2 # Copyright (C) 2011-2013, Intel Corporation
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
10 # * Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # * Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in
14 # the documentation and/or other materials provided with the
16 # * Neither the name of Intel Corporation nor the names of its
17 # contributors may be used to endorse or promote products derived
18 # from this software without specific prior written permission.
21 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
28 # OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
31 # WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 # POSSIBILITY OF SUCH DAMAGE.
34 AC_INIT([Cilk Runtime Library], [2.0], [cilk@intel.com])
37 # Needed to define ${target}. Needs to be very early to avoid annoying
38 # warning about calling AC_ARG_PROGRAM before AC_CANONICAL_SYSTEM
40 target_alias=${target_alias-$host_alias}
41 AC_SUBST(target_alias)
42 AM_INIT_AUTOMAKE(foreign no-dist)
46 AM_ENABLE_MULTILIB(, ..)
48 # Build a DLL on Windows
49 # AC_LIBTOOL_WIN32_DLL
53 # AC_CONFIG_MACRO_DIR([..])
54 AC_CONFIG_FILES([Makefile libcilkrts.spec])
57 # Check whether the target supports protected visibility.
59 CFLAGS="$CFLAGS -Werror"
60 AC_TRY_COMPILE([void __attribute__((visibility("protected"))) foo(void) { }],
61 [], libcilkrts_cv_have_attribute_visibility=yes,
62 libcilkrts_cv_have_attribute_visibility=no)
64 if test $libcilkrts_cv_have_attribute_visibility = yes; then
65 AC_DEFINE(HAVE_ATTRIBUTE_VISIBILITY, 1,
66 [Define to 1 if the target supports __attribute__((visibility(...))).])
69 # Get target configury.
70 . ${srcdir}/configure.tgt
71 if test -n "$UNSUPPORTED"; then
72 AC_MSG_ERROR([Configuration ${target} is unsupported.])
75 if test "${multilib}" = "yes"; then
76 multilib_arg="--enable-multilib"
81 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
82 AC_ARG_ENABLE([version-specific-runtime-libs],
83 AC_HELP_STRING([--enable-version-specific-runtime-libs],
84 [Specify that runtime libraries should be installed in a compi
85 ler-specific directory]),
87 yes) enable_version_specific_runtime_libs=yes ;;
88 no) enable_version_specific_runtime_libs=no ;;
89 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs
92 [enable_version_specific_runtime_libs=no])
93 AC_MSG_RESULT($enable_version_specific_runtime_libs)
96 # Calculate toolexeclibdir
97 # Also toolexecdir, though it's only used in toolexeclibdir
98 case ${enable_version_specific_runtime_libs} in
100 # Need the gcc compiler version to know where to install libraries
101 # and header files if --enable-version-specific-runtime-libs option
103 toolexecdir='$(libdir)/gcc/$(target_alias)'
104 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
107 if test -n "$with_cross_host" &&
108 test x"$with_cross_host" != x"no"; then
109 # Install a library built with a cross compiler in tooldir, not libdir.
110 toolexecdir='$(exec_prefix)/$(target_alias)'
111 toolexeclibdir='$(toolexecdir)/lib'
113 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
114 toolexeclibdir='$(libdir)'
116 multi_os_directory=`$CC -print-multi-os-directory`
117 case $multi_os_directory in
118 .) ;; # Avoid trailing /.
119 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
124 # Set config_dir based on the target. config_dir specifies where to get
125 # target-specific files. The generic implementation is incomplete, but
126 # contains information on what's needed
144 # We have linker scripts for appropriate operating systems
145 linux_linker_script=no
148 linux_linker_script=yes
151 AM_CONDITIONAL(LINUX_LINKER_SCRIPT, test "$linux_linker_script" = "yes")
156 mac_linker_script=yes
159 AM_CONDITIONAL(MAC_LINKER_SCRIPT, test "$mac_linker_script" = "yes")
163 AC_SUBST(toolexecdir)
164 AC_SUBST(toolexeclibdir)
166 AC_SUBST(lt_cv_dlopen_libs)
168 # Check to see if -pthread or -lpthread is needed. Prefer the former.
169 # Note that the CILK_SELF_SPEC in gcc.c may force -pthread.
170 # In case the pthread.h system header is not found, this test will fail.
173 CFLAGS="$CFLAGS -pthread"
176 [#include <pthread.h>
177 void *g(void *d) { return NULL; }],
178 [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
179 [XCFLAGS=" -Wc,-pthread"],
180 [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
183 [#include <pthread.h>
184 void *g(void *d) { return NULL; }],
185 [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
187 [AC_MSG_ERROR([Pthreads are required to build libcilkrts])])])
189 # Check for pthread_{,attr_}[sg]etaffinity_np.
193 #include <pthread.h>],
196 pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
197 if (CPU_ISSET (0, &cpuset))
198 CPU_SET (1, &cpuset);
201 pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
202 pthread_attr_init (&attr);
203 pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);
204 pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])],
205 AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1,
206 [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.]))
208 # Every c++ lib is linking by default with -nostdlib, which leads to the
209 # fact, that proper pthread library will not be given at link time. We have
214 XLDFLAGS="$XLDFLAGS -lc"
217 XLDFLAGS="$XLDFLAGS -lpthread"
225 CFLAGS="$save_CFLAGS"
227 if test $enable_shared = yes; then
228 link_cilkrts="-lcilkrts %{static: $LIBS}"
230 link_cilkrts="-lcilkrts $LIBS"
232 AC_SUBST(link_cilkrts)