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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 | ||
f1f3453e | 4 | AC_INIT([GNU Offloading and Multi Processing Runtime Library], 1.0,,[libgomp]) |
953ff289 DN |
5 | AC_CONFIG_HEADER(config.h) |
6 | ||
7 | # ------- | |
8 | # Options | |
9 | # ------- | |
10 | ||
11 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
12 | LIBGOMP_ENABLE(version-specific-runtime-libs, no, , | |
13 | [Specify that runtime libraries should be installed in a compiler-specific directory], | |
14 | permit yes|no) | |
15 | AC_MSG_RESULT($enable_version_specific_runtime_libs) | |
16 | ||
3721b9e1 DF |
17 | # We would like our source tree to be readonly. However when releases or |
18 | # pre-releases are generated, the flex/bison generated files as well as the | |
19 | # various formats of manuals need to be included along with the rest of the | |
20 | # sources. Therefore we have --enable-generated-files-in-srcdir to do | |
21 | # just that. | |
22 | AC_MSG_CHECKING([for --enable-generated-files-in-srcdir]) | |
23 | LIBGOMP_ENABLE(generated-files-in-srcdir, no, , | |
24 | [put copies of generated files in source dir intended for creating source | |
25 | tarballs for users without texinfo bison or flex.], | |
26 | permit yes|no) | |
27 | AC_MSG_RESULT($enable_generated_files_in_srcdir) | |
28 | AM_CONDITIONAL(GENINSRC, test "$enable_generated_files_in_srcdir" = yes) | |
29 | ||
30 | ||
953ff289 DN |
31 | # ------- |
32 | # ------- | |
33 | ||
34 | # Gets build, host, target, *_vendor, *_cpu, *_os, etc. | |
35 | # | |
36 | # You will slowly go insane if you do not grok the following fact: when | |
37 | # building this library, the top-level /target/ becomes the library's /host/. | |
38 | # | |
39 | # configure then causes --target to default to --host, exactly like any | |
40 | # other package using autoconf. Therefore, 'target' and 'host' will | |
41 | # always be the same. This makes sense both for native and cross compilers | |
42 | # just think about it for a little while. :-) | |
43 | # | |
44 | # Also, if this library is being configured as part of a cross compiler, the | |
45 | # top-level configure script will pass the "real" host as $with_cross_host. | |
46 | # | |
47 | # Do not delete or change the following two lines. For why, see | |
48 | # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html | |
49 | AC_CANONICAL_SYSTEM | |
50 | target_alias=${target_alias-$host_alias} | |
51 | ||
52 | # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the | |
53 | # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. | |
54 | # 1.9.0: minimum required version | |
55 | # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch | |
56 | # of other PACKAGE_* variables will, however, and there's nothing | |
57 | # we can do about that; they come from AC_INIT). | |
58 | # foreign: we don't follow the normal rules for GNU packages (no COPYING | |
59 | # file in the top srcdir, etc, etc), so stop complaining. | |
13917ae3 | 60 | # no-dist: we don't want 'dist' and related rules. |
953ff289 DN |
61 | # -Wall: turns on all automake warnings... |
62 | # -Wno-portability: ...except this one, since GNU make is required. | |
63 | # -Wno-override: ... and this one, since we do want this in testsuite. | |
13917ae3 | 64 | AM_INIT_AUTOMAKE([1.9.0 foreign no-dist -Wall -Wno-portability -Wno-override]) |
953ff289 DN |
65 | AM_ENABLE_MULTILIB(, ..) |
66 | ||
67 | # Calculate toolexeclibdir | |
