Correction to Makefile

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Adding -p just preserves the modification times, the copy will still happen.

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Yes, true. I should have been clearer that the time-stamp remains the same and therefore dependencies on the lib(s) don't build unnecessarily. That was the point - to stop unnecessary builds and backups.

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make should only be running the command if ${LIB} is older than ${ACTIVE_CONFIG_LIB} - so that should suppress the code when not needed.

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Which I don't understand because it's the same 2 targets of the CP. How could they be different if the LIB wasn't built? And it isn't because AR isn't run. I didn't understand the problem but still I wanted a solution. I'm obviously not a make expert.

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So something else funny must be going on, possibly another dependency line somewhere.

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I agree

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What you might need is something that only updates the config file if it has actually changed - that needs to be done before the makefile above is run.

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Rebuilds occur (because of the CP) even if the config isn't changed. With the -p it still works if the config *is* changed. Although I don't understand the failure the solution (work around) is sound.

Thanks for replying,

Bill