diff -uNr OpenCASCADE6.3.0-old/ros/configure.in OpenCASCADE6.3.0/ros/configure.in
--- OpenCASCADE6.3.0-old/ros/configure.in	2008-10-02 23:51:27.000000000 +0200
+++ OpenCASCADE6.3.0/ros/configure.in	2008-10-02 23:55:10.000000000 +0200
@@ -12,7 +12,7 @@
 
 AM_CONFIG_HEADER(config.h)
 
-dnl AM_MAINTAINER_MODE
+AM_MAINTAINER_MODE
 
 AC_AIX
 AC_ISC_POSIX