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92eabea2 PE |
1 | dnl |
2 | dnl GLIBCXX_CONDITIONAL (NAME, SHELL-TEST) | |
3 | dnl | |
4 | dnl Exactly like AM_CONDITIONAL, but delays evaluation of the test until the | |
5 | dnl end of configure. This lets tested variables be reassigned, and the | |
6 | dnl conditional will depend on the final state of the variable. For a simple | |
7 | dnl example of why this is needed, see GLIBCXX_ENABLE_HOSTED. | |
8 | dnl | |
9 | m4_define([_m4_divert(glibcxx_diversion)], 8000)dnl | |
f214923c | 10 | AC_DEFUN([GLIBCXX_CONDITIONAL], [dnl |
92eabea2 PE |
11 | m4_divert_text([glibcxx_diversion],dnl |
12 | AM_CONDITIONAL([$1],[$2]) | |
13 | )dnl | |
14 | ])dnl | |
f214923c | 15 | AC_DEFUN([GLIBCXX_EVALUATE_CONDITIONALS], [m4_undivert([glibcxx_diversion])])dnl |
92eabea2 PE |
16 | |
17 | ||
ff66d28f PE |
18 | dnl |
19 | dnl Check to see what architecture and operating system we are compiling | |
20 | dnl for. Also, if architecture- or OS-specific flags are required for | |
21 | dnl compilation, pick them up here. | |
22 | dnl | |
f214923c | 23 | AC_DEFUN([GLIBCXX_CHECK_HOST], [ |
ff66d28f | 24 | . $glibcxx_srcdir/configure.host |
f214923c BK |
25 | AC_MSG_NOTICE([CPU config directory is $cpu_include_dir]) |
26 | AC_MSG_NOTICE([OS config directory is $os_include_dir]) | |
ff66d28f PE |
27 | ]) |
28 | ||
ff66d28f PE |
29 | dnl |
30 | dnl Initialize the rest of the library configury. At this point we have | |
31 | dnl variables like $host. | |
aebb8c22 | 32 | dnl |
ff66d28f | 33 | dnl Sets: |
82ba99d5 | 34 | dnl SUBDIRS |
ff66d28f PE |
35 | dnl Substs: |
36 | dnl glibcxx_builddir (absolute path) | |
37 | dnl glibcxx_srcdir (absolute path) | |
5d1c8e77 | 38 | dnl toplevel_builddir (absolute path) |
ff66d28f PE |
39 | dnl toplevel_srcdir (absolute path) |
40 | dnl with_cross_host | |
41 | dnl with_newlib | |
42 | dnl with_target_subdir | |
43 | dnl plus | |
44 | dnl - the variables in GLIBCXX_CHECK_HOST / configure.host | |
45 | dnl - default settings for all AM_CONFITIONAL test variables | |
46 | dnl - lots of tools, like CC and CXX | |
aebb8c22 | 47 | dnl |
f214923c | 48 | AC_DEFUN([GLIBCXX_CONFIGURE], [ |
82ba99d5 PE |
49 | # Keep these sync'd with the list in Makefile.am. The first provides an |
50 | # expandable list at autoconf time; the second provides an expandable list | |
51 | # (i.e., shell variable) at configure time. | |
8bae34da | 52 | m4_define([glibcxx_SUBDIRS],[include libsupc++ python src src/c++98 src/c++11 doc po testsuite]) |
82ba99d5 PE |
53 | SUBDIRS='glibcxx_SUBDIRS' |
54 | ||
d2caef2e PE |
55 | # These need to be absolute paths, yet at the same time need to |
56 | # canonicalize only relative paths, because then amd will not unmount | |
57 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
3d7c150e | 58 | glibcxx_builddir=`${PWDCMD-pwd}` |
d2caef2e | 59 | case $srcdir in |
ff66d28f PE |
60 | [\\/$]* | ?:[\\/]*) glibcxx_srcdir=${srcdir} ;; |
61 | *) glibcxx_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
d2caef2e | 62 | esac |
5d1c8e77 | 63 | toplevel_builddir=${glibcxx_builddir}/.. |
ff66d28f | 64 | toplevel_srcdir=${glibcxx_srcdir}/.. |
3d7c150e BK |
65 | AC_SUBST(glibcxx_builddir) |
66 | AC_SUBST(glibcxx_srcdir) | |
5d1c8e77 | 67 | AC_SUBST(toplevel_builddir) |
ff66d28f | 68 | AC_SUBST(toplevel_srcdir) |
d2caef2e | 69 | |
ff66d28f PE |
70 | # We use these options to decide which functions to include. They are |
71 | # set from the top level. | |
72 | AC_ARG_WITH([target-subdir], | |
73 | AC_HELP_STRING([--with-target-subdir=SUBDIR], | |
b329dd10 | 74 | [configuring in a subdirectory])) |
ff66d28f PE |
75 | |
76 | AC_ARG_WITH([cross-host], | |
77 | AC_HELP_STRING([--with-cross-host=HOST], | |
b329dd10 | 78 | [configuring with a cross compiler])) |
ff66d28f PE |
79 | |
80 | AC_ARG_WITH([newlib], | |
81 | AC_HELP_STRING([--with-newlib], | |
b329dd10 | 82 | [assume newlib as a system C library])) |
ff66d28f | 83 | |
ff66d28f PE |
84 | # Will set LN_S to either 'ln -s', 'ln', or 'cp -p' (if linking isn't |
85 | # available). Uncomment the next line to force a particular method. | |
86 | AC_PROG_LN_S | |
87 | #LN_S='cp -p' | |
88 | ||
5780a46b BK |
89 | AC_CHECK_TOOL(AS, as) |
90 | AC_CHECK_TOOL(AR, ar) | |
46840bcd | 91 | AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) |
b2dad0e3 | 92 | |
5780a46b | 93 | AM_MAINTAINER_MODE |
b2dad0e3 | 94 | |
92eabea2 PE |
95 | # Set up safe default values for all subsequent AM_CONDITIONAL tests |
96 | # which are themselves conditionally expanded. | |
97 | ## (Right now, this only matters for enable_wchar_t, but nothing prevents | |
98 | ## other macros from doing the same. This should be automated.) -pme | |
16da539b | 99 | |
176d6eb0 GP |
100 | # Check for C library flavor since GNU/Linux platforms use different |
101 | # configuration directories depending on the C library in use. | |
464aea98 JM |
102 | AC_EGREP_CPP([_using_uclibc], [ |
103 | #include <stdio.h> | |
104 | #if __UCLIBC__ | |
105 | _using_uclibc | |
106 | #endif | |
107 | ], uclibc=yes, uclibc=no) | |
108 | ||
aa6a73b9 MK |
109 | AC_EGREP_CPP([_using_bionic], [ |
110 | #include <stdio.h> | |
111 | #if __BIONIC__ | |
112 | _using_bionic | |
113 | #endif | |
114 | ], bionic=yes, bionic=no) | |
115 | ||
ff66d28f PE |
116 | # Find platform-specific directories containing configuration info. |
117 | # Also possibly modify flags used elsewhere, as needed by the platform. | |
3d7c150e | 118 | GLIBCXX_CHECK_HOST |
b2dad0e3 BK |
119 | ]) |
120 | ||
121 | ||
c470c17d | 122 | dnl |
52b55e7d PE |
123 | dnl Tests for newer compiler features, or features that are present in newer |
124 | dnl compiler versions but not older compiler versions still in use, should | |
125 | dnl be placed here. | |
b2dad0e3 | 126 | dnl |
ff66d28f PE |
127 | dnl Defines: |
128 | dnl WERROR='-Werror' if requested and possible; g++'s that lack the | |
129 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
130 | dnl Leave it out by default and use maint-mode to use it. | |
131 | dnl SECTION_FLAGS='-ffunction-sections -fdata-sections' if | |
132 | dnl compiler supports it and the user has not requested debug mode. | |
c21b6f87 | 133 | dnl |
f214923c | 134 | AC_DEFUN([GLIBCXX_CHECK_COMPILER_FEATURES], [ |
a4e99046 | 135 | # All these tests are for C++; save the language and the compiler flags. |
52b55e7d | 136 | # The CXXFLAGS thing is suspicious, but based on similar bits previously |
3d7c150e | 137 | # found in GLIBCXX_CONFIGURE. |
a4e99046 PE |
138 | AC_LANG_SAVE |
139 | AC_LANG_CPLUSPLUS | |
140 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
141 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 142 | |
7f586614 BK |
143 | # Check for maintainer-mode bits. |
144 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
145 | WERROR='' | |
8bd636c5 | 146 | else |
7f586614 | 147 | WERROR='-Werror' |
8bd636c5 PE |
148 | fi |
149 | ||
c470c17d BK |
150 | # Check for -ffunction-sections -fdata-sections |
151 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
85ee35ca BK |
152 | CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections' |
153 | AC_TRY_COMPILE([int foo; void bar() { };],, [ac_fdsections=yes], [ac_fdsections=no]) | |
c470c17d BK |
154 | if test "$ac_test_CXXFLAGS" = set; then |
155 | CXXFLAGS="$ac_save_CXXFLAGS" | |
156 | else | |
157 | # this is the suspicious part | |
158 | CXXFLAGS='' | |
159 | fi | |
6aa43d99 | 160 | if test x"$ac_fdsections" = x"yes"; then |
c470c17d BK |
161 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
162 | fi | |
163 | AC_MSG_RESULT($ac_fdsections) | |
164 | ||
a4e99046 | 165 | AC_LANG_RESTORE |
8bd636c5 | 166 | AC_SUBST(WERROR) |
c470c17d | 167 | AC_SUBST(SECTION_FLAGS) |
b2dad0e3 BK |
168 | ]) |
169 | ||
c470c17d BK |
170 | |
171 | dnl | |
421173e6 PE |
172 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
173 | dnl the native linker is in use, all variables will be defined to something | |
174 | dnl safe (like an empty string). | |
175 | dnl | |
ff66d28f PE |
176 | dnl Defines: |
177 | dnl SECTION_LDFLAGS='-Wl,--gc-sections' if possible | |
a429affe | 178 | dnl OPT_LDFLAGS='-Wl,-O1' and '-z,relro' if possible |
ff66d28f PE |
179 | dnl LD (as a side effect of testing) |
180 | dnl Sets: | |
181 | dnl with_gnu_ld | |
d60a2d4d | 182 | dnl glibcxx_ld_is_gold (set to "no" or "yes") |
ff66d28f PE |
183 | dnl glibcxx_gnu_ld_version (possibly) |
184 | dnl | |
185 | dnl The last will be a single integer, e.g., version 1.23.45.0.67.89 will | |
186 | dnl set glibcxx_gnu_ld_version to 12345. Zeros cause problems. | |
c470c17d | 187 | dnl |
f214923c | 188 | AC_DEFUN([GLIBCXX_CHECK_LINKER_FEATURES], [ |
421173e6 PE |
189 | # If we're not using GNU ld, then there's no point in even trying these |
190 | # tests. Check for that first. We should have already tested for gld | |
191 | # by now (in libtool), but require it now just to be safe... | |
654421eb DE |
192 | test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS='' |
193 | test -z "$OPT_LDFLAGS" && OPT_LDFLAGS='' | |
421173e6 | 194 | AC_REQUIRE([AC_PROG_LD]) |
ff66d28f | 195 | AC_REQUIRE([AC_PROG_AWK]) |
5bd17d39 | 196 | |
c98b201b PE |
197 | # The name set by libtool depends on the version of libtool. Shame on us |
198 | # for depending on an impl detail, but c'est la vie. Older versions used | |
199 | # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on | |
200 | # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually | |
201 | # makes sense). We'll test with_gnu_ld everywhere else, so if that isn't | |
202 | # set (hence we're using an older libtool), then set it. | |
203 | if test x${with_gnu_ld+set} != xset; then | |
204 | if test x${ac_cv_prog_gnu_ld+set} != xset; then | |
205 | # We got through "ac_require(ac_prog_ld)" and still not set? Huh? | |
206 | with_gnu_ld=no | |
207 | else | |
208 | with_gnu_ld=$ac_cv_prog_gnu_ld | |
209 | fi | |
210 | fi | |
211 | ||
212 | # Start by getting the version number. I think the libtool test already | |
213 | # does some of this, but throws away the result. | |
d60a2d4d | 214 | glibcxx_ld_is_gold=no |
e2c104d8 BK |
215 | if test x"$with_gnu_ld" = x"yes"; then |
216 | AC_MSG_CHECKING([for ld version]) | |
217 | changequote(,) | |
d60a2d4d ILT |
218 | if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then |
219 | glibcxx_ld_is_gold=yes | |
220 | fi | |
c82852f7 | 221 | ldver=`$LD --version 2>/dev/null | |
89c74f4a | 222 | sed -e 's/GNU gold /GNU ld /;s/GNU ld version /GNU ld /;s/GNU ld ([^)]*) /GNU ld /;s/GNU ld \([0-9.][0-9.]*\).*/\1/; q'` |
e2c104d8 BK |
223 | changequote([,]) |
224 | glibcxx_gnu_ld_version=`echo $ldver | \ | |
b329dd10 | 225 | $AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'` |
e2c104d8 BK |
226 | AC_MSG_RESULT($glibcxx_gnu_ld_version) |
227 | fi | |
c98b201b | 228 | |
5bd17d39 | 229 | # Set --gc-sections. |
d60a2d4d ILT |
230 | glibcxx_have_gc_sections=no |
231 | if test "$glibcxx_ld_is_gold" = "yes"; then | |
232 | if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then | |
233 | glibcxx_have_gc_sections=yes | |
234 | fi | |
235 | else | |
236 | glibcxx_gcsections_min_ld=21602 | |
b329dd10 | 237 | if test x"$with_gnu_ld" = x"yes" && |
ac2b2479 | 238 | test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then |
d60a2d4d ILT |
239 | glibcxx_have_gc_sections=yes |
240 | fi | |
241 | fi | |
242 | if test "$glibcxx_have_gc_sections" = "yes"; then | |
ac2b2479 BK |
243 | # Sufficiently young GNU ld it is! Joy and bunny rabbits! |
244 | # NB: This flag only works reliably after 2.16.1. Configure tests | |
245 | # for this are difficult, so hard wire a value that should work. | |
421173e6 | 246 | |
421173e6 PE |
247 | ac_test_CFLAGS="${CFLAGS+set}" |
248 | ac_save_CFLAGS="$CFLAGS" | |
2a0ab51c | 249 | CFLAGS='-Wl,--gc-sections' |
421173e6 PE |
250 | |
251 | # Check for -Wl,--gc-sections | |
252 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) | |
acb6e9be BK |
253 | AC_TRY_LINK([ int one(void) { return 1; } |
254 | int two(void) { return 2; } | |
255 | ], [ two(); ] , [ac_gcsections=yes], [ac_gcsections=no]) | |
360e8759 L |
256 | if test "$ac_gcsections" = "yes"; then |
257 | rm -f conftest.c | |
258 | touch conftest.c | |
259 | if $CC -c conftest.c; then | |
260 | if $LD --gc-sections -o conftest conftest.o 2>&1 | \ | |
261 | grep "Warning: gc-sections option ignored" > /dev/null; then | |
262 | ac_gcsections=no | |
263 | fi | |
264 | fi | |
265 | rm -f conftest.c conftest.o conftest | |
266 | fi | |
acb6e9be BK |
267 | if test "$ac_gcsections" = "yes"; then |
268 | SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS" | |
269 | fi | |
270 | AC_MSG_RESULT($ac_gcsections) | |
271 | ||
421173e6 PE |
272 | if test "$ac_test_CFLAGS" = set; then |
273 | CFLAGS="$ac_save_CFLAGS" | |
274 | else | |
275 | # this is the suspicious part | |
276 | CFLAGS='' | |
277 | fi | |
5bd17d39 | 278 | fi |
a9117427 | 279 | |
a429affe | 280 | # Set -z,relro. |
952c7b74 | 281 | # Note this is only for shared objects. |
a429affe BK |
282 | ac_ld_relro=no |
283 | if test x"$with_gnu_ld" = x"yes"; then | |
284 | AC_MSG_CHECKING([for ld that supports -Wl,-z,relro]) | |
285 | cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"` | |
286 | if test -n "$cxx_z_relo"; then | |
287 | OPT_LDFLAGS="-Wl,-z,relro" | |
288 | ac_ld_relro=yes | |
289 | fi | |
290 | AC_MSG_RESULT($ac_ld_relro) | |
291 | fi | |
292 | ||
5bd17d39 | 293 | # Set linker optimization flags. |
6aa43d99 | 294 | if test x"$with_gnu_ld" = x"yes"; then |
654421eb | 295 | OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS" |
421173e6 | 296 | fi |
5bd17d39 | 297 | |
c470c17d | 298 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 299 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
300 | ]) |
301 | ||
302 | ||
b2dad0e3 | 303 | dnl |
ff66d28f PE |
304 | dnl Check for headers for, and arguments to, the setrlimit() function. |
305 | dnl Used only in testsuite_hooks.h. Called from GLIBCXX_CONFIGURE_TESTSUITE. | |
6aa43d99 | 306 | dnl |
ff66d28f | 307 | dnl Defines: |
b329dd10 | 308 | dnl _GLIBCXX_RES_LIMITS if we can set artificial resource limits |
2ae6e982 | 309 | dnl various HAVE_LIMIT_* for individual limit names |
6aa43d99 | 310 | dnl |
f214923c | 311 | AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT_ancilliary], [ |
e0103440 | 312 | AC_MSG_CHECKING([for RLIMIT_$1]) |
ff66d28f PE |
313 | AC_TRY_COMPILE( |
314 | [#include <unistd.h> | |
315 | #include <sys/time.h> | |
316 | #include <sys/resource.h> | |
317 | ], | |
318 | [ int f = RLIMIT_$1 ; ], | |
319 | [glibcxx_mresult=1], [glibcxx_mresult=0]) | |
2ae6e982 | 320 | AC_DEFINE_UNQUOTED(HAVE_LIMIT_$1, $glibcxx_mresult, |
b329dd10 | 321 | [Only used in build directory testsuite_hooks.h.]) |
e0103440 GK |
322 | if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi |
323 | AC_MSG_RESULT($res) | |
ff66d28f PE |
324 | ]) |
325 | ||
f214923c | 326 | AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT], [ |
ff66d28f PE |
327 | setrlimit_have_headers=yes |
328 | AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h, | |
b329dd10 BK |
329 | [], |
330 | [setrlimit_have_headers=no]) | |
ff66d28f PE |
331 | # If don't have the headers, then we can't run the tests now, and we |
332 | # won't be seeing any of these during testsuite compilation. | |
333 | if test $setrlimit_have_headers = yes; then | |
334 | # Can't do these in a loop, else the resulting syntax is wrong. | |
335 | GLIBCXX_CHECK_SETRLIMIT_ancilliary(DATA) | |
336 | GLIBCXX_CHECK_SETRLIMIT_ancilliary(RSS) | |
337 | GLIBCXX_CHECK_SETRLIMIT_ancilliary(VMEM) | |
338 | GLIBCXX_CHECK_SETRLIMIT_ancilliary(AS) | |
2ae6e982 | 339 | GLIBCXX_CHECK_SETRLIMIT_ancilliary(FSIZE) |
ff66d28f PE |
340 | |
341 | # Check for rlimit, setrlimit. | |
6d26724a | 342 | AC_CACHE_VAL(glibcxx_cv_setrlimit, [ |
ff66d28f | 343 | AC_TRY_COMPILE( |
b329dd10 BK |
344 | [#include <unistd.h> |
345 | #include <sys/time.h> | |
346 | #include <sys/resource.h> | |
347 | ], | |
348 | [struct rlimit r; | |
349 | setrlimit(0, &r);], | |
350 | [glibcxx_cv_setrlimit=yes], [glibcxx_cv_setrlimit=no]) | |
ff66d28f PE |
351 | ]) |
352 | fi | |
353 | ||
2ae6e982 | 354 | AC_MSG_CHECKING([for testsuite resource limits support]) |
6d26724a | 355 | if test $setrlimit_have_headers = yes && test $glibcxx_cv_setrlimit = yes; then |
2ae6e982 | 356 | ac_res_limits=yes |
4651e622 | 357 | AC_DEFINE(_GLIBCXX_RES_LIMITS, 1, |
b329dd10 BK |
358 | [Define if using setrlimit to set resource limits during |
359 | "make check"]) | |
ff66d28f | 360 | else |
2ae6e982 | 361 | ac_res_limits=no |
ff66d28f | 362 | fi |
2ae6e982 | 363 | AC_MSG_RESULT($ac_res_limits) |
6aa43d99 BK |
364 | ]) |
365 | ||
366 | ||
6aa43d99 | 367 | dnl |
ff66d28f PE |
368 | dnl Check whether S_ISREG (Posix) or S_IFREG is available in <sys/stat.h>. |
369 | dnl Define HAVE_S_ISREG / HAVE_S_IFREG appropriately. | |
6aa43d99 | 370 | dnl |
f214923c | 371 | AC_DEFUN([GLIBCXX_CHECK_S_ISREG_OR_S_IFREG], [ |
74745ec5 PC |
372 | |
373 | AC_LANG_SAVE | |
374 | AC_LANG_CPLUSPLUS | |
375 | ac_save_CXXFLAGS="$CXXFLAGS" | |
376 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
377 | ||
e0103440 | 378 | AC_MSG_CHECKING([for S_ISREG or S_IFREG]) |
ff66d28f | 379 | AC_CACHE_VAL(glibcxx_cv_S_ISREG, [ |
74745ec5 | 380 | GCC_TRY_COMPILE_OR_LINK( |
ff66d28f PE |
381 | [#include <sys/stat.h>], |
382 | [struct stat buffer; | |
383 | fstat(0, &buffer); | |
384 | S_ISREG(buffer.st_mode);], | |
385 | [glibcxx_cv_S_ISREG=yes], | |
386 | [glibcxx_cv_S_ISREG=no]) | |
387 | ]) | |
388 | AC_CACHE_VAL(glibcxx_cv_S_IFREG, [ | |
74745ec5 | 389 | GCC_TRY_COMPILE_OR_LINK( |
ff66d28f PE |
390 | [#include <sys/stat.h>], |
391 | [struct stat buffer; | |
392 | fstat(0, &buffer); | |
393 | S_IFREG & buffer.st_mode;], | |
394 | [glibcxx_cv_S_IFREG=yes], | |
395 | [glibcxx_cv_S_IFREG=no]) | |
396 | ]) | |
e0103440 | 397 | res=no |
ff66d28f | 398 | if test $glibcxx_cv_S_ISREG = yes; then |
b329dd10 BK |
399 | AC_DEFINE(HAVE_S_ISREG, 1, |
400 | [Define if S_IFREG is available in <sys/stat.h>.]) | |
e0103440 | 401 | res=S_ISREG |
ff66d28f | 402 | elif test $glibcxx_cv_S_IFREG = yes; then |
4651e622 | 403 | AC_DEFINE(HAVE_S_IFREG, 1, |
b329dd10 | 404 | [Define if S_IFREG is available in <sys/stat.h>.]) |
e0103440 | 405 | res=S_IFREG |
ff66d28f | 406 | fi |
e0103440 | 407 | AC_MSG_RESULT($res) |
74745ec5 PC |
408 | |
409 | CXXFLAGS="$ac_save_CXXFLAGS" | |
410 | AC_LANG_RESTORE | |
b2dad0e3 BK |
411 | ]) |
412 | ||
413 | ||
dcfa0bc8 | 414 | dnl |
ff66d28f | 415 | dnl Check whether poll is available in <poll.h>, and define HAVE_POLL. |
dcfa0bc8 | 416 | dnl |
f214923c | 417 | AC_DEFUN([GLIBCXX_CHECK_POLL], [ |
74745ec5 PC |
418 | |
419 | AC_LANG_SAVE | |
420 | AC_LANG_CPLUSPLUS | |
421 | ac_save_CXXFLAGS="$CXXFLAGS" | |
422 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
423 | ||
e0103440 | 424 | AC_MSG_CHECKING([for poll]) |
ff66d28f | 425 | AC_CACHE_VAL(glibcxx_cv_POLL, [ |
74745ec5 | 426 | GCC_TRY_COMPILE_OR_LINK( |
ff66d28f PE |
427 | [#include <poll.h>], |
