[ccache] Why not cache compile failures?

Justin Lebar justin.lebar at gmail.com
Tue Sep 18 08:34:28 MDT 2012

> I'm looking at ways to improve compile speed, and one obvious option is to
> cache compile failures. I'm thinking of certain non-called-for-link autoconf
> tests, in particular.

Doesn't autoconf have a cache of its own?

Anyway, ccache makes running the compiler faster.  In the cause of
giving the compiler a small program to compile to test a feature,
surely running the compiler takes virtually zero time, and the
overhead is elsewhere.


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