# test forcing a source file language to c++ from c cmake_minimum_required (VERSION 2.6) project(SetLang) # force this to be verbose so I can debug a dashboard entry set(CMAKE_VERBOSE_MAKEFILE 1) add_library(foo foo.c) add_executable(SetLang bar.c) set_source_files_properties(foo.c bar.c PROPERTIES LANGUAGE CXX) target_link_libraries(SetLang foo) set_target_properties(SetLang PROPERTIES LINKER_LANGUAGE CXX) # Windows defender blocks SetLang executable (https://cygwin.com/pipermail/cygwin/2021-January/247508.html) # Coordinate this name with 'Tests/CMakeLists.txt'. set_target_properties(SetLang PROPERTIES OUTPUT_NAME "SetLangX") # VS generators historically tolerated target-wide -TP flags added # by project code, so cover that case to preserve the behavior. if(CMAKE_GENERATOR MATCHES "^Visual Studio" AND "x${CMAKE_C_COMPILER_ID}" STREQUAL "xMSVC") add_library(stay stay_c.c stay_cxx.cxx) set_property(TARGET stay PROPERTY COMPILE_OPTIONS "-TP") endif() if((CMAKE_C_COMPILER_ID MATCHES "(GNU|Clang|MSVC|Borland|Embarcadero|Intel|TI|XL)")) cmake_policy(SET CMP0119 NEW) add_library(zoom zoom.zzz) set_source_files_properties(zoom.zzz PROPERTIES LANGUAGE CXX) target_link_libraries(SetLang zoom) target_compile_definitions(SetLang PRIVATE WITH_ZOOM) endif()