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-rw-r--r--c/src/exec/rtems/headers/signal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/c/src/exec/rtems/headers/signal.h b/c/src/exec/rtems/headers/signal.h
index 2b247762e9..c9424a2dfd 100644
--- a/c/src/exec/rtems/headers/signal.h
+++ b/c/src/exec/rtems/headers/signal.h
@@ -73,7 +73,9 @@ rtems_status_code rtems_signal_send(
rtems_signal_set signal_set
);
+#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/rtems/signalmp.h>
+#endif
#ifdef __cplusplus
}