cmake_minimum_required(VERSION 2.8) project(CompileOptions) add_library(testlib other.cpp) add_executable(CompileOptions main.cpp) set_property(TARGET CompileOptions PROPERTY COMPILE_OPTIONS "$<$:-DTEST_DEFINE>") target_link_libraries(CompileOptions testlib) if(CMAKE_CXX_COMPILER_ID MATCHES "GNU") target_compile_definitions(CompileOptions PRIVATE "DO_GNU_TESTS" ) endif()