428 | [struct pollfd pfd[1]; | |
429 | pfd[0].events = POLLIN; | |
430 | poll(pfd, 1, 0);], | |
431 | [glibcxx_cv_POLL=yes], | |
432 | [glibcxx_cv_POLL=no]) | |
433 | ]) | |
434 | if test $glibcxx_cv_POLL = yes; then | |
4651e622 | 435 | AC_DEFINE(HAVE_POLL, 1, [Define if poll is available in <poll.h>.]) |
ff66d28f | 436 | fi |
e0103440 | 437 | AC_MSG_RESULT($glibcxx_cv_POLL) |
74745ec5 PC |
438 | |
439 | CXXFLAGS="$ac_save_CXXFLAGS" | |
440 | AC_LANG_RESTORE | |
ff66d28f PE |
441 | ]) |
442 | ||
443 | ||
444 | dnl | |
445 | dnl Check whether writev is available in <sys/uio.h>, and define HAVE_WRITEV. | |
446 | dnl | |
f214923c | 447 | AC_DEFUN([GLIBCXX_CHECK_WRITEV], [ |
74745ec5 PC |
448 | |
449 | AC_LANG_SAVE | |
450 | AC_LANG_CPLUSPLUS | |
451 | ac_save_CXXFLAGS="$CXXFLAGS" | |
452 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
453 | ||
e0103440 | 454 | AC_MSG_CHECKING([for writev]) |
ff66d28f | 455 | AC_CACHE_VAL(glibcxx_cv_WRITEV, [ |
74745ec5 | 456 | GCC_TRY_COMPILE_OR_LINK( |
ff66d28f PE |
457 | [#include <sys/uio.h>], |
458 | [struct iovec iov[2]; | |
459 | writev(0, iov, 0);], | |
460 | [glibcxx_cv_WRITEV=yes], | |
461 | [glibcxx_cv_WRITEV=no]) | |
462 | ]) | |
463 | if test $glibcxx_cv_WRITEV = yes; then | |
4651e622 | 464 | AC_DEFINE(HAVE_WRITEV, 1, [Define if writev is available in <sys/uio.h>.]) |
ff66d28f | 465 | fi |
e0103440 | 466 | AC_MSG_RESULT($glibcxx_cv_WRITEV) |
74745ec5 PC |
467 | |
468 | CXXFLAGS="$ac_save_CXXFLAGS" | |
469 | AC_LANG_RESTORE | |
ff66d28f PE |
470 | ]) |
471 | ||
472 | ||
3d05b345 PC |
473 | dnl |
474 | dnl Check whether int64_t is available in <stdint.h>, and define HAVE_INT64_T. | |
fc9ab7b4 | 475 | dnl Also check whether int64_t is actually a typedef to long or long long. |
3d05b345 | 476 | dnl |
f214923c | 477 | AC_DEFUN([GLIBCXX_CHECK_INT64_T], [ |
fc9ab7b4 PC |
478 | |
479 | AC_LANG_SAVE | |
480 | AC_LANG_CPLUSPLUS | |
481 | ||
e0103440 | 482 | AC_MSG_CHECKING([for int64_t]) |
3d05b345 PC |
483 | AC_CACHE_VAL(glibcxx_cv_INT64_T, [ |
484 | AC_TRY_COMPILE( | |
485 | [#include <stdint.h>], | |
486 | [int64_t var;], | |
487 | [glibcxx_cv_INT64_T=yes], | |
488 | [glibcxx_cv_INT64_T=no]) | |
489 | ]) | |
fc9ab7b4 | 490 | |
3d05b345 | 491 | if test $glibcxx_cv_INT64_T = yes; then |
4651e622 | 492 | AC_DEFINE(HAVE_INT64_T, 1, [Define if int64_t is available in <stdint.h>.]) |
fc9ab7b4 PC |
493 | AC_MSG_RESULT($glibcxx_cv_INT64_T) |
494 | ||
495 | AC_MSG_CHECKING([for int64_t as long]) | |
496 | AC_CACHE_VAL(glibcxx_cv_int64_t_long, [ | |
497 | AC_TRY_COMPILE( | |
b329dd10 BK |
498 | [#include <stdint.h> |
499 | template<typename, typename> struct same { enum { value = -1 }; }; | |
500 | template<typename Tp> struct same<Tp, Tp> { enum { value = 1 }; }; | |
501 | int array[same<int64_t, long>::value];], [], | |
fc9ab7b4 PC |
502 | [glibcxx_cv_int64_t_long=yes], [glibcxx_cv_int64_t_long=no]) |
503 | ]) | |
504 | ||
505 | if test $glibcxx_cv_int64_t_long = yes; then | |
506 | AC_DEFINE(HAVE_INT64_T_LONG, 1, [Define if int64_t is a long.]) | |
507 | AC_MSG_RESULT($glibcxx_cv_int64_t_long) | |
508 | fi | |
509 | ||
510 | AC_MSG_CHECKING([for int64_t as long long]) | |
511 | AC_CACHE_VAL(glibcxx_cv_int64_t_long_long, [ | |
512 | AC_TRY_COMPILE( | |
b329dd10 BK |
513 | [#include <stdint.h> |
514 | template<typename, typename> struct same { enum { value = -1 }; }; | |
515 | template<typename Tp> struct same<Tp, Tp> { enum { value = 1 }; }; | |
516 | int array[same<int64_t, long long>::value];], [], | |
fc9ab7b4 PC |
517 | [glibcxx_cv_int64_t_long_long=yes], [glibcxx_cv_int64_t_long_long=no]) |
518 | ]) | |
519 | ||
520 | if test $glibcxx_cv_int64_t_long_long = yes; then | |
521 | AC_DEFINE(HAVE_INT64_T_LONG_LONG, 1, [Define if int64_t is a long long.]) | |
522 | AC_MSG_RESULT($glibcxx_cv_int64_t_long_long) | |
523 | fi | |
3d05b345 | 524 | fi |
fc9ab7b4 PC |
525 | |
526 | AC_LANG_RESTORE | |
3d05b345 PC |
527 | ]) |
528 | ||
529 | ||
530 | dnl | |
531 | dnl Check whether LFS support is available. | |
532 | dnl | |
f214923c | 533 | AC_DEFUN([GLIBCXX_CHECK_LFS], [ |
0c6b814a | 534 | AC_LANG_SAVE |
9d47bc51 PC |
535 | AC_LANG_CPLUSPLUS |
536 | ac_save_CXXFLAGS="$CXXFLAGS" | |
b329dd10 | 537 | CXXFLAGS="$CXXFLAGS -fno-exceptions" |
e0103440 | 538 | AC_MSG_CHECKING([for LFS support]) |
3d05b345 | 539 | AC_CACHE_VAL(glibcxx_cv_LFS, [ |
74745ec5 | 540 | GCC_TRY_COMPILE_OR_LINK( |
0c6b814a PC |
541 | [#include <unistd.h> |
542 | #include <stdio.h> | |
dd5d134b | 543 | #include <sys/stat.h> |
0c6b814a | 544 | ], |
5c89246d PC |
545 | [FILE* fp; |
546 | fopen64("t", "w"); | |
547 | fseeko64(fp, 0, SEEK_CUR); | |
548 | ftello64(fp); | |
dd5d134b PC |
549 | lseek64(1, 0, SEEK_CUR); |
550 | struct stat64 buf; | |
551 | fstat64(1, &buf);], | |
3d05b345 PC |
552 | [glibcxx_cv_LFS=yes], |
553 | [glibcxx_cv_LFS=no]) | |
554 | ]) | |
555 | if test $glibcxx_cv_LFS = yes; then | |
4651e622 | 556 | AC_DEFINE(_GLIBCXX_USE_LFS, 1, [Define if LFS support is available.]) |
3d05b345 | 557 | fi |
e0103440 | 558 | AC_MSG_RESULT($glibcxx_cv_LFS) |
9d47bc51 PC |
559 | CXXFLAGS="$ac_save_CXXFLAGS" |
560 | AC_LANG_RESTORE | |
3d05b345 PC |
561 | ]) |
562 | ||
563 | ||
1165dc50 PC |
564 | dnl |
565 | dnl Check for whether a fully dynamic basic_string implementation should | |
566 | dnl be turned on, that does not put empty objects in per-process static | |
567 | dnl memory (mostly useful together with shared memory allocators, see PR | |
568 | dnl libstdc++/16612 for details). | |
569 | dnl | |
d7a3ef97 JY |
570 | dnl --enable-fully-dynamic-string defines _GLIBCXX_FULLY_DYNAMIC_STRING to 1 |
571 | dnl --disable-fully-dynamic-string defines _GLIBCXX_FULLY_DYNAMIC_STRING to 0 | |
572 | dnl otherwise undefined | |
1165dc50 PC |
573 | dnl + Usage: GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING[(DEFAULT)] |
574 | dnl Where DEFAULT is either `yes' or `no'. | |
575 | dnl | |
576 | AC_DEFUN([GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING], [ | |
577 | GLIBCXX_ENABLE(fully-dynamic-string,$1,,[do not put empty strings in per-process static memory]) | |
578 | if test $enable_fully_dynamic_string = yes; then | |
d7a3ef97 JY |
579 | enable_fully_dynamic_string_def=1 |
580 | else | |
581 | enable_fully_dynamic_string_def=0 | |
1165dc50 | 582 | fi |
d7a3ef97 JY |
583 | AC_DEFINE_UNQUOTED([_GLIBCXX_FULLY_DYNAMIC_STRING], [${enable_fully_dynamic_string_def}], |
584 | [Define to 1 if a fully dynamic basic_string is wanted, 0 to disable, undefined for platform defaults]) | |
1165dc50 PC |
585 | ]) |
586 | ||
587 | ||
ff66d28f PE |
588 | dnl |
589 | dnl Does any necessary configuration of the testsuite directory. Generates | |
590 | dnl the testsuite_hooks.h header. | |
591 | dnl | |
592 | dnl GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE must be done before this. | |
593 | dnl | |
594 | dnl Sets: | |
b329dd10 | 595 | dnl enable_abi_check |
e3f78d9b BK |
596 | dnl GLIBCXX_TEST_WCHAR_T |
597 | dnl GLIBCXX_TEST_THREAD | |
ff66d28f PE |
598 | dnl Substs: |
599 | dnl baseline_dir | |
00fc1bf6 | 600 | dnl baseline_subdir_switch |
ff66d28f | 601 | dnl |
f214923c | 602 | AC_DEFUN([GLIBCXX_CONFIGURE_TESTSUITE], [ |
0646b059 | 603 | if $GLIBCXX_IS_NATIVE ; then |
2ae6e982 | 604 | # Do checks for resource limit functions. |
ff66d28f PE |
605 | GLIBCXX_CHECK_SETRLIMIT |
606 | ||
607 | # Look for setenv, so that extended locale tests can be performed. | |
608 | GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv) | |
0646b059 | 609 | fi |
dbc66058 | 610 | |
0646b059 GK |
611 | if $GLIBCXX_IS_NATIVE && test $is_hosted = yes && |
612 | test $enable_symvers != no; then | |
613 | case "$host" in | |
614 | *-*-cygwin*) | |
b329dd10 | 615 | enable_abi_check=no ;; |
0646b059 | 616 | *) |
b329dd10 | 617 | enable_abi_check=yes ;; |
0646b059 | 618 | esac |
dbc66058 DJ |
619 | else |
620 | # Only build this as native, since automake does not understand | |
621 | # CXX_FOR_BUILD. | |
622 | enable_abi_check=no | |
ff66d28f | 623 | fi |
b329dd10 | 624 | |
ff66d28f | 625 | # Export file names for ABI checking. |
68c512f6 | 626 | baseline_dir="$glibcxx_srcdir/config/abi/post/${abi_baseline_pair}" |
ff66d28f | 627 | AC_SUBST(baseline_dir) |
00fc1bf6 RO |
628 | baseline_subdir_switch="$abi_baseline_subdir_switch" |
629 | AC_SUBST(baseline_subdir_switch) | |
ff66d28f PE |
630 | ]) |
631 | ||
632 | ||
b329dd10 | 633 | dnl |
c1e0e100 | 634 | dnl Does any necessary configuration for docbook in the docs directory. |
b329dd10 BK |
635 | dnl |
636 | dnl XSLTPROC must be set before this | |
637 | dnl | |
638 | dnl Sets: | |
639 | dnl glibcxx_stylesheets | |
640 | dnl Substs: | |
641 | dnl XSL_STYLE_DIR | |
642 | dnl | |
643 | AC_DEFUN([GLIBCXX_CONFIGURE_DOCBOOK], [ | |
644 | ||
c1e0e100 | 645 | AC_MSG_CHECKING([for docbook stylesheets for documentation creation]) |
b329dd10 BK |
646 | glibcxx_stylesheets=no |
647 | if test x${XSLTPROC} = xyes && echo '<title/>' | xsltproc --noout --nonet --xinclude http://docbook.sourceforge.net/release/xsl-ns/current/xhtml-1_1/docbook.xsl - 2>/dev/null; then | |
648 | glibcxx_stylesheets=yes | |
649 | fi | |
650 | AC_MSG_RESULT($glibcxx_stylesheets) | |
651 | ||
652 | AC_MSG_CHECKING([for local stylesheet directory]) | |
653 | glibcxx_local_stylesheets=no | |
654 | if test x"$glibcxx_stylesheets" = x"yes"; then | |
655 | if test -d /usr/share/sgml/docbook/xsl-ns-stylesheets; then | |
656 | glibcxx_local_stylesheets=yes | |
657 | XSL_STYLE_DIR=/usr/share/sgml/docbook/xsl-ns-stylesheets | |
658 | fi | |
659 | if test -d /usr/share/xml/docbook/stylesheet/docbook-xsl-ns; then | |
660 | glibcxx_local_stylesheets=yes | |
661 | XSL_STYLE_DIR=/usr/share/xml/docbook/stylesheet/docbook-xsl-ns | |
662 | fi | |
663 | fi | |
664 | AC_MSG_RESULT($glibcxx_local_stylesheets) | |
665 | ||
666 | if test x"$glibcxx_local_stylesheets" = x"yes"; then | |
667 | AC_SUBST(XSL_STYLE_DIR) | |
668 | AC_MSG_NOTICE($XSL_STYLE_DIR) | |
669 | else | |
670 | glibcxx_stylesheets=no | |
671 | fi | |
c1e0e100 BK |
672 | |
673 | # Check for epub3 dependencies. | |
674 | AC_MSG_CHECKING([for epub3 stylesheets for documentation creation]) | |
675 | glibcxx_epub_stylesheets=no | |
676 | if test x"$glibcxx_local_stylesheets" = x"yes"; then | |
e9469833 | 677 | if test -f "$XSL_STYLE_DIR/epub3/chunk.xsl"; then |
c1e0e100 BK |
678 | glibcxx_epub_stylesheets=yes |
679 | fi | |
680 | fi | |
681 | AC_MSG_RESULT($glibcxx_epub_stylesheets) | |
e9469833 | 682 | AM_CONDITIONAL(BUILD_EPUB, test x"$glibcxx_epub_stylesheets" = x"yes") |
c1e0e100 | 683 | |
b329dd10 BK |
684 | ]) |
685 | ||
686 | ||
ff66d28f PE |
687 | dnl |
688 | dnl Set up *_INCLUDES variables for all sundry Makefile.am's. | |
689 | dnl | |
690 | dnl Substs: | |
691 | dnl GLIBCXX_INCLUDES | |
692 | dnl TOPLEVEL_INCLUDES | |
ff66d28f | 693 | dnl |
f214923c | 694 | AC_DEFUN([GLIBCXX_EXPORT_INCLUDES], [ |
0df3f383 PE |
695 | # Used for every C++ compile we perform. |
696 | GLIBCXX_INCLUDES="\ | |
697 | -I$glibcxx_builddir/include/$host_alias \ | |
698 | -I$glibcxx_builddir/include \ | |
699 | -I$glibcxx_srcdir/libsupc++" | |
ff66d28f | 700 | |
0df3f383 | 701 | # For Canadian crosses, pick this up too. |
ff66d28f | 702 | if test $CANADIAN = yes; then |
37e0ff11 | 703 | GLIBCXX_INCLUDES="$GLIBCXX_INCLUDES -I\${includedir}" |
ff66d28f PE |
704 | fi |
705 | ||
0df3f383 | 706 | # Stuff in the actual top level. Currently only used by libsupc++ to |
201cdb74 RO |
707 | # get unwind* headers from the libgcc dir. |
708 | #TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/libgcc -I$(toplevel_srcdir)/include' | |
709 | TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/libgcc' | |
ff66d28f PE |
710 | |
711 | # Now, export this to all the little Makefiles.... | |
712 | AC_SUBST(GLIBCXX_INCLUDES) | |
713 | AC_SUBST(TOPLEVEL_INCLUDES) | |
ff66d28f PE |
714 | ]) |
715 | ||
716 | ||
717 | dnl | |
718 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
719 | dnl (SECTION_FLAGS is done under CHECK_COMPILER_FEATURES.) | |
720 | dnl | |
721 | dnl Substs: | |
722 | dnl OPTIMIZE_CXXFLAGS | |
723 | dnl WARN_FLAGS | |
724 | dnl | |
f214923c | 725 | AC_DEFUN([GLIBCXX_EXPORT_FLAGS], [ |
ff66d28f PE |
726 | # Optimization flags that are probably a good idea for thrill-seekers. Just |
727 | # uncomment the lines below and make, everything else is ready to go... | |
62801a96 | 728 | # Alternatively OPTIMIZE_CXXFLAGS can be set in configure.host. |
ff66d28f | 729 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc |
ff66d28f PE |
730 | AC_SUBST(OPTIMIZE_CXXFLAGS) |
731 | ||
b124c5c4 | 732 | WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi' |
ff66d28f PE |
733 | AC_SUBST(WARN_FLAGS) |
734 | ]) | |
735 | ||
736 | ||
737 | dnl | |
738 | dnl All installation directory information is determined here. | |
739 | dnl | |
740 | dnl Substs: | |
741 | dnl gxx_install_dir | |
742 | dnl glibcxx_prefixdir | |
743 | dnl glibcxx_toolexecdir | |
744 | dnl glibcxx_toolexeclibdir | |
745 | dnl | |
746 | dnl Assumes cross_compiling bits already done, and with_cross_host in | |
747 | dnl particular. | |
748 | dnl | |
0f57bf40 | 749 | dnl This logic must match gcc/configure.ac's setting of gcc_gxx_include_dir. |
505692b0 | 750 | dnl config/gxx-include-dir.m4 must be kept consistant with this as well. |
f214923c | 751 | AC_DEFUN([GLIBCXX_EXPORT_INSTALL_INFO], [ |
ff66d28f PE |
752 | glibcxx_toolexecdir=no |
753 | glibcxx_toolexeclibdir=no | |
754 | glibcxx_prefixdir=$prefix | |
755 | ||
756 | AC_MSG_CHECKING([for gxx-include-dir]) | |
757 | AC_ARG_WITH([gxx-include-dir], | |
758 | AC_HELP_STRING([--with-gxx-include-dir=DIR], | |
b329dd10 | 759 | [installation directory for include files]), |
ff66d28f PE |
760 | [case "$withval" in |
761 | yes) AC_MSG_ERROR([Missing directory for --with-gxx-include-dir]) ;; | |
762 | no) gxx_include_dir=no ;; | |
763 | *) gxx_include_dir=$withval ;; | |
764 | esac], | |
765 | [gxx_include_dir=no]) | |
766 | AC_MSG_RESULT($gxx_include_dir) | |
767 | ||
768 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
769 | AC_ARG_ENABLE([version-specific-runtime-libs], | |
770 | AC_HELP_STRING([--enable-version-specific-runtime-libs], | |
b329dd10 | 771 | [Specify that runtime libraries should be installed in a compiler-specific directory]), |
ff66d28f PE |
772 | [case "$enableval" in |
773 | yes) version_specific_libs=yes ;; | |
774 | no) version_specific_libs=no ;; | |
775 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
776 | esac], | |
777 | [version_specific_libs=no]) | |
778 | AC_MSG_RESULT($version_specific_libs) | |
779 | ||
780 | # Default case for install directory for include files. | |
781 | if test $version_specific_libs = no && test $gxx_include_dir = no; then | |
0f57bf40 | 782 | gxx_include_dir='include/c++/${gcc_version}' |
b329dd10 BK |
783 | if test -n "$with_cross_host" && |
784 | test x"$with_cross_host" != x"no"; then | |
0f57bf40 MM |
785 | gxx_include_dir='${prefix}/${target_alias}/'"$gxx_include_dir" |
786 | else | |
787 | gxx_include_dir='${prefix}/'"$gxx_include_dir" | |
788 | fi | |
ff66d28f PE |
789 | fi |
790 | ||
791 | # Version-specific runtime libs processing. | |
792 | if test $version_specific_libs = yes; then | |
793 | # Need the gcc compiler version to know where to install libraries | |
794 | # and header files if --enable-version-specific-runtime-libs option | |
0314451d GK |
795 | # is selected. FIXME: these variables are misnamed, there are |
796 | # no executables installed in _toolexecdir or _toolexeclibdir. | |
ff66d28f | 797 | if test x"$gxx_include_dir" = x"no"; then |
47194af4 | 798 | gxx_include_dir='${libdir}/gcc/${host_alias}/${gcc_version}/include/c++' |
ff66d28f | 799 | fi |
0314451d | 800 | glibcxx_toolexecdir='${libdir}/gcc/${host_alias}' |
47194af4 | 801 | glibcxx_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)' |
ff66d28f PE |
802 | fi |
803 | ||
804 | # Calculate glibcxx_toolexecdir, glibcxx_toolexeclibdir | |
805 | # Install a library built with a cross compiler in tooldir, not libdir. | |
806 | if test x"$glibcxx_toolexecdir" = x"no"; then | |
807 | if test -n "$with_cross_host" && | |
808 | test x"$with_cross_host" != x"no"; then | |
fbe057bb PE |
809 | glibcxx_toolexecdir='${exec_prefix}/${host_alias}' |
810 | glibcxx_toolexeclibdir='${toolexecdir}/lib' | |
ff66d28f | 811 | else |
0314451d | 812 | glibcxx_toolexecdir='${libdir}/gcc/${host_alias}' |
fbe057bb | 813 | glibcxx_toolexeclibdir='${libdir}' |
ff66d28f | 814 | fi |
fbe057bb | 815 | multi_os_directory=`$CXX -print-multi-os-directory` |
ff66d28f PE |
816 | case $multi_os_directory in |
817 | .) ;; # Avoid trailing /. | |
818 | *) glibcxx_toolexeclibdir=$glibcxx_toolexeclibdir/$multi_os_directory ;; | |
819 | esac | |
820 | fi | |
821 | ||
822 | AC_MSG_CHECKING([for install location]) | |
823 | AC_MSG_RESULT($gxx_include_dir) | |
824 | ||
825 | AC_SUBST(glibcxx_prefixdir) | |
826 | AC_SUBST(gxx_include_dir) | |
827 | AC_SUBST(glibcxx_toolexecdir) | |
828 | AC_SUBST(glibcxx_toolexeclibdir) | |
829 | ]) | |
830 | ||
831 | ||
832 | dnl | |
833 | dnl GLIBCXX_ENABLE | |
834 | dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING) | |
835 | dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c) | |
836 | dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER) | |
837 | dnl | |
838 | dnl See docs/html/17_intro/configury.html#enable for documentation. | |
839 | dnl | |
840 | m4_define([GLIBCXX_ENABLE],[dnl | |
841 | m4_define([_g_switch],[--enable-$1])dnl | |
b453ace3 AS |
842 | m4_define([_g_help],[AC_HELP_STRING([_g_switch$3],[$4 @<:@default=$2@:>@])])dnl |
843 | AC_ARG_ENABLE([$1],m4_dquote(_g_help), | |
ff66d28f PE |
844 | m4_bmatch([$5], |
845 | [^permit ], | |
846 | [[ | |
847 | case "$enableval" in | |
848 | m4_bpatsubst([$5],[permit ])) ;; | |
849 | *) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;; | |
b329dd10 BK |
850 | dnl Idea for future: generate a URL pointing to |
851 | dnl "onlinedocs/configopts.html#whatever" | |
ff66d28f PE |
852 | esac |
853 | ]], | |
854 | [^$], | |
855 | [[ | |
856 | case "$enableval" in | |
857 | yes|no) ;; | |
858 | *) AC_MSG_ERROR(Argument to enable/disable $1 must be yes or no) ;; | |
859 | esac | |
860 | ]], | |
861 | [[$5]]), | |
862 | [enable_]m4_bpatsubst([$1],-,_)[=][$2]) | |
863 | m4_undefine([_g_switch])dnl | |
864 | m4_undefine([_g_help])dnl | |
865 | ]) | |
866 | ||
867 | ||
868 | dnl | |
869 | dnl Check for ISO/IEC 9899:1999 "C99" support. | |
870 | dnl | |
871 | dnl --enable-c99 defines _GLIBCXX_USE_C99 | |
872 | dnl --disable-c99 leaves _GLIBCXX_USE_C99 undefined | |
873 | dnl + Usage: GLIBCXX_ENABLE_C99[(DEFAULT)] | |
874 | dnl Where DEFAULT is either `yes' or `no'. | |
875 | dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'. | |
876 | dnl | |
f214923c | 877 | AC_DEFUN([GLIBCXX_ENABLE_C99], [ |
ff66d28f PE |
878 | GLIBCXX_ENABLE(c99,$1,,[turns on ISO/IEC 9899:1999 support]) |
879 | ||
347669a0 BK |
880 | if test x"$enable_c99" = x"yes"; then |
881 | ||
ff66d28f PE |
882 | AC_LANG_SAVE |
883 | AC_LANG_CPLUSPLUS | |
