Question

I have the following implicit rule in a makefile:

a1 b1: %: %.o

On invocation, this will look for the prerequisites a1.o and b1.o. Instead, I want to replace these prerequisites with a.o and b.o. I’ve played a bit with subst and $(shell) but no luck. Is it possible to do this?

Answer 1

For the limited case:

a1 b1: %1: %.o

Alternatively:

a1 : a.o
b1 : b.o
a1 b1:
    <the recipe>