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953ff289 DN |
1 | # Process this file with autoconf to produce a configure script, like so: |
2 | # aclocal -I ../config && autoconf && autoheader && automake | |
3 | ||
df58e648 | 4 | AC_PREREQ(2.64) |
f1f3453e | 5 | AC_INIT([GNU Offloading and Multi Processing Runtime Library], 1.0,,[libgomp]) |
953ff289 DN |
6 | AC_CONFIG_HEADER(config.h) |
7 | ||
8 | # ------- | |
9 | # Options | |
10 | # ------- | |
11 | ||
12 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
13 | LIBGOMP_ENABLE(version-specific-runtime-libs, no, , | |
14 | [Specify that runtime libraries should be installed in a compiler-specific directory], | |
15 | permit yes|no) | |
16 | AC_MSG_RESULT($enable_version_specific_runtime_libs) | |
17 | ||
3721b9e1 DF |
18 | # We would like our source tree to be readonly. However when releases or |
19 | # pre-releases are generated, the flex/bison generated files as well as the | |
20 | # various formats of manuals need to be included along with the rest of the | |
21 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
22 | # just that. | |
23 | AC_MSG_CHECKING([for --enable-generated-files-in-srcdir]) | |
24 | LIBGOMP_ENABLE(generated-files-in-srcdir, no, , | |
25 | [put copies of generated files in source dir intended for creating source | |
26 | tarballs for users without texinfo bison or flex.], | |
27 | permit yes|no) | |
28 | AC_MSG_RESULT($enable_generated_files_in_srcdir) | |
29 | AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes) | |
30 | ||
31 | ||
953ff289 DN |
32 | # ------- |
33 | # ------- | |
34 | ||
35 | # Gets build, host, target, *_vendor, *_cpu, *_os, etc. | |
36 | # | |
37 | # You will slowly go insane if you do not grok the following fact: when | |
38 | # building this library, the top-level /target/ becomes the library's /host/. | |
39 | # | |
40 | # configure then causes --target to default to --host, exactly like any | |
41 | # other package using autoconf. Therefore, 'target' and 'host' will | |
42 | # always be the same. This makes sense both for native and cross compilers | |
43 | # just think about it for a little while. :-) | |
44 | # | |
45 | # Also, if this library is being configured as part of a cross compiler, the | |
46 | # top-level configure script will pass the "real" host as $with_cross_host. | |
47 | # | |
48 | # Do not delete or change the following two lines. For why, see | |
49 | # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html | |
50 | AC_CANONICAL_SYSTEM | |
51 | target_alias=${target_alias-$host_alias} | |
52 | ||
53 | # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the | |
54 | # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. | |
55 | # 1.9.0: minimum required version | |
56 | # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch | |
57 | # of other PACKAGE_* variables will, however, and there's nothing | |
58 | # we can do about that; they come from AC_INIT). | |
59 | # foreign: we don't follow the normal rules for GNU packages (no COPYING | |
60 | # file in the top srcdir, etc, etc), so stop complaining. | |
13917ae3 | 61 | # no-dist: we don't want 'dist' and related rules. |
953ff289 DN |
62 | # -Wall: turns on all automake warnings... |
63 | # -Wno-portability: ...except this one, since GNU make is required. | |
