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-rw-r--r--rts/posix/OSThreads.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/rts/posix/OSThreads.c b/rts/posix/OSThreads.c
index 44cda2626d..5b5b736703 100644
--- a/rts/posix/OSThreads.c
+++ b/rts/posix/OSThreads.c
@@ -32,6 +32,9 @@
#if defined(netbsd_HOST_OS)
#define _NETBSD_SOURCE 1
#endif
+#if defined(linux_HOST_OS)
+#define _GNU_SOURCE 1
+#endif
#include "Rts.h"