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-rw-r--r--src/globals.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/globals.h b/src/globals.h
index 8e5ad76..cf83758 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1,3 +1,6 @@
+#ifndef _MARKET_SIM_H_
+#define _MARKET_SIM_H_
+
#include <assert.h>
#include <ctype.h>
#include <stdbool.h>
@@ -104,3 +107,5 @@ void debug_init(void);
#endif
void do_menu(struct player_t*, const struct command_t*, uint len, const char *prompt);
+
+#endif