64 | # -Wno-override: ... and this one, since we do want this in testsuite. | |
13917ae3 | 65 | AM_INIT_AUTOMAKE([1.9.0 foreign no-dist -Wall -Wno-portability -Wno-override]) |
953ff289 DN |
66 | AM_ENABLE_MULTILIB(, ..) |
67 | ||
68 | # Calculate toolexeclibdir | |
69 | # Also toolexecdir, though it's only used in toolexeclibdir | |
70 | case ${enable_version_specific_runtime_libs} in | |
71 | yes) | |
72 | # Need the gcc compiler version to know where to install libraries | |
73 | # and header files if --enable-version-specific-runtime-libs option | |
74 | # is selected. | |
75 | toolexecdir='$(libdir)/gcc/$(target_alias)' | |
76 | toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' | |
77 | ;; | |
78 | no) | |
79 | if test -n "$with_cross_host" && | |
80 | test x"$with_cross_host" != x"no"; then | |
81 | # Install a library built with a cross compiler in tooldir, not libdir. | |
82 | toolexecdir='$(exec_prefix)/$(target_alias)' | |
83 | toolexeclibdir='$(toolexecdir)/lib' | |
84 | else | |
85 | toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
86 | toolexeclibdir='$(libdir)' | |
87 | fi | |
88 | multi_os_directory=`$CC -print-multi-os-directory` | |
89 | case $multi_os_directory in | |
90 | .) ;; # Avoid trailing /. | |
91 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; | |
92 | esac | |
93 | ;; | |
94 | esac | |
95 | AC_SUBST(toolexecdir) | |
96 | AC_SUBST(toolexeclibdir) | |
97 | ||
98 | # Check the compiler. | |
99 | # The same as in boehm-gc and libstdc++. Have to borrow it from there. | |
100 | # We must force CC to /not/ be precious variables; otherwise | |
101 | # the wrong, non-multilib-adjusted value will be used in multilibs. | |
102 | # As a side effect, we have to subst CFLAGS ourselves. | |
103 | ||
104 | m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) | |
105 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
106 | AC_PROG_CC | |
1b3b24c2 | 107 | m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
953ff289 DN |
108 | |
109 | AC_SUBST(CFLAGS) | |
110 | ||
111 | # In order to override CFLAGS_FOR_TARGET, all of our special flags go | |
112 | # in XCFLAGS. But we need them in CFLAGS during configury. So put them | |
113 | # in both places for now and restore CFLAGS at the end of config. | |
114 | save_CFLAGS="$CFLAGS" | |
115 | ||
116 | # Add -Wall -Werror if we are using GCC. | |
117 | if test "x$GCC" = "xyes"; then | |
118 | XCFLAGS="$XCFLAGS -Wall -Werror" | |
119 | fi | |
120 | ||
121 | # Find other programs we need. | |
122 | AC_CHECK_TOOL(AR, ar) | |
123 | AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) | |
124 | AC_PATH_PROG(PERL, perl, perl-not-found-in-path-error) | |
125 | AC_PROG_MAKE_SET | |
126 | AC_PROG_INSTALL | |
127 | ||
748b9d7c DF |
128 | # See if makeinfo has been installed and is modern enough |
129 | # that we can use it. | |
130 | ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], | |
131 | [GNU texinfo.* \([0-9][0-9.]*\)], | |
a7415017 | 132 | [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
748b9d7c DF |
133 | AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") |
134 | ||
135 | ||
953ff289 DN |
136 | # Configure libtool |
137 | AM_PROG_LIBTOOL | |
7de6ba7a | 138 | ACX_LT_HOST_FLAGS |
953ff289 DN |
139 | AC_SUBST(enable_shared) |
140 | AC_SUBST(enable_static) | |
141 | ||
c41303c6 RH |
142 | AM_MAINTAINER_MODE |
143 | ||
1ec601bf FXC |
