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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 | |
b2dad0e3 BK |
16 | dnl GLIBCPP_CONFIGURE |
17 | AC_DEFUN(GLIBCPP_CONFIGURE, [ | |
18 | dnl Default to --enable-multilib | |
19 | AC_ARG_ENABLE(multilib, | |
20 | [ --enable-multilib build hella library versions (default)], | |
21 | [case "${enableval}" in | |
22 | yes) multilib=yes ;; | |
23 | no) multilib=no ;; | |
24 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
25 | esac], [multilib=yes])dnl | |
26 | ||
1de9b822 | 27 | glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3 |
b2dad0e3 BK |
28 | AC_SUBST(glibcpp_basedir) |
29 | ||
dd48b185 | 30 | AM_INIT_AUTOMAKE(libstdc++, 3.0.0) |
b2dad0e3 | 31 | |
28861379 BK |
32 | # Never versions of autoconf add an underscore to these functions. |
33 | # Prevent future problems ... | |
34 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
35 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
36 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
37 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
5780a46b BK |
38 | |
39 | # AC_PROG_CC | |
40 | ||
b2dad0e3 BK |
41 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
42 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
43 | # are probably using a cross compiler, which will not be able to fully | |
44 | # link an executable. This should really be fixed in autoconf | |
45 | # itself. | |
46 | ||
47 | AC_DEFUN(LIB_AC_PROG_CC, | |
48 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
49 | dnl Fool anybody using AC_PROG_CC. | |
50 | AC_PROVIDE([AC_PROG_CC]) | |
51 | AC_CHECK_PROG(CC, gcc, gcc) | |
52 | if test -z "$CC"; then | |
53 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
54 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
55 | fi | |
56 | ||
57 | AC_PROG_CC_GNU | |
58 | ||
59 | if test $ac_cv_prog_gcc = yes; then | |
60 | GCC=yes | |
61 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
62 | dnl plays around with CFLAGS (such as to build both debugging and | |
63 | dnl normal versions of a library), tasteless as that idea is. | |
64 | ac_test_CFLAGS="${CFLAGS+set}" | |
65 | ac_save_CFLAGS="$CFLAGS" | |
66 | CFLAGS= | |
67 | AC_PROG_CC_G | |
68 | if test "$ac_test_CFLAGS" = set; then | |
69 | CFLAGS="$ac_save_CFLAGS" | |
70 | elif test $ac_cv_prog_cc_g = yes; then | |
71 | CFLAGS="-g -O2" | |
72 | else | |
73 | CFLAGS="-O2" | |
74 | fi | |
75 | else | |
76 | GCC= | |
77 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
78 | fi | |
79 | ]) | |
80 | ||
81 | LIB_AC_PROG_CC | |
82 | ||
5780a46b BK |
83 | # Can't just call these here as g++ requires libstc++ to be built.... |
84 | # AC_PROG_CXX | |
85 | ||
b2dad0e3 BK |
86 | # Likewise for AC_PROG_CXX. |
87 | AC_DEFUN(LIB_AC_PROG_CXX, | |
88 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
89 | dnl Fool anybody using AC_PROG_CXX. | |
90 | AC_PROVIDE([AC_PROG_CXX]) | |
46840bcd | 91 | # Use glibcpp_CXX so that we do not cause CXX to be cached with the |
de9aefe0 | 92 | # flags that come in CXX while configuring libstdc++. They're different |
bb4127f8 MM |
93 | # from those used for all other target libraries. If CXX is set in |
94 | # the environment, respect that here. | |
46840bcd BK |
95 | glibcpp_CXX=$CXX |
96 | AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) | |
97 | AC_SUBST(glibcpp_CXX) | |
337187ff | 98 | CXX=$glibcpp_CXX |
46840bcd | 99 | test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) |
b2dad0e3 BK |
100 | |
101 | AC_PROG_CXX_GNU | |
102 | ||
103 | if test $ac_cv_prog_gxx = yes; then | |
104 | GXX=yes | |
105 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
106 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
107 | dnl normal versions of a library), tasteless as that idea is. | |
108 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
109 | ac_save_CXXFLAGS="$CXXFLAGS" | |
110 | CXXFLAGS= | |
111 | AC_PROG_CXX_G | |
112 | if test "$ac_test_CXXFLAGS" = set; then | |
113 | CXXFLAGS="$ac_save_CXXFLAGS" | |
114 | elif test $ac_cv_prog_cxx_g = yes; then | |
115 | CXXFLAGS="-g -O2" | |
116 | else | |
117 | CXXFLAGS="-O2" | |
118 | fi | |
119 | else | |
120 | GXX= | |
121 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
122 | fi | |
123 | ]) | |
124 | ||
125 | LIB_AC_PROG_CXX | |
126 | ||
5780a46b BK |
127 | AC_CHECK_TOOL(AS, as) |
128 | AC_CHECK_TOOL(AR, ar) | |
46840bcd | 129 | AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) |
5780a46b | 130 | AC_PROG_INSTALL |
b2dad0e3 | 131 | |
5780a46b | 132 | AM_MAINTAINER_MODE |
b2dad0e3 | 133 | |
5780a46b BK |
134 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
135 | # at least currently, we never actually build a program, so we never | |
136 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
137 | # fails, because we are probably configuring with a cross compiler | |
138 | # which cant create executables. So we include AC_EXEEXT to keep | |
139 | # automake happy, but we dont execute it, since we dont care about | |
140 | # the result. | |
141 | if false; then | |
61c71946 BK |
142 | # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands |
143 | # to nothing, so nothing would remain between `then' and `fi' if it | |
144 | # were not for the `:' below. | |
145 | : | |
5780a46b BK |
146 | AC_EXEEXT |
147 | fi | |
b2dad0e3 | 148 | |
5780a46b BK |
149 | . [$]{glibcpp_basedir}/configure.host |
150 | ||
151 | case [$]{glibcpp_basedir} in | |
6f87af20 | 152 | /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; |
5780a46b BK |
153 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; |
154 | esac | |
b2dad0e3 | 155 | |
d0941a31 | 156 | # This does for the target what configure.host does for the host. In |
5e3cbe0b | 157 | # addition to possibly modifying the same flags, it also sets up symlinks. |
d0941a31 | 158 | GLIBCPP_CHECK_TARGET |
b2dad0e3 BK |
159 | ]) |
160 | ||
161 | ||
162 | dnl | |
8bd636c5 | 163 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
164 | dnl specific precautions need to be taken. |
165 | dnl | |
166 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
167 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
44382959 BK |
168 | if test ! -f stamp-sanity-compiler; then |
169 | AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) | |
170 | AC_LANG_SAVE | |
171 | AC_LANG_CPLUSPLUS | |
1d855e87 BK |
172 | AC_TRY_COMPILE(, [ |
173 | #if __GNUC__ < 3 | |
174 | not_ok | |
c470c17d | 175 | #endif |
6a163d7c | 176 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above])) |
44382959 | 177 | AC_LANG_RESTORE |
c470c17d | 178 | AC_MSG_RESULT($gpp_satisfactory) |
44382959 BK |
179 | touch stamp-sanity-compiler |
180 | fi | |
c470c17d BK |
181 | ]) |
182 | ||
183 | ||
184 | dnl | |
52b55e7d PE |
185 | dnl Tests for newer compiler features, or features that are present in newer |
186 | dnl compiler versions but not older compiler versions still in use, should | |
187 | dnl be placed here. | |
b2dad0e3 | 188 | dnl |
7f586614 BK |
189 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
190 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
191 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 192 | dnl |
c470c17d | 193 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
c21b6f87 PE |
194 | dnl compiler supports it and the user has not requested debug mode. |
195 | dnl | |
c470c17d BK |
196 | dnl GLIBCPP_CHECK_COMPILER_FEATURES |
197 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 | 198 | # All these tests are for C++; save the language and the compiler flags. |
52b55e7d | 199 | # The CXXFLAGS thing is suspicious, but based on similar bits previously |
a4e99046 PE |
200 | # found in GLIBCPP_CONFIGURE. |
201 | AC_LANG_SAVE | |
202 | AC_LANG_CPLUSPLUS | |
203 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
204 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 205 | |
7f586614 BK |
206 | # Check for maintainer-mode bits. |
207 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
208 | WERROR='' | |
8bd636c5 | 209 | else |
7f586614 | 210 | WERROR='-Werror' |
8bd636c5 PE |
211 | fi |
212 | ||
c470c17d BK |
213 | # Check for -ffunction-sections -fdata-sections |
214 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 215 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
216 | AC_TRY_COMPILE(, [int foo; |
217 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
218 | if test "$ac_test_CXXFLAGS" = set; then | |
219 | CXXFLAGS="$ac_save_CXXFLAGS" | |
220 | else | |
221 | # this is the suspicious part | |
222 | CXXFLAGS='' | |
223 | fi | |
a0cb1aa7 PE |
224 | if test x"$ac_fdsections" = x"yes" && |
225 | test x"$enable_debug" = x"no"; then | |
c470c17d BK |
226 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
227 | fi | |
228 | AC_MSG_RESULT($ac_fdsections) | |
229 | ||
a4e99046 | 230 | AC_LANG_RESTORE |
8bd636c5 | 231 | AC_SUBST(WERROR) |
c470c17d | 232 | AC_SUBST(SECTION_FLAGS) |
b2dad0e3 BK |
233 | ]) |
234 | ||
c470c17d BK |
235 | |
236 | dnl | |
421173e6 PE |
237 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
238 | dnl the native linker is in use, all variables will be defined to something | |
239 | dnl safe (like an empty string). | |
240 | dnl | |
241 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
242 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 243 | dnl |
c470c17d BK |
244 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
245 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
246 | # If we're not using GNU ld, then there's no point in even trying these |
247 | # tests. Check for that first. We should have already tested for gld | |
248 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
249 | SECTION_LDFLAGS='' |
250 | OPT_LDFLAGS='' | |
421173e6 | 251 | AC_REQUIRE([AC_PROG_LD]) |
e7140677 BK |
252 | |
253 | # Set --gc-sections. | |
f4c79fef | 254 | if test "$ac_cv_prog_gnu_ld" = "notbroken"; then |
a9117427 | 255 | # GNU ld it is! Joy and bunny rabbits! |
421173e6 PE |
256 | |
257 | # All these tests are for C++; save the language and the compiler flags. | |
258 | # Need to do this so that g++ won't try to link in libstdc++ | |
259 | ac_test_CFLAGS="${CFLAGS+set}" | |
260 | ac_save_CFLAGS="$CFLAGS" | |
e7140677 | 261 | CFLAGS='-x c++ -Wl,--gc-sections' |
421173e6 PE |
262 | |
263 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
264 | # XXX This test is broken at the moment, as symbols required for |
265 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
266 | # this test has cored on solaris in the past. In addition, |
