Dear all, Thank you all for your kind considerations to system integrators like me. :-D
I recently submitted a patch to Denemo to get its configure.ca to check for (hence support) guile-2.2 too because guile-2.0 is going away in Debian: * https://github.com/denemo/denemo/commit/9c6ad2d * https://github.com/denemo/denemo/blob/master/configure.ac#L103-L120 It appears Denemo has been using pkg-config and not guile-config. Not sure if it helps at all, but this is my 2 cents to the discussion. Thank you all so much for your hard work getting LilyPond 2.20.0 ready! It is in Debian now. Cheers, Anthony