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Diffstat (limited to 'src/libunixonacid/unixmessage_sender_flush.c')
-rw-r--r--src/libunixonacid/unixmessage_sender_flush.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libunixonacid/unixmessage_sender_flush.c b/src/libunixonacid/unixmessage_sender_flush.c
index 5c5ad2b..a115c58 100644
--- a/src/libunixonacid/unixmessage_sender_flush.c
+++ b/src/libunixonacid/unixmessage_sender_flush.c
@@ -1,6 +1,9 @@
/* ISC license. */
+#ifndef _XPG4_2
#define _XPG4_2
+#endif
+
#include <skalibs/sysdeps.h>
#include <skalibs/nonposix.h>
#include <sys/socket.h>