os:
  - Visual Studio 2013
  - Visual Studio 2015

install:
  - mkdir deps
  - cd deps
  # Zlib
  - appveyor DownloadFile https://github.com/madler/zlib/archive/v1.2.8.tar.gz
  - 7z x v1.2.8.tar.gz -so | 7z x -si -ttar > nul
  - move zlib-1.2.8 zlib
  - cd zlib
  - cmake .
  - cmake --build .
  - cd ..
  # libPNG
  - appveyor DownloadFile ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng16/libpng-1.6.26.tar.gz
  - 7z x libpng-1.6.26.tar.gz -so | 7z x -si -ttar > nul
  - move libpng-1.6.26 libpng
  - cd libpng
  - cmake .
  - cmake --build .
  - cd ..
  # go back to source root
  - cd ..


build_script:
  - mkdir build
  - cd build 
  - cmake .. -DZLIB_INCLUDE_DIR=..\deps\zlib -DZLIB_LIBRARY=..\deps\zlib\release\zlibstatic.lib -DPNG_INCLUDE_DIR=..\deps\libpng -DPNG_LIBRARIES=..\deps\libpng\libpng.lib
  - cmake --build .