2010-03-22 Joel Sherrill <joel.sherrill@oarcorp.com>

	* ChangeLog.zlib, FAQ, Makefile.am, README, adler32.c, compress.c,
	crc32.c, deflate.c, deflate.h, infback.c, inffast.c, inflate.c,
	inflate.h, inftrees.c, inftrees.h, trees.c, uncompr.c, zconf.h,
	zlib.3, zlib.h, zutil.c, zutil.h: Update to zlib 1.2.4.
	* gzclose.c, gzguts.h, gzlib.c, gzread.c, gzwrite.c, doc/algorithm.txt:
	New files.
	* algorithm.txt, gzio.c: Removed.

1 files changed, 25 insertions, 0 deletions

diff --git a/cpukit/zlib/gzclose.c b/cpukit/zlib/gzclose.c
new file mode 100644
index 0000000000..caeb99a317
--- /dev/null
+++ b/cpukit/zlib/gzclose.c
@@ -0,0 +1,25 @@
+/* gzclose.c -- zlib gzclose() function
+ * Copyright (C) 2004, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* gzclose() is in a separate file so that it is linked in only if it is used.
+   That way the other gzclose functions can be used instead to avoid linking in
+   unneeded compression or decompression routines. */
+int ZEXPORT gzclose(file)
+    gzFile file;
+{
+#ifndef NO_GZCOMPRESS
+    gz_statep state;
+
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    return state->mode == GZ_READ ? gzclose_r(file) : gzclose_w(file);
+#else
+    return gzclose_r(file);
+#endif
+}