[zlib] use the MinGW pkg-config name with clang on Windows

[mmomtchev]

Specify library name and version: libz/1.3.1

Refs: #23058

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[github-actions]

🤖 Beep Boop! This pull request is making changes to 'recipes/zlib//'.

👋 @Hopobcn you might be interested. 😉

[ghost]

I detected other pull requests that are modifying zlib/all recipe:

• BugFix: Allow usage of clang+mingw with zlib #18283

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

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Conan v1 pipeline ✔️

All green in build 2 (5d78f1fde30ee09d2562caa7c64cef9e273b02ff):

• zlib/1.3:
  All packages built successfully! (All logs)

• zlib/1.3.1:
  All packages built successfully! (All logs)

• zlib/1.2.13:
  All packages built successfully! (All logs)

• zlib/1.2.11:
  All packages built successfully! (All logs)

• zlib/1.2.12:
  All packages built successfully! (All logs)

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All green in build 2 (5d78f1fde30ee09d2562caa7c64cef9e273b02ff):

• zlib/1.3.1:
  All packages built successfully! (All logs)

• zlib/1.2.12:
  All packages built successfully! (All logs)

• zlib/1.2.11:
  All packages built successfully! (All logs)

• zlib/1.3:
  All packages built successfully! (All logs)

• zlib/1.2.13:
  All packages built successfully! (All logs)

[SpaceIm]

It would break clang-cl.

I've proposed a helper in conan client conan-io/conan#12678, but it has been rejected.

You would like something like this:

    @property
    def _is_mingw(self):
        self.settings.os == "Windows" and (self.settings.compiler == "gcc" or (self.settings.compiler == "clang" and not self.settings.compiler.get_safe("runtime")))

See also #14644

[mmomtchev]

It got rejected because it was a conan 1.x issue. If this is common throughout conan, I think there must be a generic and centralized solution to it. Especially since these days, if someone is using a gcc-derivative on Windows, the most probable choice would be clang because of libc++.

[mmomtchev]

Should be superseded by the solution to conan-io/conan#15648