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[shibboleth/cpp-xmltooling.git] / m4 / acx_pthread.m4

diff --git a/acx_pthread.m4 b/m4/acx_pthread.m4
similarity index 97%
rename from acx_pthread.m4
rename to m4/acx_pthread.m4
index 33f1d29..4e9c8cb 100644 (file)
--- a/acx_pthread.m4
+++ b/m4/acx_pthread.m4
@@ -86,8 +86,7 @@
 
 AC_DEFUN([ACX_PTHREAD], [
 AC_REQUIRE([AC_CANONICAL_HOST])
-AC_LANG_SAVE
-AC_LANG_C
+AC_LANG_PUSH([C])
 acx_pthread_ok=no
 
 # We used to check for pthread.h first, but this fails if pthread.h
@@ -200,11 +199,9 @@ for flag in $acx_pthread_flags; do
         # pthread_cleanup_push because it is one of the few pthread
         # functions on Solaris that doesn't have a non-functional libc stub.
         # We try pthread_create on general principles.
-        AC_TRY_LINK([#include <pthread.h>],
-                    [pthread_t th; pthread_join(th, 0);
+        AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[pthread_t th; pthread_join(th, 0);
                      pthread_attr_init(0); pthread_cleanup_push(0, 0);
-                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
-                    [acx_pthread_ok=yes])
+                     pthread_create(0,0,0,0); pthread_cleanup_pop(0); ]])],[acx_pthread_ok=yes],[])
 
         LIBS="$save_LIBS"
         CFLAGS="$save_CFLAGS"
@@ -230,8 +227,7 @@ if test "x$acx_pthread_ok" = xyes; then
        AC_MSG_CHECKING([for joinable pthread attribute])
        attr_name=unknown
        for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-           AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
-                        [attr_name=$attr; break])
+           AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], [[int attr=$attr; return attr;]])],[attr_name=$attr; break],[])
        done
         AC_MSG_RESULT($attr_name)
         if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
@@ -283,5 +279,5 @@ else
         acx_pthread_ok=no
         $2
 fi
-AC_LANG_RESTORE
+AC_LANG_POP
 ])dnl ACX_PTHREAD