Missing pkg-config name transforms (for libarchive, libcrypto, etc)

[TheZeus121]

Zig Version

0.11.0-dev.174+d823680e1

Steps to Reproduce and Observed Behavior

Add linkSystemLibrary("archive") to build.zig. Observe that Zig just adds -larchive without any -L or -I flags (it actually doesn't call pkg-config --cflags --libs) so it fails if libarchive is installed to a non-standard path.

Now replace that with linkSystemLibrary("libarchive") and pkg-config gets called properly but if you remove pkg-config, you get -llibarchive which doesn't work.

Expected Behavior

For linkSystemLibrary("archive") to call pkg-config --cflags --libs libarchive.

linkSystemLibraryPkgConfigOnly("libarchive") is not a solution because if libarchive is installed in a standard location it should still be linkable without pkg-config, but currently there is no portable way to do this without checking if pkg-config is in PATH in build.zig.

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Currently lib/std/build.zig's runPkgConfig doesn't support the following "transform kinds" I've seen in the wild (on Homebrew and on Debian):

• -larchive -> pkg-config libarchive
• -lrsvg-2 -> pkg-config librsvg-2.0
• -lxml2 -> pkg-config libxml-2.0

Aside from libxml2, it seems it should be possible to go through the checks that are in place already just also check them for names with added "lib" prefix.

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I'd tackle this issue myself but I don't feel like learning how to compile zig from source tonight 🙈

[matu3ba]

I'd tackle this issue myself but I don't feel like learning how to compile zig from source tonight

You can use the instructions in https://github.com/ziglang/zig/wiki/Building-Zig-From-Source and on problems/unclear things, ask in a community place https://github.com/ziglang/zig/wiki/Community.

[BratishkaErik]

Related: #3671