I see this as well when trying to compile fontconfig 2.8.0 (don't ask why!).
Hope the following sheds some light on the issue, please advise. Antony docbook2man -o devel-man local-fontconfig-devel.sgml && \ mv devel-man/manpage.refs func.refs && \ mv devel-man/*.3 . && \ rm -f devel-man/manpage.* && \ rmdir devel-man /usr/share/docbook-utils/frontends/docbook: 9: [: sgml: unexpected operator Using catalogs: /etc/sgml/catalog Using stylesheet: /usr/share/docbook-utils/docbook-utils.dsl#print Working on: /home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml nsgmls:/home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml:1:58:W: cannot generate system identifier for public text "-//OASIS//DTD DocBook V3.1//EN" nsgmls:/home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml:23:0:E: reference to entity "ARTICLE" for which no system identifier could be generated nsgmls:/home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml:1:0: entity was defined here nsgmls:/home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml:23:0:E: DTD did not contain element declaration for document type name nsgmls:/home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml:47:8:E: element "ARTICLE" undefined nsgmls:/home/antonyglocal/src/git/xrdp/xorg/X11R7.6/build_dir/fontconfig-2.8.0/doc/local-fontconfig-devel.sgml:48:7:E: element "TITLE" undefined -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org