1 files changed, 1 insertions, 1 deletions
diff --git a/mksyntax.c b/mksyntax.c
index 0385686..449ff7c 100644
--- a/mksyntax.c
+++ b/mksyntax.c
@@ -37,7 +37,7 @@ extern int optind;
 extern char *optarg;
 
 #ifndef errno
-extern int errno;
+#include <errno.h>
 #endif
 
 #ifndef HAVE_STRERROR