distributable:
  url: https://ftp.gnu.org/gnu/bison/bison-{{ version }}.tar.xz
  strip-components: 1

versions:
  github: akimd/bison/tags

dependencies:
  # bison cannot operate without the m4 executable
  gnu.org/m4: 1

build:
  dependencies:
    tea.xyz/gx/cc: c99
    tea.xyz/gx/make: '*'
  script: |
    ./configure $ARGS
    make --jobs {{ hw.concurrency }} install
  env:
    M4: m4  # or fails on Linux
    ARGS:
      - --prefix={{ prefix }}
      - --enable-relocatable

test:
  dependencies:
    tea.xyz/gx/cc: c99
  script: |
    bison test.y
    c++ test.tab.c
    test pass = $(echo "((()(())))()" | ./a.out)
    test fail = $(echo "())" | ./a.out)