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-rw-r--r--ext/posix/posix.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/ext/posix/posix.c b/ext/posix/posix.c
index 5a2f352e41..5952a4d05b 100644
--- a/ext/posix/posix.c
+++ b/ext/posix/posix.c
@@ -34,11 +34,6 @@
#endif
#include <sys/resource.h>
-
-#if defined(_GNU_SOURCE) && !defined(__USE_GNU)
-# define __USE_GNU
-#endif
-
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/stat.h>