267 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
268 | # used sections, first .eh_frame and now some of the glibc sections for | |
269 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
270 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
271 | AC_TRY_RUN([ | |
272 | int main(void) | |
273 | { | |
a9117427 BK |
274 | try { throw 1; } |
275 | catch (...) { }; | |
421173e6 PE |
276 | return 0; |
277 | } | |
e466dc8a | 278 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
279 | if test "$ac_test_CFLAGS" = set; then |
280 | CFLAGS="$ac_save_CFLAGS" | |
281 | else | |
282 | # this is the suspicious part | |
283 | CFLAGS='' | |
284 | fi | |
285 | if test "$ac_sectionLDflags" = "yes"; then | |
e7140677 | 286 | SECTION_LDFLAGS='-Wl,--gc-sections' |
421173e6 PE |
287 | fi |
288 | AC_MSG_RESULT($ac_sectionLDflags) | |
e7140677 | 289 | fi |
a9117427 | 290 | |
e7140677 | 291 | # Set linker optimization flags. |
a0cb1aa7 PE |
292 | if test x"$ac_cv_prog_gnu_ld" = x"yes" && |
293 | test x"$enable_debug" = x"no"; then | |
421173e6 | 294 | OPT_LDFLAGS='-Wl,-O1' |
421173e6 | 295 | fi |
e7140677 | 296 | |
c470c17d | 297 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 298 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
299 | ]) |
300 | ||
301 | ||
b2dad0e3 | 302 | dnl |
11fc1858 | 303 | dnl Check to see if the (math function) argument passed is |
f8db4f20 | 304 | dnl declared when using the c++ compiler |
38bd7296 BK |
305 | dnl ASSUMES argument is a math function with ONE parameter |
306 | dnl | |
f8db4f20 BK |
307 | dnl GLIBCPP_CHECK_MATH_DECL_1 |
308 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [ | |
38bd7296 | 309 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
310 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
311 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
312 | AC_LANG_SAVE | |
313 | AC_LANG_CPLUSPLUS | |
01a49191 RB |
314 | AC_TRY_COMPILE([#include <math.h> |
315 | #ifdef HAVE_IEEEFP_H | |
316 | #include <ieeefp.h> | |
317 | #endif | |
318 | ], | |
f84ef7fb PE |
319 | [ $1(0);], |
320 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
321 | AC_LANG_RESTORE | |
322 | ]) | |
323 | fi | |
421173e6 | 324 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
325 | ]) |
326 | ||
327 | dnl | |
328 | dnl Check to see if the (math function) argument passed is | |
329 | dnl 1) declared when using the c++ compiler | |
330 | dnl 2) has "C" linkage | |
331 | dnl 3) if not, see if 1) and 2) for argument prepended with '_' | |
332 | dnl | |
333 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
334 | dnl | |
335 | dnl argument 1 is name of function to check | |
336 | dnl | |
337 | dnl ASSUMES argument is a math function with ONE parameter | |
338 | dnl | |
339 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
340 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
341 | GLIBCPP_CHECK_MATH_DECL_1($1) | |
421173e6 | 342 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 343 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
344 | else |
345 | GLIBCPP_CHECK_MATH_DECL_1(_$1) | |
346 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
347 | AC_CHECK_FUNCS(_$1) | |
a0cb1aa7 | 348 | fi |
38bd7296 BK |
349 | fi |
350 | ]) | |
351 | ||
f8db4f20 | 352 | |
20b11783 MM |
353 | dnl |
354 | dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of | |
355 | dnl of functions at once. It's an all-or-nothing check -- either | |
9b8fd32c | 356 | dnl HAVE_XYZ is defined for each of the functions, or for none of them. |
20b11783 MM |
357 | dnl Doing it this way saves significant configure time. |
358 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ | |
359 | AC_MSG_CHECKING([for $1 functions]) | |
360 | AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ | |
361 | AC_LANG_SAVE | |
362 | AC_LANG_CPLUSPLUS | |
363 | AC_TRY_COMPILE([#include <math.h>], | |
364 | [ `for x in $3; do echo "$x (0);"; done` ], | |
9b8fd32c PE |
365 | [glibcpp_cv_func_$2_use=yes], |
366 | [glibcpp_cv_func_$2_use=no]) | |
20b11783 MM |
367 | AC_LANG_RESTORE]) |
368 | AC_MSG_RESULT($glibcpp_cv_func_$2_use) | |
369 | if test x$glibcpp_cv_func_$2_use = x"yes"; then | |
370 | AC_CHECK_FUNCS($3) | |
371 | fi | |
372 | ]) | |
38bd7296 BK |
373 | |
374 | dnl | |
11fc1858 | 375 | dnl Check to see if the (math function) argument passed is |
f8db4f20 | 376 | dnl declared when using the c++ compiler |
52b55e7d | 377 | dnl ASSUMES argument is a math function with TWO parameters |
38bd7296 | 378 | dnl |
f8db4f20 BK |
379 | dnl GLIBCPP_CHECK_MATH_DECL_2 |
380 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [ | |
38bd7296 | 381 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
382 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
383 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
384 | AC_LANG_SAVE | |
385 | AC_LANG_CPLUSPLUS | |
386 | AC_TRY_COMPILE([#include <math.h>], | |
387 | [ $1(0, 0);], | |
388 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
389 | AC_LANG_RESTORE | |
390 | ]) | |
391 | fi | |
421173e6 | 392 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
38bd7296 BK |
393 | ]) |
394 | ||
38bd7296 | 395 | dnl |
11fc1858 | 396 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
397 | dnl 1) declared when using the c++ compiler |
398 | dnl 2) has "C" linkage | |
399 | dnl | |
400 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
401 | dnl | |
402 | dnl argument 1 is name of function to check | |
403 | dnl | |
f8db4f20 | 404 | dnl ASSUMES argument is a math function with TWO parameters |
38bd7296 | 405 | dnl |
f8db4f20 BK |
406 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 |
407 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
408 | GLIBCPP_CHECK_MATH_DECL_2($1) | |
409 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
410 | AC_CHECK_FUNCS($1) | |
411 | else | |
412 | GLIBCPP_CHECK_MATH_DECL_2(_$1) | |
413 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
414 | AC_CHECK_FUNCS(_$1) | |
a0cb1aa7 | 415 | fi |
f8db4f20 BK |
416 | fi |
417 | ]) | |
418 | ||
419 | ||
420 | dnl | |
421 | dnl Check to see if the (math function) argument passed is | |
422 | dnl declared when using the c++ compiler | |
52b55e7d | 423 | dnl ASSUMES argument is a math function with THREE parameters |
f8db4f20 BK |
424 | dnl |
425 | dnl GLIBCPP_CHECK_MATH_DECL_3 | |
426 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [ | |
38bd7296 | 427 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
428 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
429 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
430 | AC_LANG_SAVE | |
431 | AC_LANG_CPLUSPLUS | |
432 | AC_TRY_COMPILE([#include <math.h>], | |
433 | [ $1(0, 0, 0);], | |
434 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
435 | AC_LANG_RESTORE | |
436 | ]) | |
437 | fi | |
421173e6 | 438 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
439 | ]) |
440 | ||
441 | dnl | |
442 | dnl Check to see if the (math function) argument passed is | |
443 | dnl 1) declared when using the c++ compiler | |
444 | dnl 2) has "C" linkage | |
445 | dnl | |
446 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
447 | dnl | |
448 | dnl argument 1 is name of function to check | |
449 | dnl | |
450 | dnl ASSUMES argument is a math function with THREE parameters | |
451 | dnl | |
452 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
453 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
454 | GLIBCPP_CHECK_MATH_DECL_3($1) | |
421173e6 | 455 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 456 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
457 | else |
458 | GLIBCPP_CHECK_MATH_DECL_3(_$1) | |
459 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
460 | AC_CHECK_FUNCS(_$1) | |
a0cb1aa7 | 461 | fi |
38bd7296 BK |
462 | fi |
463 | ]) | |
464 | ||
465 | ||
e7140677 BK |
466 | dnl |
467 | dnl Check to see if the (stdlib function) argument passed is | |
468 | dnl 1) declared when using the c++ compiler | |
469 | dnl 2) has "C" linkage | |
470 | dnl | |
e7140677 BK |
471 | dnl argument 1 is name of function to check |
472 | dnl | |
473 | dnl ASSUMES argument is a math function with TWO parameters | |
474 | dnl | |
475 | dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 | |
476 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ | |
477 | AC_MSG_CHECKING([for $1 declaration]) | |
f84ef7fb PE |
478 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
479 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
480 | AC_LANG_SAVE | |
481 | AC_LANG_CPLUSPLUS | |
482 | AC_TRY_COMPILE([#include <stdlib.h>], | |
483 | [ $1(0, 0);], | |
484 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
485 | AC_LANG_RESTORE | |
486 | ]) | |
487 | fi | |
e7140677 BK |
488 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
489 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
490 | AC_CHECK_FUNCS($1) | |
491 | fi | |
492 | ]) | |
493 | ||
494 | ||
11fc1858 BK |
495 | dnl |
496 | dnl Because the builtins are picky picky picky about the arguments they take, | |
497 | dnl do an explict linkage tests here. | |
498 | dnl Check to see if the (math function) argument passed is | |
499 | dnl 1) declared when using the c++ compiler | |
500 | dnl 2) has "C" linkage | |
501 | dnl | |
502 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
503 | dnl | |
504 | dnl argument 1 is name of function to check | |
505 | dnl | |
506 | dnl ASSUMES argument is a math function with ONE parameter | |
507 | dnl | |
508 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
509 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 510 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
511 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
512 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
513 | AC_LANG_SAVE | |
514 | AC_LANG_CPLUSPLUS | |
515 | AC_TRY_COMPILE([#include <math.h>], | |
516 | [ $1(0);], | |
517 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
518 | AC_LANG_RESTORE | |
519 | ]) | |
520 | fi | |
421173e6 PE |
521 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
522 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 523 | AC_MSG_CHECKING([for $1 linkage]) |
f84ef7fb PE |
524 | if test x${glibcpp_cv_func_$1_link+set} != xset; then |
525 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ | |
526 | AC_TRY_LINK([#include <math.h>], | |
527 | [ $1(0);], | |
528 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
529 | ]) | |
530 | fi | |
421173e6 PE |
531 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) |
