cmake: Don't assert when empty libraries are detected
The empty-library check was introduced because in earlier versions of
CMake the error message for empty libraries was very cryptic. But in
3.13.2 CMake now reports:
-- Configuring done
CMake Error at ../../cmake/extensions.cmake:357 (add_library):
No SOURCES given to target: drivers__entropy
Call Stack (most recent call first):
../../cmake/extensions.cmake:334 (zephyr_library_named)
../../drivers/entropy/CMakeLists.txt:1 (zephyr_library)
which should be clear enough.
In addition to being redundant, our empty library check is run earlier
than CMake's check, so it will falsely report libraries to be empty,
when in fact, in an out-of-tree driver use-case, they will not
actually be empty at Generation time.
CMake runs it's check at generation time and is not affected by this
problem, so we remove the check.
This is a step, but not a complete solution, to resolving #8379.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
1 file changed
