Avoid the gcc warning
		../../libXpm-3.5.7/cxpm/cxpm.c:102: warning: no previous prototype for 'ErrorMessage'

	There are still quite a few warnings
		function declaration isn't a prototype

	libXpm is one of the libraries that still could need ANSIfication,
	I'd offer some help if you tell me to do so.

diff -ur libXpm-3.5.7.orig/cxpm/cxpm.c libXpm-3.5.7/cxpm/cxpm.c
--- libXpm-3.5.7.orig/cxpm/cxpm.c	2007-06-27 22:39:29.000000000 +0200
+++ libXpm-3.5.7/cxpm/cxpm.c	2008-10-03 17:17:25.000000000 +0200
@@ -94,7 +94,7 @@
 #include "Attrib.c"
 #include "Image.c"
 
-void
+static void
 ErrorMessage(
     int ErrorStatus,
     xpmData *data)