68 | # Also toolexecdir, though it's only used in toolexeclibdir | |
69 | case ${enable_version_specific_runtime_libs} in | |
70 | yes) | |
71 | # Need the gcc compiler version to know where to install libraries | |
72 | # and header files if --enable-version-specific-runtime-libs option | |
73 | # is selected. | |
74 | toolexecdir='$(libdir)/gcc/$(target_alias)' | |
75 | toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' | |
76 | ;; | |
77 | no) | |
78 | if test -n "$with_cross_host" && | |
79 | test x"$with_cross_host" != x"no"; then | |
80 | # Install a library built with a cross compiler in tooldir, not libdir. | |
81 | toolexecdir='$(exec_prefix)/$(target_alias)' | |
82 | toolexeclibdir='$(toolexecdir)/lib' | |
83 | else | |
84 | toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
85 | toolexeclibdir='$(libdir)' | |
86 | fi | |
87 | multi_os_directory=`$CC -print-multi-os-directory` | |
88 | case $multi_os_directory in | |
89 | .) ;; # Avoid trailing /. | |
90 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; | |
91 | esac | |
92 | ;; | |
93 | esac | |
94 | AC_SUBST(toolexecdir) | |
95 | AC_SUBST(toolexeclibdir) | |
96 | ||
97 | # Check the compiler. | |
98 | # The same as in boehm-gc and libstdc++. Have to borrow it from there. | |
99 | # We must force CC to /not/ be precious variables; otherwise | |
100 | # the wrong, non-multilib-adjusted value will be used in multilibs. | |
101 | # As a side effect, we have to subst CFLAGS ourselves. | |
102 | ||
103 | m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) | |
104 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
105 | AC_PROG_CC | |
1b3b24c2 | 106 | m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
953ff289 DN |
107 | |
108 | AC_SUBST(CFLAGS) | |
109 | ||
110 | # In order to override CFLAGS_FOR_TARGET, all of our special flags go | |
111 | # in XCFLAGS. But we need them in CFLAGS during configury. So put them | |
112 | # in both places for now and restore CFLAGS at the end of config. | |
113 | save_CFLAGS="$CFLAGS" | |
114 | ||
115 | # Add -Wall -Werror if we are using GCC. | |
116 | if test "x$GCC" = "xyes"; then | |
117 | XCFLAGS="$XCFLAGS -Wall -Werror" | |
118 | fi | |
119 | ||
120 | # Find other programs we need. | |
121 | AC_CHECK_TOOL(AR, ar) | |
122 | AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) | |
123 | AC_PATH_PROG(PERL, perl, perl-not-found-in-path-error) | |
124 | AC_PROG_MAKE_SET | |
125 | AC_PROG_INSTALL | |
126 | ||
748b9d7c DF |
127 | # See if makeinfo has been installed and is modern enough |
128 | # that we can use it. | |
129 | ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], | |
130 | [GNU texinfo.* \([0-9][0-9.]*\)], | |
a7415017 | 131 | [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) |
748b9d7c DF |
132 | AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") |
133 | ||
134 | ||
953ff289 DN |
135 | # Configure libtool |
136 | AM_PROG_LIBTOOL | |
7de6ba7a | 137 | ACX_LT_HOST_FLAGS |
953ff289 DN |
138 | AC_SUBST(enable_shared) |
139 | AC_SUBST(enable_static) | |
140 | ||
c41303c6 RH |
141 | AM_MAINTAINER_MODE |
142 | ||
1ec601bf FXC |
143 | # Create a spec file, so that compile/link tests don't fail |
144 | test -f libgfortran.spec || touch libgfortran.spec | |
145 | FCFLAGS="$FCFLAGS -L." | |
146 | ||
953ff289 DN |
147 | # We need gfortran to compile parts of the library |
148 | # We can't use AC_PROG_FC because it expects a fully working gfortran. | |
