upstream: http://scim.svn.sourceforge.net/viewvc/scim?view=rev&revision=259
origin: the original patch was prepared by Jari Aalto <jari.aalto@cante.net> for the Debian distribution
        http://bugs.debian.org/560486

Index: scim-1.4.9/src/ltdl.cpp
===================================================================
--- scim-1.4.9.orig/src/ltdl.cpp	2010-01-17 02:39:44.000000000 +0100
+++ scim-1.4.9/src/ltdl.cpp	2010-01-17 02:39:54.000000000 +0100
@@ -3361,7 +3361,7 @@
 {
   lt_dlhandle	handle		= 0;
   char *	tmp		= 0;
-  char *	ext		= 0;
+  const char *	ext		= 0;
   size_t	len;
   int		errors		= 0;