Re: [bgl-discuss] blrts_xlc and configure

[Robert Latham <robl@xxxxxxxxxxx>]

On Tue, Feb 08, 2005 at 12:19:20AM -0600, Boyana Norris wrote:
> When I use the blrts_xlc script instead of xlc directly, configure is 
> unable to determine the size of short (and crashes, I haven't had time 
> to investigate which of the three abnormal exits happens). Has anyone 
> run into this problem? The relevant ac macro is AC_CHECK_SIZEOF(short), 
> and this particular configure is in netCDF 3.6.0, generated using 
> autoconf version >= 2.59.

Guess i'm a little late to the party...

We ran into a problem like this with PVFS2. If we run configure like
this: 

configure --build powerpc32-unknown-gnu --host powerpc-suse-linux

then through some magic i don't fully understand autoconf does not use
runtime tests to figure out sizes.  

The problem is that while it appears the triplet should be 

powerpc-bgl-blrts 

I cannot find a config.guess and config.sub anywhere on the machine
that understands this triplet.  It should exist -- that's the triplet
on ibm's toolchiain.   powerpc32-unknown-gnu is just a guess. 

==rob

-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA                B29D F333 664A 4280 315B

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