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Subject: [Bug other/105404] new version of zlib
Date: Tue, 03 May 2022 17:54:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105404

--- Comment #7 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Martin Li=C5=A1ka from comment #6)
> Can't see the warning when I build the current zlib library with clang.

You might need to switch on -Wall or (more likely) -Wextra.

> Can you please paste a build log?

Not easily. Here is one example warning, amongst many:

../../trunk.git/zlib/uncompr.c:86:13: warning: a function declaration witho=
ut a
prototype is deprecated in all versions of C and is not supported in C2x
[-Wdeprecated-non-prototype]

As I say, pattern /zlib/.*-Wdeprecated-non-prototype would probably work.=