149 | #AC_PROG_FC(gfortran) | |
0046b1a7 RW |
150 | case `echo $GFORTRAN` in |
151 | -* | no* ) | |
152 | FC=no ;; | |
153 | *) | |
2122aa97 PB |
154 | set dummy $GFORTRAN; ac_word=$2 |
155 | if test -x "$ac_word"; then | |
d0709b6a PB |
156 | FC="$GFORTRAN" |
157 | else | |
158 | FC=no | |
159 | fi ;; | |
0046b1a7 | 160 | esac |
953ff289 | 161 | AC_PROG_FC(gfortran) |
1ec601bf | 162 | FCFLAGS="$FCFLAGS -Wall -L../libgfortran" |
953ff289 DN |
163 | |
164 | # For libtool versioning info, format is CURRENT:REVISION:AGE | |
165 | libtool_VERSION=1:0:0 | |
166 | AC_SUBST(libtool_VERSION) | |
167 | ||
168 | # Check header files. | |
169 | AC_STDC_HEADERS | |
170 | AC_HEADER_TIME | |
a1b25e49 | 171 | ACX_HEADER_STRING |
6d9d1eeb | 172 | AC_CHECK_HEADERS(pthread.h unistd.h semaphore.h sys/loadavg.h sys/sysctl.h sys/time.h) |
953ff289 | 173 | |
18cbfd85 PB |
174 | GCC_HEADER_STDINT(gstdint.h) |
175 | ||
953ff289 | 176 | XPCFLAGS="" |
cd93945d SH |
177 | case "$host" in |
178 | *-*-rtems*) | |
179 | # RTEMS supports Pthreads, but the library is not available at GCC build time. | |
180 | ;; | |
44a7d18d TS |
181 | nvptx*-*-*) |
182 | # NVPTX does not support Pthreads, has its own code replacement. | |
6103184e | 183 | libgomp_use_pthreads=no |
9e38af5c AM |
184 | # NVPTX is an accelerator-only target |
185 | libgomp_offloaded_only=yes | |
44a7d18d | 186 | ;; |
cd93945d SH |
187 | *) |
188 | # Check to see if -pthread or -lpthread is needed. Prefer the former. | |
189 | # In case the pthread.h system header is not found, this test will fail. | |
190 | CFLAGS="$CFLAGS -pthread" | |
191 | AC_LINK_IFELSE( | |
192 | [AC_LANG_PROGRAM( | |
193 | [#include <pthread.h> | |
194 | void *g(void *d) { return NULL; }], | |
195 | [pthread_t t; pthread_create(&t,NULL,g,NULL);])], | |
196 | [XPCFLAGS=" -Wc,-pthread"], | |
197 | [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS" | |
198 | AC_LINK_IFELSE( | |
199 | [AC_LANG_PROGRAM( | |
200 | [#include <pthread.h> | |
201 | void *g(void *d) { return NULL; }], | |
202 | [pthread_t t; pthread_create(&t,NULL,g,NULL);])], | |
203 | [], | |
204 | [AC_MSG_ERROR([Pthreads are required to build libgomp])])]) | |
205 | esac | |
953ff289 | 206 | |
6103184e AM |
207 | if test x$libgomp_use_pthreads != xno; then |
208 | AC_DEFINE(LIBGOMP_USE_PTHREADS, 1, | |
209 | [Define to 1 if libgomp should use POSIX threads.]) | |
210 | fi | |
211 | ||
9e38af5c AM |
212 | if test x$libgomp_offloaded_only = xyes; then |
213 | AC_DEFINE(LIBGOMP_OFFLOADED_ONLY, 1, | |
214 | [Define to 1 if building libgomp for an accelerator-only target.]) | |
215 | fi | |
216 | ||
41dbbb37 | 217 | m4_include([plugin/configfrag.ac]) |
85c64bbe | 218 | |
953ff289 | 219 | # Check for functions needed. |
976e44e3 | 220 | AC_CHECK_FUNCS(getloadavg clock_gettime strtoull) |
953ff289 | 221 | |
d349482e AT |
222 | # Check for broken semaphore implementation on darwin. |
223 | # sem_init returns: sem_init error: Function not implemented. | |
224 | case "$host" in | |
225 | *-darwin*) | |
226 | AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1, | |
227 | Define if the POSIX Semaphores do not work on your system.) | |
228 | ;; | |
229 | esac | |
230 | ||
13c41b2e SH |
231 | # RTEMS specific checks |
232 | case "$host" in | |
233 | *-*-rtems*) | |
234 | AC_CHECK_TYPES([struct _Mutex_Control],[],[],[#include <sys/lock.h>]) | |
235 | ;; | |
236 | esac | |
237 | ||
0f3e711e JJ |
238 | GCC_LINUX_FUTEX(:) |
239 | ||
a0884cf0 JJ |
