--- GEOM_SRC_5.1.2.old/adm_local/unix/config_files/check_qt.m4	2009-07-06 13:46:48.000000000 +0200
+++ GEOM_SRC_5.1.2/adm_local/unix/config_files/check_qt.m4	2009-08-07 23:36:38.000000000 +0200
@@ -334,7 +334,7 @@
   LIBS_old=$LIBS
   if test "x$QTDIR" = "x/usr" || test "x$QTDIR" = "x/usr/lib/qt4"
   then
-    QT_LIB_DIR=""
+    QT_LIB_DIR="-L${QTDIR}/lib${LIB_LOCATION_SUFFIX}/qt4"
   elif test -d ${QTDIR}/lib; then
     QT_LIB_DIR="-L$QTDIR/lib"
   elif test -d ${QTDIR}/lib64; then