Now the ngIRCd release/version number is deduced from the "current"
annotated GIT tag; see "git describe --help" for details. This is the
same scheme the Linux kernel uses and gives much more details version
numbers for interim releases and inofficial source archives generated
using "make dist".
Please note: the version number is only updated it the autogen.sh
script is run; so after pulling in and pushing out new commits, you
should run ./autogen.sh!
On some systems (for example Gentoo Linux, FreeBSD, and OpenBSD), these
variables are used to select which version of GNU automake and autoconf
to use, but we shouldn't depend on a specific version -- instead we
should use the "system default". So probably it is up to the user to
set these variables accordingly to set up some wrapper scripts of his
operating system distribution.