hsshellscript @2.1.0_1 (devel) 'cannot satisfy -package util' and build errors

[twilsonco@…]

When installing hsshellscript @2.1.0_1 (devel), errors start on line 378 of attached log file.

*Note that dependency 'hs-language-c' is pending an update from v0.4.2_5 to v0.4.7 (per #47121), so you may encounter an error with hs-language-c before the build of hsshellscript begins.

Section with errors (from line 374):

:info:build <command line>: cannot satisfy -package util
:info:build     (use -v for more information)
:info:build <command line>: cannot satisfy -package util
:info:build     (use -v for more information)
:info:build make: *** [build/HsShellScript/Paths.o] Error 1
:info:build make: *** Waiting for unfinished jobs....
:info:build make: *** [build/HsShellScript/Shell.o] Error 1
:info:build make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_hsshellscript/hsshellscript/work/hsshellscript-2.1.0'
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_hsshellscript/hsshellscript/work/hsshellscript-2.1.0" && /usr/bin/make -j8 -w   
:info:build Exit code: 2
:error:build org.macports.build for port hsshellscript returned: command execution failed
:debug:build Error code: CHILDSTATUS 40393 2

[neverpanic (Clemens Lang)]

Unfortunately upgrading hsshellscript to a newer version isn't as easy, because it uses mntent.h, a header file not available on OS X. I'll have to patch the code to fix this, but I'd rather do it right and get it included upstream than quick and dirty (the latter is easy, the former not so much).