CMake CMAKE_CXX_FLAGS

Derleyici Sürümü Öğrenmek
Şöyle yaparız.

include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++14" COMPLIER_SUPPORTS_CXX14)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPLIER_SUPPORTS_CXX0X)
if(COMPLIER_SUPPORTS_CXX14)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
elseif(COMPILER_SUPPORTS_CXX0X)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
else()
    message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++14 support.
                    Please use a different C++ compiler.")
endif()

Derleyici Sürümü Seçmek

Şöyle yaparız.

SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

Şöyle yaparız.

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")

Şöyle yaparız.

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON) # make the standard version a requirement

Şöyle yaparız.

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

Şöyle yaparız.

set(CMAKE_CXX_STANDARD 14)

Şöyle yaparız.

# https://cmake.org/cmake/help/latest/prop_tgt/CXX_STANDARD.html
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

# expected behaviour
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++lastest")

Paralel Derlemek
Visual Studio'da şöyle yaparız.

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")