cmake HAVE_STD_CXX_14 examples

sigrokproject/pulseview CMakeLists.txt :88 

check_cxx_compiler_flag("-std=c++14" HAVE_STD_CXX_14)

sigrokproject/pulseview CMakeLists.txt :94 

elseif(HAVE_STD_CXX_14)

sigrokproject/pulseview CMakeLists.txt :106 

check_cxx_compiler_flag("-std=c++14" HAVE_STD_CXX_14)