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-rw-r--r--src/system/fd_util.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/system/fd_util.h b/src/system/fd_util.h
index b73a2012f..3c72890e1 100644
--- a/src/system/fd_util.h
+++ b/src/system/fd_util.h
@@ -42,10 +42,6 @@
#include <stddef.h>
#ifndef WIN32
-#if !defined(_GNU_SOURCE) && (defined(HAVE_PIPE2) || defined(HAVE_ACCEPT4))
-#define _GNU_SOURCE
-#endif
-
#include <sys/types.h>
#endif