diff options
Diffstat (limited to 'gcc-4.9/libcilkrts/configure.ac')
| -rw-r--r-- | gcc-4.9/libcilkrts/configure.ac | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/gcc-4.9/libcilkrts/configure.ac b/gcc-4.9/libcilkrts/configure.ac index 61b45b007..fb215052d 100644 --- a/gcc-4.9/libcilkrts/configure.ac +++ b/gcc-4.9/libcilkrts/configure.ac @@ -49,7 +49,7 @@ AC_PROG_CC AC_PROG_CXX # AC_PROG_LIBTOOL # AC_CONFIG_MACRO_DIR([..]) -AC_CONFIG_FILES([Makefile]) +AC_CONFIG_FILES([Makefile libcilkrts.spec]) AM_ENABLE_MULTILIB(, ..) AC_FUNC_ALLOCA @@ -183,6 +183,32 @@ AC_LINK_IFELSE( AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1, [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.])) +# Check to see if -pthread or -lpthread is needed. Prefer the former. +# Note that the CILK_SELF_SPEC in gcc.c may force -pthread. +# In case the pthread.h system header is not found, this test will fail. +CFLAGS="$CFLAGS -pthread" +AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [#include <pthread.h> + void *g(void *d) { return NULL; }], + [pthread_t t; pthread_create(&t,NULL,g,NULL);])], + [], + [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS" + AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [#include <pthread.h> + void *g(void *d) { return NULL; }], + [pthread_t t; pthread_create(&t,NULL,g,NULL);])], + [], + [AC_MSG_ERROR([Pthreads are required to build libcilkrts])])]) + +if test $enable_shared = yes; then + link_cilkrts="-lcilkrts %{static: $LIBS}" +else + link_cilkrts="-lcilkrts $LIBS" +fi +AC_SUBST(link_cilkrts) + # Must be last AC_OUTPUT |