502 | AC_MSG_CHECKING([for $1 declaration]) | |
f84ef7fb PE |
503 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
504 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
505 | AC_LANG_SAVE | |
506 | AC_LANG_CPLUSPLUS | |
507 | AC_TRY_COMPILE([#include <stdlib.h>], | |
508 | [ $1(0, 0);], | |
509 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
510 | AC_LANG_RESTORE | |
511 | ]) | |
512 | fi | |
e7140677 BK |
513 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
514 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
515 | AC_CHECK_FUNCS($1) | |
516 | fi | |
517 | ]) | |
518 | ||
519 | ||
11fc1858 BK |
520 | dnl |
521 | dnl Because the builtins are picky picky picky about the arguments they take, | |
522 | dnl do an explict linkage tests here. | |
523 | dnl Check to see if the (math function) argument passed is | |
524 | dnl 1) declared when using the c++ compiler | |
525 | dnl 2) has "C" linkage | |
526 | dnl | |
527 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
528 | dnl | |
529 | dnl argument 1 is name of function to check | |
530 | dnl | |
531 | dnl ASSUMES argument is a math function with ONE parameter | |
532 | dnl | |
533 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
534 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 535 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
536 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
537 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
538 | AC_LANG_SAVE | |
539 | AC_LANG_CPLUSPLUS | |
540 | AC_TRY_COMPILE([#include <math.h>], | |
541 | [ $1(0);], | |
542 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
543 | AC_LANG_RESTORE | |
544 | ]) | |
545 | fi | |
421173e6 PE |
546 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
547 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 548 | AC_MSG_CHECKING([for $1 linkage]) |
f84ef7fb PE |
549 | if test x${glibcpp_cv_func_$1_link+set} != xset; then |
550 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ | |
551 | AC_TRY_LINK([#include <math.h>], | |
552 | [ $1(0);], | |
553 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
554 | ]) | |
555 | fi | |
421173e6 PE |
556 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) |
557 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
558 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
559 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
560 | fi | |
561 | fi | |
562 | ]) | |
563 | ||
564 | ||
565 | dnl | |
566 | dnl Check to see what builtin math functions are supported | |
567 | dnl | |
568 | dnl check for __builtin_abs | |
569 | dnl check for __builtin_fabsf | |
570 | dnl check for __builtin_fabs | |
571 | dnl check for __builtin_fabl | |
572 | dnl check for __builtin_labs | |
573 | dnl check for __builtin_sqrtf | |
574 | dnl check for __builtin_sqrtl | |
575 | dnl check for __builtin_fsqrt | |
576 | dnl check for __builtin_sinf | |
577 | dnl check for __builtin_sin | |
578 | dnl check for __builtin_sinl | |
579 | dnl check for __builtin_cosf | |
580 | dnl check for __builtin_cos | |
581 | dnl check for __builtin_cosl | |
582 | dnl | |
583 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
584 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
585 | dnl Test for builtin math functions. | |
586 | dnl These are made in gcc/c-common.c | |
587 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
588 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
589 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
590 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
591 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
592 | ||
593 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
594 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
595 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
596 | ||
597 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
598 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
599 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
600 | ||
601 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
602 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
603 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
604 | ||
605 | dnl There is, without a doubt, a more elegant way to have these | |
606 | dnl names exported so that they won't be stripped out of acconfig.h by | |
607 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
608 | dnl than I.... please email the libstdc++ list if you can figure out a | |
609 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
610 | dnl AC_CHECK_FUNC for things to steal.) | |
611 | dummyvar=no | |
612 | if test x$dummyvar = x"yes"; then | |
613 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
614 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
615 | AC_DEFINE(HAVE___BUILTIN_COS) | |
616 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
617 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
618 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
619 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
620 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
621 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
622 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
623 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
624 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
625 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
626 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
627 | fi | |
628 | ]) | |
629 | ||
630 | ||
e7140677 BK |
631 | dnl |
632 | dnl Check to see what the underlying c library | |
633 | dnl These checks need to do two things: | |
634 | dnl 1) make sure the name is declared when using the c++ compiler | |
635 | dnl 2) make sure the name has "C" linkage | |
636 | dnl This might seem like overkill but experience has shown that it's not... | |
637 | dnl | |
638 | dnl Define HAVE_STRTOF etc if "strtof" is found. | |
639 | dnl Define HAVE_STRTOLD etc if "strtold" is found. | |
640 | dnl | |
641 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
642 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
643 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
644 | ac_save_CXXFLAGS="$CXXFLAGS" | |
645 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
646 | ||
647 | AC_CHECK_FUNCS(strtof) | |
648 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) | |
649 | ||
650 | CXXFLAGS="$ac_save_CXXFLAGS" | |
651 | ]) | |
652 | ||
653 | ||
2f103494 BK |
654 | dnl |
655 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
656 | dnl These checks need to do two things: |
657 | dnl 1) make sure the name is declared when using the c++ compiler | |
658 | dnl 2) make sure the name has "C" linkage | |
659 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
660 | dnl |
661 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
662 | dnl | |
663 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
664 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
665 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
666 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 667 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
668 | |
669 | dnl Check libm | |
2f103494 | 670 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 671 | ac_save_LIBS="$LIBS" |
