From 62d6112a7981ad7c34f3b43cffdf00d4662a4f25 Mon Sep 17 00:00:00 2001 From: Mark Adler Date: Sun, 12 Aug 2012 18:08:52 -0700 Subject: Clean up the usage of z_const and respect const usage within zlib. This patch allows zlib to compile cleanly with the -Wcast-qual gcc warning enabled, but only if ZLIB_CONST is defined, which adds const to next_in and msg in z_stream and in the in_func prototype. A --const option is added to ./configure which adds -DZLIB_CONST to the compile flags, and adds -Wcast-qual to the compile flags when ZLIBGCCWARN is set in the environment. --- compress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'compress.c') diff --git a/compress.c b/compress.c index ea4dfbe..6e97626 100644 --- a/compress.c +++ b/compress.c @@ -29,7 +29,7 @@ int ZEXPORT compress2 (dest, destLen, source, sourceLen, level) z_stream stream; int err; - stream.next_in = (Bytef*)source; + stream.next_in = (z_const Bytef *)source; stream.avail_in = (uInt)sourceLen; #ifdef MAXSEG_64K /* Check for source > 64K on 16-bit machine: */ -- cgit v1.2.1