I just tried to checkout the git repository of Bison in an attempt
to build it, but it wasn't immediately obvious how to do that, and I
didn't have much the time dig more.
README-hacking gives instruction that don't work.
First I think it should refer to git and not CVS.
Then running ./bootstrap directly after the checkout as suggested
simply results in :
% ./bootstrap
./bootstrap: Bootstrapping from checked-out bison sources...
./bootstrap: line 316: gnulib/gnulib-tool: No such file or directory
Yet there is no mention of a gnulib requirement in README-hacking.
It's also confusing that there are two HACKING and README-hacking
files. It's not clear to me what's the difference, and I almost
missed the latter.