I am posting a similar question on the Debian user list:
I install the latest development version of Lily as soon as a new one comes out. The last step in the installation is creating a link to the binary of lilypond I have unpacked. About 70% of the time a link command like the following works (after removing the previous version's link).
sudo ln -s /usr/local/bin/lilypond ~/Lilypond/lilypond2.25.32/bin/lilypond /usr/local/bin/lilypond
Currently the result is lilypond -v executing the stable version which is also installed.
TIA for any help, Paul
