There’s a number of packages out there that assume you are using the GNU versions of ls, wc, and so on.  However, you aren’t when using a BSD system.  Pkgsrc has historically dealt with this when GNU tools are needed for a package by prefixing them with a ‘g’.  ‘ls’ becomes ‘gls’, and so on.  Aleksey Cheusov proposed a fix to keep these utilities under their original names, which I think will go into the next quarterly pkgsrc release.