pantry/projects/musl.libc.org/package.yml

distributable:
  url: https://git.musl-libc.org/cgit/musl/snapshot/{{ version }}.tar.gz
  strip-components: 1

versions:
  - 1.2.3

relocatable: true

provides:
  - bin/ld.musl-clang
  - bin/musl-clang

dependencies:
  tea.xyz/gx/cc: c99

build:
  dependencies:
    tea.xyz/gx/make: '*'
  script: |
    # musl is linux only, so just make passthrough scripts on Darwin
    if test {{ hw.platform }} != "linux"
    then
      mkdir -p "{{ prefix }}/bin"
      cat > {{ prefix }}/bin/ld.musl-clang <<EOF
    #!/bin/sh
    exec ld "$@"
    EOF
    cat > {{ prefix }}/bin/musl-clang <<EOF
    #!/bin/sh
    exec cc "$@"
    EOF
      chmod +x {{ prefix }}/bin/ld.musl-clang {{ prefix }}/bin/musl-clang
      exit
    fi

    ./configure --prefix={{ prefix }} --syslibdir={{ prefix }}/lib

    make --jobs {{ hw.concurrency }}
    make install

    ln -sf libc.so {{prefix}}/lib/ld-musl-{{hw.arch}}.so.1

    # fix script paths; might be a better way
    #FIXME probably: dynamic linker causes segfaults
    sed -i.bak \
      -e 's/-dynamic-linker "\$ldso"//' \
      -e 's/^sflags=$/sflags="-static"/' \
      -e 's/^libc=".*/libc="$(dirname $(dirname $(which ld.musl-clang)))"/' \
      -e 's#^libc_inc=".*#libc_inc="$libc/include"#' \
      -e 's#^libc_lib=".*#libc_lib="$libc/lib"#' \
      {{prefix}}/bin/musl-clang \
      {{prefix}}/bin/ld.musl-clang
  env:
    CC: clang

test:
  fixture: |
    #include <stdio.h>
    int main() {
      printf("Hello World!");
      return 0;
    }
  script: |
    # musl is linux only
    #FIXME? We don't sub our tokens in test scripts
    if test $(uname) != "Linux"
    then
      exit
    fi

    mv $FIXTURE $FIXTURE.c
    musl-clang $FIXTURE.c
    test "$(./a.out)" = "Hello World!"