diff -urN pvfs-2.6.0.orig/maint/config/rt.m4 pvfs-2.6.0/maint/config/rt.m4
--- pvfs-2.6.0.orig/maint/config/rt.m4	2006-12-10 23:16:47.000000000 -0800
+++ pvfs-2.6.0/maint/config/rt.m4	2006-12-10 23:36:17.000000000 -0800
@@ -12,7 +12,7 @@
 	[lio_listio(LIO_NOWAIT, NULL, 0, NULL);],
 	[AC_MSG_RESULT(no)],
 	[
-		LDFLAGS="$LDFLAGS -lrt"
+		LIBS="$LIBS -lrt"
 		AC_TRY_LINK(
 			[#include <stdlib.h>
 			 #include <unistd.h>