--- error.h.orig	2009-05-04 21:50:26.000000000 +0200
+++ error.h	2009-05-04 21:50:32.000000000 +0200
@@ -13,4 +13,4 @@
   files in the program, then also delete it here.
 */
 
-void error_exit(char *format, ...);
+void error_exit(const char *format, ...);
--- error.cpp.orig	2009-05-04 21:50:34.000000000 +0200
+++ error.cpp	2009-05-04 21:50:38.000000000 +0200
@@ -6,7 +6,7 @@
 #include <signal.h>
 #include <string.h>
 
-void error_exit(char *format, ...)
+void error_exit(const char *format, ...)
 {
 	va_list ap;