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-rw-r--r--src/pty-unix.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/pty-unix.c b/src/pty-unix.c
index cf2fe0d..e21b3bb 100644
--- a/src/pty-unix.c
+++ b/src/pty-unix.c
@@ -1,4 +1,5 @@
#define _XOPEN_SOURCE 600
+#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>