From 7118009b526746039a07a43e3239d24fbededf4e Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Sat, 20 Jan 2024 15:35:43 -0800
Subject: Avoid macro redefinition.

---
 timer/include/timer.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/timer/include/timer.h b/timer/include/timer.h
index b65f8d4..94781d6 100644
--- a/timer/include/timer.h
+++ b/timer/include/timer.h
@@ -9,7 +9,9 @@ typedef uint64_t time_point;
 // Need to macro to make CLOCK_REALTIME available when compiling with ISO C11.
 // The constant is only needed in the source file, but the header file needs to
 // include time.h too.
+#ifndef __USE_POSIX199309
 #define __USE_POSIX199309
+#endif //
 #include <time.h>
 typedef struct timespec time_point;
 #endif
-- 
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