1 files changed, 1 insertions, 1 deletions
diff --git a/subst.c b/subst.c
index 9e8447a..6773331 100644
--- a/subst.c
+++ b/subst.c
@@ -63,7 +63,7 @@
 #include <glob/strmatch.h>
 
 #if !defined (errno)
-extern int errno;
+#include <errno.h>
 #endif /* !errno */
 
 /* The size that strings change by. */