我是CMake的新手。事实上,我通过Kdevelop4 widh C ++尝试。
我有为每个我创建的命名空间创建子目录的习惯,即使所有的源必须编译和链接转换为单个可执行文件。好吧,当我在kdevelop下创建一个目录,它用一个add_subdirectory命令更新CMakeLists.txt,并在它下面创建一个新的CMakeLists.txt,但单独不会将其下的源码添加到编译列表。
我有根CMakeLists.txt如下:
项目(gear2d) add_executable(gear2d object.cc main.cc) add_subdirectory(component)在组件/我有我想要编译和链接的来源,以产生gear2d可执行文件。
CMake常见问题有这个条目,但如果这是答案,我宁愿留在纯makefile。
有办法吗?
<添加一个子目录不能指定CMake进入目录,并在那里寻找另一个CMakeLists.txt。您仍然需要使用 add_library在子文件夹CMakeLists.txt
set(component_SOURCES ...)#为此处的组件添加源文件#可以使用文件glob(取消注释下一行)#file(GLOB component_SOURCES * .cpp) add_library(component $ {component_SOURCES})Top-dir CMakeLists.txt
project(gear2d) add_subdirectory(component) add_executable(gear2d object.cc main.cc) target_link_libraries(gear2d component)
I am very new to CMake. In fact, I am trying it through Kdevelop4 widh C++.
I have the habit of creating subdirs for every namespace I create, even if all the sources must be compiled and linked into a single executable. Well, when i create a directory under kdevelop, it updates CMakeLists.txt with a add_subdirectory command and creates a new CMakeLists.txt under it, but that alone does not add the sources under it to the compilation list.
I have the root CMakeLists.txt as follows:
project(gear2d) add_executable(gear2d object.cc main.cc) add_subdirectory(component)Under component/ I have the sources I want to be compiled and linked to produce the gear2d executables. How can I accomplish that?
CMake FAQ have this entry but if thats the answer I'd rather stay with plain Makefiles.
Is there a way of doing this?
解决方案Adding a subdirectory does not do much more than specify to CMake that it should enter the directory and look for another CMakeLists.txt there. You still need to create a library with the source files with add_library and link it to your executable with target_link_libraries. Something like the following:
In the subdir CMakeLists.txt
set( component_SOURCES ... ) # Add the source-files for the component here # Optionally you can use file glob (uncomment the next line) # file( GLOB component_SOURCES *.cpp )below add_library( component ${component_SOURCES} )Top-dir CMakeLists.txt
project( gear2d ) add_subdirectory( component ) add_executable( gear2d object.cc main.cc ) target_link_libraries( gear2d component )
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