MANPATH setting is fragile - Redmine #3219

Archive from user: Jellby empty

In Ubuntu 18.04, with TeXLive, I have:

$ echo $MANPATH
:/usr/local/texlive/2019/texmf-dist/doc/man

After sourcing GMXRC.bash:

$ . /usr/local/gromacs/bin/GMXRC.bash
$ echo $MANPATH
/usr/local/gromacs/share/man:/usr/local/texlive/2019/texmf-dist/doc/man
$ man bash
No manual entry for bash
See 'man 7 undocumented' for help when manual pages are not available.

It seems GMXRC.bash assumes that MANPATH will be empty or end with a colon, but in my case it starts with a colon.

See #2628 and https://mailman-1.sys.kth.se/pipermail/gromacs.org\_gmx-users/2007-January/025471.html, and man manpath.

(from redmine: issue id 3219, created on 2019-11-29 by gmxdefault)