special character 'mc' not defined

[Alejandro Colomar]

Hi Branden,

I'm linting the Linux man-pages in a different computer, where I only
have groff-1.23.0 installed from the Debian package, and I'm getting
more warnings than in my everyday computer (where I have both 1.23.0
from Debian Sid, and groff from git HEAD built from source).

System with only groff-1.23.0 from Debian Sid repositories:

        $ touch man7/units.7
        $ make lint check
        PRECONV         .tmp/man/man7/units.7.tbl
        TBL             .tmp/man/man7/units.7.eqn
        EQN             .tmp/man/man7/units.7.cat.troff
        TROFF           .tmp/man/man7/units.7.cat.set
        troff:man7/units.7:26: warning: special character 'mc' not defined
        make: *** [share/mk/build/catman/troff.mk:26: 
.tmp/man/man7/units.7.cat.set] Error 1
        make: *** Deleting file '.tmp/man/man7/units.7.cat.set'

System with both (the one built from source is in /usr/local/):

        $ touch man7/units.7
        $ make lint check # TROFF=/usr/local/bin/troff
        MANDOC          .tmp/man/man7/units.7.lint-man.mandoc.touch
        GREP            .tmp/man/man7/units.7.lint-man.tbl.touch
        PRECONV         .tmp/man/man7/units.7.tbl
        TBL             .tmp/man/man7/units.7.eqn
        EQN             .tmp/man/man7/units.7.cat.troff
        TROFF           .tmp/man/man7/units.7.cat.set
        GROTTY          .tmp/man/man7/units.7.cat
        COL             .tmp/man/man7/units.7.cat.grep
        GREP            .tmp/man/man7/units.7.check-catman.touch
        $ touch man7/units.7
        $ make lint check TROFF=/usr/bin/troff 
        MANDOC          .tmp/man/man7/units.7.lint-man.mandoc.touch
        GREP            .tmp/man/man7/units.7.lint-man.tbl.touch
        PRECONV         .tmp/man/man7/units.7.tbl
        TBL             .tmp/man/man7/units.7.eqn
        EQN             .tmp/man/man7/units.7.cat.troff
        TROFF           .tmp/man/man7/units.7.cat.set
        GROTTY          .tmp/man/man7/units.7.cat
        COL             .tmp/man/man7/units.7.cat.grep
        GREP            .tmp/man/man7/units.7.check-catman.touch

No warnings in this latter system.  Why?

Have a lovely day!
Alex

-- 
<https://www.alejandro-colomar.es/>
Looking for a remote C programming job at the moment.

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