[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: testing of CVS Autoconf
From: |
Paul Eggert |
Subject: |
Re: testing of CVS Autoconf |
Date: |
Wed, 29 Mar 2006 16:34:26 -0800 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
Ralf Wildenhues <address@hidden> writes:
> What would tar need? The value of $ac_shiftbits and $ac_signbits
> as `#define's?
Only shiftbits. C source code can compute signbits itself, with the
expression ((type) -1 < 0).
The tricky bit here is that ac_shiftbits is not always calculated, and
we don't want to calculate it if we don't need it, as it's expensive
to calculate.