884 | ||
18f310b7 PC |
885 | # Use -std=c++98 because the default (-std=gnu++98) leaves __STRICT_ANSI__ |
886 | # undefined and fake C99 facilities - like pre-standard snprintf - may be | |
887 | # spuriously enabled. | |
888 | # Long term, -std=c++0x could be even better, could manage to explicitely | |
889 | # request C99 facilities to the underlying C headers. | |
b6f914f6 | 890 | ac_save_CXXFLAGS="$CXXFLAGS" |
18f310b7 | 891 | CXXFLAGS="$CXXFLAGS -std=c++98" |
b6f914f6 RS |
892 | ac_save_LIBS="$LIBS" |
893 | ac_save_gcc_no_link="$gcc_no_link" | |
894 | ||
895 | if test x$gcc_no_link != xyes; then | |
896 | # Use -fno-exceptions to that the C driver can link these tests without | |
897 | # hitting undefined references to personality routines. | |
898 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
899 | AC_CHECK_LIB(m, sin, [ | |
900 | LIBS="$LIBS -lm" | |
901 | ], [ | |
902 | # Use the default compile-only tests in GCC_TRY_COMPILE_OR_LINK | |
903 | gcc_no_link=yes | |
904 | ]) | |
905 | fi | |
906 | ||
ff66d28f | 907 | # Check for the existence of <math.h> functions used if C99 is enabled. |
ff66d28f | 908 | AC_MSG_CHECKING([for ISO C99 support in <math.h>]) |
6d26724a | 909 | AC_CACHE_VAL(glibcxx_cv_c99_math, [ |
b6f914f6 RS |
910 | GCC_TRY_COMPILE_OR_LINK( |
911 | [#include <math.h> | |
912 | volatile double d1, d2; | |
913 | volatile int i;], | |
914 | [i = fpclassify(d1); | |
915 | i = isfinite(d1); | |
916 | i = isinf(d1); | |
917 | i = isnan(d1); | |
918 | i = isnormal(d1); | |
919 | i = signbit(d1); | |
920 | i = isgreater(d1, d2); | |
921 | i = isgreaterequal(d1, d2); | |
922 | i = isless(d1, d2); | |
923 | i = islessequal(d1, d2); | |
924 | i = islessgreater(d1, d2); | |
925 | i = islessgreater(d1, d2); | |
926 | i = isunordered(d1, d2); | |
6d26724a | 927 | ],[glibcxx_cv_c99_math=yes], [glibcxx_cv_c99_math=no]) |
347669a0 | 928 | ]) |
6d26724a RW |
929 | AC_MSG_RESULT($glibcxx_cv_c99_math) |
930 | if test x"$glibcxx_cv_c99_math" = x"yes"; then | |
4651e622 | 931 | AC_DEFINE(_GLIBCXX_USE_C99_MATH, 1, |
b329dd10 BK |
932 | [Define if C99 functions or macros in <math.h> should be imported |
933 | in <cmath> in namespace std.]) | |
517da0ce MM |
934 | fi |
935 | ||
225962a0 | 936 | # Check for the existence of <complex.h> complex math functions. |
52e6723c BK |
937 | # This is necessary even though libstdc++ uses the builtin versions |
938 | # of these functions, because if the builtin cannot be used, a reference | |
939 | # to the library function is emitted. | |
5ad2f32d | 940 | AC_CHECK_HEADERS(tgmath.h, ac_has_tgmath_h=yes, ac_has_tgmath_h=no) |
52e6723c | 941 | AC_CHECK_HEADERS(complex.h, ac_has_complex_h=yes, ac_has_complex_h=no) |
6d26724a | 942 | glibcxx_cv_c99_complex=no; |
52e6723c | 943 | if test x"$ac_has_complex_h" = x"yes"; then |
52e6723c | 944 | AC_MSG_CHECKING([for ISO C99 support in <complex.h>]) |
b6f914f6 RS |
945 | GCC_TRY_COMPILE_OR_LINK( |
946 | [#include <complex.h> | |
947 | typedef __complex__ float float_type; | |
948 | typedef __complex__ double double_type; | |
949 | typedef __complex__ long double ld_type; | |
950 | volatile float_type tmpf; | |
951 | volatile double_type tmpd; | |
952 | volatile ld_type tmpld; | |
953 | volatile float f; | |
954 | volatile double d; | |
955 | volatile long double ld;], | |
956 | [f = cabsf(tmpf); | |
957 | f = cargf(tmpf); | |
958 | tmpf = ccosf(tmpf); | |
959 | tmpf = ccoshf(tmpf); | |
960 | tmpf = cexpf(tmpf); | |
961 | tmpf = clogf(tmpf); | |
962 | tmpf = csinf(tmpf); | |
963 | tmpf = csinhf(tmpf); | |
964 | tmpf = csqrtf(tmpf); | |
965 | tmpf = ctanf(tmpf); | |
966 | tmpf = ctanhf(tmpf); | |
967 | tmpf = cpowf(tmpf, tmpf); | |
3cd54fc9 | 968 | tmpf = cprojf(tmpf); |
b6f914f6 RS |
969 | d = cabs(tmpd); |
970 | d = carg(tmpd); | |
971 | tmpd = ccos(tmpd); | |
972 | tmpd = ccosh(tmpd); | |
973 | tmpd = cexp(tmpd); | |
974 | tmpd = clog(tmpd); | |
975 | tmpd = csin(tmpd); | |
976 | tmpd = csinh(tmpd); | |
977 | tmpd = csqrt(tmpd); | |
978 | tmpd = ctan(tmpd); | |
979 | tmpd = ctanh(tmpd); | |
980 | tmpd = cpow(tmpd, tmpd); | |
3cd54fc9 | 981 | tmpd = cproj(tmpd); |
b6f914f6 RS |
982 | ld = cabsl(tmpld); |
983 | ld = cargl(tmpld); | |
984 | tmpld = ccosl(tmpld); | |
985 | tmpld = ccoshl(tmpld); | |
986 | tmpld = cexpl(tmpld); | |
987 | tmpld = clogl(tmpld); | |
988 | tmpld = csinl(tmpld); | |
989 | tmpld = csinhl(tmpld); | |
990 | tmpld = csqrtl(tmpld); | |
991 | tmpld = ctanl(tmpld); | |
992 | tmpld = ctanhl(tmpld); | |
993 | tmpld = cpowl(tmpld, tmpld); | |
3cd54fc9 | 994 | tmpld = cprojl(tmpld); |
6d26724a | 995 | ],[glibcxx_cv_c99_complex=yes], [glibcxx_cv_c99_complex=no]) |
52e6723c | 996 | fi |
6d26724a RW |
997 | AC_MSG_RESULT($glibcxx_cv_c99_complex) |
998 | if test x"$glibcxx_cv_c99_complex" = x"yes"; then | |
4651e622 | 999 | AC_DEFINE(_GLIBCXX_USE_C99_COMPLEX, 1, |
b329dd10 BK |
1000 | [Define if C99 functions in <complex.h> should be used in |
1001 | <complex>. Using compiler builtins for these functions requires | |
1002 | corresponding C99 library functions to be present.]) | |
52e6723c BK |
1003 | fi |
1004 | ||
ff66d28f | 1005 | # Check for the existence in <stdio.h> of vscanf, et. al. |
ff66d28f | 1006 | AC_MSG_CHECKING([for ISO C99 support in <stdio.h>]) |
6d26724a | 1007 | AC_CACHE_VAL(glibcxx_cv_c99_stdio, [ |
b6f914f6 RS |
1008 | GCC_TRY_COMPILE_OR_LINK( |
1009 | [#include <stdio.h> | |
1010 | #include <stdarg.h> | |
1011 | void foo(char* fmt, ...) | |
1012 | { | |
1013 | va_list args; va_start(args, fmt); | |
b329dd10 | 1014 | vfscanf(stderr, "%i", args); |
b6f914f6 RS |
1015 | vscanf("%i", args); |
1016 | vsnprintf(fmt, 0, "%i", args); | |
1017 | vsscanf(fmt, "%i", args); | |
1018 | }], | |
1019 | [snprintf("12", 0, "%i");], | |
6d26724a | 1020 | [glibcxx_cv_c99_stdio=yes], [glibcxx_cv_c99_stdio=no]) |
347669a0 | 1021 | ]) |
6d26724a | 1022 | AC_MSG_RESULT($glibcxx_cv_c99_stdio) |
ff66d28f PE |
1023 | |
1024 | # Check for the existence in <stdlib.h> of lldiv_t, et. al. | |
ff66d28f | 1025 | AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>]) |
6d26724a | 1026 | AC_CACHE_VAL(glibcxx_cv_c99_stdlib, [ |
b6f914f6 RS |
1027 | GCC_TRY_COMPILE_OR_LINK( |
1028 | [#include <stdlib.h> | |
1029 | volatile float f; | |
1030 | volatile long double ld; | |
1031 | volatile unsigned long long ll; | |
1032 | lldiv_t mydivt;], | |
1033 | [char* tmp; | |
1034 | f = strtof("gnu", &tmp); | |
1035 | ld = strtold("gnu", &tmp); | |
1036 | ll = strtoll("gnu", &tmp, 10); | |
1037 | ll = strtoull("gnu", &tmp, 10); | |
1038 | ll = llabs(10); | |
1039 | mydivt = lldiv(10,1); | |
1040 | ll = mydivt.quot; | |
1041 | ll = mydivt.rem; | |
1042 | ll = atoll("10"); | |
1043 | _Exit(0); | |
6d26724a | 1044 | ],[glibcxx_cv_c99_stdlib=yes], [glibcxx_cv_c99_stdlib=no]) |
347669a0 | 1045 | ]) |
6d26724a | 1046 | AC_MSG_RESULT($glibcxx_cv_c99_stdlib) |
ff66d28f | 1047 | |
8a9b2875 | 1048 | # Check for the existence in <wchar.h> of wcstold, etc. |
6d26724a | 1049 | glibcxx_cv_c99_wchar=no; |
347669a0 BK |
1050 | if test x"$ac_has_wchar_h" = xyes && |
1051 | test x"$ac_has_wctype_h" = xyes; then | |
b329dd10 | 1052 | AC_MSG_CHECKING([for ISO C99 support in <wchar.h>]) |
347669a0 | 1053 | AC_TRY_COMPILE([#include <wchar.h> |
b329dd10 BK |
1054 | namespace test |
1055 | { | |
347669a0 BK |
1056 | using ::wcstold; |
1057 | using ::wcstoll; | |
347669a0 | 1058 | using ::wcstoull; |
347669a0 | 1059 | } |
6d26724a | 1060 | ],[],[glibcxx_cv_c99_wchar=yes], [glibcxx_cv_c99_wchar=no]) |
347669a0 BK |
1061 | |
1062 | # Checks for wide character functions that may not be present. | |
1063 | # Injection of these is wrapped with guard macros. | |
1064 | # NB: only put functions here, instead of immediately above, if | |
1065 | # absolutely necessary. | |
1066 | AC_TRY_COMPILE([#include <wchar.h> | |
b329dd10 | 1067 | namespace test { using ::vfwscanf; } ], [], |
347669a0 BK |
1068 | [AC_DEFINE(HAVE_VFWSCANF,1, |
1069 | [Defined if vfwscanf exists.])],[]) | |
1070 | ||
1071 | AC_TRY_COMPILE([#include <wchar.h> | |
b329dd10 | 1072 | namespace test { using ::vswscanf; } ], [], |
347669a0 BK |
1073 | [AC_DEFINE(HAVE_VSWSCANF,1, |
1074 | [Defined if vswscanf exists.])],[]) | |
1075 | ||
1076 | AC_TRY_COMPILE([#include <wchar.h> | |
b329dd10 | 1077 | namespace test { using ::vwscanf; } ], [], |
347669a0 BK |
1078 | [AC_DEFINE(HAVE_VWSCANF,1,[Defined if vwscanf exists.])],[]) |
1079 | ||
1080 | AC_TRY_COMPILE([#include <wchar.h> | |
b329dd10 | 1081 | namespace test { using ::wcstof; } ], [], |
347669a0 BK |
1082 | [AC_DEFINE(HAVE_WCSTOF,1,[Defined if wcstof exists.])],[]) |
1083 | ||
1084 | AC_TRY_COMPILE([#include <wctype.h>], | |
b329dd10 | 1085 | [ wint_t t; int i = iswblank(t);], |
347669a0 BK |
1086 | [AC_DEFINE(HAVE_ISWBLANK,1, |
1087 | [Defined if iswblank exists.])],[]) | |
1088 | ||
6d26724a | 1089 | AC_MSG_RESULT($glibcxx_cv_c99_wchar) |
347669a0 | 1090 | fi |
ff66d28f | 1091 | |
347669a0 | 1092 | # Option parsed, now set things appropriately. |
6d26724a RW |
1093 | if test x"$glibcxx_cv_c99_math" = x"no" || |
1094 | test x"$glibcxx_cv_c99_complex" = x"no" || | |
1095 | test x"$glibcxx_cv_c99_stdio" = x"no" || | |
1096 | test x"$glibcxx_cv_c99_stdlib" = x"no" || | |
1097 | test x"$glibcxx_cv_c99_wchar" = x"no"; then | |
ff66d28f | 1098 | enable_c99=no; |
347669a0 | 1099 | else |
4651e622 KC |
1100 | AC_DEFINE(_GLIBCXX_USE_C99, 1, |
1101 | [Define if C99 functions or macros from <wchar.h>, <math.h>, | |
1102 | <complex.h>, <stdio.h>, and <stdlib.h> can be used or exposed.]) | |
ff66d28f PE |
1103 | fi |
1104 | ||
b6f914f6 RS |
1105 | gcc_no_link="$ac_save_gcc_no_link" |
1106 | LIBS="$ac_save_LIBS" | |
1107 | CXXFLAGS="$ac_save_CXXFLAGS" | |
ff66d28f | 1108 | AC_LANG_RESTORE |
b329dd10 | 1109 | fi |
347669a0 BK |
1110 | |
1111 | AC_MSG_CHECKING([for fully enabled ISO C99 support]) | |
1112 | AC_MSG_RESULT($enable_c99) | |
dcfa0bc8 PE |
1113 | ]) |
1114 | ||
1115 | ||
15e38d0d | 1116 | dnl |
959d14e1 | 1117 | dnl Check for clock_gettime, nanosleep and sched_yield, used in the |
9ab48d6e JW |
1118 | dnl implementation of 20.11.7 [time.clock], and 30.3.2 [thread.thread.this] |
1119 | dnl in the C++11 standard. | |
15e38d0d | 1120 | dnl |
959d14e1 CF |
1121 | dnl --enable-libstdcxx-time |
1122 | dnl --enable-libstdcxx-time=yes | |
1123 | dnl checks for the availability of monotonic and realtime clocks, | |
9ab48d6e JW |
1124 | dnl nanosleep and sched_yield in libc and libposix4 and, if needed, |
1125 | dnl links in the latter. | |
959d14e1 | 1126 | dnl --enable-libstdcxx-time=rt |
9ab48d6e | 1127 | dnl also searches (and, if needed, links) librt. Note that this is |
610870b2 | 1128 | dnl not always desirable because, in glibc, for example, in turn it |
6c3385c1 PC |
1129 | dnl triggers the linking of libpthread too, which activates locking, |
1130 | dnl a large overhead for single-thread programs. | |
959d14e1 CF |
1131 | dnl --enable-libstdcxx-time=no |
1132 | dnl --disable-libstdcxx-time | |
610870b2 PC |
1133 | dnl disables the checks completely |
1134 | dnl | |
959d14e1 | 1135 | AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [ |
610870b2 | 1136 | |
959d14e1 | 1137 | AC_MSG_CHECKING([for clock_gettime, nanosleep and sched_yield]) |
b453ace3 | 1138 | GLIBCXX_ENABLE(libstdcxx-time,$1,[[[=KIND]]], |
610870b2 PC |
1139 | [use KIND for check type], |
1140 | [permit yes|no|rt]) | |
15e38d0d CF |
1141 | |
1142 | AC_LANG_SAVE | |
1143 | AC_LANG_CPLUSPLUS | |
1144 | ac_save_CXXFLAGS="$CXXFLAGS" | |
1145 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
ec6fa56a PB |
1146 | ac_save_LIBS="$LIBS" |
1147 | ||
1ac5e52c MK |
1148 | ac_has_clock_monotonic=no |
1149 | ac_has_clock_realtime=no | |
1150 | AC_MSG_RESULT($enable_libstdcxx_time) | |
ec6fa56a | 1151 | |
959d14e1 | 1152 | if test x"$enable_libstdcxx_time" != x"no"; then |
ec6fa56a | 1153 | |
959d14e1 | 1154 | if test x"$enable_libstdcxx_time" = x"rt"; then |
610870b2 | 1155 | AC_SEARCH_LIBS(clock_gettime, [rt posix4]) |
959d14e1 | 1156 | AC_SEARCH_LIBS(nanosleep, [rt posix4]) |
610870b2 PC |
1157 | else |
1158 | AC_SEARCH_LIBS(clock_gettime, [posix4]) | |
959d14e1 | 1159 | AC_SEARCH_LIBS(nanosleep, [posix4]) |
610870b2 PC |
1160 | fi |
1161 | ||
1162 | case "$ac_cv_search_clock_gettime" in | |
1163 | -l*) GLIBCXX_LIBS=$ac_cv_search_clock_gettime | |
959d14e1 CF |
1164 | ;; |
1165 | esac | |
1166 | case "$ac_cv_search_nanosleep" in | |
1167 | -l*) GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_nanosleep" | |
1168 | ;; | |
1169 | esac | |
1170 | ||
1171 | AC_SEARCH_LIBS(sched_yield, [rt posix4]) | |
1172 | ||
1173 | case "$ac_cv_search_sched_yield" in | |
1174 | -lposix4*) | |
1175 | GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield" | |
1176 | AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1, | |
b329dd10 | 1177 | [ Defined if sched_yield is available. ]) |
959d14e1 CF |
1178 | ;; |
1179 | -lrt*) | |
1180 | if test x"$enable_libstdcxx_time" = x"rt"; then | |
b329dd10 BK |
1181 | GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield" |
1182 | AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1, | |
1183 | [ Defined if sched_yield is available. ]) | |
959d14e1 CF |
1184 | fi |
1185 | ;; | |
1186 | *) | |
1187 | AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1, | |
b329dd10 | 1188 | [ Defined if sched_yield is available. ]) |
959d14e1 | 1189 | ;; |
610870b2 PC |
1190 | esac |
1191 | ||
1192 | AC_CHECK_HEADERS(unistd.h, ac_has_unistd_h=yes, ac_has_unistd_h=no) | |
1193 | ||
1194 | if test x"$ac_has_unistd_h" = x"yes"; then | |
1195 | AC_MSG_CHECKING([for monotonic clock]) | |
1196 | AC_TRY_LINK( | |
b329dd10 BK |
1197 | [#include <unistd.h> |
1198 | #include <time.h> | |
1199 | ], | |
1200 | [#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK) | |
1201 | timespec tp; | |
1202 | #endif | |
1203 | clock_gettime(CLOCK_MONOTONIC, &tp); | |
1204 | ], [ac_has_clock_monotonic=yes], [ac_has_clock_monotonic=no]) | |
1205 | ||
1206 | AC_MSG_RESULT($ac_has_clock_monotonic) | |
1207 | ||
610870b2 PC |
1208 | AC_MSG_CHECKING([for realtime clock]) |
1209 | AC_TRY_LINK( | |
b329dd10 BK |
1210 | [#include <unistd.h> |
1211 | #include <time.h> | |
1212 | ], | |
1213 | [#if _POSIX_TIMERS > 0 | |
1214 | timespec tp; | |
1215 | #endif | |
1216 | clock_gettime(CLOCK_REALTIME, &tp); | |
1217 | ], [ac_has_clock_realtime=yes], [ac_has_clock_realtime=no]) | |
610870b2 PC |
1218 | |
1219 | AC_MSG_RESULT($ac_has_clock_realtime) | |
610870b2 | 1220 | |
959d14e1 CF |
1221 | AC_MSG_CHECKING([for nanosleep]) |
1222 | AC_TRY_LINK( | |
b329dd10 BK |
1223 | [#include <unistd.h> |
1224 | #include <time.h> | |
1225 | ], | |
1226 | [#if _POSIX_TIMERS > 0 | |
1227 | timespec tp; | |
1228 | #endif | |
1229 | nanosleep(&tp, 0); | |
1230 | ], [ac_has_nanosleep=yes], [ac_has_nanosleep=no]) | |
959d14e1 CF |
1231 | |
1232 | AC_MSG_RESULT($ac_has_nanosleep) | |
1233 | fi | |
610870b2 PC |
1234 | fi |
1235 | ||
15e38d0d CF |
1236 | if test x"$ac_has_clock_monotonic" = x"yes"; then |
1237 | AC_DEFINE(_GLIBCXX_USE_CLOCK_MONOTONIC, 1, | |
1238 | [ Defined if clock_gettime has monotonic clock support. ]) | |
1239 | fi | |
ec6fa56a | 1240 | |
15e38d0d CF |
1241 | if test x"$ac_has_clock_realtime" = x"yes"; then |
1242 | AC_DEFINE(_GLIBCXX_USE_CLOCK_REALTIME, 1, | |
1243 | [ Defined if clock_gettime has realtime clock support. ]) | |
1244 | fi | |
ec6fa56a | 1245 | |
959d14e1 CF |
1246 | if test x"$ac_has_nanosleep" = x"yes"; then |
1247 | AC_DEFINE(_GLIBCXX_USE_NANOSLEEP, 1, | |
1248 | [ Defined if nanosleep is available. ]) | |
1249 | fi | |
1250 | ||
ec6fa56a PB |
1251 | AC_SUBST(GLIBCXX_LIBS) |
1252 | ||
15e38d0d | 1253 | CXXFLAGS="$ac_save_CXXFLAGS" |
ec6fa56a | 1254 | LIBS="$ac_save_LIBS" |
15e38d0d CF |
1255 | AC_LANG_RESTORE |
1256 | ]) | |
1257 | ||
1258 | dnl | |
9ab48d6e JW |
1259 | dnl Check for gettimeofday, used in the implementation of 20.11.7 |
1260 | dnl [time.clock] in the C++11 standard. | |
15e38d0d CF |
1261 | dnl |
1262 | AC_DEFUN([GLIBCXX_CHECK_GETTIMEOFDAY], [ | |
b329dd10 | 1263 | |
610870b2 PC |
1264 | AC_MSG_CHECKING([for gettimeofday]) |
1265 | ||
15e38d0d CF |
1266 | AC_LANG_SAVE |
1267 | AC_LANG_CPLUSPLUS | |
1268 | ac_save_CXXFLAGS="$CXXFLAGS" | |
1269 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
b329dd10 | 1270 | |
15e38d0d CF |
1271 | ac_has_gettimeofday=no; |
1272 | AC_CHECK_HEADERS(sys/time.h, ac_has_sys_time_h=yes, ac_has_sys_time_h=no) | |
1273 | if test x"$ac_has_sys_time_h" = x"yes"; then | |
1274 | AC_MSG_CHECKING([for gettimeofday]) | |
610870b2 | 1275 | GCC_TRY_COMPILE_OR_LINK([#include <sys/time.h>], |
15e38d0d CF |
1276 | [timeval tv; gettimeofday(&tv, 0);], |
1277 | [ac_has_gettimeofday=yes], [ac_has_gettimeofday=no]) | |
b329dd10 | 1278 | |
15e38d0d CF |
1279 | AC_MSG_RESULT($ac_has_gettimeofday) |
1280 | fi | |
b329dd10 | 1281 | |
15e38d0d CF |
1282 | if test x"$ac_has_gettimeofday" = x"yes"; then |
1283 | AC_DEFINE(_GLIBCXX_USE_GETTIMEOFDAY, 1, | |
1284 | [ Defined if gettimeofday is available. ]) | |
1285 | fi | |
b329dd10 | 1286 | |
15e38d0d CF |
1287 | CXXFLAGS="$ac_save_CXXFLAGS" |
1288 | AC_LANG_RESTORE | |
1289 | ]) | |
1290 | ||
bd2bb1ea PC |
1291 | dnl |
1292 | dnl Check for ISO/IEC 9899:1999 "C99" support to ISO/IEC DTR 19768 "TR1" | |
1293 | dnl facilities in Chapter 8, "C compatibility". | |
1294 | dnl | |
1295 | AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [ | |
1296 | ||
1297 | AC_LANG_SAVE | |
1298 | AC_LANG_CPLUSPLUS | |
1299 | ||
18f310b7 PC |
1300 | # Use -std=c++98 because the default (-std=gnu++98) leaves __STRICT_ANSI__ |
1301 | # undefined and fake C99 facilities may be spuriously enabled. | |
1302 | ac_save_CXXFLAGS="$CXXFLAGS" | |
1303 | CXXFLAGS="$CXXFLAGS -std=c++98" | |
1304 | ||
bd2bb1ea PC |
1305 | # Check for the existence of <complex.h> complex math functions used |
1306 | # by tr1/complex. | |
1307 | AC_CHECK_HEADERS(complex.h, ac_has_complex_h=yes, ac_has_complex_h=no) | |
1308 | ac_c99_complex_tr1=no; | |
1309 | if test x"$ac_has_complex_h" = x"yes"; then | |
1310 | AC_MSG_CHECKING([for ISO C99 support to TR1 in <complex.h>]) | |
1311 | AC_TRY_COMPILE([#include <complex.h>], | |
b329dd10 BK |
1312 | [typedef __complex__ float float_type; float_type tmpf; |
1313 | cacosf(tmpf); | |
1314 | casinf(tmpf); | |
1315 | catanf(tmpf); | |
1316 | cacoshf(tmpf); | |
1317 | casinhf(tmpf); | |
1318 | catanhf(tmpf); | |
bd2bb1ea | 1319 | typedef __complex__ double double_type; double_type tmpd; |
b329dd10 BK |
1320 | cacos(tmpd); |
1321 | casin(tmpd); | |
1322 | catan(tmpd); | |
1323 | cacosh(tmpd); | |
1324 | casinh(tmpd); | |
1325 | catanh(tmpd); | |
bd2bb1ea | 1326 | typedef __complex__ long double ld_type; ld_type tmpld; |
b329dd10 BK |
1327 | cacosl(tmpld); |
1328 | casinl(tmpld); | |
1329 | catanl(tmpld); | |
1330 | cacoshl(tmpld); | |
1331 | casinhl(tmpld); | |
1332 | catanhl(tmpld); | |
bd2bb1ea PC |
1333 | ],[ac_c99_complex_tr1=yes], [ac_c99_complex_tr1=no]) |
1334 | fi | |
1335 | AC_MSG_RESULT($ac_c99_complex_tr1) | |
