Can't build toolchain on mac os arm M1 apple silicon aarch64 about libdragon HOT 5 CLOSED

I got it to build. Here is what I did:

0. install zlib using homebrew

1. modified the build toolchain script - I tried a few things to manually specify zlib from homebrew instead of mac os clang. You can make a diff if you want to see the details.

2. explicitly defined my library path for homebrew packages (specifically including zlib) :
   export LIBRARY_PATH="/opt/homebrew/lib"

build-toolchain.txt

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I'd like to request that someone review my changes and test them on their own system to confirm. Then maybe we can do a pull request?

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On my Mac OS M1 with Ventura, I do have zlib installed on Homebrew, but I don't think it's using that one (as the build script, as you noted, doesn't make an effort to use it). I think it's using a "system" one. I think the system one that I have is installed with XCode command line tools.

What happens if you run xcode-select -p on your system? It should either show a path or print an error. Can you check if the process returns a non-zero exit code when the tools are not installed? In that case, xcode-select --install should install them.

Alternatively we can try to use zlib from homebrew, but we need a solution that doesn't involve changing LIBRARY_PATH as that can bring too much stuff into the build, and I can see it causing hard to diagnose problems.

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Thanks for looking into this.

(base) MacBook-Air-2:~ alex$ xcode-select -p 
/Applications/Xcode.app/Contents/Developer
(base) MacBook-Air-2:~ alex$ /usr/bin/xcodebuild -version
Xcode 14.3.1
Build version 14E300c

I think the main change that fixed the compilation issues was to remove the --with-system-zlib argument from the mips gcc compilation, but I haven't tried messing with multiple changes to figure out the one true thing that fixed the issue. Just removing --with-system-zlib and not anything else lead to a bunch of missing c standard library errors:

#../"gcc-$GCC_V"/configure "${GCC_CONFIGURE_ARGS[@]}" \
LDFLAGS="-L/opt/homebrew/lib" CPPFLAGS="-I/opt/homebrew/include" ../"gcc-$GCC_V"/configure "${GCC_CONFIGURE_ARGS[@]}" \
    --prefix="$CROSS_PREFIX" \
    --target="$N64_TARGET" \
    --with-arch=vr4300 \
    --with-tune=vr4300 \
    --enable-languages=c,c++ \
    --without-headers \
    --disable-libssp \
    --enable-multilib \
    --disable-shared \
    --with-gcc \
    --with-newlib \
    --disable-threads \
    --disable-win32-registry \
    --disable-nls \
    --disable-werror
    #--with-system-zlib 

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Fixed on both stable and unstable by #483

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