support zig cc -target

[jimying]

Is your feature request related to a problem? Please describe.

• support zig cc -target x86_64-linux-gnu
• support zig cc -target x86_64-linux-gnu.2.18 specify glibc version 2.18

Describe the solution you'd like

error build c++ hello project

export tgt=x86_64-linux-gnu.2.18
xmake f --cc="zig cc -target $tgt"  --cxx="zig c++ -target $tgt" --ld="zig c++ -target $tgt" -c
xmake

error:

error: cannot find known tool script for zig c++ -target x86_64-linux-gnu.2.18

Describe alternatives you've considered

No response

Additional context

No response

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Title: support zig cc -target

[waruqi]

xmake f --toolchain=zig
xmake

[jimying]

xmake f --toolchain=zig
xmake

it's only can build for current cpu arch/platform,
i mean that use 'zig cc -target xxx' to cross compile.
eg. on x86_64 machine bind aarch64 binary

zig cc -target aarch64-linux-gnu

or build use musl replace glibc

zig cc -target aarch64-linux-musl

or sepecify glibc version

zig cc -target aarch64-linux-gnu.2.17

[waruqi]

switch to cross platform.

xmake/xmake/toolchains/zig/xmake.lua

Line 129 in ca53159

-- xmake f -p cross --toolchain=zig --cross=mips64el-linux-gnuabi64

xmake f -p cross --toolchain=zig --cross=mips64el-linux-gnuabi64

[jimying]

good job, thanks. now i can happy play with xmake.

[waruqi]

Afterwards, zigcc will need a separate zigcc toolchain; zig and zigcc will be split into two independent toolchains. (#7383)