http://bugzilla.gnome.org/show_bug.cgi?id=489798
Prevent creating of invalid alone "-L" if subversion development files are
present, but svn-config does not exist.
================================================================================
--- configure.in
+++ configure.in
@@ -1020,7 +1020,11 @@
 
 if test -n "$SVN_INCLUDE" ; then
 	SVN_INCLUDE="-I$SVN_INCLUDE $APR_INCLUDE"
-	SVN_LIB="-L$SVN_LIB $APR_LIBS -lsvn_client-1 -lsvn_subr-1"
+	if test x != "x$SVN_LIB" ; then
+	    SVN_LIB="-L$SVN_LIB $APR_LIBS -lsvn_client-1 -lsvn_subr-1"
+	else
+	    SVN_LIB="$APR_LIBS -lsvn_client-1 -lsvn_subr-1"
+	fi
 	SVN_CFLAGS="$APR_CFLAGS"
 fi