--- a/configure.ac	2009-01-31 13:59:36.000000000 +0100
+++ b/configure.ac	2009-01-31 14:01:06.000000000 +0100
@@ -29,6 +29,7 @@
 # ========== export compiler / linker options ======== #
 AC_SUBST(CFLAGS)
 AC_SUBST(CPPFLAGS)
+AC_SUBST(LIBS)
 AC_SUBST(LDFLAGS)
 
 # ============== look for dependencies =============== #
@@ -170,7 +171,7 @@
                 AC_CHECK_LIB(X11, XOpenDisplay, [ HAVE_X11=true ]))
 	# can't embed next AC_CHECK_HEADERS in true case of AC_CHECK_LIB
 	if test "${HAVE_X11}" = "true"; then
-	        LDFLAGS="${LDFLAGS} -lX11 -lXext"
+	        LIBS="${LIBS} -lX11 -lXext"
 		# need to specifically include X11/Xlib header when
 		# doing checks for NVCtrl headers
 	        AC_CHECK_HEADERS(NVCtrl/NVCtrl.h NVCtrl/NVCtrlLib.h, [ HAVE_NVIDIA=true ], [],