144 | # Create a spec file, so that compile/link tests don't fail |
145 | test -f libgfortran.spec || touch libgfortran.spec | |
146 | FCFLAGS="$FCFLAGS -L." | |
147 | ||
953ff289 DN |
148 | # We need gfortran to compile parts of the library |
149 | # We can't use AC_PROG_FC because it expects a fully working gfortran. | |
150 | #AC_PROG_FC(gfortran) | |
0046b1a7 RW |
151 | case `echo $GFORTRAN` in |
152 | -* | no* ) | |
153 | FC=no ;; | |
154 | *) | |
2122aa97 PB |
155 | set dummy $GFORTRAN; ac_word=$2 |
156 | if test -x "$ac_word"; then | |
d0709b6a PB |
157 | FC="$GFORTRAN" |
158 | else | |
159 | FC=no | |
160 | fi ;; | |
0046b1a7 | 161 | esac |
953ff289 | 162 | AC_PROG_FC(gfortran) |
1ec601bf | 163 | FCFLAGS="$FCFLAGS -Wall -L../libgfortran" |
953ff289 DN |
164 | |
165 | # For libtool versioning info, format is CURRENT:REVISION:AGE | |
166 | libtool_VERSION=1:0:0 | |
167 | AC_SUBST(libtool_VERSION) | |
168 | ||
169 | # Check header files. | |
170 | AC_STDC_HEADERS | |
171 | AC_HEADER_TIME | |
a1b25e49 | 172 | ACX_HEADER_STRING |
6d9d1eeb | 173 | AC_CHECK_HEADERS(pthread.h unistd.h semaphore.h sys/loadavg.h sys/sysctl.h sys/time.h) |
953ff289 | 174 | |
18cbfd85 PB |
175 | GCC_HEADER_STDINT(gstdint.h) |
176 | ||
953ff289 | 177 | XPCFLAGS="" |
cd93945d SH |
178 | case "$host" in |
179 | *-*-rtems*) | |
180 | # RTEMS supports Pthreads, but the library is not available at GCC build time. | |
181 | ;; | |
44a7d18d TS |
182 | nvptx*-*-*) |
183 | # NVPTX does not support Pthreads, has its own code replacement. | |
6103184e | 184 | libgomp_use_pthreads=no |
44a7d18d | 185 | ;; |
cd93945d SH |
186 | *) |
187 | # Check to see if -pthread or -lpthread is needed. Prefer the former. | |
188 | # In case the pthread.h system header is not found, this test will fail. | |
189 | CFLAGS="$CFLAGS -pthread" | |
190 | AC_LINK_IFELSE( | |
191 | [AC_LANG_PROGRAM( | |
192 | [#include <pthread.h> | |
193 | void *g(void *d) { return NULL; }], | |
194 | [pthread_t t; pthread_create(&t,NULL,g,NULL);])], | |
195 | [XPCFLAGS=" -Wc,-pthread"], | |
196 | [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS" | |
197 | AC_LINK_IFELSE( | |
198 | [AC_LANG_PROGRAM( | |
199 | [#include <pthread.h> | |
200 | void *g(void *d) { return NULL; }], | |
201 | [pthread_t t; pthread_create(&t,NULL,g,NULL);])], | |
202 | [], | |
203 | [AC_MSG_ERROR([Pthreads are required to build libgomp])])]) | |
204 | esac | |
953ff289 | 205 | |
6103184e AM |
206 | if test x$libgomp_use_pthreads != xno; then |
207 | AC_DEFINE(LIBGOMP_USE_PTHREADS, 1, | |
208 | [Define to 1 if libgomp should use POSIX threads.]) | |
209 | fi | |
210 | ||
41dbbb37 | 211 | m4_include([plugin/configfrag.ac]) |
85c64bbe | 212 | |
953ff289 | 213 | # Check for functions needed. |
976e44e3 | 214 | AC_CHECK_FUNCS(getloadavg clock_gettime strtoull) |
953ff289 | 215 | |
d349482e AT |
216 | # Check for broken semaphore implementation on darwin. |
217 | # sem_init returns: sem_init error: Function not implemented. | |
218 | case "$host" in | |
219 | *-darwin*) | |
220 | AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1, | |
221 | Define if the POSIX Semaphores do not work on your system.) | |
222 | ;; | |
223 | esac | |
224 | ||
13c41b2e SH |
225 | # RTEMS specific checks |
226 | case "$host" in | |
227 | *-*-rtems*) | |
228 | AC_CHECK_TYPES([struct _Mutex_Control],[],[],[#include <sys/lock.h>]) | |