2f103494 BK |
672 | LIBS="$LIBS $libm" |
673 | ||
38bd7296 BK |
674 | dnl Check to see if certain C math functions exist. |
675 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
676 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
677 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
678 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
679 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
680 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
681 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
682 | ||
683 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 684 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, |
9b8fd32c PE |
685 | float_trig, |
686 | acosf asinf atanf \ | |
20b11783 | 687 | cosf sinf tanf \ |
9b8fd32c | 688 | coshf sinhf tanhf) |
20b11783 | 689 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, |
9b8fd32c | 690 | float_round, |
20b11783 | 691 | ceilf floorf) |
38bd7296 BK |
692 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) |
693 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
38bd7296 | 694 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) |
38bd7296 BK |
695 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) |
696 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
697 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) | |
698 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
699 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
700 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
701 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
38bd7296 | 702 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) |
38bd7296 BK |
703 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) |
704 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
705 | ||
706 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 707 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, |
9b8fd32c PE |
708 | long_double_trig, |
709 | acosl asinl atanl \ | |
20b11783 | 710 | cosl sinl tanl \ |
9b8fd32c | 711 | coshl sinhl tanhl) |
20b11783 | 712 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, |
9b8fd32c | 713 | long_double_round, |
20b11783 | 714 | ceill floorl) |
38bd7296 BK |
715 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) |
716 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 717 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 | 718 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) |
38bd7296 BK |
719 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) |
720 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
38bd7296 BK |
721 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) |
722 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
723 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) | |
724 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
725 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
726 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
727 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
38bd7296 | 728 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) |
38bd7296 BK |
729 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) |
730 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
731 | ||
732 | dnl Some runtimes have these functions with a preceding underscore. Please | |
733 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
734 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
735 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
736 | |
737 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 738 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, |
9b8fd32c PE |
739 | _float_trig, |
740 | _acosf _asinf _atanf \ | |
20b11783 | 741 | _cosf _sinf _tanf \ |
9b8fd32c | 742 | _coshf _sinhf _tanhf) |
20b11783 | 743 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, |
9b8fd32c | 744 | _float_round, |
20b11783 | 745 | _ceilf _floorf) |
38bd7296 BK |
746 | |
747 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 748 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, |
9b8fd32c PE |
749 | _long_double_trig, |
750 | _acosl _asinl _atanl \ | |
20b11783 | 751 | _cosl _sinl _tanl \ |
9b8fd32c | 752 | _coshl _sinhl _tanhl) |
20b11783 | 753 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, |
9b8fd32c | 754 | _long_double_round, |
20b11783 | 755 | _ceill _floorl) |
38bd7296 BK |
756 | |
757 | LIBS="$ac_save_LIBS" | |
758 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
759 | ]) |
760 | ||
761 | ||
762 | dnl | |
763 | dnl Check to see if there is native support for complex | |
764 | dnl | |
765 | dnl Don't compile bits in math/* if native support exits. | |
766 | dnl | |
8b8ab21c | 767 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found. |
2f103494 BK |
768 | dnl |
769 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
770 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
771 | dnl Check for complex versions of math functions of platform. | |
b4b2a487 | 772 | AC_CHECK_LIB(m, main) |
1228c7b6 | 773 | AC_REPLACE_MATHFUNCS(nan hypot hypotf atan2f expf copysignf) |
11fc1858 BK |
774 | |
775 | dnl Compile the long double complex functions only if the function | |
776 | dnl provides the non-complex long double functions that are needed. | |
777 | dnl Currently this includes copysignl and atan2l, which should be | |
778 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. | |
779 | USE_COMPLEX_LONG_DOUBLE=no | |
780 | if test x$ac_cv_func_atan2l = x"yes" \ | |
781 | && test x$ac_cv_func_copysignl = x"yes"; then | |
782 | USE_COMPLEX_LONG_DOUBLE=yes | |
1228c7b6 | 783 | AC_REPLACE_MATHFUNCS(hypotl signbitl) |
11fc1858 BK |
784 | fi |
785 | ||
2f103494 BK |
786 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
787 | ]) | |
788 | ||
54fa7415 | 789 | |
d0941a31 PE |
790 | dnl Check to see what architecture and operating system we are compiling |
791 | dnl for. Also, if architecture- or OS-specific flags are required for | |
792 | dnl compilation, pick them up here. | |
e974e9cc | 793 | dnl |
d0941a31 PE |
794 | dnl GLIBCPP_CHECK_TARGET |
795 | AC_DEFUN(GLIBCPP_CHECK_TARGET, [ | |
796 | . [$]{glibcpp_basedir}/configure.target | |
797 | AC_MSG_RESULT(CPU config directory is $cpu_include_dir) | |
798 | AC_MSG_RESULT(OS config directory is $os_include_dir) | |
5e53dba6 | 799 | AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h) |
e974e9cc BK |
800 | ]) |
801 | ||
802 | ||
b2dad0e3 BK |
803 | dnl |
804 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
8b8ab21c BK |
805 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
806 | dnl must have been previously checked.) | |
b2dad0e3 BK |
807 | dnl |
808 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found | |
7b331228 | 809 | dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h |
b2dad0e3 BK |
810 | dnl |
811 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
812 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
7b331228 BK |
813 | |
814 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and | |
815 | dnl others even if wchar_t support is not on. | |
816 | AC_MSG_CHECKING([for mbstate_t]) | |
817 | AC_TRY_COMPILE([#include <wchar.h>], | |
818 | [mbstate_t teststate;], | |
819 | have_mbstate_t=yes, have_mbstate_t=no) | |
