On 2023-12-01 15:37, Jan Engelhardt wrote: > On Friday 2023-12-01 21:13, Mike Frysinger wrote: >> On 17 Jul 2023 16:51, Karl Berry wrote: >>> Hi Jan, >>> >>> Current automake likely won't have anything in store already, >>> >>> Not that I know of. >>> >>> a_SOURCES = $(addprefix aprog/,main.c foo.c bar.c baz.c) >>> >>> I've often wanted this myself. I'd certainly welcome a patch for it. >>> >>> Please work from automake trunk. None of the various branches are kept >>> to date. (Sad but that's the reality.) >> >> prob stating the obvious, but $(addprefix) is a GNUism, so if we wanted to >> use it, it'd required feature probing at configure time, and that always >> complicates things :( > > No-no, the idea was to make $(addprefix) an automakeism that is resolved > before > GNU make (or any other make) is ever invoked.
I suggest inventing a new syntax if this approach is taken, one that doesn't overload real-world make syntax, since some people do use Automake with GNU-make-specific rules and whatnot. We already have things like %reldir% which are expanded by Automake so maybe using percent signs as a marker for "things expanded by automake" would be a good starting point for this. I do sometimes wish Automake had more built-in macro facilities. One can do things like generate includeable snippets or preprocess Makefile.am with, say, m4, but that adds a bunch of additional complexity which is not always worthwhile. Cheers, Nick
