On 03/17/2012 03:34 AM, Jim Meyering wrote: > Since I rarely configure without using a cache, I suspect > that the speed difference will be negligible for me. > > On the other hand, for most people, even a speed-up of just > a few seconds would probably be welcome. > > How about a compromise: leave the code there, but guard it with > some new envvar setting that is normally off. > Then add something to my-distcheck so that for at least one > ./configure run it is enabled. That will preserve the safety net > *and* save most people the cost of those added tests.
Cool idea - I'm playing with an m4_syscmd wrapper that conditionally invokes the macro based on the current environment of the autoconf process, as well as the counterpart to cfg.mk that sets the envvar. -- Eric Blake [email protected] +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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