=> Bootstrap dependency digest>=20010302: found digest-20180917
=> Checksum SHA1 OK for stockfish-9-src.zip
=> Checksum RMD160 OK for stockfish-9-src.zip
=> Checksum SHA512 OK for stockfish-9-src.zip
===> Installing dependencies for stockfish-9
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Tool dependency checkperms>=1.1: found checkperms-1.12
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
===> Overriding tools for stockfish-9
===> Extracting for stockfish-9
===> Patching for stockfish-9
===> Creating toolchain wrappers for stockfish-9
===> Configuring for stockfish-9
=> Checking for portability problems in extracted files