Include unistd.h for getpid()

diff --git a/ext/zip/lib/mkstemp.c b/ext/zip/lib/mkstemp.c
index 2ccd3a48789eb9b3f0f46e5291e30358e05c711e..57d88484911b074549e18784062f6c03bb1744a7 100644 (file)
--- a/ext/zip/lib/mkstemp.c
+++ b/ext/zip/lib/mkstemp.c
@@ -43,6 +43,7 @@
 #endif
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #ifndef O_BINARY
 #define O_BINARY 0