Suppose you have a file generated-output that's built from feeding generator with input. generator itself is built from generator.sources.
I would like to ship generated-output (hence it's in srcdir), to spare the user the need to build it. I don't know how to do that without using .SECONDARY, which doesn't appear to be universal amongst makes. Is there a more portable solution? Here is a test case, under the form of a... test case :)
interm.test
Description: Binary data
It fails without the .SECONDARY.