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-rw-r--r--src/vppinfra/socket.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vppinfra/socket.c b/src/vppinfra/socket.c
index 32260614942..3271393529d 100644
--- a/src/vppinfra/socket.c
+++ b/src/vppinfra/socket.c
@@ -38,6 +38,7 @@
#include <stdio.h>
#include <string.h> /* strchr */
#define __USE_GNU
+#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
@@ -54,6 +55,11 @@
#include <vppinfra/format.h>
#include <vppinfra/error.h>
+#ifndef __GLIBC__
+/* IPPORT_USERRESERVED is not part of musl libc. */
+#define IPPORT_USERRESERVED 5000
+#endif
+
__clib_export void
clib_socket_tx_add_formatted (clib_socket_t * s, char *fmt, ...)
{