1 files changed, 1 insertions, 1 deletions
diff --git a/trap.c b/trap.c
index edce31a..d1cdedf 100644
--- a/trap.c
+++ b/trap.c
@@ -52,7 +52,7 @@
 #endif
 
 #ifndef errno
-extern int errno;
+#include <errno.h>
 #endif
 
 /* Flags which describe the current handling state of a signal. */