> On 18 May, 2020, at 9:37 AM, antlists <antli...@youngman.org.uk> wrote: > > define trombone-notes.ly as a target, define it as changed if its > dependencies change, and say "it doesn't exist as a file that can be created > with a command".
Right, that’s the step I’m trying to automate. Make itself cannot determine the list of prerequisites. You either need to do that manually (a real pain) or provide a tool that can examine a file, determine what its prerequisites are and then write them out in a way that make understands. From the manual for GNU Make: https://www.gnu.org/software/make/manual/html_node/Automatic-Prerequisites.html#Automatic-Prerequisites The example there uses the -M flag for a C compiler. I’m looking to come up with an equivalent for LilyPond. ✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝✝ Fr. Samuel, OSB (R. Padraic Springuel) St. Anselm’s Abbey 4501 South Dakota Ave, NE Washington, DC, 20017 202-269-2300 (c) 202-853-7036 PAX ☧ ΧΡΙΣΤΟΣ
