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-rw-r--r--postproc/swscale.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/postproc/swscale.c b/postproc/swscale.c
index cefff839eb..05f07d0444 100644
--- a/postproc/swscale.c
+++ b/postproc/swscale.c
@@ -53,6 +53,7 @@ untested special converters
#include <string.h>
#include <math.h>
#include <stdio.h>
+#include <unistd.h>
#include "../config.h"
#include "../mangle.h"
#include <assert.h>