GCC 12.2.0 shows this false positive error message:
````
In function 'bigger_buffer',
inlined from '__libdw_gunzip' at gzip.c:374:12:
gzip.c:96:9: error: pointer may be used after 'realloc' [-Werror=use-after-free]
96 | b = realloc (state->buffer, more -= 1024);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gzip.c:94:13: note: call to 'realloc' here
94 | char *b = realloc (state->buffer, more);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
````
GCC bug report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104069
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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