c++ - Debug vs Release in CMAKE -


in gcc compiled project,

  • how run cmake each target type (debug/release)?
  • how specify debug , release c/c++ flags using cmake?
  • how express main executable compiled g++ , 1 nested library gcc?

it's best "out of source" build. create cmakelists.txt in root of project. root of project:

mkdir release cd release cmake -dcmake_build_type=release .. make

and debug (again root of project):

mkdir debug cd debug cmake -dcmake_build_type=debug .. make

debug add debug flags appropriate compiler. see this faq more details.

you can modify/add flags in cmakelists.txt via cmake_c_flags_debug , cmake_c_flags_release variables, e.g.: 

set(cmake_cxx_flags_debug "${cmake_cxx_flags_debug} -wall") set(cmake_cxx_flags_release "${cmake_cxx_flags_release} -wall")

see this link under cmake_build_type more details.

as 3rd question, i'm not sure asking exactly. cmake should automatically detect , use compiler appropriate different source files.


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