1336 | if test x"$ac_c99_complex_tr1" = x"yes"; then | |
1337 | AC_DEFINE(_GLIBCXX_USE_C99_COMPLEX_TR1, 1, | |
b329dd10 BK |
1338 | [Define if C99 functions in <complex.h> should be used in |
1339 | <tr1/complex>. Using compiler builtins for these functions | |
bd2bb1ea PC |
1340 | requires corresponding C99 library functions to be present.]) |
1341 | fi | |
1342 | ||
1343 | # Check for the existence of <ctype.h> functions. | |
1344 | AC_MSG_CHECKING([for ISO C99 support to TR1 in <ctype.h>]) | |
6d26724a | 1345 | AC_CACHE_VAL(glibcxx_cv_c99_ctype_tr1, [ |
bd2bb1ea | 1346 | AC_TRY_COMPILE([#include <ctype.h>], |
b329dd10 BK |
1347 | [int ch; |
1348 | int ret; | |
1349 | ret = isblank(ch); | |
0f24e8de PC |
1350 | ],[glibcxx_cv_c99_ctype_tr1=yes], |
1351 | [glibcxx_cv_c99_ctype_tr1=no]) | |
bd2bb1ea | 1352 | ]) |
6d26724a RW |
1353 | AC_MSG_RESULT($glibcxx_cv_c99_ctype_tr1) |
1354 | if test x"$glibcxx_cv_c99_ctype_tr1" = x"yes"; then | |
bd2bb1ea | 1355 | AC_DEFINE(_GLIBCXX_USE_C99_CTYPE_TR1, 1, |
b329dd10 | 1356 | [Define if C99 functions in <ctype.h> should be imported in |
bd2bb1ea PC |
1357 | <tr1/cctype> in namespace std::tr1.]) |
1358 | fi | |
1359 | ||
20921e53 PC |
1360 | # Check for the existence of <fenv.h> functions. |
1361 | AC_CHECK_HEADERS(fenv.h, ac_has_fenv_h=yes, ac_has_fenv_h=no) | |
1362 | ac_c99_fenv_tr1=no; | |
1363 | if test x"$ac_has_fenv_h" = x"yes"; then | |
1364 | AC_MSG_CHECKING([for ISO C99 support to TR1 in <fenv.h>]) | |
1365 | AC_TRY_COMPILE([#include <fenv.h>], | |
b329dd10 BK |
1366 | [int except, mode; |
1367 | fexcept_t* pflag; | |
1368 | fenv_t* penv; | |
1369 | int ret; | |
1370 | ret = feclearexcept(except); | |
1371 | ret = fegetexceptflag(pflag, except); | |
1372 | ret = feraiseexcept(except); | |
1373 | ret = fesetexceptflag(pflag, except); | |
1374 | ret = fetestexcept(except); | |
1375 | ret = fegetround(); | |
1376 | ret = fesetround(mode); | |
1377 | ret = fegetenv(penv); | |
1378 | ret = feholdexcept(penv); | |
1379 | ret = fesetenv(penv); | |
1380 | ret = feupdateenv(penv); | |
20921e53 PC |
1381 | ],[ac_c99_fenv_tr1=yes], [ac_c99_fenv_tr1=no]) |
1382 | fi | |
1383 | AC_MSG_RESULT($ac_c99_fenv_tr1) | |
1384 | if test x"$ac_c99_fenv_tr1" = x"yes"; then | |
1385 | AC_DEFINE(_GLIBCXX_USE_C99_FENV_TR1, 1, | |
b329dd10 | 1386 | [Define if C99 functions in <fenv.h> should be imported in |
20921e53 PC |
1387 | <tr1/cfenv> in namespace std::tr1.]) |
1388 | fi | |
1389 | ||
2a1d6346 PC |
1390 | # Check for the existence of <stdint.h> types. |
1391 | AC_MSG_CHECKING([for ISO C99 support to TR1 in <stdint.h>]) | |
6d26724a | 1392 | AC_CACHE_VAL(glibcxx_cv_c99_stdint_tr1, [ |
5289e808 | 1393 | AC_TRY_COMPILE([#define __STDC_LIMIT_MACROS |
b329dd10 BK |
1394 | #define __STDC_CONSTANT_MACROS |
1395 | #include <stdint.h>], | |
1396 | [typedef int8_t my_int8_t; | |
5289e808 PC |
1397 | my_int8_t i8 = INT8_MIN; |
1398 | i8 = INT8_MAX; | |
b329dd10 | 1399 | typedef int16_t my_int16_t; |
5289e808 PC |
1400 | my_int16_t i16 = INT16_MIN; |
1401 | i16 = INT16_MAX; | |
b329dd10 | 1402 | typedef int32_t my_int32_t; |
5289e808 PC |
1403 | my_int32_t i32 = INT32_MIN; |
1404 | i32 = INT32_MAX; | |
b329dd10 | 1405 | typedef int64_t my_int64_t; |
5289e808 PC |
1406 | my_int64_t i64 = INT64_MIN; |
1407 | i64 = INT64_MAX; | |
b329dd10 | 1408 | typedef int_fast8_t my_int_fast8_t; |
5289e808 PC |
1409 | my_int_fast8_t if8 = INT_FAST8_MIN; |
1410 | if8 = INT_FAST8_MAX; | |
b329dd10 | 1411 | typedef int_fast16_t my_int_fast16_t; |
5289e808 PC |
1412 | my_int_fast16_t if16 = INT_FAST16_MIN; |
1413 | if16 = INT_FAST16_MAX; | |
b329dd10 | 1414 | typedef int_fast32_t my_int_fast32_t; |
5289e808 PC |
1415 | my_int_fast32_t if32 = INT_FAST32_MIN; |
1416 | if32 = INT_FAST32_MAX; | |
b329dd10 | 1417 | typedef int_fast64_t my_int_fast64_t; |
5289e808 PC |
1418 | my_int_fast64_t if64 = INT_FAST64_MIN; |
1419 | if64 = INT_FAST64_MAX; | |
b329dd10 | 1420 | typedef int_least8_t my_int_least8_t; |
5289e808 PC |
1421 | my_int_least8_t il8 = INT_LEAST8_MIN; |
1422 | il8 = INT_LEAST8_MAX; | |
b329dd10 | 1423 | typedef int_least16_t my_int_least16_t; |
5289e808 PC |
1424 | my_int_least16_t il16 = INT_LEAST16_MIN; |
1425 | il16 = INT_LEAST16_MAX; | |
b329dd10 | 1426 | typedef int_least32_t my_int_least32_t; |
5289e808 PC |
1427 | my_int_least32_t il32 = INT_LEAST32_MIN; |
1428 | il32 = INT_LEAST32_MAX; | |
b329dd10 | 1429 | typedef int_least64_t my_int_least64_t; |
5289e808 PC |
1430 | my_int_least64_t il64 = INT_LEAST64_MIN; |
1431 | il64 = INT_LEAST64_MAX; | |
2a1d6346 | 1432 | typedef intmax_t my_intmax_t; |
5289e808 PC |
1433 | my_intmax_t im = INTMAX_MAX; |
1434 | im = INTMAX_MIN; | |
2a1d6346 | 1435 | typedef intptr_t my_intptr_t; |
5289e808 PC |
1436 | my_intptr_t ip = INTPTR_MAX; |
1437 | ip = INTPTR_MIN; | |
b329dd10 | 1438 | typedef uint8_t my_uint8_t; |
5289e808 PC |
1439 | my_uint8_t ui8 = UINT8_MAX; |
1440 | ui8 = UINT8_MAX; | |
b329dd10 | 1441 | typedef uint16_t my_uint16_t; |
5289e808 PC |
1442 | my_uint16_t ui16 = UINT16_MAX; |
1443 | ui16 = UINT16_MAX; | |
b329dd10 | 1444 | typedef uint32_t my_uint32_t; |
5289e808 PC |
1445 | my_uint32_t ui32 = UINT32_MAX; |
1446 | ui32 = UINT32_MAX; | |
b329dd10 | 1447 | typedef uint64_t my_uint64_t; |
5289e808 PC |
1448 | my_uint64_t ui64 = UINT64_MAX; |
1449 | ui64 = UINT64_MAX; | |
b329dd10 | 1450 | typedef uint_fast8_t my_uint_fast8_t; |
5289e808 PC |
1451 | my_uint_fast8_t uif8 = UINT_FAST8_MAX; |
1452 | uif8 = UINT_FAST8_MAX; | |
b329dd10 | 1453 | typedef uint_fast16_t my_uint_fast16_t; |
5289e808 PC |
1454 | my_uint_fast16_t uif16 = UINT_FAST16_MAX; |
1455 | uif16 = UINT_FAST16_MAX; | |
b329dd10 | 1456 | typedef uint_fast32_t my_uint_fast32_t; |
5289e808 PC |
1457 | my_uint_fast32_t uif32 = UINT_FAST32_MAX; |
1458 | uif32 = UINT_FAST32_MAX; | |
b329dd10 | 1459 | typedef uint_fast64_t my_uint_fast64_t; |
5289e808 PC |
1460 | my_uint_fast64_t uif64 = UINT_FAST64_MAX; |
1461 | uif64 = UINT_FAST64_MAX; | |
b329dd10 | 1462 | typedef uint_least8_t my_uint_least8_t; |
5289e808 PC |
1463 | my_uint_least8_t uil8 = UINT_LEAST8_MAX; |
1464 | uil8 = UINT_LEAST8_MAX; | |
b329dd10 | 1465 | typedef uint_least16_t my_uint_least16_t; |
5289e808 PC |
1466 | my_uint_least16_t uil16 = UINT_LEAST16_MAX; |
1467 | uil16 = UINT_LEAST16_MAX; | |
b329dd10 | 1468 | typedef uint_least32_t my_uint_least32_t; |
5289e808 PC |
1469 | my_uint_least32_t uil32 = UINT_LEAST32_MAX; |
1470 | uil32 = UINT_LEAST32_MAX; | |
b329dd10 | 1471 | typedef uint_least64_t my_uint_least64_t; |
5289e808 PC |
1472 | my_uint_least64_t uil64 = UINT_LEAST64_MAX; |
1473 | uil64 = UINT_LEAST64_MAX; | |
2a1d6346 | 1474 | typedef uintmax_t my_uintmax_t; |
5289e808 PC |
1475 | my_uintmax_t uim = UINTMAX_MAX; |
1476 | uim = UINTMAX_MAX; | |
2a1d6346 | 1477 | typedef uintptr_t my_uintptr_t; |
5289e808 PC |
1478 | my_uintptr_t uip = UINTPTR_MAX; |
1479 | uip = UINTPTR_MAX; | |
0f24e8de PC |
1480 | ],[glibcxx_cv_c99_stdint_tr1=yes], |
1481 | [glibcxx_cv_c99_stdint_tr1=no]) | |
2a1d6346 | 1482 | ]) |
6d26724a RW |
1483 | AC_MSG_RESULT($glibcxx_cv_c99_stdint_tr1) |
1484 | if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then | |
2a1d6346 | 1485 | AC_DEFINE(_GLIBCXX_USE_C99_STDINT_TR1, 1, |
b329dd10 | 1486 | [Define if C99 types in <stdint.h> should be imported in |
2a1d6346 PC |
1487 | <tr1/cstdint> in namespace std::tr1.]) |
1488 | fi | |
1489 | ||
4f0de5dd PC |
1490 | # Check for the existence of <math.h> functions. |
1491 | AC_MSG_CHECKING([for ISO C99 support to TR1 in <math.h>]) | |
6d26724a | 1492 | AC_CACHE_VAL(glibcxx_cv_c99_math_tr1, [ |
4f0de5dd | 1493 | AC_TRY_COMPILE([#include <math.h>], |
b329dd10 BK |
1494 | [typedef double_t my_double_t; |
1495 | typedef float_t my_float_t; | |
1496 | acosh(0.0); | |
1497 | acoshf(0.0f); | |
1498 | acoshl(0.0l); | |
1499 | asinh(0.0); | |
1500 | asinhf(0.0f); | |
1501 | asinhl(0.0l); | |
1502 | atanh(0.0); | |
1503 | atanhf(0.0f); | |
1504 | atanhl(0.0l); | |
1505 | cbrt(0.0); | |
1506 | cbrtf(0.0f); | |
1507 | cbrtl(0.0l); | |
1508 | copysign(0.0, 0.0); | |
1509 | copysignf(0.0f, 0.0f); | |
1510 | copysignl(0.0l, 0.0l); | |
1511 | erf(0.0); | |
1512 | erff(0.0f); | |
1513 | erfl(0.0l); | |
1514 | erfc(0.0); | |
1515 | erfcf(0.0f); | |
1516 | erfcl(0.0l); | |
1517 | exp2(0.0); | |
1518 | exp2f(0.0f); | |
1519 | exp2l(0.0l); | |
1520 | expm1(0.0); | |
1521 | expm1f(0.0f); | |
1522 | expm1l(0.0l); | |
1523 | fdim(0.0, 0.0); | |
1524 | fdimf(0.0f, 0.0f); | |
1525 | fdiml(0.0l, 0.0l); | |
1526 | fma(0.0, 0.0, 0.0); | |
1527 | fmaf(0.0f, 0.0f, 0.0f); | |
1528 | fmal(0.0l, 0.0l, 0.0l); | |
1529 | fmax(0.0, 0.0); | |
1530 | fmaxf(0.0f, 0.0f); | |
1531 | fmaxl(0.0l, 0.0l); | |
1532 | fmin(0.0, 0.0); | |
1533 | fminf(0.0f, 0.0f); | |
1534 | fminl(0.0l, 0.0l); | |
1535 | hypot(0.0, 0.0); | |
1536 | hypotf(0.0f, 0.0f); | |
1537 | hypotl(0.0l, 0.0l); | |
1538 | ilogb(0.0); | |
1539 | ilogbf(0.0f); | |
1540 | ilogbl(0.0l); | |
1541 | lgamma(0.0); | |
1542 | lgammaf(0.0f); | |
1543 | lgammal(0.0l); | |
1544 | llrint(0.0); | |
1545 | llrintf(0.0f); | |
1546 | llrintl(0.0l); | |
1547 | llround(0.0); | |
1548 | llroundf(0.0f); | |
1549 | llroundl(0.0l); | |
1550 | log1p(0.0); | |
1551 | log1pf(0.0f); | |
1552 | log1pl(0.0l); | |
1553 | log2(0.0); | |
1554 | log2f(0.0f); | |
1555 | log2l(0.0l); | |
1556 | logb(0.0); | |
1557 | logbf(0.0f); | |
1558 | logbl(0.0l); | |
1559 | lrint(0.0); | |
1560 | lrintf(0.0f); | |
1561 | lrintl(0.0l); | |
1562 | lround(0.0); | |
1563 | lroundf(0.0f); | |
1564 | lroundl(0.0l); | |
1565 | nan(0); | |
1566 | nanf(0); | |
1567 | nanl(0); | |
1568 | nearbyint(0.0); | |
1569 | nearbyintf(0.0f); | |
1570 | nearbyintl(0.0l); | |
1571 | nextafter(0.0, 0.0); | |
1572 | nextafterf(0.0f, 0.0f); | |
1573 | nextafterl(0.0l, 0.0l); | |
1574 | nexttoward(0.0, 0.0); | |
1575 | nexttowardf(0.0f, 0.0f); | |
1576 | nexttowardl(0.0l, 0.0l); | |
1577 | remainder(0.0, 0.0); | |
1578 | remainderf(0.0f, 0.0f); | |
1579 | remainderl(0.0l, 0.0l); | |
1580 | remquo(0.0, 0.0, 0); | |
1581 | remquof(0.0f, 0.0f, 0); | |
1582 | remquol(0.0l, 0.0l, 0); | |
1583 | rint(0.0); | |
1584 | rintf(0.0f); | |
1585 | rintl(0.0l); | |
1586 | round(0.0); | |
1587 | roundf(0.0f); | |
1588 | roundl(0.0l); | |
1589 | scalbln(0.0, 0l); | |
1590 | scalblnf(0.0f, 0l); | |
1591 | scalblnl(0.0l, 0l); | |
1592 | scalbn(0.0, 0); | |
1593 | scalbnf(0.0f, 0); | |
1594 | scalbnl(0.0l, 0); | |
1595 | tgamma(0.0); | |
1596 | tgammaf(0.0f); | |
1597 | tgammal(0.0l); | |
1598 | trunc(0.0); | |
1599 | truncf(0.0f); | |
1600 | truncl(0.0l); | |
6d26724a | 1601 | ],[glibcxx_cv_c99_math_tr1=yes], [glibcxx_cv_c99_math_tr1=no]) |
4f0de5dd | 1602 | ]) |
6d26724a RW |
1603 | AC_MSG_RESULT($glibcxx_cv_c99_math_tr1) |
1604 | if test x"$glibcxx_cv_c99_math_tr1" = x"yes"; then | |
4f0de5dd | 1605 | AC_DEFINE(_GLIBCXX_USE_C99_MATH_TR1, 1, |
b329dd10 BK |
1606 | [Define if C99 functions or macros in <math.h> should be imported |
1607 | in <tr1/cmath> in namespace std::tr1.]) | |
4f0de5dd PC |
1608 | fi |
1609 | ||
03bf3bc1 | 1610 | # Check for the existence of <inttypes.h> functions (NB: doesn't make |
a834e097 | 1611 | # sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1). |
03bf3bc1 | 1612 | ac_c99_inttypes_tr1=no; |
6d26724a | 1613 | if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then |
03bf3bc1 PC |
1614 | AC_MSG_CHECKING([for ISO C99 support to TR1 in <inttypes.h>]) |
1615 | AC_TRY_COMPILE([#include <inttypes.h>], | |
b329dd10 BK |
1616 | [intmax_t i, numer, denom, base; |
1617 | const char* s; | |
1618 | char** endptr; | |
1619 | intmax_t ret = imaxabs(i); | |
1620 | imaxdiv_t dret = imaxdiv(numer, denom); | |
1621 | ret = strtoimax(s, endptr, base); | |
1622 | uintmax_t uret = strtoumax(s, endptr, base); | |
1623 | ],[ac_c99_inttypes_tr1=yes], [ac_c99_inttypes_tr1=no]) | |
03bf3bc1 | 1624 | fi |
52a64bd3 PC |
1625 | AC_MSG_RESULT($ac_c99_inttypes_tr1) |
1626 | if test x"$ac_c99_inttypes_tr1" = x"yes"; then | |
1627 | AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_TR1, 1, | |
b329dd10 BK |
1628 | [Define if C99 functions in <inttypes.h> should be imported in |
1629 | <tr1/cinttypes> in namespace std::tr1.]) | |
52a64bd3 PC |
1630 | fi |
1631 | ||
a834e097 PC |
1632 | # Check for the existence of whcar_t <inttypes.h> functions (NB: doesn't |
1633 | # make sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1). | |
1634 | ac_c99_inttypes_wchar_t_tr1=no; | |
1635 | if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then | |
1636 | AC_MSG_CHECKING([for wchar_t ISO C99 support to TR1 in <inttypes.h>]) | |
1637 | AC_TRY_COMPILE([#include <inttypes.h>], | |
b329dd10 | 1638 | [intmax_t base; |
a834e097 | 1639 | const wchar_t* s; |
b329dd10 BK |
1640 | wchar_t** endptr; |
1641 | intmax_t ret = wcstoimax(s, endptr, base); | |
1642 | uintmax_t uret = wcstoumax(s, endptr, base); | |
1643 | ],[ac_c99_inttypes_wchar_t_tr1=yes], | |
a834e097 PC |
1644 | [ac_c99_inttypes_wchar_t_tr1=no]) |
1645 | fi | |
1646 | AC_MSG_RESULT($ac_c99_inttypes_wchar_t_tr1) | |
1647 | if test x"$ac_c99_inttypes_wchar_t_tr1" = x"yes"; then | |
1648 | AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1, 1, | |
b329dd10 | 1649 | [Define if wchar_t C99 functions in <inttypes.h> should be |
a834e097 PC |
1650 | imported in <tr1/cinttypes> in namespace std::tr1.]) |
1651 | fi | |
1652 | ||
b329dd10 | 1653 | # Check for the existence of the <stdbool.h> header. |
1e41a98c PC |
1654 | AC_CHECK_HEADERS(stdbool.h) |
1655 | ||
e0f0ee74 JW |
1656 | # Check for the existence of the <stdalign.h> header. |
1657 | AC_CHECK_HEADERS(stdalign.h) | |
1658 | ||
18f310b7 | 1659 | CXXFLAGS="$ac_save_CXXFLAGS" |
bd2bb1ea PC |
1660 | AC_LANG_RESTORE |
1661 | ]) | |
1662 | ||
d8bc9819 | 1663 | dnl |
9ce0a22e | 1664 | dnl Check whether "/dev/random" and "/dev/urandom" are available for the |
d8bc9819 PC |
1665 | dnl random_device of "TR1" (Chapter 5.1, "Random number generation"). |
1666 | dnl | |
1667 | AC_DEFUN([GLIBCXX_CHECK_RANDOM_TR1], [ | |
1668 | ||
9ce0a22e | 1669 | AC_MSG_CHECKING([for "/dev/random" and "/dev/urandom" for TR1 random_device]) |
6d26724a | 1670 | AC_CACHE_VAL(glibcxx_cv_random_tr1, [ |
9ce0a22e PC |
1671 | if test -r /dev/random && test -r /dev/urandom; then |
1672 | glibcxx_cv_random_tr1=yes; | |
1673 | else | |
1674 | glibcxx_cv_random_tr1=no; | |
1675 | fi | |
d8bc9819 | 1676 | ]) |
6d26724a | 1677 | AC_MSG_RESULT($glibcxx_cv_random_tr1) |
9ce0a22e | 1678 | |
6d26724a | 1679 | if test x"$glibcxx_cv_random_tr1" = x"yes"; then |
d8bc9819 | 1680 | AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1, 1, |
b329dd10 | 1681 | [Define if /dev/random and /dev/urandom are available for |
d8bc9819 PC |
1682 | the random_device of TR1 (Chapter 5.1).]) |
1683 | fi | |
1684 | ||
1685 | ]) | |
bd2bb1ea | 1686 | |
1814157e | 1687 | dnl |
ddc9c40d PC |
1688 | dnl Compute the EOF, SEEK_CUR, and SEEK_END integer constants. |
1689 | dnl | |
1690 | AC_DEFUN([GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS], [ | |
1691 | ||
9b04fa91 | 1692 | AC_CACHE_CHECK([for the value of EOF], glibcxx_cv_stdio_eof, [ |
ddc9c40d | 1693 | AC_COMPUTE_INT([glibcxx_cv_stdio_eof], [[EOF]], |
b329dd10 BK |
1694 | [#include <stdio.h>], |
1695 | [AC_MSG_ERROR([computing EOF failed])]) | |
ddc9c40d | 1696 | ]) |
ddc9c40d | 1697 | AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_EOF, $glibcxx_cv_stdio_eof, |
b329dd10 | 1698 | [Define to the value of the EOF integer constant.]) |
ddc9c40d | 1699 | |
9b04fa91 | 1700 | AC_CACHE_CHECK([for the value of SEEK_CUR], glibcxx_cv_stdio_seek_cur, [ |
ddc9c40d | 1701 | AC_COMPUTE_INT([glibcxx_cv_stdio_seek_cur], [[SEEK_CUR]], |
b329dd10 BK |
1702 | [#include <stdio.h>], |
1703 | [AC_MSG_ERROR([computing SEEK_CUR failed])]) | |
ddc9c40d | 1704 | ]) |
ddc9c40d | 1705 | AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_SEEK_CUR, $glibcxx_cv_stdio_seek_cur, |
b329dd10 | 1706 | [Define to the value of the SEEK_CUR integer constant.]) |
ddc9c40d | 1707 | |
9b04fa91 | 1708 | AC_CACHE_CHECK([for the value of SEEK_END], glibcxx_cv_stdio_seek_end, [ |
ddc9c40d | 1709 | AC_COMPUTE_INT([glibcxx_cv_stdio_seek_end], [[SEEK_END]], |
b329dd10 BK |
1710 | [#include <stdio.h>], |
1711 | [AC_MSG_ERROR([computing SEEK_END failed])]) | |
ddc9c40d | 1712 | ]) |
ddc9c40d | 1713 | AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_SEEK_END, $glibcxx_cv_stdio_seek_end, |
b329dd10 | 1714 | [Define to the value of the SEEK_END integer constant.]) |
1814157e PC |
1715 | ]) |
1716 | ||
1b6ce36f BK |
1717 | dnl |
1718 | dnl Check whether required C++ overloads are present in <stdio.h>. | |
1719 | dnl | |
1720 | AC_DEFUN([GLIBCXX_CHECK_STDIO_PROTO], [ | |
1721 | ||
1722 | AC_LANG_SAVE | |
1723 | AC_LANG_CPLUSPLUS | |
1724 | ||
1725 | AC_MSG_CHECKING([for gets declaration]) | |
1726 | AC_CACHE_VAL(glibcxx_cv_gets, [ | |
1727 | AC_COMPILE_IFELSE([AC_LANG_SOURCE( | |
1728 | [#include <stdio.h> | |
1729 | namespace test | |
1730 | { | |
1731 | using ::gets; | |
1732 | } | |
1733 | ])], | |
1734 | [glibcxx_cv_gets=yes], | |
1735 | [glibcxx_cv_gets=no] | |
1736 | )]) | |
1737 | ||
1738 | if test $glibcxx_cv_gets = yes; then | |
1739 | AC_DEFINE(HAVE_GETS, 1, [Define if gets is available in <stdio.h>.]) | |
1740 | fi | |
1741 | AC_MSG_RESULT($glibcxx_cv_gets) | |
1742 | ||
1743 | AC_LANG_RESTORE | |
1744 | ]) | |
1745 | ||
0646d8a3 BK |
1746 | dnl |
1747 | dnl Check whether macros, etc are present for <system_error> | |
1748 | dnl | |
1749 | AC_DEFUN([GLIBCXX_CHECK_SYSTEM_ERROR], [ | |
1750 | ||
6d26724a RW |
1751 | m4_pushdef([n_syserr], [1])dnl |
1752 | m4_foreach([syserr], [EOWNERDEAD, ENOTRECOVERABLE, ENOLINK, EPROTO, ENODATA, | |
70593ad2 | 1753 | ENOSR, ENOSTR, ETIME, EBADMSG, ECANCELED, |
edf2239b KT |
1754 | EOVERFLOW, ENOTSUP, EIDRM, ETXTBSY, |
1755 | ECHILD, ENOSPC, EPERM, | |
1756 | ETIMEDOUT, EWOULDBLOCK], | |
6d26724a RW |
1757 | [m4_pushdef([SYSERR], m4_toupper(syserr))dnl |
1758 | AC_MSG_CHECKING([for syserr]) | |
1759 | AC_CACHE_VAL([glibcxx_cv_system_error[]n_syserr], [ | |
1760 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <errno.h>]], | |
1761 | [int i = syserr;])], | |
1762 | [glibcxx_cv_system_error[]n_syserr=yes], | |
1763 | [glibcxx_cv_system_error[]n_syserr=no]) | |
1764 | ]) | |
1765 | AC_MSG_RESULT([$glibcxx_cv_system_error[]n_syserr]) | |
1766 | if test x"$glibcxx_cv_system_error[]n_syserr" = x"yes"; then | |
1767 | AC_DEFINE([HAVE_]SYSERR, 1, [Define if ]syserr[ exists.]) | |
1768 | fi | |
1769 | m4_define([n_syserr], m4_incr(n_syserr))dnl | |
1770 | m4_popdef([SYSERR])dnl | |
1771 | ]) | |
1772 | m4_popdef([n_syserr])dnl | |
0646d8a3 BK |
1773 | ]) |
1774 | ||
0214010c | 1775 | dnl |
ff66d28f PE |
1776 | dnl Check for what type of C headers to use. |
1777 | dnl | |
1778 | dnl --enable-cheaders= [does stuff]. | |
1779 | dnl --disable-cheaders [does not do anything, really]. | |
1780 | dnl + Usage: GLIBCXX_ENABLE_CHEADERS[(DEFAULT)] | |
af13a7a6 | 1781 | dnl Where DEFAULT is either 'c' or 'c_std' or 'c_global'. |
ff66d28f | 1782 | dnl |
