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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgomp/] [configure.ac] - Blame information for rev 735

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1 735 jeremybenn
# Process this file with autoconf to produce a configure script, like so:
2
# aclocal -I ../config && autoconf && autoheader && automake
3
 
4
AC_PREREQ(2.64)
5
AC_INIT([GNU OpenMP Runtime Library], 1.0,,[libgomp])
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
 
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
 
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.
61
#  no-dist:  we don't want 'dist' and related rules.
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.
65
AM_INIT_AUTOMAKE([1.9.0 foreign no-dist -Wall -Wno-portability -Wno-override])
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
107
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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
 
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.* \([0-9][0-9.]*\)],
132
                   [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
133
AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
134
 
135
 
136
# Configure libtool
137
AM_PROG_LIBTOOL
138
ACX_LT_HOST_FLAGS
139
AC_SUBST(enable_shared)
140
AC_SUBST(enable_static)
141
 
142
AM_MAINTAINER_MODE
143
 
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
 
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)
151
case `echo $GFORTRAN` in
152
  -* | no* )
153
    FC=no ;;
154
  *)
155
    set dummy $GFORTRAN; ac_word=$2
156
    if test -x "$ac_word"; then
157
      FC="$GFORTRAN"
158
    else
159
      FC=no
160
    fi ;;
161
esac
162
AC_PROG_FC(gfortran)
163
FCFLAGS="$FCFLAGS -Wall -L../libgfortran"
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
172
ACX_HEADER_STRING
173
AC_CHECK_HEADERS(unistd.h semaphore.h sys/loadavg.h sys/time.h sys/time.h)
174
 
175
GCC_HEADER_STDINT(gstdint.h)
176
 
177
# Check to see if -pthread or -lpthread is needed.  Prefer the former.
178
# In case the pthread.h system header is not found, this test will fail.
179
XPCFLAGS=""
180
CFLAGS="$CFLAGS -pthread"
181
AC_LINK_IFELSE(
182
 [AC_LANG_PROGRAM(
183
  [#include 
184
   void *g(void *d) { return NULL; }],
185
  [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
186
 [XPCFLAGS=" -Wc,-pthread"],
187
 [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
188
  AC_LINK_IFELSE(
189
   [AC_LANG_PROGRAM(
190
    [#include 
191
     void *g(void *d) { return NULL; }],
192
    [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
193
   [],
194
   [AC_MSG_ERROR([Pthreads are required to build libgomp])])])
195
 
196
# Check for functions needed.
197
AC_CHECK_FUNCS(getloadavg clock_gettime strtoull)
198
 
199
# Check for broken semaphore implementation on darwin.
200
# sem_init returns: sem_init error: Function not implemented.
201
case "$host" in
202
  *-darwin*)
203
    AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
204
        Define if the POSIX Semaphores do not work on your system.)
205
    ;;
206
esac
207
 
208
GCC_LINUX_FUTEX(:)
209
 
210
# Check for pthread_{,attr_}[sg]etaffinity_np.
211
AC_LINK_IFELSE(
212
 [AC_LANG_PROGRAM(
213
  [#define _GNU_SOURCE
214
   #include ],
215
  [cpu_set_t cpuset;
216
   pthread_attr_t attr;
217
   pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
218
   if (CPU_ISSET (0, &cpuset))
219
     CPU_SET (1, &cpuset);
220
   else
221
     CPU_ZERO (&cpuset);
222
   pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
223
   pthread_attr_init (&attr);
224
   pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);
225
   pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])],
226
  AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1,
227
[       Define if pthread_{,attr_}{g,s}etaffinity_np is supported.]))
228
 
229
# At least for glibc, clock_gettime is in librt.  But don't pull that
230
# in if it still doesn't give us the function we want.
231
if test $ac_cv_func_clock_gettime = no; then
232
  AC_CHECK_LIB(rt, clock_gettime,
233
    [LIBS="-lrt $LIBS"
234
     AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
235
               [Define to 1 if you have the `clock_gettime' function.])])
236
fi
237
 
238
# See if we support thread-local storage.
239
GCC_CHECK_TLS
240
 
241
# See what sort of export controls are availible.
242
LIBGOMP_CHECK_ATTRIBUTE_VISIBILITY
243
LIBGOMP_CHECK_ATTRIBUTE_DLLEXPORT
244
LIBGOMP_CHECK_ATTRIBUTE_ALIAS
245
LIBGOMP_ENABLE_SYMVERS
246
 
247
if test $enable_symvers = gnu; then
248
  AC_DEFINE(LIBGOMP_GNU_SYMBOL_VERSIONING, 1,
249
            [Define to 1 if GNU symbol versioning is used for libgomp.])
250
fi
251
 
252
# Get target configury.
253
. ${srcdir}/configure.tgt
254
CFLAGS="$save_CFLAGS $XCFLAGS"
255
 
256
# Check for __sync_val_compare_and_swap, but only after the target has
257
# had a chance to set XCFLAGS.
258
LIBGOMP_CHECK_SYNC_BUILTINS
259
 
260
XCFLAGS="$XCFLAGS$XPCFLAGS"
261
 
262
AC_SUBST(config_path)
263
AC_SUBST(XCFLAGS)
264
AC_SUBST(XLDFLAGS)
265
 
266
# Cleanup and exit.
267
CFLAGS="$save_CFLAGS"
268
AC_CACHE_SAVE
269
 
270
if test ${multilib} = yes; then
271
  multilib_arg="--enable-multilib"
272
else
273
  multilib_arg=
274
fi
275
 
