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Re: Build failures on kernel version changes

On Sun, Jan 15, 2012 at 04:51:42PM +0000, David Holland wrote:
> Aren't they also used during configure? A lot of configure scripts do
> inane things like
>    Checking for socket -lsocket... no
>      :
>    Checking for socket in -lsocket... (cached) no
>      :

No. It's only used, if available, to pre-fill ac_cv_* variables which
are used during a configure run. The cache files are dumps of those
variables to speed-up any configure rerun.

> although I don't know if gcc and binutils do.
> (also, is there a reason they block user-specified cache files? if
> not, can that be altered easily?)

No idea about the reason for this behavior. But We need to hack custom
shell code from and regen configure, or alter configure
directly, to change it.

Nicolas Joly

Projects and Developments in Bioinformatics
Institut Pasteur, Paris.

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