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-rw-r--r--src/driver/slbt_driver_ctx.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/driver/slbt_driver_ctx.c b/src/driver/slbt_driver_ctx.c
index 5f5f609..8a1b0ec 100644
--- a/src/driver/slbt_driver_ctx.c
+++ b/src/driver/slbt_driver_ctx.c
@@ -4,6 +4,10 @@
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#endif
+
#include <stdint.h>
#include <unistd.h>
#include <fcntl.h>