rm -f ~/R/packages/$1/[A-d]*/src/symbols.rds
rm -f ~/R/packages/$1/[A-d]*/src/*.so
rm -f ~/R/packages/$1/[A-d]*/src/*.mod
rm -f ~/R/packages/$1/[e-z]*src/symbols.rds
rm -f ~/R/packages/$1/[e-z]*/src/*.so
rm -f ~/R/packages/$1/[e-z]*/src/*.mod

find ~/R/packages/$1 -name \*.o -delete