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-rw-r--r--src/zlib/inftrees.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/zlib/inftrees.h b/src/zlib/inftrees.h
index baa53a0..14429f3 100644
--- a/src/zlib/inftrees.h
+++ b/src/zlib/inftrees.h
@@ -8,6 +8,9 @@
subject to change. Applications should only use zlib.h.
*/
+#ifndef __INFTREES_H_
+#define __INFTREES_H_
+
/* Structure for decoding tables. Each entry provides either the
information needed to do the operation requested by the code that
indexed that table entry, or it provides a pointer to another
@@ -60,3 +63,5 @@ typedef enum {
int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
unsigned codes, code FAR * FAR *table,
unsigned FAR *bits, unsigned short FAR *work));
+
+#endif // __INFTREES_H_