Hi,
I am not sure to understand something.
- Context:
I have separate folders, each one having header/source files and a CMakelist.txt. Each CMakelist defines a project. They are created with:
add_library(${APP_NAME} STATIC ${SOURCES})
–Folder_A
— libA.a
–Folder_B
— libB.a
Now, libB.a references libA.a inside its CMakelists.txt, with:
target_link_libraries(${APP_NAME} PUBLIC ${Apps_folder_root}/Folder_A/libA.a)
The goal is to create multiple small libs that I reuse in other projects.
I need them to be static because from the final environment, I only know the architecture and OS my code will be running on. Embedding everything in one package is easier.
- Question:
I added a “cout << “test” << endl;” in my libA sources and recompiled that library ONLY using ninja in the libA build directory.
I created an app which references the two libs:
add_executable(${APP_NAME} ${SOURCES} main.cpp )
target_link_libraries(${APP_NAME} PUBLIC ${Apps_folder_root}/Folder_A/libA.a)
target_link_libraries(${APP_NAME} PUBLIC ${Apps_folder_root}/Folder_B/libB.a)
In that final app, the prints appear. Note, I didn’t recompile libB.a
Did the linker erase the version of libA it found in libB, and just replaced it with the original (and updated) version?
I get that static libraries should copy the objects in their archive. So what happened here?
Is it an expected behavior with target_link_libraries?
Thanks,
