libcilkrts/configure.ac

   1 #  @copyright
   2 #  Copyright (C) 2011-2013, Intel Corporation
   3 #  All rights reserved.
   4 #
   5 #  @copyright
   6 #  Redistribution and use in source and binary forms, with or without
   7 #  modification, are permitted provided that the following conditions
   8 #  are met:
   9 #
  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
  15 #      distribution.
  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.
  19 #
  20 #  @copyright
  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.
  33
  34 AC_INIT([Cilk Runtime Library], [2.0], [cilk@intel.com])
  35 AC_PREREQ([2.64])
  36
  37 # Needed to define ${target}.  Needs to be very early to avoid annoying
  38 # warning about calling AC_ARG_PROGRAM before AC_CANONICAL_SYSTEM
  39 AC_CANONICAL_SYSTEM
  40 target_alias=${target_alias-$host_alias}
  41 AC_SUBST(target_alias)
  42 AM_INIT_AUTOMAKE(foreign no-dist)
  43
  44 AM_MAINTAINER_MODE
  45
  46 AM_ENABLE_MULTILIB(, ..)
  47
  48 # Build a DLL on Windows
  49 # AC_LIBTOOL_WIN32_DLL
  50 AC_PROG_CC
  51 AC_PROG_CXX
  52 # AC_PROG_LIBTOOL
  53 # AC_CONFIG_MACRO_DIR([..])
  54 AC_CONFIG_FILES([Makefile libcilkrts.spec])
  55 AC_FUNC_ALLOCA
  56
  57 # Check whether the target supports protected visibility.
  58 save_CFLAGS="$CFLAGS"
  59 CFLAGS="$CFLAGS -Werror"
  60 AC_TRY_COMPILE([void __attribute__((visibility("protected"))) foo(void) { }],
  61                [], libcilkrts_cv_have_attribute_visibility=yes,
  62                libcilkrts_cv_have_attribute_visibility=no)
  63 CFLAGS="$save_CFLAGS"
  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(...))).])
  67 fi
  68
  69 # Get target configury.
  70 . ${srcdir}/configure.tgt
  71 if test -n "$UNSUPPORTED"; then
  72    AC_MSG_ERROR([Configuration ${target} is unsupported.])
  73 fi
  74
  75 if test "${multilib}" = "yes"; then
  76   multilib_arg="--enable-multilib"
  77 else
  78   multilib_arg=
  79 fi
  80
  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]),
  86   [case "$enableval" in
  87     yes) enable_version_specific_runtime_libs=yes ;;
  88     no)  enable_version_specific_runtime_libs=no ;;
  89     *)   AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs
  90 ]);;
  91    esac],
  92   [enable_version_specific_runtime_libs=no])
  93 AC_MSG_RESULT($enable_version_specific_runtime_libs)
  94
  95
  96 # Calculate toolexeclibdir
  97 # Also toolexecdir, though it's only used in toolexeclibdir
  98 case ${enable_version_specific_runtime_libs} in
  99   yes)
 100     # Need the gcc compiler version to know where to install libraries
 101     # and header files if --enable-version-specific-runtime-libs option
 102     # is selected.
 103     toolexecdir='$(libdir)/gcc/$(target_alias)'
 104     toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
 105     ;;
 106   no)
 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='$(toolexecdir)/lib'
 112     else
 113       toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
 114       toolexeclibdir='$(libdir)'
 115     fi
 116     multi_os_directory=`$CC -print-multi-os-directory`
 117     case $multi_os_directory in
 118       .) ;; # Avoid trailing /.
 119       *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
 120     esac
 121     ;;
 122 esac
 123
 124 # Set config_dir based on the target.  config_dir specifies where to get
 125 # target-specific files.  The generic implementation is incomplete, but
 126 # contains information on what's needed
 127 case "${target}" in
 128
 129   x86_64-*-*)
 130     config_dir="x86"
 131     ;;
 132
 133   i?86-*-*)
 134     config_dir="x86"
 135     ;;
 136
 137   *)
 138     config_dir="generic"
 139     ;;
 140
 141 esac
 142 AC_SUBST(config_dir)
 143
 144 # We have linker scripts for appropriate operating systems
 145 linux_linker_script=no
 146 case "${host}" in
 147     *-*-linux*)
 148         linux_linker_script=yes
 149         ;;
 150 esac
 151 AM_CONDITIONAL(LINUX_LINKER_SCRIPT, test "$linux_linker_script" = "yes")
 152
 153 mac_linker_script=no
 154 case "${host}" in
 155     *-*-apple*)
 156         mac_linker_script=yes
 157         ;;
 158 esac
 159 AM_CONDITIONAL(MAC_LINKER_SCRIPT, test "$mac_linker_script" = "yes")
 160
 161 AC_LIBTOOL_DLOPEN
 162 AM_PROG_LIBTOOL
 163 AC_SUBST(toolexecdir)
 164 AC_SUBST(toolexeclibdir)
 165
 166 AC_SUBST(lt_cv_dlopen_libs)
 167
 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.
 171 XCFLAGS=""
 172 XLDFLAGS=""
 173 CFLAGS="$CFLAGS -pthread"
 174 AC_LINK_IFELSE(
 175  [AC_LANG_PROGRAM(
 176   [#include <pthread.h>
 177    void *g(void *d) { return NULL; }],
 178   [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
 179  [XCFLAGS=" -Wc,-pthread"],
 180  [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
 181   AC_LINK_IFELSE(
 182    [AC_LANG_PROGRAM(
 183     [#include <pthread.h>
 184      void *g(void *d) { return NULL; }],
 185     [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
 186    [],
 187    [AC_MSG_ERROR([Pthreads are required to build libcilkrts])])])
 188
 189 # Check for pthread_{,attr_}[sg]etaffinity_np.
 190 AC_LINK_IFELSE(
 191  [AC_LANG_PROGRAM(
 192   [#define _GNU_SOURCE
 193    #include <pthread.h>],
 194   [cpu_set_t cpuset;
 195    pthread_attr_t attr;
 196    pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
 197    if (CPU_ISSET (0, &cpuset))
 198      CPU_SET (1, &cpuset);
 199    else
 200      CPU_ZERO (&cpuset);
 201    pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
 202    pthread_attr_init (&attr);
 203    pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);
 204    pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])],
 205   AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1,
 206 [       Define if pthread_{,attr_}{g,s}etaffinity_np is supported.]))
 207
 208 # Every c++ lib is linking by default with -nostdlib, which leads to the
 209 # fact, that proper pthread library will not be given at link time. We have
 210 # to hard-code that.
 211 case "${target}" in
 212
 213   *android*)
 214     XLDFLAGS="$XLDFLAGS -lc"
 215      ;;
 216   *)
 217     XLDFLAGS="$XLDFLAGS -lpthread"
 218     ;;
 219
 220 esac
 221
 222 AC_SUBST(XCFLAGS)
 223 AC_SUBST(XLDFLAGS)
 224
 225 CFLAGS="$save_CFLAGS"
 226
 227 if test $enable_shared = yes; then
 228   link_cilkrts="-lcilkrts %{static: $LIBS}"
 229 else
 230   link_cilkrts="-lcilkrts $LIBS"
 231 fi
 232 AC_SUBST(link_cilkrts)
 233
 234
 235 # Must be last
 236 AC_OUTPUT