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-rw-r--r--tests/realtimeGC/cmain.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/realtimeGC/cmain.c b/tests/realtimeGC/cmain.c
index e9a46d7ce..0d4bb096a 100644
--- a/tests/realtimeGC/cmain.c
+++ b/tests/realtimeGC/cmain.c
@@ -1,8 +1,8 @@
-
 #ifdef WIN
 #include <windows.h>
 #else
 #include <dlfcn.h>
+#include <unistd.h> /* for sleep(3) */
 #endif
 #include <stdio.h>
 #include <stdlib.h>