[Chicken-hackers] [PATCH 1/1] Add _XOPEN_SOURCE feature test macro

[Evan Hanson]

This provides access to strptime(3) from <time.h>, which is otherwise
undefined on at least Cygwin and possibly other platforms.
---
 chicken.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/chicken.h b/chicken.h
index 4ae93e09..dec79aa3 100644
--- a/chicken.h
+++ b/chicken.h
@@ -47,6 +47,10 @@
 # define __C99FEATURES__
 #endif
 
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE
+#endif
+
 #ifndef _BSD_SOURCE
 # define _BSD_SOURCE
 #endif
-- 
2.11.0