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-rw-r--r--tests/lodepng.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tests/lodepng.h b/tests/lodepng.h
index 64ec2e3..a0a654f 100644
--- a/tests/lodepng.h
+++ b/tests/lodepng.h
@@ -1,3 +1,6 @@
+#ifndef LODEPNG_H_
+#define LODEPNG_H_
+
/*
LodePNG version 20110908
@@ -1891,3 +1894,6 @@ Account: lode dot vandevenne.
Copyright (c) 2005-2011 Lode Vandevenne
*/
+
+#endif
+
contact: Jan Huwald // Impressum