check for self-assignment in operator=

[wxWidgets.git] / wx-config-inplace.in

diff --git a/wx-config-inplace.in b/wx-config-inplace.in
index 1ffb80da62f1148799d3ed91603c0a79369d355a..a95d45f30f1bdf5ba708622af43a072c2a85cf83 100644 (file)
--- a/wx-config-inplace.in
+++ b/wx-config-inplace.in
@@ -3,7 +3,7 @@
 # Name:        wx-config-inplace
 # Purpose:     wx configuration in tree search and query tool
 # Author:      Ron <ron@debian.org>
-# Modified by:
+# Modified by: VZ on 2005-09-20 to make it work with Bourne shell
 # Created:     14/9/2004
 # RCS-ID:      $Id$
 # Copyright:   (c) 2004 Ron <ron@debian.org>
@@ -27,7 +27,13 @@ check_dirname()
 # set the variables which allow the real wx-config to check if we're using it
 # in place or after installation
 this_prefix=`check_dirname "@abs_top_srcdir@"`
+if [ "x$this_prefix" = "x" ]; then
+    exit 1
+fi
 this_exec_prefix=`check_dirname "@abs_top_builddir@"`
+if [ "x$this_exec_prefix" = "x" ]; then
+    exit 1
+fi
 
 . "$this_exec_prefix/lib/wx/config/@TOOLCHAIN_FULLNAME@"