On Nov 11, 2017, at 7:04 AM, João Valverde <joao.valverde@xxxxxxxxxxxxxxxxxx> wrote:
> I pushed a change making zlib 1.2.3 or greater a required build dependency:
>
> https://code.wireshark.org/review/#/c/24352/1
Does that change also assume that pkg-config will find zlib?
If so, that's an inappropriate assumption on the desktop UN*X with the largest market share:
$ pkg-config --list-all | egrep -i 'zlib|libz'
$ ls /usr/lib/libz.*
/usr/lib/libz.1.1.3.dylib /usr/lib/libz.1.dylib
/usr/lib/libz.1.2.5.dylib /usr/lib/libz.dylib
/usr/lib/libz.1.2.8.dylib
$ ls /usr/include/zlib.h
/usr/include/zlib.h
$ which pkg-config
/usr/local/bin/pkg-config
$ sw_vers
ProductName: Mac OS X
ProductVersion: 10.12.6
BuildVersion: 16G1036
macOS
1) has a bundled zlib, and includes header files for it in Xcode and the command-line build tools;
2) does *not* have a bundled pkg-config, and thus does *not* provide .pc files for zlib;
so anything that searches for zlib using pkg-config and that does *NOT* fall back on using an old-fashioned mechanism to find it if pkg-config doesn't find t will fail.