f214923c | 1783 | AC_DEFUN([GLIBCXX_ENABLE_CHEADERS], [ |
b453ace3 | 1784 | GLIBCXX_ENABLE(cheaders,$1,[[[=KIND]]], |
af13a7a6 | 1785 | [construct "C" headers for g++], [permit c|c_std|c_global]) |
ff66d28f PE |
1786 | AC_MSG_NOTICE("C" header strategy set to $enable_cheaders) |
1787 | ||
1788 | C_INCLUDE_DIR='${glibcxx_srcdir}/include/'$enable_cheaders | |
1789 | ||
af13a7a6 BK |
1790 | # Allow overrides to configure.host here. |
1791 | if test $enable_cheaders = c_global; then | |
1792 | c_compatibility=yes | |
1793 | fi | |
1794 | ||
ff66d28f | 1795 | AC_SUBST(C_INCLUDE_DIR) |
92eabea2 PE |
1796 | GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C, test $enable_cheaders = c) |
1797 | GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C_STD, test $enable_cheaders = c_std) | |
af13a7a6 | 1798 | GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C_GLOBAL, test $enable_cheaders = c_global) |
92eabea2 | 1799 | GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_COMPATIBILITY, test $c_compatibility = yes) |
ff66d28f PE |
1800 | ]) |
1801 | ||
1802 | ||
0214010c | 1803 | dnl |
ff66d28f PE |
1804 | dnl Check for which locale library to use. The choice is mapped to |
1805 | dnl a subdirectory of config/locale. | |
37bc6ca2 | 1806 | dnl |
ff66d28f | 1807 | dnl Default is generic. |
0214010c | 1808 | dnl |
f214923c | 1809 | AC_DEFUN([GLIBCXX_ENABLE_CLOCALE], [ |
b453ace3 | 1810 | GLIBCXX_ENABLE(clocale,auto,[[[=MODEL]]], |
ff66d28f | 1811 | [use MODEL for target locale package], |
aeb4926a | 1812 | [permit generic|gnu|ieee_1003.1-2001|newlib|yes|no|auto]) |
0258dc3a BK |
1813 | |
1814 | # Deal with gettext issues. Default to not using it (=no) until we detect | |
1815 | # support for it later. Let the user turn it off via --e/d, but let that | |
1816 | # default to on for easier handling. | |
1817 | USE_NLS=no | |
1818 | AC_ARG_ENABLE(nls, | |
1819 | AC_HELP_STRING([--enable-nls],[use Native Language Support (default)]), | |
1820 | [], | |
1821 | [enable_nls=yes]) | |
b329dd10 | 1822 | |
aeb4926a | 1823 | # Either a known package, or "auto" |
ff66d28f PE |
1824 | if test $enable_clocale = no || test $enable_clocale = yes; then |
1825 | enable_clocale=auto | |
1826 | fi | |
0214010c BK |
1827 | enable_clocale_flag=$enable_clocale |
1828 | ||
0258dc3a | 1829 | # Probe for locale model to use if none specified. |
ff66d28f PE |
1830 | # Default to "generic". |
1831 | if test $enable_clocale_flag = auto; then | |
7d3998a4 PE |
1832 | case ${target_os} in |
1833 | linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu) | |
b329dd10 BK |
1834 | enable_clocale_flag=gnu |
1835 | ;; | |
a7f7b334 | 1836 | darwin* | freebsd*) |
b329dd10 | 1837 | enable_clocale_flag=darwin |
f9686024 | 1838 | ;; |
56deb74c | 1839 | *) |
aeb4926a YZ |
1840 | if test x"$with_newlib" = x"yes"; then |
1841 | enable_clocale_flag=newlib | |
1842 | else | |
1843 | enable_clocale_flag=generic | |
1844 | fi | |
b329dd10 | 1845 | ;; |
56deb74c BK |
1846 | esac |
1847 | fi | |
1848 | ||
0258dc3a BK |
1849 | # Sanity check model, and test for special functionality. |
1850 | if test $enable_clocale_flag = gnu; then | |
1851 | AC_EGREP_CPP([_GLIBCXX_ok], [ | |
1852 | #include <features.h> | |
22b36782 | 1853 | #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(__UCLIBC__) |
0258dc3a BK |
1854 | _GLIBCXX_ok |
1855 | #endif | |
1856 | ], enable_clocale_flag=gnu, enable_clocale_flag=generic) | |
1857 | ||
0258dc3a | 1858 | # Set it to scream when it hurts. |
b329dd10 | 1859 | ac_save_CFLAGS="$CFLAGS" |
0258dc3a BK |
1860 | CFLAGS="-Wimplicit-function-declaration -Werror" |
1861 | ||
1862 | # Use strxfrm_l if available. | |
1863 | AC_TRY_COMPILE([#define _GNU_SOURCE 1 | |
1864 | #include <string.h> | |
1865 | #include <locale.h>], | |
b329dd10 BK |
1866 | [char s[128]; __locale_t loc; strxfrm_l(s, "C", 5, loc);], |
1867 | AC_DEFINE(HAVE_STRXFRM_L, 1, | |
1868 | [Define if strxfrm_l is available in <string.h>.]),) | |
1869 | ||
0258dc3a BK |
1870 | # Use strerror_l if available. |
1871 | AC_TRY_COMPILE([#define _GNU_SOURCE 1 | |
1872 | #include <string.h> | |
1873 | #include <locale.h>], | |
b329dd10 BK |
1874 | [__locale_t loc; strerror_l(5, loc);], |
1875 | AC_DEFINE(HAVE_STRERROR_L, 1, | |
1876 | [Define if strerror_l is available in <string.h>.]),) | |
0258dc3a BK |
1877 | |
1878 | CFLAGS="$ac_save_CFLAGS" | |
1879 | fi | |
1880 | ||
1881 | # Perhaps use strerror_r if available, and strerror_l isn't. | |
b329dd10 | 1882 | ac_save_CFLAGS="$CFLAGS" |
0258dc3a BK |
1883 | CFLAGS="-Wimplicit-function-declaration -Werror" |
1884 | AC_TRY_COMPILE([#define _GNU_SOURCE 1 | |
1885 | #include <string.h> | |
1886 | #include <locale.h>], | |
b329dd10 BK |
1887 | [char s[128]; strerror_r(5, s, 128);], |
1888 | AC_DEFINE(HAVE_STRERROR_R, 1, | |
1889 | [Define if strerror_r is available in <string.h>.]),) | |
0258dc3a | 1890 | CFLAGS="$ac_save_CFLAGS" |
501e321e | 1891 | |
ff66d28f | 1892 | # Set configure bits for specified locale package |
0258dc3a | 1893 | AC_MSG_CHECKING([for C locale to use]) |
ff66d28f PE |
1894 | case ${enable_clocale_flag} in |
1895 | generic) | |
33590f13 BK |
1896 | AC_MSG_RESULT(generic) |
1897 | ||
1fa4bed7 BK |
1898 | CLOCALE_H=config/locale/generic/c_locale.h |
1899 | CLOCALE_CC=config/locale/generic/c_locale.cc | |
38cca750 | 1900 | CCODECVT_CC=config/locale/generic/codecvt_members.cc |
1fa4bed7 BK |
1901 | CCOLLATE_CC=config/locale/generic/collate_members.cc |
1902 | CCTYPE_CC=config/locale/generic/ctype_members.cc | |
1903 | CMESSAGES_H=config/locale/generic/messages_members.h | |
1904 | CMESSAGES_CC=config/locale/generic/messages_members.cc | |
1905 | CMONEY_CC=config/locale/generic/monetary_members.cc | |
1906 | CNUMERIC_CC=config/locale/generic/numeric_members.cc | |
1c26d8fd | 1907 | CTIME_H=config/locale/generic/time_members.h |
1fa4bed7 | 1908 | CTIME_CC=config/locale/generic/time_members.cc |
89671b70 | 1909 | CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h |
33590f13 | 1910 | ;; |
f9686024 | 1911 | darwin) |
a7f7b334 | 1912 | AC_MSG_RESULT(darwin or freebsd) |
f9686024 GK |
1913 | |
1914 | CLOCALE_H=config/locale/generic/c_locale.h | |
1915 | CLOCALE_CC=config/locale/generic/c_locale.cc | |
f9686024 GK |
1916 | CCODECVT_CC=config/locale/generic/codecvt_members.cc |
1917 | CCOLLATE_CC=config/locale/generic/collate_members.cc | |
1918 | CCTYPE_CC=config/locale/darwin/ctype_members.cc | |
1919 | CMESSAGES_H=config/locale/generic/messages_members.h | |
1920 | CMESSAGES_CC=config/locale/generic/messages_members.cc | |
1921 | CMONEY_CC=config/locale/generic/monetary_members.cc | |
1922 | CNUMERIC_CC=config/locale/generic/numeric_members.cc | |
1923 | CTIME_H=config/locale/generic/time_members.h | |
1924 | CTIME_CC=config/locale/generic/time_members.cc | |
1925 | CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h | |
1926 | ;; | |
b329dd10 | 1927 | |
ff66d28f | 1928 | gnu) |
0214010c | 1929 | AC_MSG_RESULT(gnu) |
33590f13 BK |
1930 | |
1931 | # Declare intention to use gettext, and add support for specific | |
1932 | # languages. | |
248a9163 | 1933 | # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT |
33590f13 | 1934 | ALL_LINGUAS="de fr" |
501e321e | 1935 | |
248a9163 | 1936 | # Don't call AM-GNU-GETTEXT here. Instead, assume glibc. |
501e321e BK |
1937 | AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no) |
1938 | if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then | |
b329dd10 | 1939 | USE_NLS=yes |
501e321e | 1940 | fi |
33590f13 BK |
1941 | # Export the build objects. |
1942 | for ling in $ALL_LINGUAS; do \ | |
b329dd10 BK |
1943 | glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \ |
1944 | glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \ | |
33590f13 | 1945 | done |
3d7c150e BK |
1946 | AC_SUBST(glibcxx_MOFILES) |
1947 | AC_SUBST(glibcxx_POFILES) | |
33590f13 | 1948 | |
1fa4bed7 BK |
1949 | CLOCALE_H=config/locale/gnu/c_locale.h |
1950 | CLOCALE_CC=config/locale/gnu/c_locale.cc | |
38cca750 | 1951 | CCODECVT_CC=config/locale/gnu/codecvt_members.cc |
1fa4bed7 BK |
1952 | CCOLLATE_CC=config/locale/gnu/collate_members.cc |
1953 | CCTYPE_CC=config/locale/gnu/ctype_members.cc | |
1954 | CMESSAGES_H=config/locale/gnu/messages_members.h | |
1955 | CMESSAGES_CC=config/locale/gnu/messages_members.cc | |
1956 | CMONEY_CC=config/locale/gnu/monetary_members.cc | |
1957 | CNUMERIC_CC=config/locale/gnu/numeric_members.cc | |
1c26d8fd | 1958 | CTIME_H=config/locale/gnu/time_members.h |
1fa4bed7 | 1959 | CTIME_CC=config/locale/gnu/time_members.cc |
89671b70 | 1960 | CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h |
0214010c | 1961 | ;; |
ff66d28f | 1962 | ieee_1003.1-2001) |
7f78b6ca | 1963 | AC_MSG_RESULT(IEEE 1003.1) |
33590f13 | 1964 | |
1fa4bed7 BK |
1965 | CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h |
1966 | CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc | |
38cca750 | 1967 | CCODECVT_CC=config/locale/generic/codecvt_members.cc |
1fa4bed7 BK |
1968 | CCOLLATE_CC=config/locale/generic/collate_members.cc |
1969 | CCTYPE_CC=config/locale/generic/ctype_members.cc | |
1970 | CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h | |
1971 | CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc | |
1972 | CMONEY_CC=config/locale/generic/monetary_members.cc | |
1973 | CNUMERIC_CC=config/locale/generic/numeric_members.cc | |
1c26d8fd | 1974 | CTIME_H=config/locale/generic/time_members.h |
1fa4bed7 | 1975 | CTIME_CC=config/locale/generic/time_members.cc |
89671b70 | 1976 | CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h |
0214010c | 1977 | ;; |
aeb4926a YZ |
1978 | newlib) |
1979 | AC_MSG_RESULT(newlib) | |
1980 | ||
1981 | CLOCALE_H=config/locale/generic/c_locale.h | |
1982 | CLOCALE_CC=config/locale/generic/c_locale.cc | |
1983 | CCODECVT_CC=config/locale/generic/codecvt_members.cc | |
1984 | CCOLLATE_CC=config/locale/generic/collate_members.cc | |
1985 | CCTYPE_CC=config/locale/newlib/ctype_members.cc | |
1986 | CMESSAGES_H=config/locale/generic/messages_members.h | |
1987 | CMESSAGES_CC=config/locale/generic/messages_members.cc | |
1988 | CMONEY_CC=config/locale/generic/monetary_members.cc | |
1989 | CNUMERIC_CC=config/locale/generic/numeric_members.cc | |
1990 | CTIME_H=config/locale/generic/time_members.h | |
1991 | CTIME_CC=config/locale/generic/time_members.cc | |
1992 | CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h | |
1993 | ;; | |
0214010c BK |
1994 | esac |
1995 | ||
33590f13 BK |
1996 | # This is where the testsuite looks for locale catalogs, using the |
1997 | # -DLOCALEDIR define during testsuite compilation. | |
3d7c150e BK |
1998 | glibcxx_localedir=${glibcxx_builddir}/po/share/locale |
1999 | AC_SUBST(glibcxx_localedir) | |
33590f13 | 2000 | |
7f78b6ca PE |
2001 | # A standalone libintl (e.g., GNU libintl) may be in use. |
2002 | if test $USE_NLS = yes; then | |
c67528fe PE |
2003 | AC_CHECK_HEADERS([libintl.h], [], USE_NLS=no) |
2004 | AC_SEARCH_LIBS(gettext, intl, [], USE_NLS=no) | |
2005 | fi | |
2006 | if test $USE_NLS = yes; then | |
b329dd10 BK |
2007 | AC_DEFINE(_GLIBCXX_USE_NLS, 1, |
2008 | [Define if NLS translations are to be used.]) | |
7f78b6ca PE |
2009 | fi |
2010 | ||
4e10943d | 2011 | AC_SUBST(USE_NLS) |
4a9d5109 | 2012 | AC_SUBST(CLOCALE_H) |
33590f13 | 2013 | AC_SUBST(CMESSAGES_H) |
6aa43d99 BK |
2014 | AC_SUBST(CCODECVT_CC) |
2015 | AC_SUBST(CCOLLATE_CC) | |
2016 | AC_SUBST(CCTYPE_CC) | |
2017 | AC_SUBST(CMESSAGES_CC) | |
2018 | AC_SUBST(CMONEY_CC) | |
2019 | AC_SUBST(CNUMERIC_CC) | |
1c26d8fd | 2020 | AC_SUBST(CTIME_H) |
6aa43d99 BK |
2021 | AC_SUBST(CTIME_CC) |
2022 | AC_SUBST(CLOCALE_CC) | |
2023 | AC_SUBST(CLOCALE_INTERNAL_H) | |
0214010c BK |
2024 | ]) |
2025 | ||
2026 | ||
8b0d6051 BK |
2027 | dnl |
2028 | dnl Check for which std::allocator base class to use. The choice is | |
2029 | dnl mapped from a subdirectory of include/ext. | |
2030 | dnl | |
2031 | dnl Default is new. | |
2032 | dnl | |
2033 | AC_DEFUN([GLIBCXX_ENABLE_ALLOCATOR], [ | |
347669a0 | 2034 | AC_MSG_CHECKING([for std::allocator base class]) |
b453ace3 | 2035 | GLIBCXX_ENABLE(libstdcxx-allocator,auto,[[[=KIND]]], |
8b0d6051 | 2036 | [use KIND for target std::allocator base], |
29d4adf4 | 2037 | [permit new|malloc|mt|bitmap|pool|yes|no|auto]) |
7d3998a4 | 2038 | |
8b0d6051 BK |
2039 | # If they didn't use this option switch, or if they specified --enable |
2040 | # with no specific model, we'll have to look for one. If they | |
2041 | # specified --disable (???), do likewise. | |
7d3998a4 PE |
2042 | if test $enable_libstdcxx_allocator = no || |
2043 | test $enable_libstdcxx_allocator = yes; | |
2044 | then | |
8b0d6051 BK |
2045 | enable_libstdcxx_allocator=auto |
2046 | fi | |
2047 | ||
780028b6 BK |
2048 | # Either a known package, or "auto". Auto implies the default choice |
2049 | # for a particular platform. | |
8b0d6051 BK |
2050 | enable_libstdcxx_allocator_flag=$enable_libstdcxx_allocator |
2051 | ||
2052 | # Probe for host-specific support if no specific model is specified. | |
2053 | # Default to "new". | |
2054 | if test $enable_libstdcxx_allocator_flag = auto; then | |
2055 | case ${target_os} in | |
780028b6 | 2056 | linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu) |
b329dd10 BK |
2057 | enable_libstdcxx_allocator_flag=new |
2058 | ;; | |
8b0d6051 | 2059 | *) |
b329dd10 BK |
2060 | enable_libstdcxx_allocator_flag=new |
2061 | ;; | |
8b0d6051 BK |
2062 | esac |
2063 | fi | |
2064 | AC_MSG_RESULT($enable_libstdcxx_allocator_flag) | |
b329dd10 | 2065 | |
8b0d6051 BK |
2066 | |
2067 | # Set configure bits for specified locale package | |
2068 | case ${enable_libstdcxx_allocator_flag} in | |
2069 | bitmap) | |
2070 | ALLOCATOR_H=config/allocator/bitmap_allocator_base.h | |
2071 | ALLOCATOR_NAME=__gnu_cxx::bitmap_allocator | |
2072 | ;; | |
2073 | malloc) | |
2074 | ALLOCATOR_H=config/allocator/malloc_allocator_base.h | |
2075 | ALLOCATOR_NAME=__gnu_cxx::malloc_allocator | |
2076 | ;; | |
2077 | mt) | |
2078 | ALLOCATOR_H=config/allocator/mt_allocator_base.h | |
2079 | ALLOCATOR_NAME=__gnu_cxx::__mt_alloc | |
2080 | ;; | |
2081 | new) | |
2082 | ALLOCATOR_H=config/allocator/new_allocator_base.h | |
2083 | ALLOCATOR_NAME=__gnu_cxx::new_allocator | |
2084 | ;; | |
29d4adf4 PC |
2085 | pool) |
2086 | ALLOCATOR_H=config/allocator/pool_allocator_base.h | |
2087 | ALLOCATOR_NAME=__gnu_cxx::__pool_alloc | |
b329dd10 | 2088 | ;; |
8b0d6051 BK |
2089 | esac |
2090 | ||
2091 | AC_SUBST(ALLOCATOR_H) | |
2092 | AC_SUBST(ALLOCATOR_NAME) | |
2093 | ]) | |
2094 | ||
2095 | ||
b2dad0e3 | 2096 | dnl |
ff66d28f PE |
2097 | dnl Check for whether the Boost-derived checks should be turned on. |
2098 | dnl | |
2099 | dnl --enable-concept-checks turns them on. | |
2100 | dnl --disable-concept-checks leaves them off. | |
2101 | dnl + Usage: GLIBCXX_ENABLE_CONCEPT_CHECKS[(DEFAULT)] | |
2102 | dnl Where DEFAULT is either `yes' or `no'. | |
2103 | dnl | |
f214923c | 2104 | AC_DEFUN([GLIBCXX_ENABLE_CONCEPT_CHECKS], [ |
ff66d28f PE |
2105 | GLIBCXX_ENABLE(concept-checks,$1,,[use Boost-derived template checks]) |
2106 | if test $enable_concept_checks = yes; then | |
4651e622 | 2107 | AC_DEFINE(_GLIBCXX_CONCEPT_CHECKS, 1, |
b329dd10 | 2108 | [Define to use concept checking code from the boost libraries.]) |
ff66d28f PE |
2109 | fi |
2110 | ]) | |
2111 | ||
ed4f96af BK |
2112 | dnl |
2113 | dnl Use extern templates. | |
2114 | dnl | |
2115 | dnl --enable-extern-template defines _GLIBCXX_EXTERN_TEMPLATE to 1 | |
2116 | dnl --disable-extern-template defines _GLIBCXX_EXTERN_TEMPLATE to 0 | |
2117 | ||
2118 | dnl + Usage: GLIBCXX_ENABLE_TEMPLATE[(DEFAULT)] | |
2119 | dnl Where DEFAULT is `yes' or `no'. | |
2120 | dnl | |
2121 | AC_DEFUN([GLIBCXX_ENABLE_EXTERN_TEMPLATE], [ | |
2122 | ||
2123 | GLIBCXX_ENABLE(extern-template,$1,,[enable extern template]) | |
2124 | ||
2125 | AC_MSG_CHECKING([for extern template support]) | |
2126 | AC_MSG_RESULT([$enable_extern_template]) | |
2127 | ||
2128 | GLIBCXX_CONDITIONAL(ENABLE_EXTERN_TEMPLATE, test $enable_extern_template = yes) | |
2129 | ]) | |
2130 | ||
c2ba9709 JS |
2131 | dnl |
2132 | dnl Check for parallel mode pre-requisites, including OpenMP support. | |
2133 | dnl | |
2134 | dnl + Usage: GLIBCXX_ENABLE_PARALLEL | |
2135 | dnl | |
2136 | AC_DEFUN([GLIBCXX_ENABLE_PARALLEL], [ | |
2137 | ||
2138 | enable_parallel=no; | |
6995087d | 2139 | |
0aec205c BK |
2140 | # See if configured libgomp/omp.h exists. (libgomp may be in |
2141 | # noconfigdirs but not explicitly disabled.) | |
aae29963 | 2142 | if echo " ${TARGET_CONFIGDIRS} " | grep " libgomp " > /dev/null 2>&1 ; then |
0aec205c BK |
2143 | enable_parallel=yes; |
2144 | else | |
aae29963 | 2145 | AC_MSG_NOTICE([target-libgomp not built]) |
c2ba9709 JS |
2146 | fi |
2147 | ||
2148 | AC_MSG_CHECKING([for parallel mode support]) | |
2149 | AC_MSG_RESULT([$enable_parallel]) | |
2150 | GLIBCXX_CONDITIONAL(ENABLE_PARALLEL, test $enable_parallel = yes) | |
2151 | ]) | |
2152 | ||
ff66d28f | 2153 | |
b2dad0e3 | 2154 | dnl |
ff66d28f | 2155 | dnl Check for which I/O library to use: stdio, or something specific. |
37bc6ca2 | 2156 | dnl |
ff66d28f | 2157 | dnl Default is stdio. |
b2dad0e3 | 2158 | dnl |
f214923c | 2159 | AC_DEFUN([GLIBCXX_ENABLE_CSTDIO], [ |
ff66d28f | 2160 | AC_MSG_CHECKING([for underlying I/O to use]) |
b453ace3 | 2161 | GLIBCXX_ENABLE(cstdio,stdio,[[[=PACKAGE]]], |
ff66d28f PE |
2162 | [use target-specific I/O package], [permit stdio]) |
2163 | ||
2164 | # Now that libio has been removed, you can have any color you want as long | |
2165 | # as it's black. This is one big no-op until other packages are added, but | |
2166 | # showing the framework never hurts. | |
2167 | case ${enable_cstdio} in | |
2168 | stdio) | |
33590f13 BK |
2169 | CSTDIO_H=config/io/c_io_stdio.h |
2170 | BASIC_FILE_H=config/io/basic_file_stdio.h | |
2171 | BASIC_FILE_CC=config/io/basic_file_stdio.cc | |
9717c75c | 2172 | AC_MSG_RESULT(stdio) |
dd75251f | 2173 | ;; |
b2dad0e3 | 2174 | esac |
cc5112c9 | 2175 | |
4a9d5109 SW |
2176 | AC_SUBST(CSTDIO_H) |
2177 | AC_SUBST(BASIC_FILE_H) | |
6aa43d99 | 2178 | AC_SUBST(BASIC_FILE_CC) |
b2dad0e3 BK |
2179 | ]) |
2180 | ||
2181 | ||
9e57d5ca | 2182 | dnl |
ff66d28f | 2183 | dnl Check for "unusual" flags to pass to the compiler while building. |
9e57d5ca | 2184 | dnl |
ff66d28f PE |
2185 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing |
2186 | dnl experimental flags such as -fpch, -fIMI, -Dfloat=char, etc. | |
2187 | dnl --disable-cxx-flags passes nothing. | |
2188 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html | |
2189 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
2190 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
2191 | dnl + Usage: GLIBCXX_ENABLE_CXX_FLAGS(default flags) | |
2192 | dnl If "default flags" is an empty string, the effect is the same | |
2193 | dnl as --disable or --enable=no. | |
44f0760e | 2194 | dnl |
f214923c | 2195 | AC_DEFUN([GLIBCXX_ENABLE_CXX_FLAGS], [dnl |
ff66d28f PE |