532 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
533 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
534 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
535 | fi | |
536 | fi | |
537 | ]) | |
538 | ||
539 | ||
540 | dnl | |
541 | dnl Check to see what builtin math functions are supported | |
542 | dnl | |
543 | dnl check for __builtin_abs | |
544 | dnl check for __builtin_fabsf | |
545 | dnl check for __builtin_fabs | |
546 | dnl check for __builtin_fabl | |
547 | dnl check for __builtin_labs | |
548 | dnl check for __builtin_sqrtf | |
549 | dnl check for __builtin_sqrtl | |
550 | dnl check for __builtin_fsqrt | |
551 | dnl check for __builtin_sinf | |
552 | dnl check for __builtin_sin | |
553 | dnl check for __builtin_sinl | |
554 | dnl check for __builtin_cosf | |
555 | dnl check for __builtin_cos | |
556 | dnl check for __builtin_cosl | |
557 | dnl | |
558 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
559 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
560 | dnl Test for builtin math functions. | |
561 | dnl These are made in gcc/c-common.c | |
562 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
563 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
564 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
565 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
566 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
567 | ||
568 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
569 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
570 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
571 | ||
572 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
573 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
574 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
575 | ||
576 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
577 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
578 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
579 | ||
580 | dnl There is, without a doubt, a more elegant way to have these | |
581 | dnl names exported so that they won't be stripped out of acconfig.h by | |
582 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
583 | dnl than I.... please email the libstdc++ list if you can figure out a | |
584 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
585 | dnl AC_CHECK_FUNC for things to steal.) | |
586 | dummyvar=no | |
587 | if test x$dummyvar = x"yes"; then | |
588 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
589 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
590 | AC_DEFINE(HAVE___BUILTIN_COS) | |
591 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
592 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
593 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
594 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
595 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
596 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
597 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
598 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
599 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
600 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
601 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
602 | fi | |
603 | ]) | |
604 | ||
605 | ||
e7140677 BK |
606 | dnl |
607 | dnl Check to see what the underlying c library | |
608 | dnl These checks need to do two things: | |
609 | dnl 1) make sure the name is declared when using the c++ compiler | |
610 | dnl 2) make sure the name has "C" linkage | |
611 | dnl This might seem like overkill but experience has shown that it's not... | |
612 | dnl | |
7cda84dc BK |
613 | dnl Define HAVE_STRTOLD if "strtold" is declared and links |
614 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
615 | dnl Define HAVE_DRAND48 if "drand48" is declared and links | |
e7140677 BK |
616 | dnl |
617 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
618 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
619 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
620 | ac_save_CXXFLAGS="$CXXFLAGS" | |
621 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
622 | ||
e7140677 | 623 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) |
7cda84dc | 624 | AC_CHECK_FUNCS(drand48) |
e7140677 BK |
625 | |
626 | CXXFLAGS="$ac_save_CXXFLAGS" | |
627 | ]) | |
628 | ||
629 | ||
2f103494 BK |
630 | dnl |
631 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
632 | dnl These checks need to do two things: |
633 | dnl 1) make sure the name is declared when using the c++ compiler | |
634 | dnl 2) make sure the name has "C" linkage | |
635 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
636 | dnl |
637 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
638 | dnl | |
639 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
640 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
641 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
642 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 643 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
644 | |
645 | dnl Check libm | |
2f103494 | 646 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 647 | ac_save_LIBS="$LIBS" |
2f103494 BK |
648 | LIBS="$LIBS $libm" |
649 | ||
38bd7296 BK |
650 | dnl Check to see if certain C math functions exist. |
651 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
652 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
653 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
654 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
655 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
656 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
657 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
d38cd8ae | 658 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot) |
38bd7296 BK |
659 | |
660 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 661 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, |
9b8fd32c PE |
662 | float_trig, |
663 | acosf asinf atanf \ | |
20b11783 | 664 | cosf sinf tanf \ |
9b8fd32c | 665 | coshf sinhf tanhf) |
20b11783 | 666 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, |
9b8fd32c | 667 | float_round, |
20b11783 | 668 | ceilf floorf) |
38bd7296 BK |
669 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) |
670 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
d38cd8ae | 671 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f) |
38bd7296 | 672 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) |
38bd7296 BK |
673 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) |
674 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
d38cd8ae | 675 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf) |
38bd7296 BK |
676 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) |
677 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
678 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
679 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
680 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
38bd7296 | 681 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) |
38bd7296 BK |
682 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) |
683 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
684 | ||
685 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 686 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, |
9b8fd32c PE |
687 | long_double_trig, |
688 | acosl asinl atanl \ | |
20b11783 | 689 | cosl sinl tanl \ |
9b8fd32c | 690 | coshl sinhl tanhl) |
20b11783 | 691 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, |
9b8fd32c | 692 | long_double_round, |
20b11783 | 693 | ceill floorl) |
38bd7296 BK |
694 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) |
695 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 696 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 | 697 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) |
38bd7296 BK |
698 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) |
699 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
38bd7296 BK |
700 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) |
701 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
d38cd8ae | 702 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl) |
38bd7296 BK |
703 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) |
704 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
705 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
706 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
707 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
38bd7296 | 708 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) |
38bd7296 BK |
709 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) |
710 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
711 | ||
712 | dnl Some runtimes have these functions with a preceding underscore. Please | |
713 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
714 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
715 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
716 | |
717 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 718 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, |
9b8fd32c PE |
719 | _float_trig, |
720 | _acosf _asinf _atanf \ | |
20b11783 | 721 | _cosf _sinf _tanf \ |
9b8fd32c | 722 | _coshf _sinhf _tanhf) |
20b11783 | 723 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, |
9b8fd32c | 724 | _float_round, |
20b11783 | 725 | _ceilf _floorf) |
38bd7296 BK |
726 | |
727 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 728 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, |
9b8fd32c PE |
729 | _long_double_trig, |
730 | _acosl _asinl _atanl \ | |
20b11783 | 731 | _cosl _sinl _tanl \ |
9b8fd32c | 732 | _coshl _sinhl _tanhl) |
20b11783 | 733 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, |
9b8fd32c | 734 | _long_double_round, |
20b11783 | 735 | _ceill _floorl) |
38bd7296 BK |
736 | |
737 | LIBS="$ac_save_LIBS" | |
738 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
739 | ]) |
740 | ||
741 | ||
742 | dnl | |
743 | dnl Check to see if there is native support for complex | |
744 | dnl | |
745 | dnl Don't compile bits in math/* if native support exits. | |
746 | dnl | |
d38cd8ae | 747 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found. |
2f103494 BK |
748 | dnl |
749 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
750 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
751 | dnl Check for complex versions of math functions of platform. | |
b4b2a487 | 752 | AC_CHECK_LIB(m, main) |
d38cd8ae | 753 | AC_REPLACE_MATHFUNCS(nan copysignf) |
11fc1858 BK |
754 | |
