Fixed the sem test to work on systems with semtimedop.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2414 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/configure.in b/configure.in
index e83ff8f..fc4e7b0 100644
--- a/configure.in
+++ b/configure.in
@@ -345,7 +345,7 @@
 AC_FUNC_MMAP
 AC_TYPE_SIGNAL
 
-AC_CHECK_FUNCS([floor memchr memset mkdir strchr strdup strpbrk strrchr strstr])
+AC_CHECK_FUNCS([floor memchr memset mkdir strchr strdup strpbrk strrchr strstr semtimedop])
 
 AC_OUTPUT(
    Makefile