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-rw-r--r--source/pdf/pdf-appearance.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/source/pdf/pdf-appearance.c b/source/pdf/pdf-appearance.c
index 829b5917..e421b8dc 100644
--- a/source/pdf/pdf-appearance.c
+++ b/source/pdf/pdf-appearance.c
@@ -1,5 +1,9 @@
+#include "mupdf/fitz.h"
#include "mupdf/pdf.h"
+#include <float.h>
+#include <math.h>
+
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_ADVANCES_H