755 | dnl Compile the long double complex functions only if the function | |
756 | dnl provides the non-complex long double functions that are needed. | |
d38cd8ae | 757 | dnl Currently this includes copysignl, which should be |
11fc1858 BK |
758 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. |
759 | USE_COMPLEX_LONG_DOUBLE=no | |
d38cd8ae | 760 | if test x$ac_cv_func_copysignl = x"yes"; then |
11fc1858 | 761 | USE_COMPLEX_LONG_DOUBLE=yes |
d38cd8ae | 762 | AC_REPLACE_MATHFUNCS(signbitl) |
11fc1858 BK |
763 | fi |
764 | ||
2f103494 BK |
765 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
766 | ]) | |
767 | ||
54fa7415 | 768 | |
d0941a31 PE |
769 | dnl Check to see what architecture and operating system we are compiling |
770 | dnl for. Also, if architecture- or OS-specific flags are required for | |
771 | dnl compilation, pick them up here. | |
e974e9cc | 772 | dnl |
d0941a31 PE |
773 | dnl GLIBCPP_CHECK_TARGET |
774 | AC_DEFUN(GLIBCPP_CHECK_TARGET, [ | |
775 | . [$]{glibcpp_basedir}/configure.target | |
776 | AC_MSG_RESULT(CPU config directory is $cpu_include_dir) | |
777 | AC_MSG_RESULT(OS config directory is $os_include_dir) | |
e974e9cc BK |
778 | ]) |
779 | ||
780 | ||
b2dad0e3 BK |
781 | dnl |
782 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
8b8ab21c BK |
783 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
784 | dnl must have been previously checked.) | |
b2dad0e3 BK |
785 | dnl |
786 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found | |
7b331228 | 787 | dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h |
b2dad0e3 BK |
788 | dnl |
789 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
790 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
7b331228 BK |
791 | |
792 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and | |
793 | dnl others even if wchar_t support is not on. | |
794 | AC_MSG_CHECKING([for mbstate_t]) | |
795 | AC_TRY_COMPILE([#include <wchar.h>], | |
796 | [mbstate_t teststate;], | |
797 | have_mbstate_t=yes, have_mbstate_t=no) | |
798 | AC_MSG_RESULT($have_mbstate_t) | |
799 | if test x"$have_mbstate_t" = xyes; then | |
800 | AC_DEFINE(HAVE_MBSTATE_T) | |
801 | fi | |
802 | ||
803 | dnl Sanity check for existence of ISO C99 headers for extended encoding. | |
804 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
805 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
b2dad0e3 | 806 | |
7b331228 | 807 | dnl Only continue checking if the ISO C99 headers exist and support is on. |
a0cb1aa7 PE |
808 | if test x"$ac_has_wchar_h" = xyes && |
809 | test x"$ac_has_wctype_h" = xyes && | |
810 | test x"$enable_c_mbchar" != xno; then | |
7b331228 BK |
811 | |
812 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
813 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
814 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
815 | AC_TRY_COMPILE([#include <wchar.h>], | |
816 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
817 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
818 | AC_MSG_RESULT($has_wchar_minmax) | |
8b8ab21c | 819 | |
7b331228 BK |
820 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
821 | dnl to specialize for char_traits<wchar_t> or not. | |
822 | AC_MSG_CHECKING([for WEOF]) | |
823 | AC_TRY_COMPILE([ | |
824 | #include <wchar.h> | |
825 | #include <stddef.h>], | |
826 | [wint_t i = WEOF;], | |
827 | has_weof=yes, has_weof=no) | |
828 | AC_MSG_RESULT($has_weof) | |
8b8ab21c | 829 | |
7b331228 | 830 | dnl Tests for wide character functions used in char_traits<wchar_t>. |
68fe6226 BK |
831 | ac_wfuncs=yes |
832 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \ | |
833 | ac_wfuncs=no) | |
8b8ab21c | 834 | |
68fe6226 BK |
835 | dnl Checks for names injected into std:: by the c_std headers. |
836 | AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \ | |
837 | fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \ | |
838 | vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \ | |
839 | mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \ | |
840 | wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \ | |
841 | wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \ | |
842 | ac_wfuncs=no) | |
df7b1359 | 843 | |
7b331228 | 844 | AC_MSG_CHECKING([for ISO C99 wchar_t support]) |
a0cb1aa7 PE |
845 | if test x"$has_weof" = xyes && |
846 | test x"$has_wchar_minmax" = xyes && | |
847 | test x"$ac_wfuncs" = xyes; then | |
7b331228 BK |
848 | ac_isoC99_wchar_t=yes |
849 | else | |
850 | ac_isoC99_wchar_t=no | |
851 | fi | |
852 | AC_MSG_RESULT($ac_isoC99_wchar_t) | |
8b8ab21c | 853 | |
7b331228 BK |
854 | dnl Use iconv for wchar_t to char conversions. As such, check for |
855 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
856 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
857 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
858 | ||
859 | dnl Check for existence of libiconv.a providing XPG2 wchar_t support. | |
860 | AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") | |
861 | ac_save_LIBS="$LIBS" | |
862 | LIBS="$LIBS $libiconv" | |
863 | ||
864 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
865 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
8b8ab21c | 866 | |
7b331228 | 867 | LIBS="$ac_save_LIBS" |
5b20f7a0 | 868 | |
7b331228 | 869 | AC_MSG_CHECKING([for XPG2 wchar_t support]) |
a0cb1aa7 PE |
870 | if test x"$ac_has_iconv_h" = xyes && |
871 | test x"$ac_has_langinfo_h" = xyes && | |
872 | test x"$ac_XPG2funcs" = xyes; then | |
7b331228 BK |
873 | ac_XPG2_wchar_t=yes |
874 | else | |
875 | ac_XPG2_wchar_t=no | |
876 | fi | |
877 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
b2dad0e3 | 878 | |
7b331228 BK |
879 | dnl At the moment, only enable wchar_t specializations if all the |
880 | dnl above support is present. | |
881 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
a0cb1aa7 PE |
882 | if test x"$ac_isoC99_wchar_t" = xyes && |
883 | test x"$ac_XPG2_wchar_t" = xyes; then | |
7b331228 BK |
884 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) |
885 | AC_MSG_RESULT("yes") | |
3840fa2a | 886 | else |
7b331228 | 887 | AC_MSG_RESULT("no") |
3840fa2a | 888 | fi |
b2dad0e3 | 889 | else |
7b331228 BK |
890 | dnl Wide characters disabled by the user. |
891 | AC_MSG_WARN([wchar_t support disabled.]) | |
b2dad0e3 | 892 | fi |
b2dad0e3 BK |
893 | ]) |
894 | ||
895 | ||
b2dad0e3 | 896 | dnl |
8bd636c5 | 897 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
898 | dnl |
899 | dnl GLIBCPP_ENABLE_DEBUG | |
34791641 | 900 | dnl --enable-debug sets '-ggdb3 -O0'. |
b2dad0e3 BK |
901 | dnl --disable-debug sets '-g' and whatever optimization options the |
902 | dnl compiler can handle. | |
7f586614 | 903 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
904 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
905 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
906 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
907 | dnl defaults to `no'. | |
908 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
909 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
910 | AC_ARG_ENABLE(debug, | |
911 | changequote(<<, >>)dnl | |
912 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
913 | changequote([, ])dnl | |
5780a46b | 914 | [case "${enableval}" in |
b2dad0e3 BK |
915 | yes) enable_debug=yes ;; |
916 | no) enable_debug=no ;; | |
917 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
918 | esac], | |
919 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 920 | |
b2dad0e3 | 921 | dnl Option parsed, now set things appropriately |
5780a46b | 922 | case "${enable_debug}" in |
cde28f0d | 923 | yes) |
34791641 | 924 | DEBUG_FLAGS='-O0 -ggdb3' |
6abd2230 | 925 | ;; |
f3b004d8 | 926 | no) |
8b8ab21c | 927 | DEBUG_FLAGS='-g' |
f3b004d8 | 928 | ;; |
b2dad0e3 | 929 | esac |
c470c17d | 930 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
931 | ]) |
932 | ||
933 | ||
dcfa0bc8 PE |
934 | dnl |
935 | dnl Check for "unusual" flags to pass to the compiler while building. | |
936 | dnl | |
937 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
938 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
939 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
940 | dnl Somehow this same set of flags must be passed when [re]building | |
941 | dnl libgcc. | |
942 | dnl --disable-cxx-flags passes nothing. | |
a9ab8db1 JM |
943 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html |
944 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
945 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 946 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
947 | dnl If "default flags" is an empty string (or "none"), the effect is |
948 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
949 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
950 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
951 | AC_ARG_ENABLE(cxx-flags, | |
952 | changequote(<<, >>)dnl | |
953 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
954 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
955 | changequote([, ])dnl | |
956 | [case "x$enableval" in | |
5780a46b | 957 | xyes) |
8b8ab21c | 958 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
5780a46b | 959 | xno|x) |
8b8ab21c | 960 | enable_cxx_flags='' ;; |
5780a46b | 961 | *) |
8b8ab21c | 962 | enable_cxx_flags="$enableval" ;; |
dcfa0bc8 | 963 | esac], |
5780a46b BK |
964 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
965 | ||
32a4595e | 966 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
967 | if test "$enable_cxx_flags" = "none"; then |
968 | enable_cxx_flags=''; | |
969 | fi | |
970 | ||
32a4595e PE |
971 | dnl Run through flags (either default or command-line) and set anything |
972 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
973 | if test -n "$enable_cxx_flags"; then |
974 | for f in $enable_cxx_flags; do | |
975 | case "$f" in | |
991a40fc | 976 | -fhonor-std) ;; |
dcfa0bc8 PE |
977 | -*) ;; |
978 | *) # and we're trying to pass /what/ exactly? | |
979 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
980 | esac | |
981 | done | |
982 | fi | |
983 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
984 | AC_SUBST(EXTRA_CXX_FLAGS) | |
985 | ]) | |
986 | ||
987 | ||
0214010c BK |
988 | dnl |
989 | dnl Check for which locale library to use: gnu or generic. | |
990 | dnl | |
991 | dnl GLIBCPP_ENABLE_CLOCALE | |
992 | dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends | |
993 | dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends | |
994 | dnl | |
995 | dnl default is generic | |
