branches:
  except:
    - /libpng[0-1][0-8]/
    - /v[0-1][.][0-8][.][0-9]+/

language: c

os:
  - freebsd
  - linux
  - osx

env:
  - AUTOMATION=cmake
  - AUTOMATION=configure
  - AUTOMATION=makefiles

before_script:
  - 'if test "$TRAVIS_OS_NAME" = "linux"; then export CI_CC="gcc"; else export CI_CC="clang"; fi'
  - 'if test "$TRAVIS_OS_NAME" = "osx"; then export CI_CMAKE_GENERATOR="Xcode"; fi'
  - 'if test "$TRAVIS_OS_NAME" != "osx"; then export CI_SANITIZERS="address,undefined"; fi'
  - 'export CI_MAKEFILES="scripts/makefile.$CI_CC scripts/makefile.std"'
  - 'export CI_MAKE_FLAGS=-j2'
  - 'export CI_CMAKE_BUILD_FLAGS=-j2'
  - 'export CI_CTEST_FLAGS=-j2'

script:
  - './ci/ci_verify_$AUTOMATION.sh'