[vsipl++] [PATCH] switch to --with-fft=...

[Jules Bergmann]

Nathan (Jasper) Myers wrote:
> 
> Also, if you're configuring in IPP, you'll need to add one of
> 
>   --with-ipp-suffix=
>   --with-ipp-suffix=em64t
>   --with-ipp-suffix=m7
> 
> or what-have-you, according to your IPP installation.
> 

Nathan,

Is there a reason for requiring a suffix?

If by default we search ipps.so (no suffix) and ippem64t.so, we'll do 
the right thing in most cases.  On ia32 systems, ipps.so will hit.  It 
is a dispatcher library that than detects the right processor specific 
library at runtime.  On em64t systems, ippsem64t.so will hit.  It is not 
clear from the IPP getting started page if it too is a dispatcher, but 
presumably it is.

Any objections to making the suffix optional?  This will let people need 
override the default when necessary, but not force everyone to set it.

				-- Jules