996 | dnl | |
997 | AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [ | |
998 | AC_MSG_CHECKING([for clocale to use]) | |
999 | AC_ARG_ENABLE(clocale, | |
572051a2 PE |
1000 | [ --enable-clocale enable model for target locale package. |
1001 | --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic] | |
0214010c BK |
1002 | ], |
1003 | if test x$enable_clocale = xno; then | |
1004 | enable_clocale=generic | |
1005 | fi, | |
1006 | enable_clocale=generic) | |
1007 | ||
1008 | enable_clocale_flag=$enable_clocale | |
1009 | ||
1010 | dnl Check if a valid locale package | |
1011 | case x${enable_clocale_flag} in | |
1012 | xgnu) | |
1013 | CLOCALE_H=config/c_locale_gnu.h | |
1014 | CLOCALE_CC=config/c_locale_gnu.cc | |
1015 | AC_MSG_RESULT(gnu) | |
1016 | ;; | |
1017 | xgeneric) | |
1018 | CLOCALE_H=config/c_locale_generic.h | |
1019 | CLOCALE_CC=config/c_locale_generic.cc | |
1020 | AC_MSG_RESULT(generic) | |
1021 | ;; | |
1022 | *) | |
1023 | echo "$enable_clocale is an unknown locale package" 1>&2 | |
1024 | exit 1 | |
1025 | ;; | |
1026 | esac | |
1027 | ||
4a9d5109 | 1028 | AC_SUBST(CLOCALE_H) |
0214010c BK |
1029 | AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc) |
1030 | ]) | |
1031 | ||
1032 | ||
b2dad0e3 | 1033 | dnl |
8bd636c5 | 1034 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1035 | dnl |
1036 | dnl GLIBCPP_ENABLE_CSTDIO | |
1037 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1038 | dnl | |
8e2d9424 | 1039 | dnl default is stdio |
b2dad0e3 BK |
1040 | dnl |
1041 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1042 | AC_MSG_CHECKING([for cstdio to use]) | |
1043 | AC_ARG_ENABLE(cstdio, | |
572051a2 PE |
1044 | [ --enable-cstdio enable stdio for target io package. |
1045 | --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] | |
36e40658 | 1046 | ], |
b2dad0e3 | 1047 | if test x$enable_cstdio = xno; then |
8e2d9424 | 1048 | enable_cstdio=stdio |
b2dad0e3 | 1049 | fi, |
8e2d9424 | 1050 | enable_cstdio=stdio) |
b2dad0e3 BK |
1051 | |
1052 | enable_cstdio_flag=$enable_cstdio | |
1053 | ||
8b8ab21c | 1054 | dnl Check if a valid I/O package |
b2dad0e3 | 1055 | case x${enable_cstdio_flag} in |
e26cb7ab | 1056 | xlibio) |
dd75251f | 1057 | CSTDIO_H=config/c_io_libio.h |
c0a26060 BK |
1058 | BASIC_FILE_H=config/basic_file_libio.h |
1059 | BASIC_FILE_CC=config/basic_file_libio.cc | |
dd75251f BK |
1060 | AC_MSG_RESULT(libio) |
1061 | ||
1062 | # see if we are on a system with libio native (ie, linux) | |
1063 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1064 | ||
1065 | # Need to check and see what version of glibc is being used. If | |
1066 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1067 | # compile most of libio for linux systems. | |
1068 | if test x$has_libio = x"yes"; then | |
1069 | case "$target" in | |
1070 | *-*-linux*) | |
8b8ab21c BK |
1071 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1072 | AC_EGREP_CPP([ok], [ | |
1073 | #include <features.h> | |
1074 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1075 | ok | |
1076 | #endif | |
1077 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1078 | AC_MSG_RESULT($glibc_satisfactory) | |
1079 | ;; | |
dd75251f BK |
1080 | esac |
1081 | ||
8b8ab21c | 1082 | # XXX at the moment, admit defeat and force the recompilation |
f133a43e | 1083 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
8b8ab21c BK |
1084 | glibc_satisfactory=no |
1085 | ||
1086 | if test x$glibc_satisfactory = x"yes"; then | |
1087 | need_libio=no | |
8b8ab21c BK |
1088 | need_wlibio=no |
1089 | else | |
1090 | need_libio=yes | |
8b8ab21c BK |
1091 | # bkoz XXX need to add checks to enable this |
1092 | # pme XXX here's a first pass at such a check | |
1093 | if test x$enable_c_mbchar != xno; then | |
1094 | need_wlibio=yes | |
1095 | else | |
1096 | need_wlibio=no | |
1097 | fi | |
1098 | fi | |
dd75251f | 1099 | |
dd75251f | 1100 | else |
e7140677 | 1101 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
8b8ab21c | 1102 | need_libio=yes |
8b8ab21c BK |
1103 | # bkoz XXX need to add checks to enable this |
1104 | # pme XXX here's a first pass at such a check | |
1105 | if test x$enable_c_mbchar != xno; then | |
1106 | need_wlibio=yes | |
1107 | else | |
1108 | need_wlibio=no | |
1109 | fi | |
dd75251f BK |
1110 | fi |
1111 | ;; | |
e26cb7ab MM |
1112 | xstdio | x | xno | xnone | xyes) |
1113 | # default | |
9717c75c | 1114 | CSTDIO_H=config/c_io_stdio.h |
c0a26060 BK |
1115 | BASIC_FILE_H=config/basic_file_stdio.h |
1116 | BASIC_FILE_CC=config/basic_file_stdio.cc | |
9717c75c BK |
1117 | AC_MSG_RESULT(stdio) |
1118 | ||
e26cb7ab | 1119 | # We're not using stdio. |
dd75251f | 1120 | need_libio=no |
e26cb7ab | 1121 | need_wlibio=no |
dd75251f BK |
1122 | ;; |
1123 | *) | |
1124 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1125 | exit 1 | |
1126 | ;; | |
b2dad0e3 | 1127 | esac |
4a9d5109 SW |
1128 | AC_SUBST(CSTDIO_H) |
1129 | AC_SUBST(BASIC_FILE_H) | |
c0a26060 | 1130 | AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc) |
8901ac21 BK |
1131 | |
1132 | # 2000-08-04 bkoz hack | |
1133 | CCODECVT_C=config/c_io_libio_codecvt.c | |
4a9d5109 | 1134 | AC_SUBST(CCODECVT_C) |
8901ac21 | 1135 | # 2000-08-04 bkoz hack |
8b8ab21c | 1136 | |
85a011b0 PE |
1137 | AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, |
1138 | test "$need_libio" = yes || test "$need_wlibio" = yes) | |
b2dad0e3 | 1139 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
20427c6b | 1140 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
c4d3f801 | 1141 | if test "$need_libio" = yes || test "$need_wlibio" = yes; then |
4c07386b | 1142 | libio_la=../libio/libio.la |
c4d3f801 | 1143 | else |
4c07386b | 1144 | libio_la= |
c4d3f801 MM |
1145 | fi |
1146 | AC_SUBST(libio_la) | |
b2dad0e3 BK |
1147 | ]) |
1148 | ||
1149 | ||
1150 | dnl | |
5e218033 LR |
1151 | dnl Setup to use the gcc gthr.h thread-specific memory and mutex model. |
1152 | dnl We must stage the required headers so that they will be installed | |
1153 | dnl with the library (unlike libgcc, the STL implementation is provided | |
1154 | dnl solely within headers). Since we must not inject random user-space | |
1155 | dnl macro names into user-provided C++ code, we first stage into <file>-in | |
1156 | dnl and process to <file> with an output command. The reason for a two- | |
1157 | dnl stage process here is to correctly handle $srcdir!=$objdir without | |
1158 | dnl having to write complex code (the sed commands to clean the macro | |
3a5e0e62 LR |
1159 | dnl namespace are complex and fragile enough as it is). We must also |
1160 | dnl add a relative path so that -I- is supported properly. | |
b2dad0e3 BK |
1161 | dnl |
1162 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
ede74510 AO |
1163 | AC_MSG_CHECKING([for thread model used by GCC]) |
1164 | target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` | |
1165 | AC_MSG_RESULT([$target_thread_file]) | |
b2dad0e3 | 1166 | |
5e218033 LR |
1167 | if test $target_thread_file != single; then |
1168 | AC_DEFINE(HAVE_GTHR_DEFAULT) | |
1169 | AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__) | |
8b8ab21c | 1170 | fi |
4a9d5109 SW |
1171 | |
1172 | glibcpp_thread_h=gthr-$target_thread_file.h | |
1173 | AC_SUBST(glibcpp_thread_h) | |
b2dad0e3 BK |
1174 | ]) |
1175 | ||
1176 | ||
52a11cbf RH |
1177 | dnl |
1178 | dnl Check for exception handling support. If an explicit enable/disable | |
1179 | dnl sjlj exceptions is given, we don't have to detect. Otherwise the | |
1180 | dnl target may or may not support call frame exceptions. | |
1181 | dnl | |
1182 | dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS | |
1183 | dnl --enable-sjlj-exceptions forces the use of builtin setjmp. | |
1184 | dnl --disable-sjlj-exceptions forces the use of call frame unwinding. | |
1185 | dnl | |
1186 | dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it. | |
1187 | dnl | |
1188 | AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [ | |
1189 | AC_MSG_CHECKING([for exception model to use]) | |
1190 | AC_LANG_SAVE | |
1191 | AC_LANG_CPLUSPLUS | |
1192 | AC_ARG_ENABLE(sjlj-exceptions, | |
1193 | [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions], | |
1194 | [:], | |
1195 | [dnl Botheration. Now we've got to detect the exception model. | |
1196 | dnl Link tests against libgcc.a are problematic since -- at least | |
1197 | dnl as of this writing -- we've not been given proper -L bits for | |
1198 | dnl single-tree newlib and libgloss. | |
1199 | dnl | |
1200 | dnl This is what AC_TRY_COMPILE would do if it didn't delete the | |
1201 | dnl conftest files before we got a change to grep them first. | |
1202 | cat > conftest.$ac_ext << EOF | |
1203 | [#]line __oline__ "configure" | |
1204 | struct S { ~S(); }; | |
1205 | void bar(); | |
1206 | void foo() | |
1207 | { | |
1208 | S s; | |
1209 | bar(); | |
1210 | } | |
1211 | EOF | |
1212 | old_CXXFLAGS="$CXXFLAGS" | |
1213 | CXXFLAGS=-S | |
1214 | if AC_TRY_EVAL(ac_compile); then | |
1215 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then | |
1216 | enable_sjlj_exceptions=yes | |
1217 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then | |
1218 | enable_sjlj_exceptions=no | |
1219 | fi | |
1220 | fi | |
1221 | CXXFLAGS="$old_CXXFLAGS" | |
1222 | rm -f conftest*]) | |
1223 | if test x$enable_sjlj_exceptions = xyes; then | |
1224 | AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1, | |
a0cb1aa7 | 1225 | [Define if the compiler is configured for setjmp/longjmp exceptions.]) |
52a11cbf RH |
1226 | ac_exception_model_name=sjlj |
1227 | elif test x$enable_sjlj_exceptions = xno; then | |
1228 | ac_exception_model_name="call frame" | |
1229 | else | |
1230 | AC_MSG_ERROR([unable to detect exception model]) | |
1231 | fi | |
1232 | AC_LANG_RESTORE | |
1233 | AC_MSG_RESULT($ac_exception_model_name) | |
1234 | ]) | |
1235 | ||
1236 | ||
7cda84dc BK |
1237 | dnl |
1238 | dnl Check for ISO/IEC 9899:1999 "C99" support. | |
1239 | dnl | |
1240 | dnl GLIBCPP_ENABLE_C99 | |
1241 | dnl --enable-c99 defines _GLIBCPP_USE_C99 | |
1242 | dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined | |
1243 | dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)] | |
1244 | dnl Where DEFAULT is either `yes' or `no'. If omitted, it | |
1245 | dnl defaults to `no'. | |
1246 | dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'. | |
1247 | dnl | |
1248 | dnl GLIBCPP_ENABLE_C99 | |
1249 | AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl | |
