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-rw-r--r--system/include/gc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/system/include/gc.h b/system/include/gc.h
index 8c5a8989..a21fd410 100644
--- a/system/include/gc.h
+++ b/system/include/gc.h
@@ -1,6 +1,8 @@
/*
* Boehm-compatible GC API
*/
+#ifndef _GC_H_INCLUDED
+#define _GC_H_INCLUDED
#include <stdlib.h>
@@ -65,3 +67,4 @@ void GC_enable_incremental();
}
#endif
+#endif