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-rw-r--r--games/battlestar/externs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/games/battlestar/externs.h b/games/battlestar/externs.h
index ab7f020334d..2a0ef58f3d0 100644
--- a/games/battlestar/externs.h
+++ b/games/battlestar/externs.h
@@ -35,6 +35,7 @@
* @(#)externs.h 8.1 (Berkeley) 5/31/93
*/
+#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>