On Sunday, September 18, 2011 03:26:38 Wolfgang Denk wrote: > Mike Frysinger wrote: > > The top level Makefile does not do any recursion into subdirs when > > cleaning, so these clean/distclean targets in random arch/board dirs > > never get used. Punt them all. > > I think this is the wrong approach. Would it not be better to get rid > of the 60 lines of clean/clobber target in the top level Makefile, > including it's brute force methods of "find ... | xargs rm -f" and > actually remove the files from the Makefiles in the respective > directories instead? > > This would for example allow that a board maintainer can fix the clean > / clobber rules for his code without having to edit the top level > Makefile.
yes & no. i think we should have 1 clean/distclean target, but also have a way for board maintainers to inject their own custom clean files. preferably via a .mk file in their board subdir. this is moving in the direction of non- recursive make like the kernel does -- the top level would source all the subfiles to figure out the master clean list. however, the current build system has one advantage which i think we should retain in the short term: `make distclean` always cleans out the targets regardless of the current config. for example, if you do `make bf537-stamp` followed by `make harmony` followed by `make distclean`, Blackfin-specific objects will still get cleaned out. -mike
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