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author | Mark Adler <madler@alumni.caltech.edu> | 2012-08-12 18:08:52 -0700 |
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committer | Mark Adler <madler@alumni.caltech.edu> | 2012-08-13 00:02:40 -0700 |
commit | 62d6112a7981ad7c34f3b43cffdf00d4662a4f25 (patch) | |
tree | aed93070f7e1be31868dce1d62a1de6ffc1360f9 /gzread.c | |
parent | fb4e0599a5ddaef9eee726f786b9edef4943432b (diff) | |
download | zlib-62d6112a7981ad7c34f3b43cffdf00d4662a4f25.tar.gz |
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 'gzread.c')
-rw-r--r-- | gzread.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -58,7 +58,8 @@ local int gz_avail(state) return -1; if (state->eof == 0) { if (strm->avail_in) { /* copy what's there to the start */ - unsigned char *p = state->in, *q = strm->next_in; + unsigned char *p = state->in; + unsigned const char *q = strm->next_in; unsigned n = strm->avail_in; do { *p++ = *q++; |