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-rw-r--r--core/include/fxcodec/fx_codec_flate.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/core/include/fxcodec/fx_codec_flate.h b/core/include/fxcodec/fx_codec_flate.h
index eaecef49ca..a0d151d258 100644
--- a/core/include/fxcodec/fx_codec_flate.h
+++ b/core/include/fxcodec/fx_codec_flate.h
@@ -4,6 +4,9 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+#ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_FLATE_H_
+#define CORE_INCLUDE_FXCODEC_FX_CODEC_FLATE_H_
+
#include "third_party/zlib_v128/zlib.h"
#ifdef __cplusplus
@@ -26,3 +29,5 @@ void FPDFAPI_FlateEnd(void* context);
#ifdef __cplusplus
} // extern "C"
#endif
+
+#endif // CORE_INCLUDE_FXCODEC_FX_CODEC_FLATE_H_