229 | ;; | |
230 | esac | |
231 | ||
0f3e711e JJ |
232 | GCC_LINUX_FUTEX(:) |
233 | ||
a0884cf0 JJ |
234 | # Check for pthread_{,attr_}[sg]etaffinity_np. |
235 | AC_LINK_IFELSE( | |
236 | [AC_LANG_PROGRAM( | |
237 | [#define _GNU_SOURCE | |
238 | #include <pthread.h>], | |
239 | [cpu_set_t cpuset; | |
240 | pthread_attr_t attr; | |
241 | pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); | |
242 | if (CPU_ISSET (0, &cpuset)) | |
243 | CPU_SET (1, &cpuset); | |
244 | else | |
245 | CPU_ZERO (&cpuset); | |
246 | pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); | |
247 | pthread_attr_init (&attr); | |
248 | pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset); | |
249 | pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])], | |
250 | AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1, | |
251 | [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.])) | |
252 | ||
953ff289 DN |
253 | # At least for glibc, clock_gettime is in librt. But don't pull that |
254 | # in if it still doesn't give us the function we want. | |
255 | if test $ac_cv_func_clock_gettime = no; then | |
256 | AC_CHECK_LIB(rt, clock_gettime, | |
257 | [LIBS="-lrt $LIBS" | |
c663e301 | 258 | AC_DEFINE(HAVE_CLOCK_GETTIME, 1, |
953ff289 DN |
259 | [Define to 1 if you have the `clock_gettime' function.])]) |
260 | fi | |
261 | ||
262 | # See if we support thread-local storage. | |
60e1758f | 263 | GCC_CHECK_TLS |
953ff289 | 264 | |
f50eecba VR |
265 | # See if we have emulated thread-local storage. |
266 | GCC_CHECK_EMUTLS | |
267 | ||
451c19c4 | 268 | # See what sort of export controls are available. |
953ff289 DN |
269 | LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY |
270 | LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT | |
271 | LIBGOMP_CHECK_ATTRIBUTE_ALIAS | |
272 | LIBGOMP_ENABLE_SYMVERS | |
273 | ||
a68ab351 JJ |
274 | if test $enable_symvers = gnu; then |
275 | AC_DEFINE(LIBGOMP_GNU_SYMBOL_VERSIONING, 1, | |
276 | [Define to 1 if GNU symbol versioning is used for libgomp.]) | |
277 | fi | |
278 | ||
953ff289 DN |
279 | # Get target configury. |
280 | . ${srcdir}/configure.tgt | |
281 | CFLAGS="$save_CFLAGS $XCFLAGS" | |
282 | ||
283 | # Check for __sync_val_compare_and_swap, but only after the target has | |
284 | # had a chance to set XCFLAGS. | |
285 | LIBGOMP_CHECK_SYNC_BUILTINS | |
286 | ||
287 | XCFLAGS="$XCFLAGS$XPCFLAGS" | |
288 | ||
289 | AC_SUBST(config_path) | |
290 | AC_SUBST(XCFLAGS) | |
291 | AC_SUBST(XLDFLAGS) | |
292 | ||
293 | # Cleanup and exit. | |
294 | CFLAGS="$save_CFLAGS" | |
295 | AC_CACHE_SAVE | |
296 | ||
297 | if test ${multilib} = yes; then | |
298 | multilib_arg="--enable-multilib" | |
299 | else | |
300 | multilib_arg= | |
301 | fi | |
302 | ||
303 | # Set up the set of libraries that we need to link against for libgomp. | |
de14871c | 304 | # Note that the GOMP_SELF_SPEC in gcc.c may force -pthread, |
953ff289 DN |
305 | # which will force linkage against -lpthread (or equivalent for the system). |
306 | # That's not 100% ideal, but about the best we can do easily. | |
307 | if test $enable_shared = yes; then | |
308 | link_gomp="-lgomp %{static: $LIBS}" | |
309 | else | |
310 | link_gomp="-lgomp $LIBS" | |
311 | fi | |
312 | AC_SUBST(link_gomp) | |
313 | ||
314 | AM_CONDITIONAL([USE_FORTRAN], [test "$ac_cv_fc_compiler_gnu" = yes]) | |
