1 files changed, 1 insertions, 0 deletions
diff --git a/common.h b/common.h
index 67a1c62..805ba0b 100644
--- a/common.h
+++ b/common.h
@@ -123,6 +123,7 @@ PURE_FUNCTION int doublepcmp(const void *avp, const void *bvp);
 
 
 #ifdef TEST
+#include <unistd.h>
 
 #if defined(__GNUC__) && !defined(__clang__)
 # pragma GCC diagnostic ignored "-Wunsuffixed-float-constants"