I pulled lilypond sources from git today, and while trying to figure out a botched configure invocation, I did a git clean -x -f, and now INSTALL.txt doesn't exist anymore...? I did a fresh git clone from git://git.sv.gnu.org/lilypond.git but same thing, INSTALL.txt seems to have gone missing?
What am I doing wrong? T -- It said to install Windows 2000 or better, so I installed Linux instead.