I don't think graphics/djview4 needs to USE_GROFF. Two manpages come with the package: /usr/local/man/cat1/djview.0 /usr/local/man/cat1/nsdejavu.0
With djview.1, mandoc -Tlint complains about a verbatim date, lot of end-of-line whitespace, an unterminated quote, an empty PP, and an unknown font for TS fB; gmdiff shows some +empty lines, - +--------------------------------------------------------------+ + +==============================================================+ which are used as useless table borders in the manpage, - |KKeeyy AAccttiioonn + |KKeeyy Action and - This program was written by Lon Bottou <le...@users.sf.net> + This program was written by L'eon Bottou <le...@users.sf.net> where the source spells the author as "L\('eon". There are no -Werror's. With nsdejavu.1, mandoc -Tlint complains about a verbatim date and a lot of end-of-line whitespace, but no -Werror's; gmdiff shows a few +empty lines and "L'^Heon" vs "Lon", as above. Does any of that prevent the removal of USE_GROFF? Jan Index: Makefile =================================================================== RCS file: /cvs/ports/graphics/djview4/Makefile,v retrieving revision 1.24 diff -u -p -u -p -r1.24 Makefile --- Makefile 12 May 2015 19:48:57 -0000 1.24 +++ Makefile 22 Sep 2015 15:10:04 -0000 @@ -5,7 +5,7 @@ SHARED_ONLY= Yes COMMENT= portable DjVu viewer and browser plugin DISTNAME= djview-4.10.3 -REVISION= 0 +REVISION= 1 PKGNAME= ${DISTNAME:S/djview/djview4/} CATEGORIES= graphics print @@ -30,7 +30,6 @@ RUN_DEPENDS= devel/desktop-file-utils \ x11/gtk+3,-guic USE_GMAKE= Yes -USE_GROFF = Yes CONFIGURE_STYLE=gnu CONFIGURE_ARGS= --with-tiff=${LOCALBASE} CONFIGURE_ENV+= QTDIR="${MODQT4_QTDIR}" \