如何仅更改CMake中的一个可执行文件的编译器标志? [英] How to change a compiler flag for just one executable in CMake?
问题描述
我有一个CMake项目,该项目通过 \MP
标志支持Visual Studio中的多处理器编译。
I have a CMake project that supports multiple processor compilation in Visual Studio through the \MP
flag.
由于仅在项目构建的多个可执行文件之一中,我需要将 \MP
标志设置为false(或将其禁用(因为导入<$时出错) c $ c> .tlb 文件),如何为该目标设置不同的标志?
Since in just one of the many executable that the project builds, I need to set the \MP
flag to false (or disable it because I get errors importing a .tlb
file), how can I set the flags for this target different?
add_executable(MyProgram myprogram.cpp)
target_link_libraries(MyProgram MyLibraries)
我应该给一些 set_target_properties
是从整个项目中删除还是删除标志?
谢谢!
Should I give some set_target_properties
to cmake or specifically remove the flag from the whole project?
Thank you!
推荐答案
您可以使用 set_source_files_properties 添加 COMPILE_FLAGS 。例如:
You can use set_source_files_properties to add COMPILE_FLAGS for myprogram.cpp. For example:
add_executable(MyProgram myprogram.cpp)
# Add the -std=c++11 flag as an example
set_source_files_properties( myprogram.cpp PROPERTIES COMPILE_FLAGS "-std=c++11" )
target_link_libraries(MyProgram MyLibraries)
如果在MyProgram目标中所有源文件都需要这些标志,则可以使用 set_target_properties 和目标属性 COMPILE_FLAGS :
If you need those flags for all source files in the MyProgram target, you could use set_target_properties with the target property COMPILE_FLAGS:
add_executable(MyProgram myprogram.cpp)
# Add the -std=c++11 flag as an example
target_link_libraries(MyProgram MyLibraries)
set_target_properties( MyProgram PROPERTIES COMPILE_FLAGS "-std=c++11" )
更新:要删除单个属性,您可以先获取所有属性,然后从列表中手动删除有问题的标志。例如,使用 get_source_file_property :
Update: To remove a single property, you can first get all the properties and manually remove the offending flag from the list. For example with get_source_file_property:
get_source_file_property( MYPROPS myprogram.cpp COMPILE_FLAGS )
STRING( REPLACE "/MP1" "" MYPROPS ${MYPROPS} )
set_source_files_properties( myprogram.cpp COMPILE_FLAGS ${MYPROPS} )
但是,我建议拆分您的源文件成两半。一个带有所有带有\MP标志的源文件,另一个带有仅myprogram.cpp
However, I would recommend splitting your source files in two. One with all the source files with the \MP flag and another with only myprogram.cpp
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