2196 | AC_MSG_CHECKING([for extra compiler flags for building]) |
2197 | GLIBCXX_ENABLE(cxx-flags,$1,[=FLAGS], | |
2198 | [pass compiler FLAGS when building library], | |
2199 | [case "x$enable_cxx_flags" in | |
2200 | xno | x) enable_cxx_flags= ;; | |
2201 | x-*) ;; | |
2202 | *) AC_MSG_ERROR(_g_switch needs compiler flags as arguments) ;; | |
2203 | esac]) | |
2204 | ||
2205 | # Run through flags (either default or command-line) and set anything | |
2206 | # extra (e.g., #defines) that must accompany particular g++ options. | |
2207 | if test -n "$enable_cxx_flags"; then | |
2208 | for f in $enable_cxx_flags; do | |
2209 | case "$f" in | |
b329dd10 BK |
2210 | -fhonor-std) ;; |
2211 | -*) ;; | |
2212 | *) # and we're trying to pass /what/ exactly? | |
2213 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
ff66d28f PE |
2214 | esac |
2215 | done | |
44f0760e BK |
2216 | fi |
2217 | ||
ff66d28f PE |
2218 | EXTRA_CXX_FLAGS="$enable_cxx_flags" |
2219 | AC_MSG_RESULT($EXTRA_CXX_FLAGS) | |
2220 | AC_SUBST(EXTRA_CXX_FLAGS) | |
9e57d5ca BK |
2221 | ]) |
2222 | ||
ff66d28f | 2223 | |
ff66d28f PE |
2224 | dnl |
2225 | dnl Check to see if debugging libraries are to be built. | |
2226 | dnl | |
2227 | dnl --enable-libstdcxx-debug | |
2228 | dnl builds a separate set of debugging libraries in addition to the | |
2229 | dnl normal (shared, static) libstdc++ binaries. | |
2230 | dnl | |
2231 | dnl --disable-libstdcxx-debug | |
2232 | dnl builds only one (non-debug) version of libstdc++. | |
2233 | dnl | |
2234 | dnl --enable-libstdcxx-debug-flags=FLAGS | |
2235 | dnl iff --enable-debug == yes, then use FLAGS to build the debug library. | |
2236 | dnl | |
2237 | dnl + Usage: GLIBCXX_ENABLE_DEBUG[(DEFAULT)] | |
2238 | dnl Where DEFAULT is either `yes' or `no'. | |
2239 | dnl | |
f214923c | 2240 | AC_DEFUN([GLIBCXX_ENABLE_DEBUG], [ |
ff66d28f PE |
2241 | AC_MSG_CHECKING([for additional debug build]) |
2242 | GLIBCXX_ENABLE(libstdcxx-debug,$1,,[build extra debug library]) | |
2243 | AC_MSG_RESULT($enable_libstdcxx_debug) | |
92eabea2 | 2244 | GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_DEBUG, test $enable_libstdcxx_debug = yes) |
b2dad0e3 BK |
2245 | ]) |
2246 | ||
2247 | ||
52a11cbf | 2248 | dnl |
ff66d28f | 2249 | dnl Check for explicit debug flags. |
52a11cbf | 2250 | dnl |
ff66d28f PE |
2251 | dnl --enable-libstdcxx-debug-flags='-O1' |
2252 | dnl is a general method for passing flags to be used when | |
2253 | dnl building debug libraries with --enable-debug. | |
52a11cbf | 2254 | dnl |
ff66d28f PE |
2255 | dnl --disable-libstdcxx-debug-flags does nothing. |
2256 | dnl + Usage: GLIBCXX_ENABLE_DEBUG_FLAGS(default flags) | |
2257 | dnl If "default flags" is an empty string, the effect is the same | |
2258 | dnl as --disable or --enable=no. | |
2259 | dnl | |
f214923c | 2260 | AC_DEFUN([GLIBCXX_ENABLE_DEBUG_FLAGS], [ |
ff66d28f PE |
2261 | GLIBCXX_ENABLE(libstdcxx-debug-flags,[$1],[=FLAGS], |
2262 | [pass compiler FLAGS when building debug library], | |
2263 | [case "x$enable_libstdcxx_debug_flags" in | |
2264 | xno | x) enable_libstdcxx_debug_flags= ;; | |
2265 | x-*) ;; | |
2266 | *) AC_MSG_ERROR(_g_switch needs compiler flags as arguments) ;; | |
2267 | esac]) | |
2268 | ||
2269 | # Option parsed, now set things appropriately | |
2270 | DEBUG_FLAGS="$enable_libstdcxx_debug_flags" | |
2271 | AC_SUBST(DEBUG_FLAGS) | |
2272 | ||
2273 | AC_MSG_NOTICE([Debug build flags set to $DEBUG_FLAGS]) | |
52a11cbf RH |
2274 | ]) |
2275 | ||
2276 | ||
92eabea2 PE |
2277 | dnl |
2278 | dnl Check if the user only wants a freestanding library implementation. | |
2279 | dnl | |
2280 | dnl --disable-hosted-libstdcxx will turn off most of the library build, | |
2281 | dnl installing only the headers required by [17.4.1.3] and the language | |
2282 | dnl support library. More than that will be built (to keep the Makefiles | |
2283 | dnl conveniently clean), but not installed. | |
2284 | dnl | |
2285 | dnl Sets: | |
2286 | dnl is_hosted (yes/no) | |
2287 | dnl | |
3660e02f PE |
2288 | dnl Defines: |
2289 | dnl _GLIBCXX_HOSTED (always defined, either to 1 or 0) | |
2290 | dnl | |
f214923c | 2291 | AC_DEFUN([GLIBCXX_ENABLE_HOSTED], [ |
92eabea2 PE |
2292 | AC_ARG_ENABLE([hosted-libstdcxx], |
2293 | AC_HELP_STRING([--disable-hosted-libstdcxx], | |
b329dd10 | 2294 | [only build freestanding C++ runtime support]),, |
4c24b21a | 2295 | [case "$host" in |
b329dd10 | 2296 | arm*-*-symbianelf*) |
4c24b21a MM |
2297 | enable_hosted_libstdcxx=no |
2298 | ;; | |
b329dd10 | 2299 | *) |
4c24b21a MM |
2300 | enable_hosted_libstdcxx=yes |
2301 | ;; | |
2302 | esac]) | |
92eabea2 PE |
2303 | if test "$enable_hosted_libstdcxx" = no; then |
2304 | AC_MSG_NOTICE([Only freestanding libraries will be built]) | |
2305 | is_hosted=no | |
3660e02f | 2306 | hosted_define=0 |
92eabea2 PE |
2307 | enable_abi_check=no |
2308 | enable_libstdcxx_pch=no | |
2309 | else | |
2310 | is_hosted=yes | |
3660e02f | 2311 | hosted_define=1 |
92eabea2 PE |
2312 | fi |
2313 | GLIBCXX_CONDITIONAL(GLIBCXX_HOSTED, test $is_hosted = yes) | |
3660e02f PE |
2314 | AC_DEFINE_UNQUOTED(_GLIBCXX_HOSTED, $hosted_define, |
2315 | [Define to 1 if a full hosted library is built, or 0 if freestanding.]) | |
92eabea2 PE |
2316 | ]) |
2317 | ||
2318 | ||
6c3a9f72 | 2319 | dnl |
347669a0 | 2320 | dnl Check for template specializations for the 'long long' type. |
22248545 PE |
2321 | dnl The result determines only whether 'long long' I/O is enabled; things |
2322 | dnl like numeric_limits<> specializations are always available. | |
6c3a9f72 | 2323 | dnl |
3d7c150e BK |
2324 | dnl --enable-long-long defines _GLIBCXX_USE_LONG_LONG |
2325 | dnl --disable-long-long leaves _GLIBCXX_USE_LONG_LONG undefined | |
2326 | dnl + Usage: GLIBCXX_ENABLE_LONG_LONG[(DEFAULT)] | |
ff66d28f | 2327 | dnl Where DEFAULT is either `yes' or `no'. |
6c3a9f72 | 2328 | dnl |
f214923c | 2329 | AC_DEFUN([GLIBCXX_ENABLE_LONG_LONG], [ |
347669a0 | 2330 | GLIBCXX_ENABLE(long-long,$1,,[enable template specializations for 'long long']) |
ff66d28f | 2331 | if test $enable_long_long = yes; then |
b329dd10 BK |
2332 | AC_DEFINE(_GLIBCXX_USE_LONG_LONG, 1, |
2333 | [Define if code specialized for long long should be used.]) | |
6c3a9f72 | 2334 | fi |
347669a0 BK |
2335 | AC_MSG_CHECKING([for enabled long long specializations]) |
2336 | AC_MSG_RESULT([$enable_long_long]) | |
2337 | ]) | |
2338 | ||
2339 | ||
4cdc8761 BK |
2340 | dnl |
2341 | dnl Check for decimal floating point. | |
2342 | dnl See: | |
2343 | dnl http://gcc.gnu.org/onlinedocs/gcc/Decimal-Float.html#Decimal-Float | |
2344 | dnl | |
2345 | dnl This checks to see if the host supports decimal floating point types. | |
2346 | dnl | |
2347 | dnl Defines: | |
2348 | dnl _GLIBCXX_USE_DECIMAL_FLOAT | |
2349 | dnl | |
2350 | AC_DEFUN([GLIBCXX_ENABLE_DECIMAL_FLOAT], [ | |
2351 | ||
2352 | # Fake what AC_TRY_COMPILE does, without linking as this is | |
2353 | # unnecessary for this test. | |
2354 | ||
2355 | cat > conftest.$ac_ext << EOF | |
2356 | [#]line __oline__ "configure" | |
2357 | int main() | |
2358 | { | |
2359 | _Decimal32 d1; | |
2360 | _Decimal64 d2; | |
2361 | _Decimal128 d3; | |
2362 | return 0; | |
2363 | } | |
2364 | EOF | |
2365 | ||
2366 | AC_MSG_CHECKING([for ISO/IEC TR 24733 ]) | |
2367 | if AC_TRY_EVAL(ac_compile); then | |
2368 | AC_DEFINE(_GLIBCXX_USE_DECIMAL_FLOAT, 1, | |
2369 | [Define if ISO/IEC TR 24733 decimal floating point types are supported on this host.]) | |
2370 | enable_dfp=yes | |
2371 | else | |
2372 | enable_dfp=no | |
2373 | fi | |
2374 | AC_MSG_RESULT($enable_dfp) | |
2375 | rm -f conftest* | |
2376 | ]) | |
2377 | ||
6d585f01 PC |
2378 | dnl |
2379 | dnl Check for GNU 128-bit integer and floating point types. | |
2380 | dnl | |
2381 | dnl Note: also checks that the types aren't standard types. | |
2382 | dnl | |
2383 | dnl Defines: | |
2384 | dnl _GLIBCXX_USE_INT128 | |
2385 | dnl _GLIBCXX_USE_FLOAT128 | |
2386 | dnl | |
2387 | AC_DEFUN([GLIBCXX_ENABLE_INT128_FLOAT128], [ | |
2388 | ||
2389 | AC_LANG_SAVE | |
2390 | AC_LANG_CPLUSPLUS | |
2391 | ||
2392 | # Fake what AC_TRY_COMPILE does, without linking as this is | |
2393 | # unnecessary for this test. | |
2394 | ||
2395 | cat > conftest.$ac_ext << EOF | |
2396 | [#]line __oline__ "configure" | |
2397 | template<typename T1, typename T2> | |
2398 | struct same | |
2399 | { typedef T2 type; }; | |
2400 | ||
2401 | template<typename T> | |
2402 | struct same<T, T>; | |
2403 | ||
2404 | int main() | |
2405 | { | |
fd1e62c2 PC |
2406 | typename same<long, __int128>::type i1; |
2407 | typename same<long long, __int128>::type i2; | |
6d585f01 PC |
2408 | } |
2409 | EOF | |
2410 | ||
fd1e62c2 | 2411 | AC_MSG_CHECKING([for __int128]) |
6d585f01 PC |
2412 | if AC_TRY_EVAL(ac_compile); then |
2413 | AC_DEFINE(_GLIBCXX_USE_INT128, 1, | |
fd1e62c2 | 2414 | [Define if __int128 is supported on this host.]) |
6d585f01 PC |
2415 | enable_int128=yes |
2416 | else | |
2417 | enable_int128=no | |
2418 | fi | |
2419 | AC_MSG_RESULT($enable_int128) | |
2420 | rm -f conftest* | |
2421 | ||
2422 | cat > conftest.$ac_ext << EOF | |
2423 | [#]line __oline__ "configure" | |
2424 | template<typename T1, typename T2> | |
2425 | struct same | |
2426 | { typedef T2 type; }; | |
2427 | ||
2428 | template<typename T> | |
2429 | struct same<T, T>; | |
2430 | ||
2431 | int main() | |
2432 | { | |
2a5d011c | 2433 | typename same<double, __float128>::type f1; |
6d585f01 PC |
2434 | typename same<long double, __float128>::type f2; |
2435 | } | |
2436 | EOF | |
2437 | ||
2438 | AC_MSG_CHECKING([for __float128]) | |
2439 | if AC_TRY_EVAL(ac_compile); then | |
2440 | AC_DEFINE(_GLIBCXX_USE_FLOAT128, 1, | |
2441 | [Define if __float128 is supported on this host.]) | |
2442 | enable_float128=yes | |
2443 | else | |
2444 | enable_float128=no | |
2445 | fi | |
2446 | AC_MSG_RESULT($enable_float128) | |
2447 | rm -f conftest* | |
2448 | ||
2449 | AC_LANG_RESTORE | |
2450 | ]) | |
2451 | ||
347669a0 BK |
2452 | dnl |
2453 | dnl Check for template specializations for the 'wchar_t' type. | |
2454 | dnl | |
2455 | dnl --enable-wchar_t defines _GLIBCXX_USE_WCHAR_T | |
2456 | dnl --disable-wchar_t leaves _GLIBCXX_USE_WCHAR_T undefined | |
2457 | dnl + Usage: GLIBCXX_ENABLE_WCHAR_T[(DEFAULT)] | |
2458 | dnl Where DEFAULT is either `yes' or `no'. | |
2459 | dnl | |
8a9b2875 | 2460 | dnl Necessary support must also be present. |
347669a0 BK |
2461 | dnl |
2462 | AC_DEFUN([GLIBCXX_ENABLE_WCHAR_T], [ | |
2463 | GLIBCXX_ENABLE(wchar_t,$1,,[enable template specializations for 'wchar_t']) | |
8a9b2875 PC |
2464 | |
2465 | # Test wchar.h for mbstate_t, which is needed for char_traits and fpos. | |
2466 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
2467 | AC_MSG_CHECKING([for mbstate_t]) | |
2468 | AC_TRY_COMPILE([#include <wchar.h>], | |
2469 | [mbstate_t teststate;], | |
2470 | have_mbstate_t=yes, have_mbstate_t=no) | |
2471 | AC_MSG_RESULT($have_mbstate_t) | |
2472 | if test x"$have_mbstate_t" = xyes; then | |
2473 | AC_DEFINE(HAVE_MBSTATE_T,1,[Define if mbstate_t exists in wchar.h.]) | |
2474 | fi | |
2475 | ||
d814595c PC |
2476 | # Test it always, for use in GLIBCXX_ENABLE_C99, together with |
2477 | # ac_has_wchar_h. | |
2478 | AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
b329dd10 | 2479 | |
8a9b2875 PC |
2480 | if test x"$enable_wchar_t" = x"yes"; then |
2481 | ||
2482 | AC_LANG_SAVE | |
2483 | AC_LANG_CPLUSPLUS | |
b329dd10 | 2484 | |
8a9b2875 PC |
2485 | if test x"$ac_has_wchar_h" = xyes && |
2486 | test x"$ac_has_wctype_h" = xyes; then | |
2487 | AC_TRY_COMPILE([#include <wchar.h> | |
b329dd10 BK |
2488 | #include <stddef.h> |
2489 | wint_t i; | |
8a9b2875 PC |
2490 | long l = WEOF; |
2491 | long j = WCHAR_MIN; | |
2492 | long k = WCHAR_MAX; | |
b329dd10 BK |
2493 | namespace test |
2494 | { | |
8a9b2875 PC |
2495 | using ::btowc; |
2496 | using ::fgetwc; | |
2497 | using ::fgetws; | |
2498 | using ::fputwc; | |
2499 | using ::fputws; | |
2500 | using ::fwide; | |
b329dd10 | 2501 | using ::fwprintf; |
8a9b2875 PC |
2502 | using ::fwscanf; |
2503 | using ::getwc; | |
2504 | using ::getwchar; | |
b329dd10 BK |
2505 | using ::mbrlen; |
2506 | using ::mbrtowc; | |
2507 | using ::mbsinit; | |
2508 | using ::mbsrtowcs; | |
8a9b2875 PC |
2509 | using ::putwc; |
2510 | using ::putwchar; | |
b329dd10 BK |
2511 | using ::swprintf; |
2512 | using ::swscanf; | |
8a9b2875 | 2513 | using ::ungetwc; |
b329dd10 BK |
2514 | using ::vfwprintf; |
2515 | using ::vswprintf; | |
2516 | using ::vwprintf; | |
2517 | using ::wcrtomb; | |
2518 | using ::wcscat; | |
2519 | using ::wcschr; | |
2520 | using ::wcscmp; | |
2521 | using ::wcscoll; | |
2522 | using ::wcscpy; | |
2523 | using ::wcscspn; | |
2524 | using ::wcsftime; | |
8a9b2875 | 2525 | using ::wcslen; |
b329dd10 BK |
2526 | using ::wcsncat; |
2527 | using ::wcsncmp; | |
2528 | using ::wcsncpy; | |
8a9b2875 | 2529 | using ::wcspbrk; |
b329dd10 BK |
2530 | using ::wcsrchr; |
2531 | using ::wcsrtombs; | |
2532 | using ::wcsspn; | |
8a9b2875 | 2533 | using ::wcsstr; |
b329dd10 BK |
2534 | using ::wcstod; |
2535 | using ::wcstok; | |
8a9b2875 | 2536 | using ::wcstol; |
b329dd10 BK |
2537 | using ::wcstoul; |
2538 | using ::wcsxfrm; | |
2539 | using ::wctob; | |
8a9b2875 PC |
2540 | using ::wmemchr; |
2541 | using ::wmemcmp; | |
2542 | using ::wmemcpy; | |
2543 | using ::wmemmove; | |
2544 | using ::wmemset; | |
b329dd10 BK |
2545 | using ::wprintf; |
2546 | using ::wscanf; | |
8a9b2875 PC |
2547 | } |
2548 | ],[],[], [enable_wchar_t=no]) | |
2549 | else | |
2550 | enable_wchar_t=no | |
2551 | fi | |
2552 | ||
2553 | AC_LANG_RESTORE | |
2554 | fi | |
2555 | ||
2556 | if test x"$enable_wchar_t" = x"yes"; then | |
4651e622 | 2557 | AC_DEFINE(_GLIBCXX_USE_WCHAR_T, 1, |
b329dd10 | 2558 | [Define if code specialized for wchar_t should be used.]) |
347669a0 | 2559 | fi |
8a9b2875 | 2560 | |
347669a0 BK |
2561 | AC_MSG_CHECKING([for enabled wchar_t specializations]) |
2562 | AC_MSG_RESULT([$enable_wchar_t]) | |
6c3a9f72 BK |
2563 | ]) |
2564 | ||
2565 | ||
99246c90 | 2566 | dnl |
ff66d28f | 2567 | dnl Check to see if building and using a C++ precompiled header can be done. |
72ed2836 | 2568 | dnl |
ff66d28f PE |
2569 | dnl --enable-libstdcxx-pch=yes |
2570 | dnl default, this shows intent to use stdc++.h.gch If it looks like it | |
2571 | dnl may work, after some light-hearted attempts to puzzle out compiler | |
2572 | dnl support, flip bits on in include/Makefile.am | |
43ba4a58 | 2573 | dnl |
ff66d28f PE |
2574 | dnl --disable-libstdcxx-pch |
2575 | dnl turns off attempts to use or build stdc++.h.gch. | |
fe413112 | 2576 | dnl |
ff66d28f PE |
2577 | dnl Substs: |
2578 | dnl glibcxx_PCHFLAGS | |
fe413112 | 2579 | dnl |
f214923c | 2580 | AC_DEFUN([GLIBCXX_ENABLE_PCH], [ |
ff66d28f | 2581 | GLIBCXX_ENABLE(libstdcxx-pch,$1,,[build pre-compiled libstdc++ headers]) |
ff66d28f PE |
2582 | if test $enable_libstdcxx_pch = yes; then |
2583 | AC_CACHE_CHECK([for compiler with PCH support], | |
2584 | [glibcxx_cv_prog_CXX_pch], | |
2585 | [ac_save_CXXFLAGS="$CXXFLAGS" | |
2586 | CXXFLAGS="$CXXFLAGS -Werror -Winvalid-pch -Wno-deprecated" | |
2587 | AC_LANG_SAVE | |
2588 | AC_LANG_CPLUSPLUS | |
2589 | echo '#include <math.h>' > conftest.h | |
2590 | if $CXX $CXXFLAGS $CPPFLAGS -x c++-header conftest.h \ | |
b329dd10 BK |
2591 | -o conftest.h.gch 1>&5 2>&1 && |
2592 | echo '#error "pch failed"' > conftest.h && | |
2593 | echo '#include "conftest.h"' > conftest.cc && | |
ff66d28f PE |
2594 | $CXX -c $CXXFLAGS $CPPFLAGS conftest.cc 1>&5 2>&1 ; |
2595 | then | |
b329dd10 | 2596 | glibcxx_cv_prog_CXX_pch=yes |
ff66d28f | 2597 | else |
b329dd10 | 2598 | glibcxx_cv_prog_CXX_pch=no |
ff66d28f PE |
2599 | fi |
2600 | rm -f conftest* | |
2601 | CXXFLAGS=$ac_save_CXXFLAGS | |
2602 | AC_LANG_RESTORE | |
2603 | ]) | |
2604 | enable_libstdcxx_pch=$glibcxx_cv_prog_CXX_pch | |
c4c064e7 | 2605 | fi |
747d0967 | 2606 | |
797308b2 BK |
2607 | AC_MSG_CHECKING([for enabled PCH]) |
2608 | AC_MSG_RESULT([$enable_libstdcxx_pch]) | |
2609 | ||
92eabea2 | 2610 | GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_PCH, test $enable_libstdcxx_pch = yes) |
ff66d28f | 2611 | if test $enable_libstdcxx_pch = yes; then |
c2ba9709 | 2612 | glibcxx_PCHFLAGS="-include bits/stdc++.h" |
c4c064e7 | 2613 | else |
ff66d28f | 2614 | glibcxx_PCHFLAGS="" |
bbacb998 | 2615 | fi |
ff66d28f | 2616 | AC_SUBST(glibcxx_PCHFLAGS) |
bbacb998 PC |
2617 | ]) |
2618 | ||
7cda84dc | 2619 | |
701a3eee BK |
2620 | dnl |
2621 | dnl Check for atomic builtins. | |
2622 | dnl See: | |
75cee7c6 | 2623 | dnl http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html |
701a3eee BK |
2624 | dnl |
2625 | dnl This checks to see if the host supports the compiler-generated | |
b329dd10 | 2626 | dnl builtins for atomic operations for various integral sizes. Note, this |
35648b45 BK |
2627 | dnl is intended to be an all-or-nothing switch, so all the atomic operations |
2628 | dnl that are used should be checked. | |
701a3eee BK |
2629 | dnl |
2630 | dnl Note: | |
2cd9cdcc | 2631 | dnl libgomp and libgfortran use a link test, see CHECK_SYNC_FETCH_AND_ADD. |
701a3eee | 2632 | dnl |
701a3eee | 2633 | AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [ |
701a3eee BK |
2634 | AC_LANG_SAVE |
2635 | AC_LANG_CPLUSPLUS | |
35648b45 | 2636 | old_CXXFLAGS="$CXXFLAGS" |
2cd9cdcc PC |
2637 | |
2638 | # Do link tests if possible, instead asm tests, limited to some platforms | |
2639 | # see discussion in PR target/40134, PR libstdc++/40133 and the thread | |
2640 | # starting at http://gcc.gnu.org/ml/gcc-patches/2009-07/msg00322.html | |
2641 | atomic_builtins_link_tests=no | |
2642 | if test x$gcc_no_link != xyes; then | |
2643 | # Can do link tests. Limit to some tested platforms | |
2644 | case "$host" in | |
2645 | *-*-linux* | *-*-uclinux* | *-*-kfreebsd*-gnu | *-*-gnu*) | |
2646 | atomic_builtins_link_tests=yes | |
b329dd10 | 2647 | ;; |
2cd9cdcc PC |
2648 | esac |
2649 | fi | |
2650 | ||
2651 | if test x$atomic_builtins_link_tests = xyes; then | |
2652 | ||
2653 | # Do link tests. | |
2654 | ||
2655 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
2656 | ||
2657 | AC_MSG_CHECKING([for atomic builtins for bool]) | |
2658 | AC_CACHE_VAL(glibcxx_cv_atomic_bool, [ | |
2659 | AC_TRY_LINK( | |
2660 | [ ], | |
2661 | [typedef bool atomic_type; | |
2662 | atomic_type c1; | |
2663 | atomic_type c2; | |
75cee7c6 BK |
2664 | atomic_type c3(0); |
2665 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2666 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2667 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2668 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2669 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2670 | ], | |
2cd9cdcc PC |
2671 | [glibcxx_cv_atomic_bool=yes], |
2672 | [glibcxx_cv_atomic_bool=no]) | |
b329dd10 | 2673 | ]) |
2cd9cdcc PC |
2674 | AC_MSG_RESULT($glibcxx_cv_atomic_bool) |
2675 | ||
2676 | AC_MSG_CHECKING([for atomic builtins for short]) | |
2677 | AC_CACHE_VAL(glibcxx_cv_atomic_short, [ | |
