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-rw-r--r--source/fitz/draw-blend.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/source/fitz/draw-blend.c b/source/fitz/draw-blend.c
index e8d71932..f4a9fe96 100644
--- a/source/fitz/draw-blend.c
+++ b/source/fitz/draw-blend.c
@@ -1,6 +1,10 @@
#include "mupdf/fitz.h"
#include "draw-imp.h"
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+
/* PDF 1.4 blend modes. These are slow. */
typedef unsigned char byte;