1250 | define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl | |
209fe19b | 1251 | |
7cda84dc BK |
1252 | AC_ARG_ENABLE(c99, |
1253 | changequote(<<, >>)dnl | |
1254 | <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT], | |
1255 | changequote([, ])dnl | |
1256 | [case "$enableval" in | |
1257 | yes) enable_c99=yes ;; | |
1258 | no) enable_c99=no ;; | |
1259 | *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;; | |
1260 | esac], | |
1261 | enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl | |
1262 | ||
1263 | AC_LANG_SAVE | |
1264 | AC_LANG_CPLUSPLUS | |
209fe19b | 1265 | |
7cda84dc | 1266 | # Check for the existence of <math.h> functions used if C99 is enabled. |
bd937d50 | 1267 | ac_c99_math=yes; |
54eb01be | 1268 | AC_MSG_CHECKING([for ISO C99 support in <math.h>]) |
7cda84dc BK |
1269 | AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no]) |
1270 | AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no]) | |
1271 | AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no]) | |
1272 | AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no]) | |
1273 | AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no]) | |
1274 | AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no]) | |
337187ff BK |
1275 | AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no]) |
1276 | AC_TRY_COMPILE([#include <math.h>], | |
bd937d50 | 1277 | [isgreaterequal(0.0,0.0);],, [ac_c99_math=no]) |
337187ff BK |
1278 | AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no]) |
1279 | AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no]) | |
1280 | AC_TRY_COMPILE([#include <math.h>], | |
bd937d50 | 1281 | [islessgreater(0.0,0.0);],, [ac_c99_math=no]) |
337187ff | 1282 | AC_TRY_COMPILE([#include <math.h>], |
bd937d50 | 1283 | [isunordered(0.0,0.0);],, [ac_c99_math=no]) |
bd937d50 | 1284 | AC_MSG_RESULT($ac_c99_math) |
7cda84dc | 1285 | |
61c71946 BK |
1286 | # Check for the existence in <stdio.h> of vscanf, et. al. |
1287 | ac_c99_stdio=yes; | |
1288 | AC_MSG_CHECKING([for ISO C99 support in <stdio.h>]) | |
1289 | AC_TRY_COMPILE([#include <stdio.h>], | |
1290 | [snprintf("12", 0, "%i");],, [ac_c99_stdio=no]) | |
1291 | AC_TRY_COMPILE([#include <stdio.h> | |
1292 | #include <stdarg.h> | |
1293 | void foo(char* fmt, ...) | |
1294 | {va_list args; va_start(args, fmt); | |
1295 | vfscanf(stderr, "%i", args);}], | |
a0cb1aa7 | 1296 | [],, [ac_c99_stdio=no]) |
61c71946 BK |
1297 | AC_TRY_COMPILE([#include <stdio.h> |
1298 | #include <stdarg.h> | |
1299 | void foo(char* fmt, ...) | |
1300 | {va_list args; va_start(args, fmt); | |
1301 | vscanf("%i", args);}], | |
1302 | [],, [ac_c99_stdio=no]) | |
1303 | AC_TRY_COMPILE([#include <stdio.h> | |
1304 | #include <stdarg.h> | |
1305 | void foo(char* fmt, ...) | |
1306 | {va_list args; va_start(args, fmt); | |
1307 | vsnprintf(fmt, 0, "%i", args);}], | |
1308 | [],, [ac_c99_stdio=no]) | |
1309 | AC_TRY_COMPILE([#include <stdio.h> | |
1310 | #include <stdarg.h> | |
1311 | void foo(char* fmt, ...) | |
1312 | {va_list args; va_start(args, fmt); | |
1313 | vsscanf(fmt, "%i", args);}], | |
1314 | [],, [ac_c99_stdio=no]) | |
1315 | AC_MSG_RESULT($ac_c99_stdio) | |
1316 | ||
7cda84dc | 1317 | # Check for the existence in <stdlib.h> of lldiv_t, et. al. |
bd937d50 | 1318 | ac_c99_stdlib=yes; |
f4c79fef | 1319 | AC_MSG_CHECKING([for lldiv_t declaration]) |
7cda84dc BK |
1320 | AC_CACHE_VAL(ac_c99_lldiv_t, [ |
1321 | AC_TRY_COMPILE([#include <stdlib.h>], | |
f4c79fef | 1322 | [ lldiv_t mydivt;], |
7cda84dc | 1323 | [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no]) |
f4c79fef | 1324 | ]) |
7cda84dc | 1325 | AC_MSG_RESULT($ac_c99_lldiv_t) |
54eb01be PE |
1326 | |
1327 | AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>]) | |
61c71946 BK |
1328 | AC_TRY_COMPILE([#include <stdlib.h>], |
1329 | [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no]) | |
1330 | AC_TRY_COMPILE([#include <stdlib.h>], | |
1331 | [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no]) | |
54eb01be PE |
1332 | AC_TRY_COMPILE([#include <stdlib.h>], |
1333 | [char* tmp; strtoll("gnu", &tmp, 10);],, [ac_c99_stdlib=no]) | |
1334 | AC_TRY_COMPILE([#include <stdlib.h>], | |
1335 | [char* tmp; strtoull("gnu", &tmp, 10);],, [ac_c99_stdlib=no]) | |
1336 | AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no]) | |
1337 | AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no]) | |
1338 | AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no]) | |
61c71946 | 1339 | AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no]) |
7cda84dc BK |
1340 | if test x"$ac_c99_lldiv_t" = x"no"; then |
1341 | ac_c99_stdlib=no; | |
1342 | fi; | |
bd937d50 | 1343 | AC_MSG_RESULT($ac_c99_stdlib) |
7cda84dc BK |
1344 | |
1345 | # Check for the existence of <wchar.h> functions used if C99 is enabled. | |
68fe6226 | 1346 | # XXX the wchar.h checks should be rolled into the general C99 bits. |
bd937d50 | 1347 | ac_c99_wchar=yes; |
68fe6226 | 1348 | AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>]) |
bd937d50 BK |
1349 | AC_TRY_COMPILE([#include <wchar.h>], |
1350 | [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no]) | |
1351 | AC_TRY_COMPILE([#include <wchar.h>], | |
1352 | [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no]) | |
1353 | AC_TRY_COMPILE([#include <wchar.h>], | |
1354 | [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no]) | |
bd937d50 | 1355 | AC_MSG_RESULT($ac_c99_wchar) |
f4c79fef | 1356 | |
7cda84dc | 1357 | AC_MSG_CHECKING([for enabled ISO C99 support]) |
a0cb1aa7 PE |
1358 | if test x"$ac_c99_math" = x"no" || |
1359 | test x"$ac_c99_stdio" = x"no" || | |
1360 | test x"$ac_c99_stdlib" = x"no" || | |
1361 | test x"$ac_c99_wchar" = x"no"; then | |
7cda84dc | 1362 | enable_c99=no; |
3840fa2a | 1363 | fi; |
7cda84dc | 1364 | AC_MSG_RESULT($enable_c99) |
3840fa2a | 1365 | |
f4c79fef | 1366 | # Option parsed, now set things appropriately |
7cda84dc BK |
1367 | if test x"$enable_c99" = x"yes"; then |
1368 | AC_DEFINE(_GLIBCPP_USE_C99) | |
dcc41852 | 1369 | fi |
4c07386b | 1370 | |
7cda84dc | 1371 | AC_LANG_RESTORE |
b2dad0e3 BK |
1372 | ]) |
1373 | ||
1374 | ||
6c3a9f72 BK |
1375 | dnl |
1376 | dnl Check for template specializations for the 'long long' type extension. | |
1377 | dnl NB: Must check for C99 support before calling _GLIBCPP_ENABLE_LONG_LONG | |
1378 | dnl | |
1379 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1380 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1381 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1382 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1383 | dnl Where DEFAULT is either `yes' or `no'. If omitted, it | |
1384 | dnl defaults to `no'. | |
1385 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. | |
1386 | dnl | |
1387 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1388 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1389 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1390 | ||
1391 | AC_ARG_ENABLE(long-long, | |
1392 | changequote(<<, >>)dnl | |
1393 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], | |
1394 | changequote([, ])dnl | |
1395 | [case "$enableval" in | |
1396 | yes) enable_long_long=yes ;; | |
1397 | no) enable_long_long=no ;; | |
1398 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1399 | esac], | |
1400 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
1401 | ||
1402 | # iostreams require strtoll, strtoull to compile. If the | |
1403 | # GLIBCPP_ENABLE_C99 tests found these, and if C99 support is enabled, | |
1404 | # go ahead and allow long long to be used. | |
1405 | if test x"$enable_c99" = x"no"; then | |
1406 | enable_long_long=no; | |
1407 | fi | |
1408 | ||
1409 | # Option parsed, now set things appropriately | |
1410 | AC_MSG_CHECKING([for enabled long long support]) | |
1411 | if test x"$enable_long_long" = xyes; then | |
1412 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1413 | fi | |
1414 | AC_MSG_RESULT($enable_long_long) | |
1415 | ]) | |
1416 | ||
1417 | ||
99246c90 | 1418 | dnl |
e3123ab3 BK |
1419 | dnl Check for what kind of C headers to use. |
1420 | dnl | |
1421 | dnl GLIBCPP_ENABLE_CHEADERS | |
1422 | dnl --enable-cheaders= [does stuff]. | |
1423 | dnl --disable-cheaders [does not do anything, really]. | |
1424 | dnl + This will eventually need to be 'c_shadow' by default. | |
1425 | dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] | |
1426 | dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. | |
1427 | dnl If ommitted, it defaults to `c_std'. | |
1428 | AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl | |
1429 | define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl | |
1430 | AC_MSG_CHECKING([for c header strategy to use]) | |
1431 | AC_ARG_ENABLE(cheaders, | |
99246c90 | 1432 | changequote(<<, >>)dnl |
572051a2 | 1433 | << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], |
5780a46b BK |
1434 | changequote([, ]) |
1435 | [case "$enableval" in | |
e3123ab3 | 1436 | c) |
9b8fd32c | 1437 | enable_cheaders=c |
8b8ab21c | 1438 | ;; |
e3123ab3 | 1439 | c_std) |
9b8fd32c | 1440 | enable_cheaders=c_std |
8b8ab21c | 1441 | ;; |
e3123ab3 | 1442 | c_shadow) |
9b8fd32c | 1443 | enable_cheaders=c_shadow |
e3123ab3 BK |
1444 | ;; |
1445 | *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) | |
8b8ab21c | 1446 | ;; |
5780a46b | 1447 | esac], |
e3123ab3 BK |
1448 | enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) |
1449 | AC_MSG_RESULT($enable_cheaders) | |
5780a46b BK |
1450 | |
1451 | dnl Option parsed, now set things appropriately | |
e3123ab3 BK |
1452 | case "$enable_cheaders" in |
1453 | c_shadow) | |
8b8ab21c | 1454 | CSHADOW_FLAGS="-fno-builtin" |
fb124b99 | 1455 | C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow' |
0517cb99 | 1456 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
8b8ab21c | 1457 | ;; |
e3123ab3 BK |
1458 | c_std) |
1459 | CSHADOW_FLAGS="" | |
fb124b99 | 1460 | C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std' |
e3123ab3 BK |
1461 | ;; |
1462 | c) | |
8b8ab21c | 1463 | CSHADOW_FLAGS="" |
fb124b99 | 1464 | C_INCLUDE_DIR='${glibcpp_srcdir}/include/c' |
99246c90 | 1465 | ;; |
5780a46b | 1466 | esac |
5b80666b | 1467 | |
e466dc8a BK |
1468 | AC_SUBST(CSHADOW_FLAGS) |
1469 | AC_SUBST(C_INCLUDE_DIR) | |
e3123ab3 | 1470 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) |
99246c90 | 1471 | ]) |
b2dad0e3 | 1472 | |
8b8ab21c BK |
1473 | |
1474 | dnl | |
1475 | dnl Check for wide character support. Has the same effect as the option | |
1476 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1477 | dnl | |
