--- a/main.c	
+++ a/main.c	
@@ -10,6 +10,8 @@ 
 
 #include "sweep.h"
 
+DrawChars CharSet;
+
 int main(int argc, char** argv)
 {
 	GameStats* Game;
--- a/sweep.h.in	
+++ a/sweep.h.in	
@@ -245,7 +245,7 @@ struct FileBuf
 FILE* DebugLog;
 #endif /* DEBUG_LOG */
 
-DrawChars CharSet;
+extern DrawChars CharSet;
 
 /* These are the functions defined in files.c */
 int SourceHomeFile(GameStats* Game);