Install hiccups with groff 1.23.0 tarball

[Oliver Corff]

Dear All,

I wanted to have a better understanding of the current state of groff,
and downloaded groff-1.23.0 from
https://git.savannah.gnu.org/cgit/groff.git, following the link from
https://www.gnu.org/software/groff/#downloading.

So far so good, I downloaded the tarball, unpacked it, wanted to
configure everything, found no ./configure file. Found no INSTALL
instructions either. It did not come to my mind that the necessary
information is contained in INSTALL.REPO (my usual experience being that
all suffixed INSTALL.{xxx} files only contain typically
platform-specific information).  That hurdle taken, I ./bootstrap -ped,
duly installing all missing software which was required (among others,
git and libtool; I haven't done any compiling of source code since
around 2005, exactly when git entered the scene, so I completely missed
that).

Finally, no more complaints about missing pieces of software, but ... :

./bootstrap: Bootstrapping from checked-out troff sources...
./bootstrap: getting gnulib files...
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).

Here I've reached the end of my road. Dave suggested that I post this
message here.

Best regards,

Oliver.