240 | # Check for pthread_{,attr_}[sg]etaffinity_np. |
241 | AC_LINK_IFELSE( | |
242 | [AC_LANG_PROGRAM( | |
243 | [#define _GNU_SOURCE | |
244 | #include <pthread.h>], | |
245 | [cpu_set_t cpuset; | |
246 | pthread_attr_t attr; | |
247 | pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); | |
248 | if (CPU_ISSET (0, &cpuset)) | |
249 | CPU_SET (1, &cpuset); | |
250 | else | |
251 | CPU_ZERO (&cpuset); | |
252 | pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); | |
253 | pthread_attr_init (&attr); | |
254 | pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset); | |
255 | pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])], | |
256 | AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1, | |
257 | [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.])) | |
258 | ||
953ff289 DN |
259 | # At least for glibc, clock_gettime is in librt. But don't pull that |
260 | # in if it still doesn't give us the function we want. | |
261 | if test $ac_cv_func_clock_gettime = no; then | |
262 | AC_CHECK_LIB(rt, clock_gettime, | |
263 | [LIBS="-lrt $LIBS" | |
c663e301 | 264 | AC_DEFINE(HAVE_CLOCK_GETTIME, 1, |
953ff289 DN |
265 | [Define to 1 if you have the `clock_gettime' function.])]) |
266 | fi | |
267 | ||
268 | # See if we support thread-local storage. | |
60e1758f | 269 | GCC_CHECK_TLS |
953ff289 | 270 | |
f50eecba VR |
271 | # See if we have emulated thread-local storage. |
272 | GCC_CHECK_EMUTLS | |
273 | ||
451c19c4 | 274 | # See what sort of export controls are available. |
953ff289 DN |
275 | LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY |
276 | LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT | |
277 | LIBGOMP_CHECK_ATTRIBUTE_ALIAS | |
278 | LIBGOMP_ENABLE_SYMVERS | |
279 | ||
a68ab351 JJ |
280 | if test $enable_symvers = gnu; then |
281 | AC_DEFINE(LIBGOMP_GNU_SYMBOL_VERSIONING, 1, | |
282 | [Define to 1 if GNU symbol versioning is used for libgomp.]) | |
283 | fi | |
284 | ||
953ff289 DN |
285 | # Get target configury. |
286 | . ${srcdir}/configure.tgt | |
287 | CFLAGS="$save_CFLAGS $XCFLAGS" | |
288 | ||
289 | # Check for __sync_val_compare_and_swap, but only after the target has | |
290 | # had a chance to set XCFLAGS. | |
291 | LIBGOMP_CHECK_SYNC_BUILTINS | |
292 | ||
293 | XCFLAGS="$XCFLAGS$XPCFLAGS" | |
294 | ||
efe33ced IT |
295 | # Add CET specific flags if CET is enabled |
296 | GCC_CET_FLAGS(CET_FLAGS) | |
297 | XCFLAGS="$XCFLAGS $CET_FLAGS" | |
298 | FCFLAGS="$FCFLAGS $CET_FLAGS" | |
299 | ||
953ff289 DN |
300 | AC_SUBST(config_path) |
301 | AC_SUBST(XCFLAGS) | |
302 | AC_SUBST(XLDFLAGS) | |
303 | ||
304 | # Cleanup and exit. | |
305 | CFLAGS="$save_CFLAGS" | |
306 | AC_CACHE_SAVE | |
307 | ||
308 | if test ${multilib} = yes; then | |
309 | multilib_arg="--enable-multilib" | |
310 | else | |
311 | multilib_arg= | |
312 | fi | |
313 | ||
314 | # Set up the set of libraries that we need to link against for libgomp. | |
de14871c | 315 | # Note that the GOMP_SELF_SPEC in gcc.c may force -pthread, |
953ff289 DN |
316 | # which will force linkage against -lpthread (or equivalent for the system). |
317 | # That's not 100% ideal, but about the best we can do easily. | |
318 | if test $enable_shared = yes; then | |
319 | link_gomp="-lgomp %{static: $LIBS}" | |
320 | else | |
321 | link_gomp="-lgomp $LIBS" | |
322 | fi | |
323 | AC_SUBST(link_gomp) | |
324 | ||
325 | AM_CONDITIONAL([USE_FORTRAN], [test "$ac_cv_fc_compiler_gnu" = yes]) | |
326 | ||
03b8fe49 PB |