1478 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1479 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1480 | dnl --disable-c-mbchar doesn't. | |
1481 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1482 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1483 | dnl defaults to `no'. | |
1484 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1485 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1486 | AC_ARG_ENABLE(c-mbchar, | |
1487 | changequote(<<, >>)dnl | |
1488 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1489 | changequote([, ])dnl | |
1490 | [case "$enableval" in | |
1491 | yes) enable_c_mbchar=yes ;; | |
1492 | no) enable_c_mbchar=no ;; | |
1493 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1494 | esac], | |
1495 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1496 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1497 | ]) | |
1498 | ||
1499 | ||
e466dc8a BK |
1500 | dnl |
1501 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1502 | dnl | |
e466dc8a BK |
1503 | dnl TOPLEVEL_INCLUDES |
1504 | dnl LIBMATH_INCLUDES | |
1505 | dnl LIBSUPCXX_INCLUDES | |
1506 | dnl LIBIO_INCLUDES | |
1507 | dnl CSHADOW_INCLUDES | |
1508 | dnl | |
4a9d5109 | 1509 | dnl GLIBCPP_EXPORT_INCLUDES |
e466dc8a | 1510 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ |
4a9d5109 SW |
1511 | # Root level of the build directory include sources. |
1512 | GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include" | |
e466dc8a | 1513 | |
9f935979 | 1514 | # Passed down for canadian crosses. |
4a9d5109 | 1515 | if test x"$CANADIAN" = xyes; then |
9f935979 BK |
1516 | TOPLEVEL_INCLUDES='-I$(includedir)' |
1517 | fi | |
e466dc8a BK |
1518 | |
1519 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1520 | ||
1521 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1522 | ||
4a9d5109 SW |
1523 | if test x"$need_libio" = xyes; then |
1524 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1525 | AC_SUBST(LIBIO_INCLUDES) | |
1526 | fi | |
e466dc8a BK |
1527 | |
1528 | # Now, export this to all the little Makefiles.... | |
4a9d5109 | 1529 | AC_SUBST(GLIBCPP_INCLUDES) |
e466dc8a BK |
1530 | AC_SUBST(TOPLEVEL_INCLUDES) |
1531 | AC_SUBST(LIBMATH_INCLUDES) | |
1532 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
e466dc8a BK |
1533 | ]) |
1534 | ||
1535 | ||
1536 | dnl | |
1537 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1538 | dnl | |
1539 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1540 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1541 | # uncomment the lines below and make, everything else is ready to go... | |
1542 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1543 | OPTIMIZE_CXXFLAGS= | |
1544 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1545 | ||
1546 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1547 | AC_SUBST(WARN_FLAGS) | |
1548 | ]) | |
1549 | ||
72ed2836 | 1550 | dnl |
43ba4a58 BK |
1551 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
1552 | dnl calculates gxx_install_dir | |
72ed2836 BK |
1553 | dnl exports glibcpp_toolexecdir |
1554 | dnl exports glibcpp_toolexeclibdir | |
572051a2 PE |
1555 | dnl exports glibcpp_builddir |
1556 | dnl exports glibcpp_srcdir | |
1557 | dnl exports glibcpp_prefixdir | |
72ed2836 BK |
1558 | dnl |
1559 | dnl Assumes cross_compiling bits already done, and with_cross_host in | |
1560 | dnl particular | |
43ba4a58 | 1561 | dnl |
72ed2836 | 1562 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
43ba4a58 BK |
1563 | AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [ |
1564 | ||
72ed2836 BK |
1565 | glibcpp_toolexecdir=no |
1566 | glibcpp_toolexeclibdir=no | |
1567 | ||
c6192d88 | 1568 | # Export build and source directories. |
bd937d50 BK |
1569 | # These need to be absolute paths, yet at the same time need to |
1570 | # canonicalize only relative paths, because then amd will not unmount | |
1571 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
52a57250 | 1572 | glibcpp_builddir=`pwd` |
bd937d50 BK |
1573 | case $srcdir in |
1574 | [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; | |
1575 | *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
1576 | esac | |
1577 | glibcpp_prefixdir=${prefix} | |
c6192d88 | 1578 | |
43ba4a58 BK |
1579 | AC_MSG_CHECKING([for interface version number]) |
1580 | libstdcxx_interface=$INTERFACE | |
1581 | AC_MSG_RESULT($libstdcxx_interface) | |
1582 | ||
1583 | # Process the option --with-gxx-include-dir=<path to include-files directory> | |
1584 | AC_MSG_CHECKING([for --with-gxx-include-dir]) | |
1585 | AC_ARG_WITH(gxx-include-dir, | |
572051a2 | 1586 | [ --with-gxx-include-dir the installation directory for include files], |
43ba4a58 BK |
1587 | [case "${withval}" in |
1588 | yes) | |
1589 | AC_MSG_ERROR(Missing directory for --with-gxx-include-dir) | |
1590 | gxx_include_dir=no | |
1591 | ;; | |
1592 | no) | |
1593 | gxx_include_dir=no | |
1594 | ;; | |
1595 | *) | |
1596 | gxx_include_dir=${withval} | |
1597 | ;; | |
1598 | esac], [gxx_include_dir=no]) | |
1599 | AC_MSG_RESULT($gxx_include_dir) | |
1600 | ||
1601 | # Process the option "--enable-version-specific-runtime-libs" | |
1602 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
1603 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
1604 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
1605 | [ version_specific_libs=yes | |
1606 | # Need the gcc compiler version to know where to install libraries | |
1607 | # and header files if --enable-version-specific-runtime-libs option | |
1608 | # is selected. | |
1609 | changequote(,)dnl | |
72ed2836 BK |
1610 | gcc_version_trigger=${srcdir}/../gcc/version.c |
1611 | gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` | |
1612 | gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` | |
1613 | gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++ | |
1614 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
f34f2346 | 1615 | glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)' |
43ba4a58 | 1616 | changequote([,])dnl |
43ba4a58 BK |
1617 | ],version_specific_libs=no) |
1618 | AC_MSG_RESULT($version_specific_libs) | |
1619 | ||
72ed2836 | 1620 | # Default case for install directory for include files. |
43ba4a58 | 1621 | if test x"$version_specific_libs" = x"no" \ |
c53cf0fe | 1622 | && test x"$gxx_include_dir" = x"no"; then |
72ed2836 BK |
1623 | gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface} |
1624 | fi | |
1625 | ||
1626 | # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir | |
1627 | # Install a library built with a cross compiler in tooldir, not libdir. | |
1628 | if test x"$glibcpp_toolexecdir" = x"no"; then | |
a0cb1aa7 PE |
1629 | if test -n "$with_cross_host" && |
1630 | test x"$with_cross_host" != x"no"; then | |
72ed2836 BK |
1631 | glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)' |
1632 | glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)' | |
1633 | else | |
1634 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1635 | glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)' | |
1636 | fi | |
43ba4a58 | 1637 | fi |
72ed2836 BK |
1638 | |
1639 | AC_MSG_CHECKING([for install location]) | |
43ba4a58 | 1640 | AC_MSG_RESULT($gxx_include_dir) |
72ed2836 | 1641 | |
c6192d88 BK |
1642 | AC_SUBST(glibcpp_builddir) |
1643 | AC_SUBST(glibcpp_srcdir) | |
1644 | AC_SUBST(glibcpp_prefixdir) | |
43ba4a58 | 1645 | AC_SUBST(gxx_include_dir) |
72ed2836 BK |
1646 | AC_SUBST(glibcpp_toolexecdir) |
1647 | AC_SUBST(glibcpp_toolexeclibdir) | |
43ba4a58 BK |
1648 | ]) |
1649 | ||
1650 | ||
af9fe0d1 BK |
1651 | # Check whether LC_MESSAGES is available in <locale.h>. |
1652 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1653 | # | |
1654 | # This file file be copied and used freely without restrictions. It can | |
1655 | # be used in projects which are not available under the GNU Public License | |
1656 | # but which still want to provide support for the GNU gettext functionality. | |
1657 | # Please note that the actual code is *not* freely available. | |
1658 | ||
1659 | # serial 1 | |
1660 | ||
819004bb BK |
1661 | AC_DEFUN(AC_LC_MESSAGES, [ |
1662 | AC_CHECK_HEADER(locale.h, [ | |
af9fe0d1 BK |
1663 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, |
1664 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1665 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1666 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1667 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1668 | fi | |
819004bb BK |
1669 | ]) |
1670 | ]) | |
af9fe0d1 BK |
1671 | |
1672 | ||
1673 | # Check for functions in math library. | |
1674 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1675 | # | |
1676 | # This file can be copied and used freely without restrictions. It can | |
1677 | # be used in projects which are not available under the GNU Public License | |
1678 | # but which still want to provide support for the GNU gettext functionality. | |
1679 | # Please note that the actual code is *not* freely available. | |
1680 | ||
1681 | # serial 1 | |
1682 | ||
1683 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1684 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1685 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1686 | AC_SUBST(LIBMATHOBJS)dnl | |
1687 | ]) | |
1688 | ||
1689 | ||
1690 | # Check for string functions. | |
1691 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1692 | # | |
1693 | # This file can be copied and used freely without restrictions. It can | |
1694 | # be used in projects which are not available under the GNU Public License | |
1695 | # but which still want to provide support for the GNU gettext functionality. | |
1696 | # Please note that the actual code is *not* freely available. | |
1697 | ||
1698 | # serial 1 | |
1699 | ||
1700 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1701 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1702 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1703 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1704 | ]) | |
b2dad0e3 | 1705 | |
29bd52c8 PE |
1706 | |
1707 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1708 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1709 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1710 | dnl which cannot be handled by other versions of make. The variable |
1711 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1712 | dnl the empty string otherwise. | |
1713 | dnl | |
1714 | dnl Here is an example of its use: | |
1715 | dnl | |
