1 # Copyright (C) 2011-2016, Intel Corporation
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions
8 # * Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # * Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in
12 # the documentation and/or other materials provided with the
14 # * Neither the name of Intel Corporation nor the names of its
15 # contributors may be used to endorse or promote products derived
16 # from this software without specific prior written permission.
18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
25 # OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
28 # WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 # POSSIBILITY OF SUCH DAMAGE.
31 # *********************************************************************
33 # PLEASE NOTE: This file is a downstream copy of a file mainitained in
34 # a repository at cilkplus.org. Changes made to this file that are not
35 # submitted through the contribution process detailed at
36 # http://www.cilkplus.org/submit-cilk-contribution will be lost the next
37 # time that a new version is released. Changes only submitted to the
38 # GNU compiler collection or posted to the git repository at
39 # https://bitbucket.org/intelcilkruntime/intel-cilk-runtime.git are
42 # We welcome your contributions to this open source project. Thank you
43 # for your assistance in helping us improve Cilk Plus.
45 AC_INIT([Cilk Runtime Library], [2.0], [cilk@intel.com])
48 # Needed to define ${target}. Needs to be very early to avoid annoying
49 # warning about calling AC_ARG_PROGRAM before AC_CANONICAL_SYSTEM
51 target_alias=${target_alias-$host_alias}
52 AC_SUBST(target_alias)
54 AM_INIT_AUTOMAKE(foreign no-dist)
58 AM_ENABLE_MULTILIB(, ..)
60 # Test for GNU extensions. Will define _GNU_SOURCE if they're available
61 AC_USE_SYSTEM_EXTENSIONS
63 # Build a DLL on Windows
64 # AC_LIBTOOL_WIN32_DLL
68 # AC_CONFIG_MACRO_DIR([..])
69 AC_CONFIG_FILES([Makefile libcilkrts.spec])
72 # Check whether the target supports protected visibility.
74 CFLAGS="$CFLAGS -Werror"
75 AC_TRY_COMPILE([void __attribute__((visibility("protected"))) foo(void) { }],
76 [], libcilkrts_cv_have_attribute_visibility=yes,
77 libcilkrts_cv_have_attribute_visibility=no)
79 if test $libcilkrts_cv_have_attribute_visibility = yes; then
80 AC_DEFINE(HAVE_ATTRIBUTE_VISIBILITY, 1,
81 [Define to 1 if the target supports __attribute__((visibility(...))).])
84 # Get target configury.
85 . ${srcdir}/configure.tgt
86 if test -n "$UNSUPPORTED"; then
87 AC_MSG_ERROR([Configuration ${target} is unsupported.])
90 if test "${multilib}" = "yes"; then
91 multilib_arg="--enable-multilib"
96 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
97 AC_ARG_ENABLE([version-specific-runtime-libs],
98 AC_HELP_STRING([--enable-version-specific-runtime-libs],
99 [Specify that runtime libraries should be installed in a compi
100 ler-specific directory]),
101 [case "$enableval" in
102 yes) enable_version_specific_runtime_libs=yes ;;
103 no) enable_version_specific_runtime_libs=no ;;
104 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs
107 [enable_version_specific_runtime_libs=no])
108 AC_MSG_RESULT($enable_version_specific_runtime_libs)
111 # Calculate toolexeclibdir
112 # Also toolexecdir, though it's only used in toolexeclibdir
113 case ${enable_version_specific_runtime_libs} in
115 # Need the gcc compiler version to know where to install libraries
116 # and header files if --enable-version-specific-runtime-libs option
118 toolexecdir='$(libdir)/gcc/$(target_alias)'
119 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
122 if test -n "$with_cross_host" &&
123 test x"$with_cross_host" != x"no"; then
124 # Install a library built with a cross compiler in tooldir, not libdir.
125 toolexecdir='$(exec_prefix)/$(target_alias)'
126 toolexeclibdir='$(toolexecdir)/lib'
128 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
129 toolexeclibdir='$(libdir)'
131 multi_os_directory=`$CC -print-multi-os-directory`
132 case $multi_os_directory in
133 .) ;; # Avoid trailing /.
134 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
139 # Set config_dir based on the target. config_dir specifies where to get
140 # target-specific files. The generic implementation is incomplete, but
141 # contains information on what's needed
163 # We have linker scripts for appropriate operating systems
164 linux_linker_script=no
167 linux_linker_script=yes
170 AM_CONDITIONAL(LINUX_LINKER_SCRIPT, test "$linux_linker_script" = "yes")
175 mac_linker_script=yes
178 AM_CONDITIONAL(MAC_LINKER_SCRIPT, test "$mac_linker_script" = "yes")
182 AC_SUBST(toolexecdir)
183 AC_SUBST(toolexeclibdir)
185 AC_SUBST(lt_cv_dlopen_libs)
187 # Check to see if -pthread or -lpthread is needed. Prefer the former.
188 # Note that the CILK_SELF_SPEC in gcc.c may force -pthread.
189 # In case the pthread.h system header is not found, this test will fail.
192 CFLAGS="$CFLAGS -pthread"
195 [#include <pthread.h>
196 void *g(void *d) { return NULL; }],
197 [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
198 [XCFLAGS=" -Wc,-pthread"],
199 [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
202 [#include <pthread.h>
203 void *g(void *d) { return NULL; }],
204 [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
206 [AC_MSG_ERROR([Pthreads are required to build libcilkrts])])])
208 # Check for pthread_{,attr_}[sg]etaffinity_np.
211 [#include <pthread.h>],
214 pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
215 if (CPU_ISSET (0, &cpuset))
216 CPU_SET (1, &cpuset);
219 pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
220 pthread_attr_init (&attr);
221 pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);
222 pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])],
223 AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1,
224 [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.]))
226 # Every c++ lib is linking by default with -nostdlib, which leads to the
227 # fact, that proper pthread library will not be given at link time. We have
232 XLDFLAGS="$XLDFLAGS -lc"
235 XLDFLAGS="$XLDFLAGS -lpthread"
243 CFLAGS="$save_CFLAGS"
245 if test $enable_shared = yes; then
246 link_cilkrts="-lcilkrts %{static: $LIBS}"
248 link_cilkrts="-lcilkrts $LIBS"
250 AC_SUBST(link_cilkrts)