820 | AC_MSG_RESULT($have_mbstate_t) | |
821 | if test x"$have_mbstate_t" = xyes; then | |
822 | AC_DEFINE(HAVE_MBSTATE_T) | |
823 | fi | |
824 | ||
825 | dnl Sanity check for existence of ISO C99 headers for extended encoding. | |
826 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
827 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
b2dad0e3 | 828 | |
7b331228 BK |
829 | dnl Only continue checking if the ISO C99 headers exist and support is on. |
830 | if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes \ | |
831 | && test x"$enable_c_mbchar" != xno; then | |
832 | ||
833 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
834 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
835 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
836 | AC_TRY_COMPILE([#include <wchar.h>], | |
837 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
838 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
839 | AC_MSG_RESULT($has_wchar_minmax) | |
8b8ab21c | 840 | |
7b331228 BK |
841 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
842 | dnl to specialize for char_traits<wchar_t> or not. | |
843 | AC_MSG_CHECKING([for WEOF]) | |
844 | AC_TRY_COMPILE([ | |
845 | #include <wchar.h> | |
846 | #include <stddef.h>], | |
847 | [wint_t i = WEOF;], | |
848 | has_weof=yes, has_weof=no) | |
849 | AC_MSG_RESULT($has_weof) | |
8b8ab21c | 850 | |
7b331228 BK |
851 | dnl Tests for wide character functions used in char_traits<wchar_t>. |
852 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \ | |
853 | wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no) | |
8b8ab21c | 854 | |
7b331228 BK |
855 | AC_MSG_CHECKING([for ISO C99 wchar_t support]) |
856 | if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \ | |
857 | && test x"$ac_wfuncs" = xyes; then | |
858 | ac_isoC99_wchar_t=yes | |
859 | else | |
860 | ac_isoC99_wchar_t=no | |
861 | fi | |
862 | AC_MSG_RESULT($ac_isoC99_wchar_t) | |
8b8ab21c | 863 | |
7b331228 BK |
864 | dnl Use iconv for wchar_t to char conversions. As such, check for |
865 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
866 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
867 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
868 | ||
869 | dnl Check for existence of libiconv.a providing XPG2 wchar_t support. | |
870 | AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") | |
871 | ac_save_LIBS="$LIBS" | |
872 | LIBS="$LIBS $libiconv" | |
873 | ||
874 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
875 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
8b8ab21c | 876 | |
7b331228 | 877 | LIBS="$ac_save_LIBS" |
5b20f7a0 | 878 | |
7b331228 BK |
879 | AC_MSG_CHECKING([for XPG2 wchar_t support]) |
880 | if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \ | |
881 | && test x"$ac_XPG2funcs" = xyes; then | |
882 | ac_XPG2_wchar_t=yes | |
883 | else | |
884 | ac_XPG2_wchar_t=no | |
885 | fi | |
886 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
b2dad0e3 | 887 | |
7b331228 BK |
888 | dnl At the moment, only enable wchar_t specializations if all the |
889 | dnl above support is present. | |
890 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
891 | if test x"$ac_isoC99_wchar_t" = xyes \ | |
892 | && test x"$ac_XPG2_wchar_t" = xyes; then | |
893 | libinst_wstring_la="libinst-wstring.la" | |
894 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) | |
895 | AC_MSG_RESULT("yes") | |
3840fa2a | 896 | else |
7b331228 BK |
897 | libinst_wstring_la="" |
898 | AC_MSG_RESULT("no") | |
3840fa2a | 899 | fi |
7b331228 BK |
900 | AC_SUBST(libinst_wstring_la) |
901 | ||
b2dad0e3 | 902 | else |
7b331228 BK |
903 | dnl Wide characters disabled by the user. |
904 | AC_MSG_WARN([wchar_t support disabled.]) | |
b2dad0e3 | 905 | fi |
b2dad0e3 BK |
906 | ]) |
907 | ||
908 | ||
909 | dnl | |
910 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
911 | dnl __complex__ float support. | |
912 | dnl | |
913 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
914 | dnl | |
2f103494 BK |
915 | dnl Check to see if this version of GNU C++ is afflicted by bugs in |
916 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
917 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
918 | dnl ctor in the specializations of complex<>. | |
919 | dnl | |
920 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
921 | dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT | |
922 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [ | |
b2dad0e3 | 923 | AC_REQUIRE([AC_PROG_CXX]) |
2f103494 BK |
924 | |
925 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
926 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
927 | AC_LANG_SAVE | |
928 | AC_LANG_CPLUSPLUS | |
929 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
8b8ab21c BK |
930 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ |
931 | [ dcomplex x; f(x); ], | |
2f103494 BK |
932 | glibcpp_cv_complex=ok, |
933 | glibcpp_cv_complex=buggy | |
934 | ) | |
935 | AC_LANG_RESTORE | |
936 | ]) | |
937 | AC_MSG_RESULT($glibcpp_cv_complex) | |
938 | if test $glibcpp_cv_complex = buggy; then | |
939 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
940 | fi | |
941 | ||
b2dad0e3 BK |
942 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) |
943 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
944 | AC_LANG_SAVE | |
945 | AC_LANG_CPLUSPLUS | |
946 | rm -f conftest.h | |
947 | cat > conftest.h <<EOB | |
948 | // | |
949 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
950 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
951 | // | |
747dcaf1 | 952 | // See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for |
b2dad0e3 BK |
953 | // more info on the bug itself. |
954 | // | |
955 | struct | |
956 | float_complex | |
957 | { | |
958 | __complex__ float m_value; | |
959 | float_complex (float = 0.0f, float = 0.0f); | |
960 | float_complex (__complex__ float val) : m_value (val) {} | |
961 | float_complex foo (const float_complex &val) | |
962 | { return float_complex (~val.m_value); } | |
963 | }; | |
964 | EOB | |
965 | AC_TRY_COMPILE([#include "conftest.h"], , | |
966 | glibcpp_cv_float_complex=ok, | |
967 | glibcpp_cv_float_complex=buggy | |
968 | ) | |
969 | AC_LANG_RESTORE | |
970 | ]) | |
971 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
972 | if test $glibcpp_cv_float_complex = buggy; then | |
973 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
974 | fi | |
975 | ]) | |
976 | ||
977 | ||
b2dad0e3 | 978 | dnl |
8bd636c5 | 979 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
980 | dnl |
981 | dnl GLIBCPP_ENABLE_DEBUG | |
34791641 | 982 | dnl --enable-debug sets '-ggdb3 -O0'. |
b2dad0e3 BK |
983 | dnl --disable-debug sets '-g' and whatever optimization options the |
984 | dnl compiler can handle. | |
7f586614 | 985 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
986 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
987 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
988 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
989 | dnl defaults to `no'. | |
990 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
991 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
992 | AC_ARG_ENABLE(debug, | |
993 | changequote(<<, >>)dnl | |
994 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
