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On 24 Jun 2016 18:31, Florian Weimer wrote: > On 06/24/2016 06:10 PM, Mike Frysinger wrote: > > On 24 Jun 2016 13:24, Florian Weimer wrote: > >> On 06/11/2016 12:27 AM, Roland McGrath wrote: > >>> eval is a pretty horrible feature and I'd probably object to introducing > >>> any uses of it into libc's makefiles. We already have lots of things that > >>> might have been done that way, but are instead done with generated makefiles. > >> > >> I would like to put this into malloc/Makefile: > >> > >> $(foreach t,$(tests),$(eval CFLAGS-$t.c += -DTEST_NO_MALLOPT)) > >> > >> What's the alternative for adding a -D flag to every test compilation in > >> a subdirectory? > > > > maybe something like (untested): > > CPPFLAGS += $(if $(filter $(@F),$(tests)),-DTEST_NO_MALLOPT) > > Hmm, right. It's relying on the delayed expansion. Not sure how this > is less evil, though. It also has at least quadratic run-time behavior. what about using target-specific variables and relying on inheritance [1] ? does this work ? $(tests): CPPFLAGS += ... [1] https://www.gnu.org/software/make/manual/html_node/Target_002dspecific.html -mike
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