CmakeList: Dependencies for static libraries - c++

Question

Let's imagine we have two static libraries which are separate projects:
################################################
# Logger library ###############################
set(Logger_INCLUDE_DIRS Logger/include)
set(Logger_LIBRARIES Logger)
add_library(Logger STATIC
${PROJECT_HEADERS}
${PROJECT_RESOURCES}
${PROJECT_SOURCES}
${MISC}
)
target_include_directories(Logger
PUBLIC
include
)
################################################
# Utils library ################################
add_library(Utils STATIC
${PROJECT_HEADERS}
${PROJECT_RESOURCES}
${PROJECT_SOURCES}
${MISC}
)
Utils library depends on Logger library for logging
Which of these ways will be right to provide Logger sources for Utils library or they are both incorrect and I need to use another one
I have two options here, first one is to provide only *.h file, as far as understood it is enough for static library:
target_include_directories(Utils
PUBLIC
include
${Logger_INCLUDE_DIRS}
)
The other one is to use target_link_libraries, as far as I understood *.h files are linked too but in general we do not need to link one static library with another one and this is redundant:
target_link_libraries(Utils
${Logger_LIBRARIES}
)

Answer 1

Use target_link_libraries whenever one library/executable target uses another library target. Do not think about redudancy of linking static libraries.
In CMake, linking targets is much more than simple linking libraries. Large part of CMake is propagating libraries properties when linking. Just use that.
Also, if you will decide to transform your STATIC library into SHARED, using target_link_libraries provide no additional actions in such transformation.