{% set name = "libpng" %}
{% set version = "1.6.56" %}
{% set short_version = version.split('.')[0] ~ version.split('.')[1] %}

package:
  name: {{ name }}
  version: {{ version }}

source:
  url: https://download.sourceforge.net/{{ name }}/{{ name }}-{{ version }}.tar.gz
  sha256: 8f91e941a07fb1069ebb3855278f82a849e6af14ca05821e14ec3d5348697ea5
  patches:
    - 0001-Include-pkg-config-files-in-the-Windows-packages-too.patch
    - 0002-Ensure-that-lm-is-not-included-in-Windows-pkg-config.patch

build:
  number: 0
  skip: true  # [win and vc<14]
  run_exports:
    # SO name changes at minor rev bumps.
    - {{ pin_subpackage(name, max_pin='x.x') }}

requirements:
  build:
    - {{ stdlib('c') }}
    - {{ compiler('c') }}
    - make          # [unix]
    - cmake >=3.14  # [win]
    - ninja-base    # [win]
    - libtool       # [not win]
    - automake      # [not win]
  host:
    - zlib {{ zlib }}

test:
  requires:
    - {{ compiler('c') }}  # [unix]
    - zlib {{ zlib }}
  files:
    - test_libpng_write.c
  commands:
    - test -f ${PREFIX}/lib/libpng${SHLIB_EXT}                          # [unix]
    - test -f ${PREFIX}/lib/libpng{{ short_version }}${SHLIB_EXT}       # [unix]
    - test -f ${PREFIX}/include/libpng{{ short_version }}/png.h         # [unix]
    - test -f ${PREFIX}/include/libpng{{ short_version }}/pngconf.h     # [unix]
    - test -f ${PREFIX}/include/libpng{{ short_version }}/pnglibconf.h  # [unix]
    - libpng-config --version  # [unix]
    - echo "tests done during build ..."  # [win]
    - ${CC} test_libpng_write.c -I${PREFIX}/include -L${PREFIX}/lib -lpng -lz -Wl,-rpath,${PREFIX}/lib -o test_libpng_write  # [unix]
    - ./test_libpng_write  # [unix]

about:
  home: https://www.libpng.org/pub/png/libpng.html
  license: Zlib
  license_family: Other
  license_file: LICENSE
  summary: PNG reference library
  description: |
    libpng is the official PNG reference library. It supports almost all PNG
    features, is extensible, and has been extensively tested for over 30 years.
  doc_url: https://www.libpng.org/pub/png/libpng.html
  dev_url: https://sourceforge.net/p/libpng/code/ci/libpng16/tree

extra:
  recipe-maintainers:
    - ocefpaf
    - msarahan
    - pkgw