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-rw-r--r--rts/posix/OSThreads.c3
-rw-r--r--rts/posix/ticker/Pthread.c3
2 files changed, 6 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"
diff --git a/rts/posix/ticker/Pthread.c b/rts/posix/ticker/Pthread.c
index a4c7af588f..9200ff8318 100644
--- a/rts/posix/ticker/Pthread.c
+++ b/rts/posix/ticker/Pthread.c
@@ -55,6 +55,9 @@
#include <string.h>
+#if defined(linux_HOST_OS)
+#define _GNU_SOURCE 1
+#endif
#include <pthread.h>
#if defined(HAVE_PTHREAD_NP_H)
#include <pthread_np.h>