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authorMark Adler <madler@alumni.caltech.edu>2012-08-12 18:08:52 -0700
committerMark Adler <madler@alumni.caltech.edu>2012-08-13 00:02:40 -0700
commit62d6112a7981ad7c34f3b43cffdf00d4662a4f25 (patch)
treeaed93070f7e1be31868dce1d62a1de6ffc1360f9 /uncompr.c
parentfb4e0599a5ddaef9eee726f786b9edef4943432b (diff)
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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.
Diffstat (limited to 'uncompr.c')
-rw-r--r--uncompr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/uncompr.c b/uncompr.c
index ad98be3..242e949 100644
--- a/uncompr.c
+++ b/uncompr.c
@@ -30,7 +30,7 @@ int ZEXPORT uncompress (dest, destLen, source, sourceLen)
30 z_stream stream; 30 z_stream stream;
31 int err; 31 int err;
32 32
33 stream.next_in = (Bytef*)source; 33 stream.next_in = (z_const Bytef *)source;
34 stream.avail_in = (uInt)sourceLen; 34 stream.avail_in = (uInt)sourceLen;
35 /* Check for source > 64K on 16-bit machine: */ 35 /* Check for source > 64K on 16-bit machine: */
36 if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR; 36 if ((uLong)stream.avail_in != sourceLen) return Z_BUF_ERROR;