cmake:设置编译选项的讲究(add_compile_options和CMAKE_CXX_FLAGS的区别)
一般遇到以下类似问题：command line option ‘-std=c11‘ is valid for C/ObjC but not for C++error: command line option '-std=c++11' is valid for C++/ObjC++ but not for C [-Werror]或：c++0x_warning.h:32:2: error: #error This file requires compiler and library suppor