995 | changequote([, ])dnl | |
5780a46b | 996 | [case "${enableval}" in |
b2dad0e3 BK |
997 | yes) enable_debug=yes ;; |
998 | no) enable_debug=no ;; | |
999 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
1000 | esac], | |
1001 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 1002 | |
b2dad0e3 | 1003 | dnl Option parsed, now set things appropriately |
5780a46b | 1004 | case "${enable_debug}" in |
cde28f0d | 1005 | yes) |
34791641 | 1006 | DEBUG_FLAGS='-O0 -ggdb3' |
6abd2230 | 1007 | ;; |
f3b004d8 | 1008 | no) |
8b8ab21c | 1009 | DEBUG_FLAGS='-g' |
f3b004d8 | 1010 | ;; |
b2dad0e3 | 1011 | esac |
c470c17d | 1012 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
1013 | ]) |
1014 | ||
1015 | ||
dcfa0bc8 PE |
1016 | dnl |
1017 | dnl Check for "unusual" flags to pass to the compiler while building. | |
1018 | dnl | |
1019 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
1020 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
1021 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
1022 | dnl Somehow this same set of flags must be passed when [re]building | |
1023 | dnl libgcc. | |
1024 | dnl --disable-cxx-flags passes nothing. | |
a9ab8db1 JM |
1025 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html |
1026 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
1027 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 1028 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
1029 | dnl If "default flags" is an empty string (or "none"), the effect is |
1030 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
1031 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
1032 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
1033 | AC_ARG_ENABLE(cxx-flags, | |
1034 | changequote(<<, >>)dnl | |
1035 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
1036 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
1037 | changequote([, ])dnl | |
1038 | [case "x$enableval" in | |
5780a46b | 1039 | xyes) |
8b8ab21c | 1040 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
5780a46b | 1041 | xno|x) |
8b8ab21c | 1042 | enable_cxx_flags='' ;; |
5780a46b | 1043 | *) |
8b8ab21c | 1044 | enable_cxx_flags="$enableval" ;; |
dcfa0bc8 | 1045 | esac], |
5780a46b BK |
1046 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
1047 | ||
32a4595e | 1048 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
1049 | if test "$enable_cxx_flags" = "none"; then |
1050 | enable_cxx_flags=''; | |
1051 | fi | |
1052 | ||
32a4595e PE |
1053 | dnl Run through flags (either default or command-line) and set anything |
1054 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
1055 | if test -n "$enable_cxx_flags"; then |
1056 | for f in $enable_cxx_flags; do | |
1057 | case "$f" in | |
991a40fc | 1058 | -fhonor-std) ;; |
dcfa0bc8 PE |
1059 | -*) ;; |
1060 | *) # and we're trying to pass /what/ exactly? | |
1061 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
1062 | esac | |
1063 | done | |
1064 | fi | |
1065 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
1066 | AC_SUBST(EXTRA_CXX_FLAGS) | |
1067 | ]) | |
1068 | ||
1069 | ||
0214010c BK |
1070 | dnl |
1071 | dnl Check for which locale library to use: gnu or generic. | |
1072 | dnl | |
1073 | dnl GLIBCPP_ENABLE_CLOCALE | |
1074 | dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends | |
1075 | dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends | |
1076 | dnl | |
1077 | dnl default is generic | |
1078 | dnl | |
1079 | AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [ | |
1080 | AC_MSG_CHECKING([for clocale to use]) | |
1081 | AC_ARG_ENABLE(clocale, | |
1082 | [ --enable-clocale enable model for target locale package. | |
1083 | --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic] | |
1084 | ], | |
1085 | if test x$enable_clocale = xno; then | |
1086 | enable_clocale=generic | |
1087 | fi, | |
1088 | enable_clocale=generic) | |
1089 | ||
1090 | enable_clocale_flag=$enable_clocale | |
1091 | ||
1092 | dnl Check if a valid locale package | |
1093 | case x${enable_clocale_flag} in | |
1094 | xgnu) | |
1095 | CLOCALE_H=config/c_locale_gnu.h | |
1096 | CLOCALE_CC=config/c_locale_gnu.cc | |
1097 | AC_MSG_RESULT(gnu) | |
1098 | ;; | |
1099 | xgeneric) | |
1100 | CLOCALE_H=config/c_locale_generic.h | |
1101 | CLOCALE_CC=config/c_locale_generic.cc | |
1102 | AC_MSG_RESULT(generic) | |
1103 | ;; | |
1104 | *) | |
1105 | echo "$enable_clocale is an unknown locale package" 1>&2 | |
1106 | exit 1 | |
1107 | ;; | |
1108 | esac | |
1109 | ||
1110 | AC_LINK_FILES($CLOCALE_H, include/bits/c++locale.h) | |
1111 | AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc) | |
1112 | ]) | |
1113 | ||
1114 | ||
b2dad0e3 | 1115 | dnl |
8bd636c5 | 1116 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1117 | dnl |
1118 | dnl GLIBCPP_ENABLE_CSTDIO | |
1119 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1120 | dnl | |
8e2d9424 | 1121 | dnl default is stdio |
b2dad0e3 BK |
1122 | dnl |
1123 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1124 | AC_MSG_CHECKING([for cstdio to use]) | |
1125 | AC_ARG_ENABLE(cstdio, | |
36e40658 BK |
1126 | [ --enable-cstdio enable stdio for target io package. |
1127 | --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] | |
1128 | ], | |
b2dad0e3 | 1129 | if test x$enable_cstdio = xno; then |
8e2d9424 | 1130 | enable_cstdio=stdio |
b2dad0e3 | 1131 | fi, |
8e2d9424 | 1132 | enable_cstdio=stdio) |
b2dad0e3 BK |
1133 | |
1134 | enable_cstdio_flag=$enable_cstdio | |
1135 | ||
8b8ab21c | 1136 | dnl Check if a valid I/O package |
b2dad0e3 | 1137 | case x${enable_cstdio_flag} in |
e26cb7ab | 1138 | xlibio) |
dd75251f BK |
1139 | CSTDIO_H=config/c_io_libio.h |
1140 | CSTDIO_CC=config/c_io_libio.cc | |
1141 | AC_MSG_RESULT(libio) | |
1142 | ||
1143 | # see if we are on a system with libio native (ie, linux) | |
1144 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1145 | ||
1146 | # Need to check and see what version of glibc is being used. If | |
1147 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1148 | # compile most of libio for linux systems. | |
1149 | if test x$has_libio = x"yes"; then | |
1150 | case "$target" in | |
1151 | *-*-linux*) | |
8b8ab21c BK |
1152 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1153 | AC_EGREP_CPP([ok], [ | |
1154 | #include <features.h> | |
1155 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1156 | ok | |
1157 | #endif | |
1158 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1159 | AC_MSG_RESULT($glibc_satisfactory) | |
1160 | ;; | |
dd75251f BK |
1161 | esac |
1162 | ||
8b8ab21c | 1163 | # XXX at the moment, admit defeat and force the recompilation |
f133a43e | 1164 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
8b8ab21c BK |
1165 | glibc_satisfactory=no |
1166 | ||
1167 | if test x$glibc_satisfactory = x"yes"; then | |
1168 | need_libio=no | |
8b8ab21c BK |
1169 | need_wlibio=no |
1170 | else | |
1171 | need_libio=yes | |
8b8ab21c BK |
1172 | # bkoz XXX need to add checks to enable this |
1173 | # pme XXX here's a first pass at such a check | |
1174 | if test x$enable_c_mbchar != xno; then | |
1175 | need_wlibio=yes | |
1176 | else | |
1177 | need_wlibio=no | |
1178 | fi | |
1179 | fi | |
dd75251f | 1180 | |
dd75251f | 1181 | else |
