diff -Nru scim-1.4.9.orig/src/ltdl.cpp scim-1.4.9/src/ltdl.cpp
--- scim-1.4.9.orig/src/ltdl.cpp	2008-11-02 07:42:40.000000000 +0100
+++ scim-1.4.9/src/ltdl.cpp	2009-06-15 02:09:57.000000000 +0200
@@ -3373,7 +3373,7 @@
   assert (filename);
 
   len = LT_STRLEN (filename);
-  ext = strrchr (filename, '.');
+  ext = strrchr ((char*)filename, '.');
 
   /* If FILENAME already bears a suitable extension, there is no need
      to try appending additional extensions.  */