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This is my CMakeLists.txt:
ADD_SUBDIRECTORY(third)
ADD_SUBDIRECTORY(utils)
ADD_SUBDIRECTORY(rpc)
But the directory 'rpc' will be compiled before directory 'utils', actually the 'rpc' is depends on 'utils', so I will get a link error.
How can I make the 'rpc' compiling after 'utils'?
Thanks.
416
Add a subdirectory to the build. Adds a subdirectory to the build. The source_dir specifies the directory in which the source CMakeLists.
This seems as a trivial question, since CMake is a script language the general answer is: strictly sequential.
add_library(<name> [STATIC | SHARED | MODULE] [EXCLUDE_FROM_ALL] [<source>...]) Adds a library target called <name> to be built from the source files listed in the command invocation. The <name> corresponds to the logical target name and must be globally unique within a project.
When you use target_link_libraries() function and pass it other target name, CMake automatically sets this target as a dependency. You can also use add_dependencies() to specify dependencies manually.
Also note that order of sources compilation have nothing to do with your problem. Link errors (i guess, you are seeing "undefined reference" ones) are because you aren't linking your targets properly.
112
if the 'rpc' is depends on 'utils':
utils CMAKELISTS.txt
project(utils)
add_library (utils SHARED ${PROJECT_SOURCE_LIST})
rpc CMAKELISTS.txt
project(rpc)
add_library (rpc SHARED ${PROJECT_SOURCE_LIST})
# must add this command to scan dependencies of target rpc
add_dependencies (rpc utils)
target_link_libraries (${TEST_SOURCE_FILE_NAME} libutils.so)
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