Exclude options in slave ports that are implied by other default options.

[bdrewery]

Summary

See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207460 for example.

Test Plan

make -V OPTIONS_DEFAULT in devel/git-lite

[mat]

I'm sure there's a reason, but couldn't something like this work:

.for opt in ${_ALL_EXCLUDE}
_ALL_EXCLUDE+= ${${opt}_IMPLIES}
.endfor

[bdrewery]

In D5538#118229, @mat wrote:

I'm sure there's a reason, but couldn't something like this work:

.for opt in ${_ALL_EXCLUDE}
_ALL_EXCLUDE+= ${${opt}_IMPLIES}
.endfor

I haven't tested but I think this would essentially try to expand a variable name with spaces: ${PERL GIT P4} rather than ${PERL} ${GIT} ${P4}.