e7140677 | 1182 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
8b8ab21c | 1183 | need_libio=yes |
8b8ab21c BK |
1184 | # bkoz XXX need to add checks to enable this |
1185 | # pme XXX here's a first pass at such a check | |
1186 | if test x$enable_c_mbchar != xno; then | |
1187 | need_wlibio=yes | |
1188 | else | |
1189 | need_wlibio=no | |
1190 | fi | |
dd75251f BK |
1191 | fi |
1192 | ;; | |
e26cb7ab MM |
1193 | xstdio | x | xno | xnone | xyes) |
1194 | # default | |
9717c75c BK |
1195 | CSTDIO_H=config/c_io_stdio.h |
1196 | CSTDIO_CC=config/c_io_stdio.cc | |
1197 | AC_MSG_RESULT(stdio) | |
1198 | ||
e26cb7ab | 1199 | # We're not using stdio. |
dd75251f | 1200 | need_libio=no |
e26cb7ab MM |
1201 | need_wlibio=no |
1202 | # Wide characters are not supported with this package. | |
1203 | enable_c_mbchar=no | |
dd75251f BK |
1204 | ;; |
1205 | *) | |
1206 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1207 | exit 1 | |
1208 | ;; | |
b2dad0e3 | 1209 | esac |
5e53dba6 | 1210 | AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h) |
c4561450 | 1211 | AC_LINK_FILES($CSTDIO_CC, src/c++io.cc) |
8901ac21 BK |
1212 | |
1213 | # 2000-08-04 bkoz hack | |
1214 | CCODECVT_C=config/c_io_libio_codecvt.c | |
1215 | AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) | |
1216 | # 2000-08-04 bkoz hack | |
8b8ab21c | 1217 | |
85a011b0 PE |
1218 | AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, |
1219 | test "$need_libio" = yes || test "$need_wlibio" = yes) | |
b2dad0e3 | 1220 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
20427c6b | 1221 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
c4d3f801 | 1222 | if test "$need_libio" = yes || test "$need_wlibio" = yes; then |
4c07386b | 1223 | libio_la=../libio/libio.la |
c4d3f801 | 1224 | else |
4c07386b | 1225 | libio_la= |
c4d3f801 MM |
1226 | fi |
1227 | AC_SUBST(libio_la) | |
b2dad0e3 BK |
1228 | ]) |
1229 | ||
1230 | ||
1231 | dnl | |
8bd636c5 | 1232 | dnl Check for which threading library to use. |
b2dad0e3 BK |
1233 | dnl |
1234 | dnl GLIBCPP_ENABLE_THREADS | |
1235 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
1236 | dnl | |
8b8ab21c BK |
1237 | dnl Default is no threads, which also disables _IO_MTSAFE_IO in |
1238 | dnl libio. Any actual thread package will enable it. | |
b2dad0e3 BK |
1239 | dnl |
1240 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
1241 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
1242 | dnl Efforts should be made to keep this in sync. | |
1243 | AC_MSG_CHECKING([for threads package to use]) | |
1244 | AC_ARG_ENABLE(threads, | |
36e40658 BK |
1245 | [ --enable-threads enable thread usage for target GCC. |
1246 | --enable-threads=LIB use LIB thread package for target GCC. [default=no] | |
1247 | ], | |
b2dad0e3 BK |
1248 | if test x$enable_threads = xno; then |
1249 | enable_threads='' | |
1250 | fi, | |
1251 | enable_threads='') | |
1252 | ||
1253 | enable_threads_flag=$enable_threads | |
1254 | ||
1255 | dnl Check if a valid thread package | |
1256 | case x${enable_threads_flag} in | |
8b8ab21c BK |
1257 | x | xno | xnone) |
1258 | # No threads | |
1259 | target_thread_file='single' | |
1260 | ;; | |
1261 | xyes) | |
1262 | # default | |
d0941a31 | 1263 | target_thread_file='posix' |
8b8ab21c BK |
1264 | ;; |
1265 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
1266 | xsolaris | xwin32 | xdce | xvxworks) | |
1267 | target_thread_file=$enable_threads_flag | |
1268 | ;; | |
1269 | *) | |
1270 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1271 | exit 1 | |
1272 | ;; | |
b2dad0e3 BK |
1273 | esac |
1274 | ||
1275 | dnl Check for thread package actually supported in libstdc++ | |
e974e9cc | 1276 | THREADH= |
b2dad0e3 BK |
1277 | case "$target_thread_file" in |
1278 | no | none | single) | |
e974e9cc | 1279 | THREADH=threads-no.h |
b2dad0e3 BK |
1280 | ;; |
1281 | posix | pthreads) | |
e974e9cc | 1282 | THREADH=threads-posix.h |
b2dad0e3 BK |
1283 | ;; |
1284 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
1285 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
1286 | ;; | |
1287 | *) | |
d0941a31 | 1288 | AC_MSG_ERROR($THREADS is an unsupported/unknown thread package) |
b2dad0e3 BK |
1289 | ;; |
1290 | esac | |
e974e9cc | 1291 | AC_MSG_RESULT($THREADH) |
b2dad0e3 | 1292 | |
5e53dba6 | 1293 | AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h) |
8b8ab21c BK |
1294 | if test $THREADH != threads-no.h; then |
1295 | AC_DEFINE(_GLIBCPP_USE_THREADS) | |
1296 | fi | |
b2dad0e3 BK |
1297 | ]) |
1298 | ||
1299 | ||
1300 | dnl | |
8bd636c5 | 1301 | dnl Check for template specializations for the 'long long' type extension. |
b2dad0e3 BK |
1302 | dnl |
1303 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1304 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1305 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1306 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1307 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1308 | dnl defaults to `no'. | |
0137be2d | 1309 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. |
b2dad0e3 BK |
1310 | dnl |
1311 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1312 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1313 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
209fe19b | 1314 | |
b2dad0e3 BK |
1315 | AC_ARG_ENABLE(long-long, |
1316 | changequote(<<, >>)dnl | |
d0d88ce3 | 1317 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], |
b2dad0e3 BK |
1318 | changequote([, ])dnl |
1319 | [case "$enableval" in | |
1320 | yes) enable_long_long=yes ;; | |
1321 | no) enable_long_long=no ;; | |
1322 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1323 | esac], | |
1324 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
f4c79fef BK |
1325 | |
1326 | # Allow use of os-dependent settings, so that macros that turn on | |
1327 | # C99 capabilities can be defined and used in a consistent way. | |
1328 | OS_INC_PATH=${srcdir}/$os_include_dir | |
1329 | ac_test_CFLAGS="${CFLAGS+set}" | |
1330 | ac_save_CFLAGS="$CFLAGS" | |
1331 | CFLAGS="-I$OS_INC_PATH" | |
209fe19b | 1332 | |
f4c79fef | 1333 | # Check for the existence of functions used if long long is enabled. |
209fe19b BK |
1334 | AC_CHECK_FUNC(strtoll,,ac_strtoll=no) |
1335 | AC_CHECK_FUNC(strtoull,,ac_strtoull=no) | |
1336 | ||
f4c79fef BK |
1337 | # Check for lldiv_t, et. al. |
1338 | AC_MSG_CHECKING([for lldiv_t declaration]) | |
1339 | AC_CACHE_VAL(glibcpp_lldiv_t_use, [ | |
1340 | AC_TRY_COMPILE([#include <bits/os_defines.h> | |
4c07386b | 1341 | #include <stdlib.h>], |
f4c79fef BK |
1342 | [ lldiv_t mydivt;], |
1343 | [glibcpp_lldiv_t_use=yes], [glibcpp_lldiv_t_use=no]) | |
1344 | ]) | |
1345 | AC_MSG_RESULT($glibcpp_lldiv_t_use) | |
1346 | if test x$glibcpp_lldiv_t_use = x"yes"; then | |
a767e383 | 1347 | AC_DEFINE(HAVE_LLDIV_T) |
f4c79fef BK |
1348 | fi |
1349 | ||
3840fa2a | 1350 | AC_MSG_CHECKING([for enabled long long]) |
209fe19b | 1351 | if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then |
3840fa2a BK |
1352 | enable_long_long=no; |
1353 | fi; | |
d0d88ce3 | 1354 | AC_MSG_RESULT($enable_long_long) |
3840fa2a | 1355 | |
f4c79fef | 1356 | # Option parsed, now set things appropriately |
dcc41852 BK |
1357 | if test x"$enable_long_long" = xyes; then |
