cmake_minimum_required(VERSION 2.8)

project(target_compile_options)

add_executable(target_compile_options
  "${CMAKE_CURRENT_SOURCE_DIR}/main.cpp"
)
target_compile_options(target_compile_options
  PRIVATE $<$<CXX_COMPILER_ID:GNU>:-DMY_PRIVATE_DEFINE>
  PUBLIC $<$<CXX_COMPILER_ID:GNU>:-DMY_PUBLIC_DEFINE>
  INTERFACE $<$<CXX_COMPILER_ID:GNU>:-DMY_INTERFACE_DEFINE>
)

if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
  target_compile_definitions(target_compile_options
    PRIVATE
      "DO_GNU_TESTS"
  )
endif()

add_executable(consumer
  "${CMAKE_CURRENT_SOURCE_DIR}/consumer.cpp"
)

if (NOT CMAKE_GENERATOR MATCHES "Visual Studio")
  target_sources(consumer PRIVATE
    "${CMAKE_CURRENT_SOURCE_DIR}/consumer.c"
  )
  target_compile_options(consumer
    PRIVATE
      -DCONSUMER_LANG_$<COMPILE_LANGUAGE>
      -DLANG_IS_CXX=$<COMPILE_LANGUAGE:CXX>
      -DLANG_IS_C=$<COMPILE_LANGUAGE:C>
  )
  target_compile_definitions(consumer
    PRIVATE -DTEST_LANG_DEFINES
  )
endif()

target_compile_options(consumer
  PRIVATE $<$<CXX_COMPILER_ID:GNU>:$<TARGET_PROPERTY:target_compile_options,INTERFACE_COMPILE_OPTIONS>>
)

if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
  target_compile_definitions(consumer
    PRIVATE
      "DO_GNU_TESTS"
  )
endif()

# Test no items
target_compile_options(consumer
  PRIVATE
)