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authorAndy Polyakov <appro@openssl.org>2018-06-29 18:46:57 +0200
committerAndy Polyakov <appro@openssl.org>2018-07-01 12:05:54 +0200
commita0e53000a8d2f464c5a49e93abaa606e67d7558e (patch)
tree22aa1f2275d50a5ab4069524edce6a0e54507df5 /crypto/rand/rand_unix.c
parentce5eb5e8149d8d03660575f4b8504c993851988a (diff)
rand/rand_unix.c: address macro redifinition warning.
Occasionally, e.g. when compiling for elderly glibc, you end up passing -D_GNU_SOURCE on command line, and doing so triggered warning... Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/6616)
Diffstat (limited to 'crypto/rand/rand_unix.c')
-rw-r--r--crypto/rand/rand_unix.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/rand/rand_unix.c b/crypto/rand/rand_unix.c
index b64cf27825..f482de063a 100644
--- a/crypto/rand/rand_unix.c
+++ b/crypto/rand/rand_unix.c
@@ -7,7 +7,9 @@
* https://www.openssl.org/source/license.html
*/
-#define _GNU_SOURCE
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
#include "e_os.h"
#include <stdio.h>
#include "internal/cryptlib.h"