local.config template unfortunate

[kpoeck]

Hello,

the last 3 definition should be (correct)
export GC_INCLUDE = /opt/clasp-support/include/
export GMP_INCLUDE = /usr/local/include/
export BOOST_INCLUDE = /usr/local/include/boost/

and not (wrong)
export GC_INCLUDE = /usr/local/Cellar/bdw-gc/8.0.4/include/
export GMP_INCLUDE = /usr/local/Cellar/gmp/6.2.0/include/
export BOOST_INCLUDE = /usr/local/Cellar/boost/1.72.0_1/include/

we recommend to use boehm from https://github.com/clasp-developers/clasp-boehm, but the supplied value points to bdwgc from brew

The later 2 export point to specific version of the tools via brew, e.g. boost is already at another version