cmake - 不同子目录中的相同库名称：在父级调用 `add_subdirectory` 时发生冲突

Question

简单的文件夹结构就像

Root
    CMakeLists.txt
    SubA
        CMakeLists.txt
        some files to be built...
    SubB
        CMakeLists.txt
        some files to be built...

假设我add_library(SubDirLib fooX.cpp)在SubA/CMakeLists.txt其中X 分别是 A 和 B ，SubB/CMakeLists.txt我如何链接两个库SubA/SubDirLib和？请注意，如果我打电话，它将是名称冲突SubB/SubDirLibRoot/CMakeLists.txt

add_subdirectory(SubA)
add_subdirectory(SubB)

在Root/CMakeLists.txt