Cannot find BCG729 Package when building cmake

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When invoke cmake getting errors as

-- Checking for one of the modules 'bcg729'
-- Could NOT find bcg729 (missing:  BCG729_INCLUDE_DIR) 
-- BCG729 NOT FOUND

I download source codes of BCG, and move header files to /usr/local/include/bcg729 and *.so to /usr/local/lib/

Somehow the cmake cannot find them?

Thanks, Colleen Chen