1358 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1359 | fi | |
4c07386b | 1360 | |
f4c79fef BK |
1361 | # Reset CFLAGS |
1362 | CFLAGS="$ac_save_CFLAGS" | |
b2dad0e3 BK |
1363 | ]) |
1364 | ||
1365 | ||
99246c90 | 1366 | dnl |
e3123ab3 BK |
1367 | dnl Check for what kind of C headers to use. |
1368 | dnl | |
1369 | dnl GLIBCPP_ENABLE_CHEADERS | |
1370 | dnl --enable-cheaders= [does stuff]. | |
1371 | dnl --disable-cheaders [does not do anything, really]. | |
1372 | dnl + This will eventually need to be 'c_shadow' by default. | |
1373 | dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] | |
1374 | dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. | |
1375 | dnl If ommitted, it defaults to `c_std'. | |
1376 | AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl | |
1377 | define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl | |
1378 | AC_MSG_CHECKING([for c header strategy to use]) | |
1379 | AC_ARG_ENABLE(cheaders, | |
99246c90 | 1380 | changequote(<<, >>)dnl |
e3123ab3 BK |
1381 | << --enable-cheaders construct "C" header files for |
1382 | g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], | |
5780a46b BK |
1383 | changequote([, ]) |
1384 | [case "$enableval" in | |
e3123ab3 | 1385 | c) |
9b8fd32c | 1386 | enable_cheaders=c |
8b8ab21c | 1387 | ;; |
e3123ab3 | 1388 | c_std) |
9b8fd32c | 1389 | enable_cheaders=c_std |
8b8ab21c | 1390 | ;; |
e3123ab3 | 1391 | c_shadow) |
9b8fd32c | 1392 | enable_cheaders=c_shadow |
e3123ab3 BK |
1393 | ;; |
1394 | *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) | |
8b8ab21c | 1395 | ;; |
5780a46b | 1396 | esac], |
e3123ab3 BK |
1397 | enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) |
1398 | AC_MSG_RESULT($enable_cheaders) | |
5780a46b BK |
1399 | |
1400 | dnl Option parsed, now set things appropriately | |
e3123ab3 BK |
1401 | case "$enable_cheaders" in |
1402 | c_shadow) | |
8b8ab21c | 1403 | CSHADOW_FLAGS="-fno-builtin" |
e3123ab3 | 1404 | C_INCLUDE_DIR='${top_srcdir}/include/c_shadow' |
0517cb99 | 1405 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
8b8ab21c | 1406 | ;; |
e3123ab3 BK |
1407 | c_std) |
1408 | CSHADOW_FLAGS="" | |
1409 | C_INCLUDE_DIR='${top_srcdir}/include/c_std' | |
1410 | ;; | |
1411 | c) | |
8b8ab21c BK |
1412 | CSHADOW_FLAGS="" |
1413 | C_INCLUDE_DIR='${top_srcdir}/include/c' | |
99246c90 | 1414 | ;; |
5780a46b | 1415 | esac |
5b80666b | 1416 | |
e466dc8a BK |
1417 | AC_SUBST(CSHADOW_FLAGS) |
1418 | AC_SUBST(C_INCLUDE_DIR) | |
e3123ab3 | 1419 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) |
99246c90 | 1420 | ]) |
b2dad0e3 | 1421 | |
8b8ab21c BK |
1422 | |
1423 | dnl | |
1424 | dnl Check for wide character support. Has the same effect as the option | |
1425 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1426 | dnl | |
1427 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1428 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1429 | dnl --disable-c-mbchar doesn't. | |
1430 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1431 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1432 | dnl defaults to `no'. | |
1433 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1434 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1435 | AC_ARG_ENABLE(c-mbchar, | |
1436 | changequote(<<, >>)dnl | |
1437 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1438 | changequote([, ])dnl | |
1439 | [case "$enableval" in | |
1440 | yes) enable_c_mbchar=yes ;; | |
1441 | no) enable_c_mbchar=no ;; | |
1442 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1443 | esac], | |
1444 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1445 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1446 | ]) | |
1447 | ||
1448 | ||
e466dc8a BK |
1449 | dnl |
1450 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1451 | dnl | |
1452 | dnl GLIBCPP_INCLUDE_DIR | |
1453 | dnl C_INCLUDE_DIR | |
1454 | dnl TOPLEVEL_INCLUDES | |
1455 | dnl LIBMATH_INCLUDES | |
1456 | dnl LIBSUPCXX_INCLUDES | |
1457 | dnl LIBIO_INCLUDES | |
1458 | dnl CSHADOW_INCLUDES | |
1459 | dnl | |
1460 | dnl GLIBCPP_EXPORT_INCLUDE | |
1461 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ | |
1462 | # Root level of the include sources. | |
1463 | GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' | |
1464 | ||
1465 | # Can either use include/c or include/c_std to grab "C" headers. This | |
1466 | # variable is set to the include directory currently in use. | |
e3123ab3 | 1467 | # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_CHEADERS |
e466dc8a | 1468 | |
9f935979 BK |
1469 | # Passed down for canadian crosses. |
1470 | if test x"$CANADIAN" = xyes; then | |
1471 | TOPLEVEL_INCLUDES='-I$(includedir)' | |
1472 | fi | |
e466dc8a BK |
1473 | |
1474 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1475 | ||
1476 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1477 | ||
1478 | #if GLIBCPP_NEED_LIBIO | |
1479 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1480 | #else | |
1481 | #LIBIO_INCLUDES='-I$(top_srcdir)/libio' | |
1482 | #endif | |
1483 | ||
1484 | #if GLIBCPP_USE_CSHADOW | |
1485 | # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ | |
1486 | # -I$(top_blddir)/cshadow' | |
1487 | #else | |
a40ba78e | 1488 | CSTD_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' |
e466dc8a BK |
1489 | #endif |
1490 | ||
1491 | # Now, export this to all the little Makefiles.... | |
1492 | AC_SUBST(GLIBCPP_INCLUDE_DIR) | |
1493 | AC_SUBST(TOPLEVEL_INCLUDES) | |
1494 | AC_SUBST(LIBMATH_INCLUDES) | |
1495 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
1496 | AC_SUBST(LIBIO_INCLUDES) | |
a40ba78e | 1497 | AC_SUBST(CSTD_INCLUDES) |
e466dc8a BK |
1498 | ]) |
1499 | ||
1500 | ||
1501 | dnl | |
1502 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1503 | dnl | |
1504 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1505 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1506 | # uncomment the lines below and make, everything else is ready to go... | |
1507 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1508 | OPTIMIZE_CXXFLAGS= | |
1509 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1510 | ||
1511 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1512 | AC_SUBST(WARN_FLAGS) | |
1513 | ]) | |
1514 | ||
72ed2836 | 1515 | dnl |
43ba4a58 BK |
1516 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
1517 | dnl calculates gxx_install_dir | |
72ed2836 BK |
1518 | dnl exports glibcpp_toolexecdir |
1519 | dnl exports glibcpp_toolexeclibdir | |
1520 | dnl | |
1521 | dnl Assumes cross_compiling bits already done, and with_cross_host in | |
1522 | dnl particular | |
43ba4a58 | 1523 | dnl |
72ed2836 | 1524 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
43ba4a58 BK |
1525 | AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [ |
1526 | ||
72ed2836 BK |
1527 | glibcpp_toolexecdir=no |
1528 | glibcpp_toolexeclibdir=no | |
1529 | ||
43ba4a58 BK |
1530 | AC_MSG_CHECKING([for interface version number]) |
1531 | libstdcxx_interface=$INTERFACE | |
1532 | AC_MSG_RESULT($libstdcxx_interface) | |
1533 | ||
1534 | # Process the option --with-gxx-include-dir=<path to include-files directory> | |
1535 | AC_MSG_CHECKING([for --with-gxx-include-dir]) | |
1536 | AC_ARG_WITH(gxx-include-dir, | |