1716 | dnl Makefile.in might contain: | |
1717 | dnl | |
1718 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1719 | dnl $(DEPEND): | |
1720 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1721 | dnl | |
1722 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1723 | dnl @ifGNUmake@ include $(DEPEND) | |
1724 | dnl @ifGNUmake@ endif | |
1725 | dnl | |
1726 | dnl Then configure.in would normally contain: | |
1727 | dnl | |
1728 | dnl CHECK_GNU_MAKE() | |
1729 | dnl AC_OUTPUT(Makefile) | |
1730 | dnl | |
1731 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1732 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1733 | dnl | |
1734 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1735 | dnl mv Makefile GNUmakefile | |
1736 | dnl echo .DEFAULT: > Makefile ; | |
1737 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1738 | dnl fi | |
1739 | dnl | |
1740 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1741 | dnl exists, then the other make wraps the GNU make. | |
1742 | dnl | |
1743 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1744 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1745 | dnl |
1746 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1747 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1748 | dnl #### conditional's subshell (" --version" is not a command), using a |
1749 | dnl #### different option to grep(1). | |
29bd52c8 | 1750 | dnl #### -pme |
57d278be MS |
1751 | dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not |
1752 | dnl #### ${MAKE:-make}). | |
1753 | dnl #### -msokolov | |
29bd52c8 PE |
1754 | AC_DEFUN( |
1755 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1756 | _cv_gnu_make_command='' ; | |
1757 | dnl Search all the common names for GNU make | |
57d278be | 1758 | for a in "${MAKE-make}" make gmake gnumake ; do |
626d8f0a | 1759 | if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) |
79f5e38e | 1760 | then |
29bd52c8 PE |
1761 | _cv_gnu_make_command=$a ; |
1762 | break; | |
1763 | fi | |
1764 | done ; | |
1765 | ) ; | |
1766 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1767 | dnl string, '#' otherwise | |
1768 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1769 | ifGNUmake='' ; | |
1770 | else | |
1771 | ifGNUmake='#' ; | |
1772 | fi | |
1773 | AC_SUBST(ifGNUmake) | |
1774 | ]) | |
1775 | ||
fe413112 PE |
1776 | |
1777 | dnl Check for headers for, and arguments to, the setrlimit() function. | |
1778 | dnl Used only in testsuite_hooks.h. | |
1779 | AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [ | |
1780 | AC_TRY_COMPILE([#include <sys/resource.h> | |
1781 | #include <unistd.h> | |
1782 | ], [ int f = RLIMIT_$1 ; ], | |
1783 | [glibcpp_mresult=1], [glibcpp_mresult=0]) | |
1784 | AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult, | |
1785 | [Only used in build directory testsuite_hooks.h.]) | |
1786 | ]) | |
1787 | AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [ | |
1788 | setrlimit_have_needed_headers=yes | |
1789 | AC_CHECK_HEADERS(sys/resource.h unistd.h, | |
1790 | [], | |
1791 | setrlimit_have_needed_headers=no) | |
1792 | # If don't have the headers, then we can't run the tests now, and we | |
1793 | # won't be seeing any of these during testsuite compilation. | |
1794 | if test $setrlimit_have_needed_headers = yes; then | |
1795 | # Can't do these in a loop, else the resulting syntax is wrong. | |
1796 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA) | |
1797 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS) | |
1798 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM) | |
1799 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS) | |
1800 | fi | |
1801 | ]) | |
1802 | ||
1803 | ||
1804 | dnl | |
1805 | dnl Does any necessary configuration of the testsuite directory. Generates | |
1806 | dnl the testsuite_hooks.h header. | |
1807 | dnl | |
1808 | dnl GLIBCPP_CONFIGURE_TESTSUITE [no args] | |
1809 | AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [ | |
1810 | GLIBCPP_CHECK_SETRLIMIT | |
1811 | ]) | |
1812 | ||
1813 | ||
3df64633 AO |
1814 | sinclude(../libtool.m4) |
1815 | dnl The lines below arrange for aclocal not to bring an installed | |
1816 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1817 | dnl add a definition of LIBTOOL to Makefile.in. | |
1818 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1819 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1820 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1821 | AC_DEFUN([AC_PROG_LD]) | |
1822 | ]) | |
7f586614 | 1823 | |
9a200b0a | 1824 | |
7cda84dc | 1825 | |
b2dad0e3 BK |
1826 | # Do all the work for Automake. This macro actually does too much -- |
1827 | # some checks are only needed if your package does certain things. | |
1828 | # But this isn't really a big deal. | |
1829 | ||
1830 | # serial 1 | |
1831 | ||
1832 | dnl Usage: | |
1833 | dnl AM_INIT_AUTOMAKE(package,version, [no-define]) | |
1834 | ||
1835 | AC_DEFUN(AM_INIT_AUTOMAKE, | |
1836 | [AC_REQUIRE([AC_PROG_INSTALL]) | |
1837 | PACKAGE=[$1] | |
1838 | AC_SUBST(PACKAGE) | |
1839 | VERSION=[$2] | |
1840 | AC_SUBST(VERSION) | |
1841 | dnl test to see if srcdir already configured | |
1842 | if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then | |
1843 | AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) | |
1844 | fi | |
1845 | ifelse([$3],, | |
1846 | AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) | |
1847 | AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])) | |
1848 | AC_REQUIRE([AM_SANITY_CHECK]) | |
1849 | AC_REQUIRE([AC_ARG_PROGRAM]) | |
1850 | dnl FIXME This is truly gross. | |
1851 | missing_dir=`cd $ac_aux_dir && pwd` | |
1852 | AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) | |
1853 | AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) | |
1854 | AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) | |
1855 | AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) | |
1856 | AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) | |
1857 | AC_REQUIRE([AC_PROG_MAKE_SET])]) | |
1858 | ||
1859 | # | |
1860 | # Check to make sure that the build environment is sane. | |
1861 | # | |
1862 | ||
1863 | AC_DEFUN(AM_SANITY_CHECK, | |
1864 | [AC_MSG_CHECKING([whether build environment is sane]) | |
1865 | # Just in case | |
1866 | sleep 1 | |
1867 | echo timestamp > conftestfile | |
1868 | # Do `set' in a subshell so we don't clobber the current shell's | |
1869 | # arguments. Must try -L first in case configure is actually a | |
1870 | # symlink; some systems play weird games with the mod time of symlinks | |
1871 | # (eg FreeBSD returns the mod time of the symlink's containing | |
1872 | # directory). | |
1873 | if ( | |
1874 | set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null` | |
1875 | if test "[$]*" = "X"; then | |
1876 | # -L didn't work. | |
1877 | set X `ls -t $srcdir/configure conftestfile` | |
1878 | fi | |
1879 | if test "[$]*" != "X $srcdir/configure conftestfile" \ | |
1880 | && test "[$]*" != "X conftestfile $srcdir/configure"; then | |
1881 | ||
1882 | # If neither matched, then we have a broken ls. This can happen | |
1883 | # if, for instance, CONFIG_SHELL is bash and it inherits a | |
1884 | # broken ls alias from the environment. This has actually | |
1885 | # happened. Such a system could not be considered "sane". | |
1886 | AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken | |
1887 | alias in your environment]) | |
1888 | fi | |
1889 | ||
1890 | test "[$]2" = conftestfile | |
1891 | ) | |
1892 | then | |
1893 | # Ok. | |
1894 | : | |
1895 | else | |
1896 | AC_MSG_ERROR([newly created file is older than distributed files! | |
1897 | Check your system clock]) | |
1898 | fi | |
1899 | rm -f conftest* | |
1900 | AC_MSG_RESULT(yes)]) | |
1901 | ||
1902 | dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) | |
1903 | dnl The program must properly implement --version. | |
1904 | AC_DEFUN(AM_MISSING_PROG, | |
1905 | [AC_MSG_CHECKING(for working $2) | |
1906 | # Run test in a subshell; some versions of sh will print an error if | |
1907 | # an executable is not found, even if stderr is redirected. | |
1908 | # Redirect stdin to placate older versions of autoconf. Sigh. | |
1909 | if ($2 --version) < /dev/null > /dev/null 2>&1; then | |
1910 | $1=$2 | |
1911 | AC_MSG_RESULT(found) | |
1912 | else | |
1913 | $1="$3/missing $2" | |
1914 | AC_MSG_RESULT(missing) | |
1915 | fi | |
1916 | AC_SUBST($1)]) | |
1917 | ||
1918 | # Add --enable-maintainer-mode option to configure. | |
1919 | # From Jim Meyering | |
1920 | ||
1921 | # serial 1 | |
1922 | ||
1923 | AC_DEFUN(AM_MAINTAINER_MODE, | |
1924 | [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
1925 | dnl maintainer-mode is disabled by default | |
1926 | AC_ARG_ENABLE(maintainer-mode, | |
1927 | [ --enable-maintainer-mode enable make rules and dependencies not useful | |
1928 | (and sometimes confusing) to the casual installer], | |
1929 | USE_MAINTAINER_MODE=$enableval, | |
1930 | USE_MAINTAINER_MODE=no) | |
1931 | AC_MSG_RESULT($USE_MAINTAINER_MODE) | |
1932 | AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes) | |
1933 | MAINT=$MAINTAINER_MODE_TRUE | |
1934 | AC_SUBST(MAINT)dnl | |
1935 | ] | |
1936 | ) | |
1937 | ||
1938 | # Define a conditional. | |
1939 | ||
1940 | AC_DEFUN(AM_CONDITIONAL, | |
1941 | [AC_SUBST($1_TRUE) | |
1942 | AC_SUBST($1_FALSE) | |
1943 | if $2; then | |
1944 | $1_TRUE= | |
1945 | $1_FALSE='#' | |
1946 | else | |
1947 | $1_TRUE='#' | |
1948 | $1_FALSE= | |
1949 | fi]) | |
1950 | ||
b2dad0e3 BK |
1951 | # Like AC_CONFIG_HEADER, but automatically create stamp file. |
1952 | ||
1953 | AC_DEFUN(AM_CONFIG_HEADER, | |
1954 | [AC_PREREQ([2.12]) | |
1955 | AC_CONFIG_HEADER([$1]) | |
1956 | dnl When config.status generates a header, we must update the stamp-h file. | |
1957 | dnl This file resides in the same directory as the config header | |
1958 | dnl that is generated. We must strip everything past the first ":", | |
1959 | dnl and everything past the last "/". | |
1960 | AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl | |
1961 | ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, | |
1962 | <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, | |
1963 | <<am_indx=1 | |
1964 | for am_file in <<$1>>; do | |
1965 | case " <<$>>CONFIG_HEADERS " in | |
1966 | *" <<$>>am_file "*<<)>> | |
1967 | echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx | |
1968 | ;; | |
1969 | esac | |
1970 | am_indx=`expr "<<$>>am_indx" + 1` | |
1971 | done<<>>dnl>>) | |
1972 | changequote([,]))]) | |
1973 |