On Tue, Feb 15, 2011 at 12:54:49AM -0600, Jonathan Nieder wrote:
>
> Ian Lynagh wrote:
>
> > With the attached Makefile, make 3.80+3.81.b4-1 is much slower than
> > 3.80-9 at running "make -wr stage1/ghc-6.4.1" (only a few seconds in the
> > cutdown case, but more in the real thing - I never waited for it to
> > terminate to know how much more).
>
> Just because I'm curious: did ghc ever learn to work around this?
Yes:
Mon Feb 27 10:59:39 GMT 2006 Simon Marlow <simon...@microsoft.com>
* remove empty .SECONDARY target
This works around a problem with recent versions of GNU make that take
a long time when all targets are declared intermediate with
.SECONDARY. See
https://savannah.gnu.org/bugs/?func=detailitem&item_id=15584
for discussion of the GNU make issue.
-
-# This line prevents GNU make from deleting any intermediate targets:
-
-.SECONDARY:
Thanks
Ian
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