Daniel-Constantin Mierla writes:
Grepping for that variable in the makefiles reveals
that it looks for
docbook2x-man or db2x_docbook2man.
Likely not available in your system, so either they were part of a
installed package or related dependency in the past, or just a new
package that needs to be added as build dependency.
In debian stretch, /usr/bin/docbook2x-man is in package docbook2x and
that package is NOT listed as build dependency in
pkg/kamailio/deb/stretch/control.
I added that package and the error was gone, but a new ones were
produced:
/usr/bin/docbook2x-man -s ../../../doc/stylesheets/serdoc2man.xsl auth.xml
auth.xml:7: warning: failed to load external entity
"../../../../doc/docbook/entities.xml"
%docentities;
^
Entity: line 1:
%docentities;
^
auth.xml:25: parser error : Entity 'kamailio' not defined
The <command>auth</command> module of &kamailio; provides basic
functional
^
auth.xml:208: parser error : Entity 'kamailio' not defined
can be divided into several partitions. Each &kamailio; process is assig
^
auth.xml:213: parser error : Entity 'kamailio' not defined
conditions. In the worst case, when only one &kamailio; process receive
^
auth.xml:532: parser error : Entity 'kamailio' not defined
separated by a comma. For challenges generated by &kamailio;, this
^
auth.xml:535: parser error : Entity 'kamailio' not defined
parameter will be present in challenges created by &kamailio;. This may
^
auth.xml:537: parser error : Entity 'kamailio' not defined
make your &kamailio; not comply with RFC 3261.
^
-- Juha