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-rw-r--r--src/core/iomgr/resolve_address.c2
-rw-r--r--src/core/iomgr/socket_utils_linux.c2
-rw-r--r--src/core/iomgr/socket_utils_posix.c1
-rw-r--r--src/core/iomgr/tcp_server_posix.c6
4 files changed, 9 insertions, 2 deletions
diff --git a/src/core/iomgr/resolve_address.c b/src/core/iomgr/resolve_address.c
index 01681168ce..575f884d91 100644
--- a/src/core/iomgr/resolve_address.c
+++ b/src/core/iomgr/resolve_address.c
@@ -31,7 +31,9 @@
*
*/
+#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE
+#endif
#include "src/core/iomgr/sockaddr.h"
#include "src/core/iomgr/resolve_address.h"
diff --git a/src/core/iomgr/socket_utils_linux.c b/src/core/iomgr/socket_utils_linux.c
index f971cb33bc..7ef58940c2 100644
--- a/src/core/iomgr/socket_utils_linux.c
+++ b/src/core/iomgr/socket_utils_linux.c
@@ -31,7 +31,9 @@
*
*/
+#ifndef _GNU_SOURCE
#define _GNU_SOURCE
+#endif
#include <grpc/support/port_platform.h>
#ifdef GPR_LINUX
diff --git a/src/core/iomgr/socket_utils_posix.c b/src/core/iomgr/socket_utils_posix.c
index 06c5033d45..9184b2a47c 100644
--- a/src/core/iomgr/socket_utils_posix.c
+++ b/src/core/iomgr/socket_utils_posix.c
@@ -35,7 +35,6 @@
#ifdef GPR_POSIX_SOCKETUTILS
-#define _BSD_SOURCE
#include "src/core/iomgr/socket_utils_posix.h"
#include <fcntl.h>
diff --git a/src/core/iomgr/tcp_server_posix.c b/src/core/iomgr/tcp_server_posix.c
index d169d23271..091f0aab1a 100644
--- a/src/core/iomgr/tcp_server_posix.c
+++ b/src/core/iomgr/tcp_server_posix.c
@@ -31,11 +31,15 @@
*
*/
+/* FIXME: "posix" files shouldn't be depending on _GNU_SOURCE */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
#include <grpc/support/port_platform.h>
#ifdef GPR_POSIX_SOCKET
-#define _GNU_SOURCE
#include "src/core/iomgr/tcp_server.h"
#include <limits.h>