以前在cmake中要判断一个编译器是否支持C++11挺麻烦的,要根据编译器的类型和版本来判断。 从cmake 3.1版本开始增加了一个CMAKE_CXX_COMPILE_FEATURES变量用于获取当前C++ 编译器支持的编译特性列表,列表中是一些定义在CMAKE_CXX_KNOWN_FEATURES(C++已知特性)中的特性名字,比如cxx_lambdas即为当前编译器支持lambda表达式。
在cmake脚本中,设置编译选项可以通过add_compile_options命令,也可以通过set命令修改CMAKE_CXX_FLAGS或CMAKE_C_FLAGS。 使用这两种方式在有的情况下效果是一样的,但请注意它们还是有区别的: add_compile_options命令添加的编译选项是针对所有编译器的(包括c和c++编译器),而set命令设置CMAKE_C_FLAGS或CMAKE_CXX_F...
CMake Error at C:/Users/Administrator/.platformio/packages/framework-espidf/tools/cmake/project.cmake:308 (__project): No CMAKE_CXX_COMPILER could be found. Tell CMake where to find the compiler by setting either the environment variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER...
CMake: use add_compile_options() instead of setting CMAKE_CXX_FLAGS f… … 91f7420 rouault added the backport release/3.10 label Nov 16, 2024 Contributor andrew-aitchison commented Nov 16, 2024 Confirm issue fixed View details rouault merged commit f84b0b9 into OSGeo:master Nov 16, ...
如上所述,有些特殊选项单单add_compile_options是不够的,还要add_link_options。 还有一种方法是修改CMAKE_CXX_FLAGS,如下所示: cmake_minimum_required(VERSION 3.10) set(CMAKE_SYSTEM_NAME Linux) set(CMAKE_SYSTEM_PROCESSOR riscv32) set(CMAKE_C_COMPILER /opt/riscv/bin/riscv64-unknown-elf-gcc)...
SET (CMAKE_CXX_COMPILER"${DEVROOT}/usr/bin/arm-apple-darwin9-g++-4.2.1") SET (CMAKE_CXX_FLAGS"-x objective-c++") SET (CMAKE_CXX_FLAGS_DEBUG"${CMAKE_CXX_FLAGS}-DDEBUG=1 -ggdb") SET (CMAKE_CXX_FLAGS_RELEASE"${CMAKE_CXX_FLAGS}-DNDEBUG=1") ...
CMake语言是平台无关的中间编译工具。同一个CMake编译规则在不同系统平台构建出不同的可执行构建文件。...
问设置外部库后，强制cmake重新运行CHECK_CXX_SOURCE_COMPILESEN使用CMake，我想检查来自OpenCV库的特定...
Now that we're targeting platforms with cmake-3.16+ available, we should use target_compile_features with cxx_std_## instead of set(CMAKE_CXX_STANDARD ##). Using target_compile_features helps downstream packages to identify the minimum s...
问为什么CMAKE_CXX_STANDARD似乎不适用于check_cxx_source_compilesENApriori是Agarwal和Srikant在1994年...