Add a sourcefile to contain the libz namespace pollution

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5677 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/Makefile.am

@@ -25,6 +25,7 @@ varnishd_SOURCES = \
 	cache_esi.c \
 	cache_expire.c \
 	cache_fetch.c \
+	cache_gzip.c \
 	cache_hash.c \
 	cache_http.c \
 	cache_httpconn.c \

bin/varnishd/cache_gzip.c

+/*-
+ * Copyright (c) 2011 Varnish Software AS
+ * All rights reserved.
+ *
+ * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Interaction with the linvgz (libz) library.
+ *
+ * The libz library pollutes namespace a LOT when you include the "zlib.h"
+ * file so we contain the damage by vectoring all access to libz through
+ * this source file.
+ *
+ * The API defined by this file, will also insulate the rest of the code,
+ * should we find a better gzip library at a later date.
+ */
+
+#include "config.h"
+
+#include "svnid.h"
+SVNID("$Id$")
+