Ivan Grokhotkov 71a884571c cmake: add idf_component_optional_requires utility function ...

It can be used in component CMakeLists.txt files when adding "weak"
dependencies between component. A "weak" dependency from A to B is
similar to target_link_libraries(A PRIVATE B), but it gets added only
if B is included in the build.
Use it instead of specifying B as part of PRIV_REQUIRES when the
component can be built (even if with reduced functionality) without
component B being available.

2021-12-13 10:53:22 +01:00

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