我在使用CMake编译C++ 11/SDL 2.0代码时遇到了一些麻烦。该CMakeLists很简单:CMake with SDL 2.0 and C++ 11
cmake_minimum_required(VERSION 2.6)
project(Test)
include(FindPkgConfig)
pkg_search_module(SDL2 REQUIRED sdl2)
include_directories(${SDL2_INCLUDE_DIRS})
target_link_libraries(sdl2test ${SDL2_LIBRARIES})
add_definitions(-std=c++0x)
add_executable(Test src/main.cpp)
然而,编译时,我收到此错误:
Scanning dependencies of target Test
[100%] Building CXX object CMakeFiles/Test.dir/src/main.cpp.o
/var/dev/cmake/src/main.cpp: In function ‘int main(int, char**)’:
/var/dev/cmake/src/main.cpp:11:16: error: ‘nullptr’ was not declared in this scope
/var/dev/cmake/src/main.cpp:17:16: error: ‘nullptr’ was not declared in this scope
make[2]: *** [CMakeFiles/Test.dir/src/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/Test.dir/all] Error 2
make: *** [all] Error 2
cmake的版本2.8.9和4.7.2的gcc。有关如何正确使用CMake的C++ 11功能的任何想法?
PS:我也曾尝试-std = C++ 11
您可以添加'make VERBOSE = 1'的输出。我想这个定义不会被添加。 实际上,-st = C++ 11不是标志,而是编译器的一部分。对我来说'set(CMAKE_CXX_FLAGS“$ {CMAKE_CXX_FLAGS} -std = C++ 11”)'起作用。 – usr1234567