Answered Question

amazingmo

February 18, 2009 12:35 AM

How do I find the original target in a makefile?

My makefile can be invoked by any one of many top level makefiles. Some of the top level makefiles use a default target of 'lib', or 'releaselib', or 'debuglib'. When my makefile is invoked, I just know that 'lib' is a prerequisite of something, but I would like to be able to figure out the top-level target of the dependency tree.

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abbotofunr...

February 20, 2009 01:38 AM

Are you looking for your lower level makefile to behave differently depending on what the top-level target was? If so, I think you'd have to have the top-level make files export the target name into an environment variable and have your makefile read that (and check $(MAKELEVEL), too, if you're using gnumake).

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abbotofunr...

February 20, 2009 01:42 AM

I should have said that answer assumes you are calling make with $(MAKE) or something. It doesn't help if your top-level make file is getting the lower-level one through an include.

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