Add LIB_PICO_FOO=1 build defines#374

Merged

kilograham merged 1 commit intodevelopfrom

pico_lib_build_defines

May 4, 2021

Commits on May 3, 2021

make all non hardware_ libraries foo add C preprocessor definition LIB_FOO=1, and remove bespoke definitions which were all undocumented anyway
kilograham
committed