327 | # ??? 2006-01-24: Paulo committed to asking autoconf folk to document |
328 | # and export AC_COMPUTE_INT. If that happens, then we'll need to remove | |
329 | # the underscore here and update the PREREQ. If it doesn't, then we'll | |
330 | # need to copy this macro to our acinclude.m4. | |
331 | save_CFLAGS="$CFLAGS" | |
332 | for i in $config_path; do | |
333 | if test -f $srcdir/config/$i/omp-lock.h; then | |
a68ab351 | 334 | CFLAGS="$CFLAGS -include confdefs.h -include $srcdir/config/$i/omp-lock.h" |
03b8fe49 PB |
335 | break |
336 | fi | |
337 | done | |
338 | ||
339 | _AC_COMPUTE_INT([sizeof (omp_lock_t)], [OMP_LOCK_SIZE],, | |
340 | [AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_t)])]) | |
341 | _AC_COMPUTE_INT([__alignof (omp_lock_t)], [OMP_LOCK_ALIGN]) | |
342 | _AC_COMPUTE_INT([sizeof (omp_nest_lock_t)], [OMP_NEST_LOCK_SIZE]) | |
343 | _AC_COMPUTE_INT([__alignof (omp_nest_lock_t)], [OMP_NEST_LOCK_ALIGN]) | |
a68ab351 JJ |
344 | _AC_COMPUTE_INT([sizeof (omp_lock_25_t)], [OMP_LOCK_25_SIZE],, |
345 | [AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_25_t)])]) | |
346 | _AC_COMPUTE_INT([__alignof (omp_lock_25_t)], [OMP_LOCK_25_ALIGN]) | |
347 | _AC_COMPUTE_INT([sizeof (omp_nest_lock_25_t)], [OMP_NEST_LOCK_25_SIZE]) | |
348 | _AC_COMPUTE_INT([__alignof (omp_nest_lock_25_t)], [OMP_NEST_LOCK_25_ALIGN]) | |
03b8fe49 PB |
349 | |
350 | # If the lock fits in an integer, then arrange for Fortran to use that | |
351 | # integer. If it doesn't, then arrange for Fortran to use a pointer. | |
352 | # Except that we don't have a way at present to multi-lib the installed | |
353 | # Fortran modules, so we assume 8 bytes for pointers, regardless of the | |
354 | # actual target. | |
355 | OMP_LOCK_KIND=$OMP_LOCK_SIZE | |
356 | OMP_NEST_LOCK_KIND=$OMP_NEST_LOCK_SIZE | |
357 | if test $OMP_LOCK_SIZE -gt 8 || test $OMP_LOCK_ALIGN -gt $OMP_LOCK_SIZE; then | |
358 | OMP_LOCK_KIND=8 | |
359 | fi | |
360 | if test $OMP_NEST_LOCK_SIZE -gt 8 || test $OMP_NEST_LOCK_ALIGN -gt $OMP_NEST_LOCK_SIZE; then | |
361 | OMP_NEST_LOCK_KIND=8 | |
362 | fi | |
a68ab351 JJ |
363 | OMP_LOCK_25_KIND=$OMP_LOCK_25_SIZE |
364 | OMP_NEST_LOCK_25_KIND=$OMP_NEST_LOCK_25_SIZE | |
365 | if test $OMP_LOCK_25_SIZE -gt 8 || test $OMP_LOCK_25_ALIGN -gt $OMP_LOCK_25_SIZE; then | |
366 | OMP_LOCK_25_KIND=8 | |
367 | fi | |
368 | if test $OMP_NEST_LOCK_25_SIZE -gt 8 || test $OMP_NEST_LOCK_25_ALIGN -gt $OMP_NEST_LOCK_25_SIZE; then | |
369 | OMP_NEST_LOCK_25_KIND=8 | |
370 | fi | |
03b8fe49 PB |
371 | |
372 | AC_SUBST(OMP_LOCK_SIZE) | |
373 | AC_SUBST(OMP_LOCK_ALIGN) | |
374 | AC_SUBST(OMP_NEST_LOCK_SIZE) | |
375 | AC_SUBST(OMP_NEST_LOCK_ALIGN) | |
376 | AC_SUBST(OMP_LOCK_KIND) | |
377 | AC_SUBST(OMP_NEST_LOCK_KIND) | |
a68ab351 JJ |
378 | AC_SUBST(OMP_LOCK_25_SIZE) |
379 | AC_SUBST(OMP_LOCK_25_ALIGN) | |
380 | AC_SUBST(OMP_NEST_LOCK_25_SIZE) | |
381 | AC_SUBST(OMP_NEST_LOCK_25_ALIGN) | |
382 | AC_SUBST(OMP_LOCK_25_KIND) | |
383 | AC_SUBST(OMP_NEST_LOCK_25_KIND) | |
03b8fe49 PB |
384 | CFLAGS="$save_CFLAGS" |
385 | ||
3c36aa6b JJ |
386 | # Determine what GCC version number to use in filesystem paths. |
387 | GCC_BASE_VER | |
388 | ||
03b8fe49 | 389 | AC_CONFIG_FILES(omp.h omp_lib.h omp_lib.f90 libgomp_f.h) |
953ff289 | 390 | AC_CONFIG_FILES(Makefile testsuite/Makefile libgomp.spec) |
41dbbb37 | 391 | AC_CONFIG_FILES([testsuite/libgomp-test-support.pt.exp:testsuite/libgomp-test-support.exp.in]) |
953ff289 | 392 | AC_OUTPUT |