2678 | AC_TRY_LINK( | |
2679 | [ ], | |
2680 | [typedef short atomic_type; | |
2681 | atomic_type c1; | |
2682 | atomic_type c2; | |
75cee7c6 BK |
2683 | atomic_type c3(0); |
2684 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2685 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2686 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2687 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2688 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2689 | ], | |
2cd9cdcc PC |
2690 | [glibcxx_cv_atomic_short=yes], |
2691 | [glibcxx_cv_atomic_short=no]) | |
b329dd10 | 2692 | ]) |
2cd9cdcc PC |
2693 | AC_MSG_RESULT($glibcxx_cv_atomic_short) |
2694 | ||
2695 | AC_MSG_CHECKING([for atomic builtins for int]) | |
2696 | AC_CACHE_VAL(glibcxx_cv_atomic_int, [ | |
2697 | AC_TRY_LINK( | |
2698 | [ ], | |
2699 | [typedef int atomic_type; | |
2700 | atomic_type c1; | |
2701 | atomic_type c2; | |
75cee7c6 BK |
2702 | atomic_type c3(0); |
2703 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2704 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2705 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2706 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2707 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2708 | ], | |
2cd9cdcc PC |
2709 | [glibcxx_cv_atomic_int=yes], |
2710 | [glibcxx_cv_atomic_int=no]) | |
b329dd10 | 2711 | ]) |
2cd9cdcc PC |
2712 | AC_MSG_RESULT($glibcxx_cv_atomic_int) |
2713 | ||
2714 | AC_MSG_CHECKING([for atomic builtins for long long]) | |
2715 | AC_CACHE_VAL(glibcxx_cv_atomic_long_long, [ | |
2716 | AC_TRY_LINK( | |
2717 | [ ], | |
2718 | [typedef long long atomic_type; | |
2719 | atomic_type c1; | |
2720 | atomic_type c2; | |
75cee7c6 BK |
2721 | atomic_type c3(0); |
2722 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2723 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2724 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2725 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2726 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2727 | ], | |
2cd9cdcc PC |
2728 | [glibcxx_cv_atomic_long_long=yes], |
2729 | [glibcxx_cv_atomic_long_long=no]) | |
b329dd10 | 2730 | ]) |
2cd9cdcc PC |
2731 | AC_MSG_RESULT($glibcxx_cv_atomic_long_long) |
2732 | ||
2733 | else | |
2734 | ||
2735 | # Do asm tests. | |
2736 | ||
35648b45 BK |
2737 | # Compile unoptimized. |
2738 | CXXFLAGS='-O0 -S' | |
2739 | ||
2cd9cdcc | 2740 | # Fake what AC_TRY_COMPILE does. |
701a3eee | 2741 | |
701a3eee BK |
2742 | cat > conftest.$ac_ext << EOF |
2743 | [#]line __oline__ "configure" | |
2744 | int main() | |
50ce8d3d BK |
2745 | { |
2746 | typedef bool atomic_type; | |
2747 | atomic_type c1; | |
2748 | atomic_type c2; | |
75cee7c6 BK |
2749 | atomic_type c3(0); |
2750 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2751 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2752 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2753 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2754 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2a5d011c | 2755 | |
50ce8d3d BK |
2756 | return 0; |
2757 | } | |
2758 | EOF | |
2759 | ||
2760 | AC_MSG_CHECKING([for atomic builtins for bool]) | |
2761 | if AC_TRY_EVAL(ac_compile); then | |
904bfee8 | 2762 | if grep __atomic_ conftest.s >/dev/null 2>&1 ; then |
b329dd10 | 2763 | glibcxx_cv_atomic_bool=no |
50ce8d3d | 2764 | else |
b329dd10 | 2765 | glibcxx_cv_atomic_bool=yes |
50ce8d3d BK |
2766 | fi |
2767 | fi | |
2cd9cdcc | 2768 | AC_MSG_RESULT($glibcxx_cv_atomic_bool) |
50ce8d3d BK |
2769 | rm -f conftest* |
2770 | ||
2771 | cat > conftest.$ac_ext << EOF | |
2772 | [#]line __oline__ "configure" | |
2773 | int main() | |
2774 | { | |
2775 | typedef short atomic_type; | |
2776 | atomic_type c1; | |
2777 | atomic_type c2; | |
75cee7c6 BK |
2778 | atomic_type c3(0); |
2779 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2780 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2781 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2782 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2783 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2784 | ||
50ce8d3d BK |
2785 | return 0; |
2786 | } | |
2787 | EOF | |
2788 | ||
2789 | AC_MSG_CHECKING([for atomic builtins for short]) | |
2790 | if AC_TRY_EVAL(ac_compile); then | |
904bfee8 | 2791 | if grep __atomic_ conftest.s >/dev/null 2>&1 ; then |
b329dd10 | 2792 | glibcxx_cv_atomic_short=no |
50ce8d3d | 2793 | else |
b329dd10 | 2794 | glibcxx_cv_atomic_short=yes |
50ce8d3d BK |
2795 | fi |
2796 | fi | |
2cd9cdcc | 2797 | AC_MSG_RESULT($glibcxx_cv_atomic_short) |
50ce8d3d BK |
2798 | rm -f conftest* |
2799 | ||
2800 | cat > conftest.$ac_ext << EOF | |
2801 | [#]line __oline__ "configure" | |
2802 | int main() | |
701a3eee | 2803 | { |
b329dd10 | 2804 | // NB: _Atomic_word not necessarily int. |
701a3eee BK |
2805 | typedef int atomic_type; |
2806 | atomic_type c1; | |
2807 | atomic_type c2; | |
75cee7c6 BK |
2808 | atomic_type c3(0); |
2809 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2810 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2811 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2812 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2813 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2814 | ||
35648b45 BK |
2815 | return 0; |
2816 | } | |
2817 | EOF | |
2818 | ||
2819 | AC_MSG_CHECKING([for atomic builtins for int]) | |
2820 | if AC_TRY_EVAL(ac_compile); then | |
904bfee8 | 2821 | if grep __atomic_ conftest.s >/dev/null 2>&1 ; then |
b329dd10 | 2822 | glibcxx_cv_atomic_int=no |
35648b45 | 2823 | else |
b329dd10 | 2824 | glibcxx_cv_atomic_int=yes |
35648b45 BK |
2825 | fi |
2826 | fi | |
2cd9cdcc | 2827 | AC_MSG_RESULT($glibcxx_cv_atomic_int) |
35648b45 BK |
2828 | rm -f conftest* |
2829 | ||
2830 | cat > conftest.$ac_ext << EOF | |
2831 | [#]line __oline__ "configure" | |
2832 | int main() | |
2833 | { | |
50ce8d3d | 2834 | typedef long long atomic_type; |
35648b45 BK |
2835 | atomic_type c1; |
2836 | atomic_type c2; | |
75cee7c6 BK |
2837 | atomic_type c3(0); |
2838 | __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED); | |
2839 | __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL, | |
2a5d011c | 2840 | __ATOMIC_RELAXED); |
75cee7c6 BK |
2841 | __atomic_test_and_set(&c1, __ATOMIC_RELAXED); |
2842 | __atomic_load_n(&c1, __ATOMIC_RELAXED); | |
2843 | ||
35648b45 | 2844 | return 0; |
701a3eee BK |
2845 | } |
2846 | EOF | |
35648b45 | 2847 | |
50ce8d3d | 2848 | AC_MSG_CHECKING([for atomic builtins for long long]) |
701a3eee | 2849 | if AC_TRY_EVAL(ac_compile); then |
904bfee8 | 2850 | if grep __atomic_ conftest.s >/dev/null 2>&1 ; then |
b329dd10 | 2851 | glibcxx_cv_atomic_long_long=no |
701a3eee | 2852 | else |
b329dd10 | 2853 | glibcxx_cv_atomic_long_long=yes |
701a3eee BK |
2854 | fi |
2855 | fi | |
2cd9cdcc | 2856 | AC_MSG_RESULT($glibcxx_cv_atomic_long_long) |
701a3eee BK |
2857 | rm -f conftest* |
2858 | ||
2cd9cdcc | 2859 | fi |
50ce8d3d | 2860 | |
35648b45 BK |
2861 | CXXFLAGS="$old_CXXFLAGS" |
2862 | AC_LANG_RESTORE | |
2863 | ||
531b2c7b | 2864 | # Set atomicity_dir to builtins if all but the long long test above passes. |
75cee7c6 BK |
2865 | if test $glibcxx_cv_atomic_bool = yes \ |
2866 | && test $glibcxx_cv_atomic_short = yes \ | |
531b2c7b | 2867 | && test $glibcxx_cv_atomic_int = yes; then |
a152e96f BK |
2868 | AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS, 1, |
2869 | [Define if the compiler supports C++11 atomics.]) | |
35648b45 BK |
2870 | atomicity_dir=cpu/generic/atomicity_builtins |
2871 | fi | |
2872 | ||
2873 | # If still generic, set to mutex. | |
701a3eee | 2874 | if test $atomicity_dir = "cpu/generic" ; then |
35648b45 | 2875 | atomicity_dir=cpu/generic/atomicity_mutex |
6995087d | 2876 | AC_MSG_WARN([No native atomic operations are provided for this platform.]) |
dd88bc97 | 2877 | if test "x$target_thread_file" = xsingle; then |
b329dd10 BK |
2878 | AC_MSG_WARN([They cannot be faked when thread support is disabled.]) |
2879 | AC_MSG_WARN([Thread-safety of certain classes is not guaranteed.]) | |
6995087d | 2880 | else |
b329dd10 BK |
2881 | AC_MSG_WARN([They will be faked using a mutex.]) |
2882 | AC_MSG_WARN([Performance of certain classes will degrade as a result.]) | |
6995087d | 2883 | fi |
701a3eee | 2884 | fi |
35648b45 | 2885 | |
701a3eee BK |
2886 | ]) |
2887 | ||
2888 | ||
bda243ec | 2889 | dnl |
ff66d28f PE |
2890 | dnl Check for exception handling support. If an explicit enable/disable |
2891 | dnl sjlj exceptions is given, we don't have to detect. Otherwise the | |
2892 | dnl target may or may not support call frame exceptions. | |
bda243ec | 2893 | dnl |
ff66d28f PE |
2894 | dnl --enable-sjlj-exceptions forces the use of builtin setjmp. |
2895 | dnl --disable-sjlj-exceptions forces the use of call frame unwinding. | |
1260d70f | 2896 | dnl Neither one forces an attempt at detection. |
4d16bdbb | 2897 | dnl |
ff66d28f PE |
2898 | dnl Defines: |
2899 | dnl _GLIBCXX_SJLJ_EXCEPTIONS if the compiler is configured for it | |
4d16bdbb | 2900 | dnl |
f214923c | 2901 | AC_DEFUN([GLIBCXX_ENABLE_SJLJ_EXCEPTIONS], [ |
ff66d28f PE |
2902 | AC_MSG_CHECKING([for exception model to use]) |
2903 | AC_LANG_SAVE | |
2904 | AC_LANG_CPLUSPLUS | |
1260d70f | 2905 | GLIBCXX_ENABLE(sjlj-exceptions,auto,, |
ff66d28f | 2906 | [force use of builtin_setjmp for exceptions], |
1260d70f PE |
2907 | [permit yes|no|auto]) |
2908 | ||
2909 | if test $enable_sjlj_exceptions = auto; then | |
2910 | # Botheration. Now we've got to detect the exception model. Link tests | |
2911 | # against libgcc.a are problematic since we've not been given proper -L | |
2912 | # bits for single-tree newlib and libgloss. | |
2913 | # | |
2914 | # Fake what AC_TRY_COMPILE does. XXX Look at redoing this new-style. | |
2915 | cat > conftest.$ac_ext << EOF | |
ff66d28f PE |
2916 | [#]line __oline__ "configure" |
2917 | struct S { ~S(); }; | |
2918 | void bar(); | |
2919 | void foo() | |
2920 | { | |
2921 | S s; | |
2922 | bar(); | |
2923 | } | |
2924 | EOF | |
1260d70f PE |
2925 | old_CXXFLAGS="$CXXFLAGS" |
2926 | CXXFLAGS=-S | |
2927 | if AC_TRY_EVAL(ac_compile); then | |
2928 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then | |
b329dd10 | 2929 | enable_sjlj_exceptions=yes |
1260d70f | 2930 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then |
b329dd10 | 2931 | enable_sjlj_exceptions=no |
617a1b71 | 2932 | elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then |
b329dd10 | 2933 | enable_sjlj_exceptions=no |
1260d70f PE |
2934 | fi |
2935 | fi | |
2936 | CXXFLAGS="$old_CXXFLAGS" | |
2937 | rm -f conftest* | |
2938 | fi | |
2939 | ||
cddfb1c7 BK |
2940 | # This is a tad weird, for hysterical raisins. We have to map |
2941 | # enable/disable to two different models. | |
1260d70f PE |
2942 | case $enable_sjlj_exceptions in |
2943 | yes) | |
2944 | AC_DEFINE(_GLIBCXX_SJLJ_EXCEPTIONS, 1, | |
b329dd10 | 2945 | [Define if the compiler is configured for setjmp/longjmp exceptions.]) |
1260d70f PE |
2946 | ac_exception_model_name=sjlj |
2947 | ;; | |
2948 | no) | |
2949 | ac_exception_model_name="call frame" | |
2950 | ;; | |
2951 | *) | |
2952 | AC_MSG_ERROR([unable to detect exception model]) | |
2953 | ;; | |
2954 | esac | |
ff66d28f PE |
2955 | AC_LANG_RESTORE |
2956 | AC_MSG_RESULT($ac_exception_model_name) | |
4d16bdbb PE |
2957 | ]) |
2958 | ||
2959 | ||
98e615b4 BK |
2960 | dnl |
2961 | dnl Allow visibility attributes to be used on namespaces, objects, etc. | |
2962 | dnl | |
dbe17524 PC |
2963 | dnl --enable-libstdcxx-visibility enables attempt to use visibility attributes. |
2964 | dnl --disable-libstdcxx-visibility turns off all use of visibility attributes. | |
2965 | dnl + Usage: GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY[(DEFAULT)] | |
98e615b4 BK |
2966 | dnl Where DEFAULT is 'yes'. |
2967 | dnl | |
dbe17524 PC |
2968 | AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY], [ |
2969 | GLIBCXX_ENABLE(libstdcxx-visibility,$1,,[enables visibility safe usage]) | |
98e615b4 | 2970 | |
dbe17524 | 2971 | if test x$enable_libstdcxx_visibility = xyes ; then |
98e615b4 BK |
2972 | dnl all hail libgfortran |
2973 | dnl Check whether the target supports hidden visibility. | |
2974 | AC_CACHE_CHECK([whether the target supports hidden visibility], | |
6d26724a | 2975 | glibcxx_cv_have_attribute_visibility, [ |
98e615b4 BK |
2976 | save_CFLAGS="$CFLAGS" |
2977 | CFLAGS="$CFLAGS -Werror" | |
2978 | AC_TRY_COMPILE([void __attribute__((visibility("hidden"))) foo(void) { }], | |
6d26724a RW |
2979 | [], glibcxx_cv_have_attribute_visibility=yes, |
2980 | glibcxx_cv_have_attribute_visibility=no) | |
98e615b4 | 2981 | CFLAGS="$save_CFLAGS"]) |
6d26724a | 2982 | if test $glibcxx_cv_have_attribute_visibility = no; then |
dbe17524 | 2983 | enable_libstdcxx_visibility=no |
98e615b4 BK |
2984 | fi |
2985 | fi | |
2986 | ||
dbe17524 PC |
2987 | GLIBCXX_CONDITIONAL(ENABLE_VISIBILITY, test $enable_libstdcxx_visibility = yes) |
2988 | AC_MSG_NOTICE([visibility supported: $enable_libstdcxx_visibility]) | |
98e615b4 BK |
2989 | ]) |
2990 | ||
2991 | ||
530539d9 PE |
2992 | dnl |
2993 | dnl Add version tags to symbols in shared library (or not), additionally | |
2994 | dnl marking other symbols as private/local (or not). | |
2995 | dnl | |
2799d972 BK |
2996 | dnl Sets libtool_VERSION, and determines shared library SONAME. |
2997 | dnl | |
2998 | dnl This depends on GLIBCXX CHECK_LINKER_FEATURES, but without it assumes no. | |
2999 | dnl | |
c98b201b PE |
3000 | dnl --enable-symvers=style adds a version script to the linker call when |
3001 | dnl creating the shared library. The choice of version script is | |
3002 | dnl controlled by 'style'. | |
530539d9 | 3003 | dnl --disable-symvers does not. |
2799d972 | 3004 | dnl |
3d7c150e | 3005 | dnl + Usage: GLIBCXX_ENABLE_SYMVERS[(DEFAULT)] |
ff66d28f PE |
3006 | dnl Where DEFAULT is either 'yes' or 'no'. Passing `yes' tries to |
3007 | dnl choose a default style based on linker characteristics. Passing | |
3008 | dnl 'no' disables versioning. | |
3009 | dnl | |
f214923c | 3010 | AC_DEFUN([GLIBCXX_ENABLE_SYMVERS], [ |
ff66d28f | 3011 | |
b453ace3 | 3012 | GLIBCXX_ENABLE(symvers,$1,[[[=STYLE]]], |
ff66d28f | 3013 | [enables symbol versioning of the shared library], |
c18dc5cc | 3014 | [permit yes|no|gnu|gnu-versioned-namespace|darwin|darwin-export|sun]) |
c98b201b | 3015 | |
3d7c150e | 3016 | # If we never went through the GLIBCXX_CHECK_LINKER_FEATURES macro, then we |
37bc6ca2 | 3017 | # don't know enough about $LD to do tricks... |
ff66d28f | 3018 | AC_REQUIRE([GLIBCXX_CHECK_LINKER_FEATURES]) |
c18dc5cc RO |
3019 | # Sun style symbol versions needs GNU c++filt for make_sunver.pl to work |
3020 | # with extern "C++" in version scripts. | |
3021 | AC_REQUIRE([GCC_PROG_GNU_CXXFILT]) | |
a9fdd472 GK |
3022 | |
3023 | # Turn a 'yes' into a suitable default. | |
3024 | if test x$enable_symvers = xyes ; then | |
4bd726d0 | 3025 | if test $enable_shared = no || test "x$LD" = x || test x$gcc_no_link = xyes; then |
a9fdd472 | 3026 | enable_symvers=no |
a9fdd472 | 3027 | else |
fb5c309d | 3028 | if test $with_gnu_ld = yes ; then |
d89f0ad6 | 3029 | case ${target_os} in |
b329dd10 BK |
3030 | hpux*) |
3031 | enable_symvers=no ;; | |
3032 | *) | |
3033 | enable_symvers=gnu ;; | |
d89f0ad6 | 3034 | esac |
fb5c309d BK |
3035 | else |
3036 | case ${target_os} in | |
b329dd10 | 3037 | darwin*) |
fb5c309d | 3038 | enable_symvers=darwin ;; |
c18dc5cc RO |
3039 | # Sun symbol versioning exists since Solaris 2.5. |
3040 | solaris2.[[5-9]]* | solaris2.1[[0-9]]*) | |
3041 | # make_sunver.pl needs GNU c++filt to support extern "C++" in | |
3042 | # version scripts, so disable symbol versioning if none can be | |
3043 | # found. | |
3044 | if test -z "$ac_cv_path_CXXFILT"; then | |
3045 | AC_MSG_WARN([=== You have requested Sun symbol versioning, but]) | |
3046 | AC_MSG_WARN([=== no GNU c++filt could be found.]) | |
3047 | AC_MSG_WARN([=== Symbol versioning will be disabled.]) | |
3048 | enable_symvers=no | |
3049 | else | |
3050 | enable_symvers=sun | |
3051 | fi | |
3052 | ;; | |
b329dd10 BK |
3053 | *) |
3054 | enable_symvers=no ;; | |
fb5c309d BK |
3055 | esac |
3056 | fi | |
a9fdd472 | 3057 | fi |
530539d9 | 3058 | fi |
c98b201b | 3059 | |
fb5c309d BK |
3060 | # Check to see if 'darwin' or 'darwin-export' can win. |
3061 | if test x$enable_symvers = xdarwin-export ; then | |
3062 | enable_symvers=darwin | |
3063 | fi | |
3064 | ||
c18dc5cc RO |
3065 | # Check if 'sun' was requested on non-Solaris 2 platforms. |
3066 | if test x$enable_symvers = xsun ; then | |
3067 | case ${target_os} in | |
3068 | solaris2*) | |
3069 | # All fine. | |
3070 | ;; | |
3071 | *) | |
3072 | # Unlikely to work. | |
3073 | AC_MSG_WARN([=== You have requested Sun symbol versioning, but]) | |
3074 | AC_MSG_WARN([=== you are not targetting Solaris 2.]) | |
3075 | AC_MSG_WARN([=== Symbol versioning will be disabled.]) | |
3076 | enable_symvers=no | |
3077 | ;; | |
3078 | esac | |
3079 | fi | |
3080 | ||
f47bddec | 3081 | # Check to see if 'gnu' can win. |
b329dd10 BK |
3082 | if test $enable_symvers = gnu || |
3083 | test $enable_symvers = gnu-versioned-namespace || | |
c18dc5cc | 3084 | test $enable_symvers = sun; then |
f47bddec | 3085 | # Check to see if libgcc_s exists, indicating that shared libgcc is possible. |
2c839a4e PE |
3086 | AC_MSG_CHECKING([for shared libgcc]) |
3087 | ac_save_CFLAGS="$CFLAGS" | |
3088 | CFLAGS=' -lgcc_s' | |
ff66d28f | 3089 | AC_TRY_LINK(, [return 0;], glibcxx_shared_libgcc=yes, glibcxx_shared_libgcc=no) |
2c839a4e | 3090 | CFLAGS="$ac_save_CFLAGS" |
d5325238 JJ |
3091 | if test $glibcxx_shared_libgcc = no; then |
3092 | cat > conftest.c <<EOF | |
3093 | int main (void) { return 0; } | |
3094 | EOF | |
3095 | changequote(,)dnl | |
3096 | glibcxx_libgcc_s_suffix=`${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \ | |
3097 | -shared -shared-libgcc -o conftest.so \ | |
3098 | conftest.c -v 2>&1 >/dev/null \ | |
3099 | | sed -n 's/^.* -lgcc_s\([^ ]*\) .*$/\1/p'` | |
3100 | changequote([,])dnl | |
3101 | rm -f conftest.c conftest.so | |
3102 | if test x${glibcxx_libgcc_s_suffix+set} = xset; then | |
3103 | CFLAGS=" -lgcc_s$glibcxx_libgcc_s_suffix" | |
3104 | AC_TRY_LINK(, [return 0;], glibcxx_shared_libgcc=yes) | |
3105 | CFLAGS="$ac_save_CFLAGS" | |
3106 | fi | |
3107 | fi | |
3d7c150e | 3108 | AC_MSG_RESULT($glibcxx_shared_libgcc) |
a9fdd472 | 3109 | |
a9fdd472 GK |
3110 | # For GNU ld, we need at least this version. The format is described in |
3111 | # GLIBCXX_CHECK_LINKER_FEATURES above. | |
3112 | glibcxx_min_gnu_ld_version=21400 | |
c98b201b | 3113 | |
f47bddec GK |
3114 | # If no shared libgcc, can't win. |
3115 | if test $glibcxx_shared_libgcc != yes; then | |
3116 | AC_MSG_WARN([=== You have requested GNU symbol versioning, but]) | |
3117 | AC_MSG_WARN([=== you are not building a shared libgcc_s.]) | |
3118 | AC_MSG_WARN([=== Symbol versioning will be disabled.]) | |
3119 | enable_symvers=no | |