1537 | [ --with-gxx-include-dir the installation directory for include files], | |
1538 | [case "${withval}" in | |
1539 | yes) | |
1540 | AC_MSG_ERROR(Missing directory for --with-gxx-include-dir) | |
1541 | gxx_include_dir=no | |
1542 | ;; | |
1543 | no) | |
1544 | gxx_include_dir=no | |
1545 | ;; | |
1546 | *) | |
1547 | gxx_include_dir=${withval} | |
1548 | ;; | |
1549 | esac], [gxx_include_dir=no]) | |
1550 | AC_MSG_RESULT($gxx_include_dir) | |
1551 | ||
1552 | # Process the option "--enable-version-specific-runtime-libs" | |
1553 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
1554 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
1555 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
1556 | [ version_specific_libs=yes | |
1557 | # Need the gcc compiler version to know where to install libraries | |
1558 | # and header files if --enable-version-specific-runtime-libs option | |
1559 | # is selected. | |
1560 | changequote(,)dnl | |
72ed2836 BK |
1561 | gcc_version_trigger=${srcdir}/../gcc/version.c |
1562 | gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` | |
1563 | gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` | |
1564 | gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++ | |
1565 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1566 | glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version} | |
43ba4a58 | 1567 | changequote([,])dnl |
43ba4a58 BK |
1568 | ],version_specific_libs=no) |
1569 | AC_MSG_RESULT($version_specific_libs) | |
1570 | ||
72ed2836 | 1571 | # Default case for install directory for include files. |
43ba4a58 BK |
1572 | if test x"$version_specific_libs" = x"no" \ |
1573 | && test x"$gxx_include_dir"=x"no"; then | |
72ed2836 BK |
1574 | gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface} |
1575 | fi | |
1576 | ||
1577 | # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir | |
1578 | # Install a library built with a cross compiler in tooldir, not libdir. | |
1579 | if test x"$glibcpp_toolexecdir" = x"no"; then | |
1580 | if test x"$with_cross_host" = x"yes"; then | |
1581 | glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)' | |
1582 | glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)' | |
1583 | else | |
1584 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1585 | glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)' | |
1586 | fi | |
43ba4a58 | 1587 | fi |
72ed2836 BK |
1588 | |
1589 | AC_MSG_CHECKING([for install location]) | |
43ba4a58 | 1590 | AC_MSG_RESULT($gxx_include_dir) |
72ed2836 | 1591 | |
43ba4a58 | 1592 | AC_SUBST(gxx_include_dir) |
72ed2836 BK |
1593 | AC_SUBST(glibcpp_toolexecdir) |
1594 | AC_SUBST(glibcpp_toolexeclibdir) | |
43ba4a58 BK |
1595 | ]) |
1596 | ||
1597 | ||
af9fe0d1 BK |
1598 | # Check whether LC_MESSAGES is available in <locale.h>. |
1599 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1600 | # | |
1601 | # This file file be copied and used freely without restrictions. It can | |
1602 | # be used in projects which are not available under the GNU Public License | |
1603 | # but which still want to provide support for the GNU gettext functionality. | |
1604 | # Please note that the actual code is *not* freely available. | |
1605 | ||
1606 | # serial 1 | |
1607 | ||
819004bb BK |
1608 | AC_DEFUN(AC_LC_MESSAGES, [ |
1609 | AC_CHECK_HEADER(locale.h, [ | |
af9fe0d1 BK |
1610 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, |
1611 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1612 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1613 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1614 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1615 | fi | |
819004bb BK |
1616 | ]) |
1617 | ]) | |
af9fe0d1 BK |
1618 | |
1619 | ||
1620 | # Check for functions in math library. | |
1621 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1622 | # | |
1623 | # This file can be copied and used freely without restrictions. It can | |
1624 | # be used in projects which are not available under the GNU Public License | |
1625 | # but which still want to provide support for the GNU gettext functionality. | |
1626 | # Please note that the actual code is *not* freely available. | |
1627 | ||
1628 | # serial 1 | |
1629 | ||
1630 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1631 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1632 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1633 | AC_SUBST(LIBMATHOBJS)dnl | |
1634 | ]) | |
1635 | ||
1636 | ||
1637 | # Check for string functions. | |
1638 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1639 | # | |
1640 | # This file can be copied and used freely without restrictions. It can | |
1641 | # be used in projects which are not available under the GNU Public License | |
1642 | # but which still want to provide support for the GNU gettext functionality. | |
1643 | # Please note that the actual code is *not* freely available. | |
1644 | ||
1645 | # serial 1 | |
1646 | ||
1647 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1648 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1649 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1650 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1651 | ]) | |
b2dad0e3 | 1652 | |
29bd52c8 PE |
1653 | |
1654 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1655 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1656 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1657 | dnl which cannot be handled by other versions of make. The variable |
1658 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1659 | dnl the empty string otherwise. | |
1660 | dnl | |
1661 | dnl Here is an example of its use: | |
1662 | dnl | |
1663 | dnl Makefile.in might contain: | |
1664 | dnl | |
1665 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1666 | dnl $(DEPEND): | |
1667 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1668 | dnl | |
1669 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1670 | dnl @ifGNUmake@ include $(DEPEND) | |
1671 | dnl @ifGNUmake@ endif | |
1672 | dnl | |
1673 | dnl Then configure.in would normally contain: | |
1674 | dnl | |
1675 | dnl CHECK_GNU_MAKE() | |
1676 | dnl AC_OUTPUT(Makefile) | |
1677 | dnl | |
1678 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1679 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1680 | dnl | |
1681 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1682 | dnl mv Makefile GNUmakefile | |
1683 | dnl echo .DEFAULT: > Makefile ; | |
1684 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1685 | dnl fi | |
1686 | dnl | |
1687 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1688 | dnl exists, then the other make wraps the GNU make. | |
1689 | dnl | |
1690 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1691 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1692 | dnl |
1693 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1694 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1695 | dnl #### conditional's subshell (" --version" is not a command), using a |
1696 | dnl #### different option to grep(1). | |
29bd52c8 | 1697 | dnl #### -pme |
57d278be MS |
1698 | dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not |
1699 | dnl #### ${MAKE:-make}). | |
1700 | dnl #### -msokolov | |
