different link and load library paths using cmake

Question

I have two versions of the same library libabc.so , I have to link my program to one version, and load another version when it's executed (loader should load another library when executable is run).

I place the two versions in different paths, how can I specify that using cmake?

I hope I have made myself clear, thank you.

Answer 1

@Tsyvarev's comments basically gives the answer, here's a bit more detail.

Say the two versions for link and load are placed in link_path/libabc.so and load_path/libabc.so , the CMakeLists.txt should be like

...
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
set(CMAKE_INSTALL_RPATH load_path;${CMAKE_INSTALL_RPATH})  # load path

...
target_link_libraries(xxx link_path/libabc.so)  # link path