276
# Set up the set of libraries that we need to link against for libgomp.
277
# Note that the GOMP_SELF_SPEC in gcc.c will force -pthread for -fopenmp,
278
# which will force linkage against -lpthread (or equivalent for the system).
279
# That's not 100% ideal, but about the best we can do easily.
280
if test $enable_shared = yes; then
281
  link_gomp="-lgomp %{static: $LIBS}"
282
else
283
  link_gomp="-lgomp $LIBS"
284
fi
285
AC_SUBST(link_gomp)
286
 
287
AM_CONDITIONAL([USE_FORTRAN], [test "$ac_cv_fc_compiler_gnu" = yes])
288
 
289
# ??? 2006-01-24: Paulo committed to asking autoconf folk to document
290
# and export AC_COMPUTE_INT.  If that happens, then we'll need to remove
291
# the underscore here and update the PREREQ.  If it doesn't, then we'll
292
# need to copy this macro to our acinclude.m4.
293
save_CFLAGS="$CFLAGS"
294
for i in $config_path; do
295
  if test -f $srcdir/config/$i/omp-lock.h; then
296
    CFLAGS="$CFLAGS -include confdefs.h -include $srcdir/config/$i/omp-lock.h"
297
    break
298
  fi
299
done
300
 
301
_AC_COMPUTE_INT([sizeof (omp_lock_t)], [OMP_LOCK_SIZE],,
302
  [AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_t)])])
303
_AC_COMPUTE_INT([__alignof (omp_lock_t)], [OMP_LOCK_ALIGN])
304
_AC_COMPUTE_INT([sizeof (omp_nest_lock_t)], [OMP_NEST_LOCK_SIZE])
305
_AC_COMPUTE_INT([__alignof (omp_nest_lock_t)], [OMP_NEST_LOCK_ALIGN])
306
_AC_COMPUTE_INT([sizeof (omp_lock_25_t)], [OMP_LOCK_25_SIZE],,
307
  [AC_MSG_ERROR([unsupported system, cannot find sizeof (omp_lock_25_t)])])
308
_AC_COMPUTE_INT([__alignof (omp_lock_25_t)], [OMP_LOCK_25_ALIGN])
309
_AC_COMPUTE_INT([sizeof (omp_nest_lock_25_t)], [OMP_NEST_LOCK_25_SIZE])
310
_AC_COMPUTE_INT([__alignof (omp_nest_lock_25_t)], [OMP_NEST_LOCK_25_ALIGN])
311
 
312
# If the lock fits in an integer, then arrange for Fortran to use that
313
# integer.  If it doesn't, then arrange for Fortran to use a pointer.
314
# Except that we don't have a way at present to multi-lib the installed
315
# Fortran modules, so we assume 8 bytes for pointers, regardless of the
316
# actual target.
317
OMP_LOCK_KIND=$OMP_LOCK_SIZE
318
OMP_NEST_LOCK_KIND=$OMP_NEST_LOCK_SIZE
319
if test $OMP_LOCK_SIZE -gt 8 || test $OMP_LOCK_ALIGN -gt $OMP_LOCK_SIZE; then
320
  OMP_LOCK_KIND=8
321
fi
322
if test $OMP_NEST_LOCK_SIZE -gt 8 || test $OMP_NEST_LOCK_ALIGN -gt $OMP_NEST_LOCK_SIZE; then
323
  OMP_NEST_LOCK_KIND=8
324
fi
325
OMP_LOCK_25_KIND=$OMP_LOCK_25_SIZE
326
OMP_NEST_LOCK_25_KIND=$OMP_NEST_LOCK_25_SIZE
327
if test $OMP_LOCK_25_SIZE -gt 8 || test $OMP_LOCK_25_ALIGN -gt $OMP_LOCK_25_SIZE; then
328
  OMP_LOCK_25_KIND=8
329
fi
330
if test $OMP_NEST_LOCK_25_SIZE -gt 8 || test $OMP_NEST_LOCK_25_ALIGN -gt $OMP_NEST_LOCK_25_SIZE; then
331
  OMP_NEST_LOCK_25_KIND=8
332
fi
333
 
334
AC_SUBST(OMP_LOCK_SIZE)
335
AC_SUBST(OMP_LOCK_ALIGN)
336
AC_SUBST(OMP_NEST_LOCK_SIZE)
337
AC_SUBST(OMP_NEST_LOCK_ALIGN)
338
AC_SUBST(OMP_LOCK_KIND)
339
AC_SUBST(OMP_NEST_LOCK_KIND)
340
AC_SUBST(OMP_LOCK_25_SIZE)
341
AC_SUBST(OMP_LOCK_25_ALIGN)
342
AC_SUBST(OMP_NEST_LOCK_25_SIZE)
343
AC_SUBST(OMP_NEST_LOCK_25_ALIGN)
344
AC_SUBST(OMP_LOCK_25_KIND)
345
AC_SUBST(OMP_NEST_LOCK_25_KIND)
346
CFLAGS="$save_CFLAGS"
347
 
348
AC_CONFIG_FILES(omp.h omp_lib.h omp_lib.f90 libgomp_f.h)
349
AC_CONFIG_FILES(Makefile testsuite/Makefile libgomp.spec)
350
AC_OUTPUT

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