This looks like work for your code generator instead of make. The code generator could do a diff before replacing the file. Make would have to keep a backup copy of the last time it built with that file, increasing complexity and time for normal builds.
I'd recommend against this. -- Lawrence From: bug-make-bounces+libarria=nvidia....@gnu.org [mailto:bug-make-bounces+libarria=nvidia....@gnu.org] On Behalf Of Raman Gopalan Sent: Monday, February 13, 2012 1:38 PM To: psm...@gnu.org; bug-make Subject: Content tracking mode for make Hello, I am Raman, a student. I am currently working with code generation for a microcontroller. I was wondering if it is possible to support a new mode on make which tracks dependancy content instead of timestamps. Somtimes, it is possible that a code generator replaces the existing files in the code base with the same content. It might be a good option to enable content checking before make rebuilds the replaced file (with the same content) again. I could certainly add this option. Could you please give me some guidance to proceed? Am I in the right direction? Awaiting your response, Regards, Raman
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