c18dc5cc RO |
3120 | elif test $with_gnu_ld != yes && test $enable_symvers = sun; then |
3121 | : All interesting versions of Sun ld support sun style symbol versioning. | |
f47bddec | 3122 | elif test $with_gnu_ld != yes ; then |
ab3bc736 | 3123 | # just fail for now |
a9fdd472 GK |
3124 | AC_MSG_WARN([=== You have requested GNU symbol versioning, but]) |
3125 | AC_MSG_WARN([=== you are not using the GNU linker.]) | |
3126 | AC_MSG_WARN([=== Symbol versioning will be disabled.]) | |
3127 | enable_symvers=no | |
d60a2d4d ILT |
3128 | elif test $glibcxx_ld_is_gold = yes ; then |
3129 | : All versions of gold support symbol versioning. | |
a9fdd472 GK |
3130 | elif test $glibcxx_gnu_ld_version -lt $glibcxx_min_gnu_ld_version ; then |
3131 | # The right tools, the right setup, but too old. Fallbacks? | |
3132 | AC_MSG_WARN(=== Linker version $glibcxx_gnu_ld_version is too old for) | |
3133 | AC_MSG_WARN(=== full symbol versioning support in this release of GCC.) | |
3134 | AC_MSG_WARN(=== You would need to upgrade your binutils to version) | |
3135 | AC_MSG_WARN(=== $glibcxx_min_gnu_ld_version or later and rebuild GCC.) | |
58579a27 | 3136 | AC_MSG_WARN([=== Symbol versioning will be disabled.]) |
ab3bc736 BK |
3137 | enable_symvers=no |
3138 | fi | |
3139 | fi | |
3140 | ||
2799d972 BK |
3141 | # For libtool versioning info, format is CURRENT:REVISION:AGE |
3142 | libtool_VERSION=6:17:0 | |
3143 | ||
3144 | # Everything parsed; figure out what files and settings to use. | |
c98b201b | 3145 | case $enable_symvers in |
ab3bc736 | 3146 | no) |
fb5c309d | 3147 | SYMVER_FILE=config/abi/pre/none.ver |
ff66d28f | 3148 | ;; |
c98b201b | 3149 | gnu) |
fb5c309d | 3150 | SYMVER_FILE=config/abi/pre/gnu.ver |
b329dd10 BK |
3151 | AC_DEFINE(_GLIBCXX_SYMVER_GNU, 1, |
3152 | [Define to use GNU versioning in the shared library.]) | |
a9fdd472 | 3153 | ;; |
3cbc7af0 | 3154 | gnu-versioned-namespace) |
2799d972 | 3155 | libtool_VERSION=7:0:0 |
3cbc7af0 | 3156 | SYMVER_FILE=config/abi/pre/gnu-versioned-namespace.ver |
b329dd10 BK |
3157 | AC_DEFINE(_GLIBCXX_SYMVER_GNU_NAMESPACE, 1, |
3158 | [Define to use GNU namespace versioning in the shared library.]) | |
3cbc7af0 | 3159 | ;; |
fb5c309d BK |
3160 | darwin) |
3161 | SYMVER_FILE=config/abi/pre/gnu.ver | |
b329dd10 BK |
3162 | AC_DEFINE(_GLIBCXX_SYMVER_DARWIN, 1, |
3163 | [Define to use darwin versioning in the shared library.]) | |
ff66d28f | 3164 | ;; |
c18dc5cc RO |
3165 | sun) |
3166 | SYMVER_FILE=config/abi/pre/gnu.ver | |
b329dd10 BK |
3167 | AC_DEFINE(_GLIBCXX_SYMVER_SUN, 1, |
3168 | [Define to use Sun versioning in the shared library.]) | |
c18dc5cc | 3169 | ;; |
c98b201b PE |
3170 | esac |
3171 | ||
fb5c309d BK |
3172 | if test x$enable_symvers != xno ; then |
3173 | AC_DEFINE(_GLIBCXX_SYMVER, 1, | |
3174 | [Define to use symbol versioning in the shared library.]) | |
3175 | fi | |
3176 | ||
1f93f687 JJ |
3177 | AC_CACHE_CHECK([whether the target supports .symver directive], |
3178 | glibcxx_cv_have_as_symver_directive, [ | |
3179 | AC_TRY_COMPILE([void foo (void); __asm (".symver foo, bar@SYMVER");], | |
3180 | [], glibcxx_cv_have_as_symver_directive=yes, | |
3181 | glibcxx_cv_have_as_symver_directive=no)]) | |
3182 | if test $glibcxx_cv_have_as_symver_directive = yes; then | |
3183 | AC_DEFINE(HAVE_AS_SYMVER_DIRECTIVE, 1, | |
3184 | [Define to 1 if the target assembler supports .symver directive.]) | |
3185 | fi | |
3186 | ||
fb5c309d BK |
3187 | AC_SUBST(SYMVER_FILE) |
3188 | AC_SUBST(port_specific_symbol_files) | |
3189 | GLIBCXX_CONDITIONAL(ENABLE_SYMVERS, test $enable_symvers != no) | |
3190 | GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_GNU, test $enable_symvers = gnu) | |
3cbc7af0 | 3191 | GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_GNU_NAMESPACE, test $enable_symvers = gnu-versioned-namespace) |
fb5c309d | 3192 | GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_DARWIN, test $enable_symvers = darwin) |
c18dc5cc | 3193 | GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_SUN, test $enable_symvers = sun) |
fb5c309d BK |
3194 | AC_MSG_NOTICE(versioning on shared library symbols is $enable_symvers) |
3195 | ||
c18dc5cc RO |
3196 | if test $enable_symvers != no ; then |
3197 | case ${target_os} in | |
3198 | # The Solaris 2 runtime linker doesn't support the GNU extension of | |
3199 | # binding the same symbol to different versions | |
3200 | solaris2*) | |
cc2de92d | 3201 | ;; |
c18dc5cc RO |
3202 | # Other platforms with GNU symbol versioning (GNU/Linux, more?) do. |
3203 | *) | |
8198d541 | 3204 | AC_DEFINE(HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT, 1, |
b329dd10 | 3205 | [Define to 1 if the target runtime linker supports binding the same symbol to different versions.]) |
cc2de92d | 3206 | ;; |
c18dc5cc RO |
3207 | esac |
3208 | fi | |
c18dc5cc | 3209 | |
fb5c309d | 3210 | # Now, set up compatibility support, if any. |
bb2b2a24 BK |
3211 | # In addition, need this to deal with std::size_t mangling in |
3212 | # src/compatibility.cc. In a perfect world, could use | |
3213 | # typeid(std::size_t).name()[0] to do direct substitution. | |
3214 | AC_MSG_CHECKING([for size_t as unsigned int]) | |
3215 | ac_save_CFLAGS="$CFLAGS" | |
3216 | CFLAGS="-Werror" | |
b329dd10 BK |
3217 | AC_TRY_COMPILE(, [__SIZE_TYPE__* stp; unsigned int* uip; stp = uip;], |
3218 | [glibcxx_size_t_is_i=yes], [glibcxx_size_t_is_i=no]) | |
bb2b2a24 BK |
3219 | CFLAGS=$ac_save_CFLAGS |
3220 | if test "$glibcxx_size_t_is_i" = yes; then | |
3221 | AC_DEFINE(_GLIBCXX_SIZE_T_IS_UINT, 1, [Define if size_t is unsigned int.]) | |
3222 | fi | |
3223 | AC_MSG_RESULT([$glibcxx_size_t_is_i]) | |
3224 | ||
3225 | AC_MSG_CHECKING([for ptrdiff_t as int]) | |
3226 | ac_save_CFLAGS="$CFLAGS" | |
3227 | CFLAGS="-Werror" | |
b329dd10 BK |
3228 | AC_TRY_COMPILE(, [__PTRDIFF_TYPE__* ptp; int* ip; ptp = ip;], |
3229 | [glibcxx_ptrdiff_t_is_i=yes], [glibcxx_ptrdiff_t_is_i=no]) | |
bb2b2a24 BK |
3230 | CFLAGS=$ac_save_CFLAGS |
3231 | if test "$glibcxx_ptrdiff_t_is_i" = yes; then | |
3232 | AC_DEFINE(_GLIBCXX_PTRDIFF_T_IS_INT, 1, [Define if ptrdiff_t is int.]) | |
3233 | fi | |
3234 | AC_MSG_RESULT([$glibcxx_ptrdiff_t_is_i]) | |
ff66d28f PE |
3235 | ]) |
3236 | ||
3237 | ||
3238 | dnl | |
3239 | dnl Setup to use the gcc gthr.h thread-specific memory and mutex model. | |
3240 | dnl We must stage the required headers so that they will be installed | |
3241 | dnl with the library (unlike libgcc, the STL implementation is provided | |
3242 | dnl solely within headers). Since we must not inject random user-space | |
3243 | dnl macro names into user-provided C++ code, we first stage into <file>-in | |
3244 | dnl and process to <file> with an output command. The reason for a two- | |
3245 | dnl stage process here is to correctly handle $srcdir!=$objdir without | |
3246 | dnl having to write complex code (the sed commands to clean the macro | |
3247 | dnl namespace are complex and fragile enough as it is). We must also | |
3248 | dnl add a relative path so that -I- is supported properly. | |
3249 | dnl | |
f214923c | 3250 | AC_DEFUN([GLIBCXX_ENABLE_THREADS], [ |
ff66d28f | 3251 | AC_MSG_CHECKING([for thread model used by GCC]) |
fbe057bb | 3252 | target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'` |
ff66d28f | 3253 | AC_MSG_RESULT([$target_thread_file]) |
ff66d28f PE |
3254 | ]) |
3255 | ||
3256 | ||
b8c41c8e CF |
3257 | dnl |
3258 | dnl Check if gthread implementation defines the types and functions | |
3259 | dnl required by the c++0x thread library. Conforming gthread | |
3260 | dnl implementations can define __GTHREADS_CXX0X to enable use with c++0x. | |
3261 | dnl | |
bae868fb RO |
3262 | dnl GLIBCXX_ENABLE_SYMVERS must be done before this. |
3263 | dnl | |
b8c41c8e | 3264 | AC_DEFUN([GLIBCXX_CHECK_GTHREADS], [ |
bae868fb RO |
3265 | GLIBCXX_ENABLE(libstdcxx-threads,auto,,[enable C++11 threads support]) |
3266 | ||
3267 | if test x$enable_libstdcxx_threads = xauto || | |
3268 | test x$enable_libstdcxx_threads = xyes; then | |
3269 | ||
b8c41c8e CF |
3270 | AC_LANG_SAVE |
3271 | AC_LANG_CPLUSPLUS | |
3272 | ||
3273 | ac_save_CXXFLAGS="$CXXFLAGS" | |
5d1c8e77 RO |
3274 | CXXFLAGS="$CXXFLAGS -fno-exceptions \ |
3275 | -I${toplevel_srcdir}/libgcc -I${toplevel_builddir}/libgcc" | |
b8c41c8e | 3276 | |
3b2eeb43 JW |
3277 | target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'` |
3278 | case $target_thread_file in | |
3279 | posix) | |
3280 | CXXFLAGS="$CXXFLAGS -DSUPPORTS_WEAK -DGTHREAD_USE_WEAK -D_PTHREADS" | |
3281 | esac | |
3282 | ||
3283 | AC_MSG_CHECKING([whether it can be safely assumed that mutex_timedlock is available]) | |
6545e33e PC |
3284 | |
3285 | AC_TRY_COMPILE([#include <unistd.h>], | |
3286 | [ | |
3b2eeb43 JW |
3287 | // In case of POSIX threads check _POSIX_TIMEOUTS. |
3288 | #if (defined(_PTHREADS) \ | |
2a5d011c | 3289 | && (!defined(_POSIX_TIMEOUTS) || _POSIX_TIMEOUTS <= 0)) |
6545e33e PC |
3290 | #error |
3291 | #endif | |
3292 | ], [ac_gthread_use_mutex_timedlock=1], [ac_gthread_use_mutex_timedlock=0]) | |
3293 | ||
3294 | AC_DEFINE_UNQUOTED(_GTHREAD_USE_MUTEX_TIMEDLOCK, $ac_gthread_use_mutex_timedlock, | |
2a5d011c | 3295 | [Define to 1 if mutex_timedlock is available.]) |
6545e33e PC |
3296 | |
3297 | if test $ac_gthread_use_mutex_timedlock = 1 ; then res_mutex_timedlock=yes ; | |
3298 | else res_mutex_timedlock=no ; fi | |
3299 | AC_MSG_RESULT([$res_mutex_timedlock]) | |
3300 | ||
b8c41c8e CF |
3301 | AC_MSG_CHECKING([for gthreads library]) |
3302 | ||
3b2eeb43 | 3303 | AC_TRY_COMPILE([#include "gthr.h"], |
b8c41c8e | 3304 | [ |
a1c5742d PC |
3305 | #ifndef __GTHREADS_CXX0X |
3306 | #error | |
3307 | #endif | |
bae868fb | 3308 | ], [case $target_os in |
7888f266 | 3309 | # gthreads support breaks symbol versioning on Solaris 9 (PR |
bae868fb | 3310 | # libstdc++/52189). |
7888f266 | 3311 | solaris2.9*) |
bae868fb RO |
3312 | if test x$enable_symvers = xno; then |
3313 | ac_has_gthreads=yes | |
3314 | elif test x$enable_libstdcxx_threads = xyes; then | |
3315 | AC_MSG_WARN([You have requested C++11 threads support, but]) | |
3316 | AC_MSG_WARN([this breaks symbol versioning.]) | |
3317 | ac_has_gthreads=yes | |
3318 | else | |
3319 | ac_has_gthreads=no | |
3320 | fi | |
3321 | ;; | |
3322 | *) | |
3323 | ac_has_gthreads=yes | |
3324 | ;; | |
3325 | esac], | |
3326 | [ac_has_gthreads=no]) | |
3327 | else | |
3328 | ac_has_gthreads=no | |
3329 | fi | |
b8c41c8e CF |
3330 | |
3331 | AC_MSG_RESULT([$ac_has_gthreads]) | |
3332 | ||
3333 | if test x"$ac_has_gthreads" = x"yes"; then | |
3334 | AC_DEFINE(_GLIBCXX_HAS_GTHREADS, 1, | |
b329dd10 | 3335 | [Define if gthreads library is available.]) |
b8c41c8e CF |
3336 | fi |
3337 | ||
3338 | CXXFLAGS="$ac_save_CXXFLAGS" | |
3339 | AC_LANG_RESTORE | |
3340 | ]) | |
3341 | ||
3342 | ||
ff66d28f PE |
3343 | # Check whether LC_MESSAGES is available in <locale.h>. |
3344 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
3345 | # | |
3346 | # This file file be copied and used freely without restrictions. It can | |
3347 | # be used in projects which are not available under the GNU Public License | |
3348 | # but which still want to provide support for the GNU gettext functionality. | |
3349 | # Please note that the actual code is *not* freely available. | |
f214923c | 3350 | AC_DEFUN([AC_LC_MESSAGES], [ |
ff66d28f PE |
3351 | AC_CHECK_HEADER(locale.h, [ |
3352 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, | |
99bf8d16 | 3353 | [AC_TRY_COMPILE([#include <locale.h>], [return LC_MESSAGES], |
ff66d28f PE |
3354 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) |
3355 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
b329dd10 BK |
3356 | AC_DEFINE(HAVE_LC_MESSAGES, 1, |
3357 | [Define if LC_MESSAGES is available in <locale.h>.]) | |
ff66d28f PE |
3358 | fi |
3359 | ]) | |
3360 | ]) | |
3361 | ||
43653c33 JW |
3362 | dnl |
3363 | dnl Check whether get_nprocs is available in <sys/sysinfo.h>, and define _GLIBCXX_USE_GET_NPROCS. | |
3364 | dnl | |
3365 | AC_DEFUN([GLIBCXX_CHECK_GET_NPROCS], [ | |
3366 | ||
3367 | AC_LANG_SAVE | |
3368 | AC_LANG_CPLUSPLUS | |
3369 | ac_save_CXXFLAGS="$CXXFLAGS" | |
3370 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
3371 | ||
3372 | AC_MSG_CHECKING([for get_nprocs]) | |
3373 | AC_CACHE_VAL(glibcxx_cv_GET_NPROCS, [ | |
3374 | GCC_TRY_COMPILE_OR_LINK( | |
3375 | [#include <sys/sysinfo.h>], | |
3376 | [int n = get_nprocs();], | |
3377 | [glibcxx_cv_GET_NPROCS=yes], | |
3378 | [glibcxx_cv_GET_NPROCS=no]) | |
3379 | ]) | |
3380 | if test $glibcxx_cv_GET_NPROCS = yes; then | |
3381 | AC_DEFINE(_GLIBCXX_USE_GET_NPROCS, 1, [Define if get_nprocs is available in <sys/sysinfo.h>.]) | |
3382 | fi | |
3383 | AC_MSG_RESULT($glibcxx_cv_GET_NPROCS) | |
3384 | ||
3385 | CXXFLAGS="$ac_save_CXXFLAGS" | |
3386 | AC_LANG_RESTORE | |
3387 | ]) | |
3388 | ||
3389 | dnl | |
3390 | dnl Check whether sysconf(_SC_NPROCESSORS_ONLN) is available in <unistd.h>, and define _GLIBCXX_USE_SC_NPROCESSORS_ONLN. | |
3391 | dnl | |
3392 | AC_DEFUN([GLIBCXX_CHECK_SC_NPROCESSORS_ONLN], [ | |
3393 | ||
3394 | AC_LANG_SAVE | |
3395 | AC_LANG_CPLUSPLUS | |
3396 | ac_save_CXXFLAGS="$CXXFLAGS" | |
3397 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
3398 | ||
3399 | AC_MSG_CHECKING([for _SC_NPROCESSORS_ONLN]) | |
3400 | AC_CACHE_VAL(glibcxx_cv_SC_NPROCESSORS_ONLN, [ | |
3401 | GCC_TRY_COMPILE_OR_LINK( | |
3402 | [#include <unistd.h>], | |
3403 | [int n = sysconf(_SC_NPROCESSORS_ONLN);], | |
3404 | [glibcxx_cv_SC_NPROCESSORS_ONLN=yes], | |
3405 | [glibcxx_cv_SC_NPROCESSORS_ONLN=no]) | |
3406 | ]) | |
3407 | if test $glibcxx_cv_SC_NPROCESSORS_ONLN = yes; then | |
3408 | AC_DEFINE(_GLIBCXX_USE_SC_NPROCESSORS_ONLN, 1, [Define if _SC_NPROCESSORS_ONLN is available in <unistd.h>.]) | |
3409 | fi | |
3410 | AC_MSG_RESULT($glibcxx_cv_SC_NPROCESSORS_ONLN) | |
3411 | ||
3412 | CXXFLAGS="$ac_save_CXXFLAGS" | |
3413 | AC_LANG_RESTORE | |
3414 | ]) | |
3415 | ||
5ee360d0 JW |
3416 | dnl |
3417 | dnl Check whether sysconf(_SC_NPROC_ONLN) is available in <unistd.h>, and define _GLIBCXX_USE_SC_NPROC_ONLN. | |
3418 | dnl | |
3419 | AC_DEFUN([GLIBCXX_CHECK_SC_NPROC_ONLN], [ | |
3420 | ||
3421 | AC_LANG_SAVE | |
3422 | AC_LANG_CPLUSPLUS | |
3423 | ac_save_CXXFLAGS="$CXXFLAGS" | |
3424 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
3425 | ||
3426 | AC_MSG_CHECKING([for _SC_NPROC_ONLN]) | |
3427 | AC_CACHE_VAL(glibcxx_cv_SC_NPROC_ONLN, [ | |
3428 | GCC_TRY_COMPILE_OR_LINK( | |
3429 | [#include <unistd.h>], | |
3430 | [int n = sysconf(_SC_NPROC_ONLN);], | |
3431 | [glibcxx_cv_SC_NPROC_ONLN=yes], | |
3432 | [glibcxx_cv_SC_NPROC_ONLN=no]) | |
3433 | ]) | |
3434 | if test $glibcxx_cv_SC_NPROC_ONLN = yes; then | |
3435 | AC_DEFINE(_GLIBCXX_USE_SC_NPROC_ONLN, 1, [Define if _SC_NPROC_ONLN is available in <unistd.h>.]) | |
3436 | fi | |
3437 | AC_MSG_RESULT($glibcxx_cv_SC_NPROC_ONLN) | |
3438 | ||
3439 | CXXFLAGS="$ac_save_CXXFLAGS" | |
3440 | AC_LANG_RESTORE | |
3441 | ]) | |
3442 | ||
3443 | dnl | |
3444 | dnl Check whether pthread_num_processors_np is available in <pthread.h>, and define _GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP. | |
3445 | dnl | |
3446 | AC_DEFUN([GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP], [ | |
3447 | ||
3448 | AC_LANG_SAVE | |
3449 | AC_LANG_CPLUSPLUS | |
3450 | ac_save_CXXFLAGS="$CXXFLAGS" | |
3451 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
3452 | ||
3453 | AC_MSG_CHECKING([for pthreads_num_processors_np]) | |
3454 | AC_CACHE_VAL(glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP, [ | |
3455 | GCC_TRY_COMPILE_OR_LINK( | |
3456 | [#include <pthread.h>], | |
3457 | [int n = pthread_num_processors_np();], | |
3458 | [glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=yes], | |
3459 | [glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=no]) | |
3460 | ]) | |
3461 | if test $glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP = yes; then | |
3462 | AC_DEFINE(_GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP, 1, [Define if pthreads_num_processors_np is available in <pthread.h>.]) | |
3463 | fi | |
3464 | AC_MSG_RESULT($glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP) | |
3465 | ||
3466 | CXXFLAGS="$ac_save_CXXFLAGS" | |
3467 | AC_LANG_RESTORE | |
3468 | ]) | |
3469 | ||
3470 | dnl | |
3471 | dnl Check whether sysctl is available in <pthread.h>, and define _GLIBCXX_USE_SYSCTL_HW_NCPU. | |
3472 | dnl | |
3473 | AC_DEFUN([GLIBCXX_CHECK_SYSCTL_HW_NCPU], [ | |
3474 | ||
3475 | AC_LANG_SAVE | |
3476 | AC_LANG_CPLUSPLUS | |
3477 | ac_save_CXXFLAGS="$CXXFLAGS" | |
3478 | CXXFLAGS="$CXXFLAGS -fno-exceptions" | |
3479 | ||
3480 | AC_MSG_CHECKING([for hw.ncpu sysctl]) | |
3481 | AC_CACHE_VAL(glibcxx_cv_SYSCTL_HW_NCPU, [ | |
3482 | GCC_TRY_COMPILE_OR_LINK( | |
3483 | [ | |
3484 | #include <stddef.h> | |
3485 | #include <sys/sysctl.h> | |
3486 | ], | |
3487 | [ | |
3488 | int count; | |
3489 | size_t size = sizeof(count); | |
3490 | int mib[] = { CTL_HW, HW_NCPU }; | |
3491 | sysctl(mib, 2, &count, &size, NULL, 0); | |
3492 | ], | |
3493 | [glibcxx_cv_SYSCTL_HW_NCPU=yes], | |
3494 | [glibcxx_cv_SYSCTL_HW_NCPU=no]) | |
3495 | ]) | |
3496 | if test $glibcxx_cv_SYSCTL_HW_NCPU = yes; then | |
3497 | AC_DEFINE(_GLIBCXX_USE_SYSCTL_HW_NCPU, 1, [Define if sysctl(), CTL_HW and HW_NCPU are available in <sys/sysctl.h>.]) | |
3498 | fi | |
3499 | AC_MSG_RESULT($glibcxx_cv_SYSCTL_HW_NCPU) | |
3500 | ||
3501 | CXXFLAGS="$ac_save_CXXFLAGS" | |
3502 | AC_LANG_RESTORE | |
3503 | ]) | |
43653c33 | 3504 | |
2a5d011c BK |
3505 | dnl |
3506 | dnl Check to see if python pretty printing can be activated. | |
3507 | dnl | |
3508 | dnl --with-python-dir=dir | |
3509 | dnl installs directory into $prefix/dir | |
3510 | AC_DEFUN([GLIBCXX_ENABLE_PYTHON], [ | |
3511 | ||
3512 | AC_MSG_CHECKING([for custom python install directory]) | |
3513 | AC_ARG_WITH([python-dir], | |
3514 | AS_HELP_STRING([--with-python-dir], | |
3515 | [the location to install Python modules. This path is relative starting from the prefix.]), | |
3516 | [with_python_dir=$withval], [with_python_dir="no"]) | |
3517 | AC_MSG_RESULT(${with_python_dir}) | |
3518 | ||
3519 | # Needed for installing Python modules during make install. | |
3520 | python_mod_dir="${with_python_dir}" | |
3521 | AC_SUBST(python_mod_dir) | |
3522 | GLIBCXX_CONDITIONAL(ENABLE_PYTHONDIR, test $python_mod_dir != no) | |
3523 | ]) | |
3524 | ||
b124c5c4 BK |
3525 | dnl |
3526 | dnl Check to see if -Werror is disabled. | |
3527 | dnl | |
3528 | dnl --enable-werror/--disable-werror | |
3529 | AC_DEFUN([GLIBCXX_ENABLE_WERROR], [ | |
3530 | AC_MSG_CHECKING([for -Werror]) | |
3531 | GLIBCXX_ENABLE(werror,$1,,[turns on -Werror]) | |
3532 | AC_MSG_RESULT($enable_werror) | |
3533 | GLIBCXX_CONDITIONAL(ENABLE_WERROR, test $enable_werror = yes) | |
3534 | ]) | |
3535 | ||
2a5d011c | 3536 | |
cddfb1c7 | 3537 | # Macros from the top-level gcc directory. |
c18dc5cc | 3538 | m4_include([../config/gc++filt.m4]) |
cddfb1c7 | 3539 | m4_include([../config/tls.m4]) |