Index: trunk/psLib/configure.ac
===================================================================
--- trunk/psLib/configure.ac	(revision 10949)
+++ trunk/psLib/configure.ac	(revision 10950)
@@ -84,4 +84,6 @@
 AC_LANG(C)
 AC_PROG_CC
+dnl _GNU_SOURCE is needed for atleast strcasestr() with glibc
+AC_GNU_SOURCE
 
 dnl enable largefile supports