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-rw-r--r--winsup/cygwin/include/endian.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/winsup/cygwin/include/endian.h b/winsup/cygwin/include/endian.h
index d59d2c89b..960e61c3d 100644
--- a/winsup/cygwin/include/endian.h
+++ b/winsup/cygwin/include/endian.h
@@ -12,6 +12,7 @@ details. */
#define _ENDIAN_H_
#include <sys/config.h>
+#include <sys/cdefs.h>
#include <bits/endian.h>
/*#ifdef __USE_BSD*/
@@ -27,7 +28,7 @@ details. */
# define __LONG_LONG_PAIR(HI, LO) HI, LO
#endif
-#if /*defined __USE_BSD ||*/ ! defined _POSIX_SOURCE
+#if __BSD_VISIBLE
#include <byteswap.h>
@@ -71,7 +72,7 @@ details. */
#endif /*__BYTE_ORDER == __BIG_ENDIAN*/
-#endif /*__USE_BSD || !_POSIX_SOURCE*/
+#endif /*__BSD_VISIBLE*/
#endif /*_ENDIAN_H_*/