29bd52c8 PE |
1701 | AC_DEFUN( |
1702 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1703 | _cv_gnu_make_command='' ; | |
1704 | dnl Search all the common names for GNU make | |
57d278be | 1705 | for a in "${MAKE-make}" make gmake gnumake ; do |
626d8f0a | 1706 | if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) |
79f5e38e | 1707 | then |
29bd52c8 PE |
1708 | _cv_gnu_make_command=$a ; |
1709 | break; | |
1710 | fi | |
1711 | done ; | |
1712 | ) ; | |
1713 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1714 | dnl string, '#' otherwise | |
1715 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1716 | ifGNUmake='' ; | |
1717 | else | |
1718 | ifGNUmake='#' ; | |
1719 | fi | |
1720 | AC_SUBST(ifGNUmake) | |
1721 | ]) | |
1722 | ||
3df64633 AO |
1723 | sinclude(../libtool.m4) |
1724 | dnl The lines below arrange for aclocal not to bring an installed | |
1725 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1726 | dnl add a definition of LIBTOOL to Makefile.in. | |
1727 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1728 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1729 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1730 | AC_DEFUN([AC_PROG_LD]) | |
1731 | ]) | |
7f586614 | 1732 | |
9a200b0a | 1733 | |
b2dad0e3 BK |
1734 | # Do all the work for Automake. This macro actually does too much -- |
1735 | # some checks are only needed if your package does certain things. | |
1736 | # But this isn't really a big deal. | |
1737 | ||
1738 | # serial 1 | |
1739 | ||
1740 | dnl Usage: | |
1741 | dnl AM_INIT_AUTOMAKE(package,version, [no-define]) | |
1742 | ||
1743 | AC_DEFUN(AM_INIT_AUTOMAKE, | |
1744 | [AC_REQUIRE([AC_PROG_INSTALL]) | |
1745 | PACKAGE=[$1] | |
1746 | AC_SUBST(PACKAGE) | |
1747 | VERSION=[$2] | |
1748 | AC_SUBST(VERSION) | |
1749 | dnl test to see if srcdir already configured | |
1750 | if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then | |
1751 | AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) | |
1752 | fi | |
1753 | ifelse([$3],, | |
1754 | AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) | |
1755 | AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])) | |
1756 | AC_REQUIRE([AM_SANITY_CHECK]) | |
1757 | AC_REQUIRE([AC_ARG_PROGRAM]) | |
1758 | dnl FIXME This is truly gross. | |
1759 | missing_dir=`cd $ac_aux_dir && pwd` | |
1760 | AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) | |
1761 | AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) | |
1762 | AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) | |
1763 | AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) | |
1764 | AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) | |
1765 | AC_REQUIRE([AC_PROG_MAKE_SET])]) | |
1766 | ||
1767 | # | |
1768 | # Check to make sure that the build environment is sane. | |
1769 | # | |
1770 | ||
1771 | AC_DEFUN(AM_SANITY_CHECK, | |
1772 | [AC_MSG_CHECKING([whether build environment is sane]) | |
1773 | # Just in case | |
1774 | sleep 1 | |
1775 | echo timestamp > conftestfile | |
1776 | # Do `set' in a subshell so we don't clobber the current shell's | |
1777 | # arguments. Must try -L first in case configure is actually a | |
1778 | # symlink; some systems play weird games with the mod time of symlinks | |
1779 | # (eg FreeBSD returns the mod time of the symlink's containing | |
1780 | # directory). | |
1781 | if ( | |
1782 | set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null` | |
1783 | if test "[$]*" = "X"; then | |
1784 | # -L didn't work. | |
1785 | set X `ls -t $srcdir/configure conftestfile` | |
1786 | fi | |
1787 | if test "[$]*" != "X $srcdir/configure conftestfile" \ | |
1788 | && test "[$]*" != "X conftestfile $srcdir/configure"; then | |
1789 | ||
1790 | # If neither matched, then we have a broken ls. This can happen | |
1791 | # if, for instance, CONFIG_SHELL is bash and it inherits a | |
1792 | # broken ls alias from the environment. This has actually | |
1793 | # happened. Such a system could not be considered "sane". | |
1794 | AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken | |
1795 | alias in your environment]) | |
1796 | fi | |
1797 | ||
1798 | test "[$]2" = conftestfile | |
1799 | ) | |
1800 | then | |
1801 | # Ok. | |
1802 | : | |
1803 | else | |
1804 | AC_MSG_ERROR([newly created file is older than distributed files! | |
1805 | Check your system clock]) | |
1806 | fi | |
1807 | rm -f conftest* | |
1808 | AC_MSG_RESULT(yes)]) | |
1809 | ||
1810 | dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) | |
1811 | dnl The program must properly implement --version. | |
1812 | AC_DEFUN(AM_MISSING_PROG, | |
1813 | [AC_MSG_CHECKING(for working $2) | |
1814 | # Run test in a subshell; some versions of sh will print an error if | |
1815 | # an executable is not found, even if stderr is redirected. | |
1816 | # Redirect stdin to placate older versions of autoconf. Sigh. | |
1817 | if ($2 --version) < /dev/null > /dev/null 2>&1; then | |
1818 | $1=$2 | |
1819 | AC_MSG_RESULT(found) | |
1820 | else | |
1821 | $1="$3/missing $2" | |
1822 | AC_MSG_RESULT(missing) | |
1823 | fi | |
1824 | AC_SUBST($1)]) | |
1825 | ||
1826 | # Add --enable-maintainer-mode option to configure. | |
1827 | # From Jim Meyering | |
1828 | ||
1829 | # serial 1 | |
1830 | ||
1831 | AC_DEFUN(AM_MAINTAINER_MODE, | |
1832 | [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
1833 | dnl maintainer-mode is disabled by default | |
1834 | AC_ARG_ENABLE(maintainer-mode, | |
1835 | [ --enable-maintainer-mode enable make rules and dependencies not useful | |
1836 | (and sometimes confusing) to the casual installer], | |
1837 | USE_MAINTAINER_MODE=$enableval, | |
1838 | USE_MAINTAINER_MODE=no) | |
1839 | AC_MSG_RESULT($USE_MAINTAINER_MODE) | |
1840 | AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes) | |
1841 | MAINT=$MAINTAINER_MODE_TRUE | |
1842 | AC_SUBST(MAINT)dnl | |
1843 | ] | |
1844 | ) | |
1845 | ||
1846 | # Define a conditional. | |
1847 | ||
1848 | AC_DEFUN(AM_CONDITIONAL, | |
1849 | [AC_SUBST($1_TRUE) | |
1850 | AC_SUBST($1_FALSE) | |
1851 | if $2; then | |
1852 | $1_TRUE= | |
1853 | $1_FALSE='#' | |
1854 | else | |
1855 | $1_TRUE='#' | |
1856 | $1_FALSE= | |
1857 | fi]) | |
1858 | ||
b2dad0e3 BK |
1859 | # Like AC_CONFIG_HEADER, but automatically create stamp file. |
1860 | ||
1861 | AC_DEFUN(AM_CONFIG_HEADER, | |
1862 | [AC_PREREQ([2.12]) | |
1863 | AC_CONFIG_HEADER([$1]) | |
1864 | dnl When config.status generates a header, we must update the stamp-h file. | |
1865 | dnl This file resides in the same directory as the config header | |
1866 | dnl that is generated. We must strip everything past the first ":", | |
1867 | dnl and everything past the last "/". | |
1868 | AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl | |
1869 | ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, | |
1870 | <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, | |
1871 | <<am_indx=1 | |
1872 | for am_file in <<$1>>; do | |
1873 | case " <<$>>CONFIG_HEADERS " in | |
1874 | *" <<$>>am_file "*<<)>> | |
1875 | echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx | |
1876 | ;; | |
1877 | esac | |
1878 | am_indx=`expr "<<$>>am_indx" + 1` | |
1879 | done<<>>dnl>>) | |
1880 | changequote([,]))]) | |
1881 |