X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=ucw%2Fcrc.h;h=73363ddb77ca17ea91552a85b177a18ecdf04917;hb=244c4fe7e6cf5ae78cbe6343fe7f9b6dfc29b11a;hp=a5134267cf1e5e0bffc18bca0eafc63f167e2328;hpb=f22fe2e1dde82925771f4ef565ba8c09cfc458c0;p=libucw.git

diff --git a/ucw/crc.h b/ucw/crc.h
index a5134267..73363ddb 100644
--- a/ucw/crc.h
+++ b/ucw/crc.h
@@ -16,6 +16,9 @@
  *	Adapted for LibUCW by Martin Mares <mj@ucw.cz> in 2012.
  */
 
+#ifndef _UCW_CRC_H
+#define _UCW_CRC_H
+
 /**
  * Internal CRC calculator context.
  * You should use it just as an opaque handle only.
@@ -65,3 +68,5 @@ static inline u32 crc32_final(crc32_context *ctx)
  *  return crc32_final(&ctx);
  */
 u32 crc32_hash_buffer(const byte *buf, uns len);
+
+#endif