315 | ||
03b8fe49 PB |
316 | # ??? 2006-01-24: Paulo committed to asking autoconf folk to document |
317 | # and export AC_COMPUTE_INT. If that happens, then we'll need to remove | |
318 | # the underscore here and update the PREREQ. If it doesn't, then we'll | |
319 | # need to copy this macro to our acinclude.m4. | |
320 | save_CFLAGS="$CFLAGS" | |
321 | for i in $config_path; do | |
322 | if test -f $srcdir/config/$i/omp-lock.h; then | |
a68ab351 | 323 | CFLAGS="$CFLAGS -include confdefs.h -include $srcdir/config/$i/omp-lock.h" |
03b8fe49 PB |
324 | break |
325 | fi | |
326 | done | |
327 | ||
328 | _AC_COMPUTE_INT([sizeof (omp_lock_t)], [OMP_LOCK_SIZE],, | |
329 | [AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_t)])]) | |
330 | _AC_COMPUTE_INT([__alignof (omp_lock_t)], [OMP_LOCK_ALIGN]) | |
331 | _AC_COMPUTE_INT([sizeof (omp_nest_lock_t)], [OMP_NEST_LOCK_SIZE]) | |
332 | _AC_COMPUTE_INT([__alignof (omp_nest_lock_t)], [OMP_NEST_LOCK_ALIGN]) | |
a68ab351 JJ |
333 | _AC_COMPUTE_INT([sizeof (omp_lock_25_t)], [OMP_LOCK_25_SIZE],, |
334 | [AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_25_t)])]) | |
335 | _AC_COMPUTE_INT([__alignof (omp_lock_25_t)], [OMP_LOCK_25_ALIGN]) | |
336 | _AC_COMPUTE_INT([sizeof (omp_nest_lock_25_t)], [OMP_NEST_LOCK_25_SIZE]) | |
337 | _AC_COMPUTE_INT([__alignof (omp_nest_lock_25_t)], [OMP_NEST_LOCK_25_ALIGN]) | |
03b8fe49 PB |
338 | |
339 | # If the lock fits in an integer, then arrange for Fortran to use that | |
340 | # integer. If it doesn't, then arrange for Fortran to use a pointer. | |
341 | # Except that we don't have a way at present to multi-lib the installed | |
342 | # Fortran modules, so we assume 8 bytes for pointers, regardless of the | |
343 | # actual target. | |
344 | OMP_LOCK_KIND=$OMP_LOCK_SIZE | |
345 | OMP_NEST_LOCK_KIND=$OMP_NEST_LOCK_SIZE | |
346 | if test $OMP_LOCK_SIZE -gt 8 || test $OMP_LOCK_ALIGN -gt $OMP_LOCK_SIZE; then | |
347 | OMP_LOCK_KIND=8 | |
348 | fi | |
349 | if test $OMP_NEST_LOCK_SIZE -gt 8 || test $OMP_NEST_LOCK_ALIGN -gt $OMP_NEST_LOCK_SIZE; then | |
350 | OMP_NEST_LOCK_KIND=8 | |
351 | fi | |
a68ab351 JJ |
352 | OMP_LOCK_25_KIND=$OMP_LOCK_25_SIZE |
353 | OMP_NEST_LOCK_25_KIND=$OMP_NEST_LOCK_25_SIZE | |
354 | if test $OMP_LOCK_25_SIZE -gt 8 || test $OMP_LOCK_25_ALIGN -gt $OMP_LOCK_25_SIZE; then | |
355 | OMP_LOCK_25_KIND=8 | |
356 | fi | |
357 | if test $OMP_NEST_LOCK_25_SIZE -gt 8 || test $OMP_NEST_LOCK_25_ALIGN -gt $OMP_NEST_LOCK_25_SIZE; then | |
358 | OMP_NEST_LOCK_25_KIND=8 | |
359 | fi | |
03b8fe49 PB |
360 | |
361 | AC_SUBST(OMP_LOCK_SIZE) | |
362 | AC_SUBST(OMP_LOCK_ALIGN) | |
363 | AC_SUBST(OMP_NEST_LOCK_SIZE) | |
364 | AC_SUBST(OMP_NEST_LOCK_ALIGN) | |
365 | AC_SUBST(OMP_LOCK_KIND) | |
366 | AC_SUBST(OMP_NEST_LOCK_KIND) | |
a68ab351 JJ |
367 | AC_SUBST(OMP_LOCK_25_SIZE) |
368 | AC_SUBST(OMP_LOCK_25_ALIGN) | |
369 | AC_SUBST(OMP_NEST_LOCK_25_SIZE) | |
370 | AC_SUBST(OMP_NEST_LOCK_25_ALIGN) | |
371 | AC_SUBST(OMP_LOCK_25_KIND) | |
372 | AC_SUBST(OMP_NEST_LOCK_25_KIND) | |
03b8fe49 PB |
373 | CFLAGS="$save_CFLAGS" |
374 | ||
375 | AC_CONFIG_FILES(omp.h omp_lib.h omp_lib.f90 libgomp_f.h) | |
953ff289 | 376 | AC_CONFIG_FILES(Makefile testsuite/Makefile libgomp.spec) |
41dbbb37 | 377 | AC_CONFIG_FILES([testsuite/libgomp-test-support.pt.exp:testsuite/libgomp-test-support.exp.in]) |
953ff289 | 378 | AC_OUTPUT |