Re: [bgl-discuss] blrts_xlc and configure

[Boyana Norris <norris@xxxxxxxxxxx>]

Satish Balay wrote:

> On Tue, 8 Feb 2005, Anthony Chan wrote:
>
>  
>
> > chan/ts_C> a.out
> > fopen does not create any file.
> >
> > Without linking with rts libraries, the above program works.  
> >    
>
> Its not the 'rts' libraries. blrts_xlc doesn't use any rts libraries.
> And this example code gives the same error with it. [and the gcc cross
> compiler]
>
> login2 balay/junk> /bgl/BlueLight/DRV521_2004-050113/ppc/blrts-gnu/bin/powerpc-bgl-blrts-gnu-gcc file-test.c
> login2 balay/junk> ./a.out
> fopen does not create any file.
> login2 balay/junk> blrts_xlc file-test.c
> login2 balay/junk> ./a.out
> fopen does not create any file.
> login2 balay/junk>
>
> I guess it just that - with crosscompiling [which is what we are doing
> on the bgl] - you can't expect the binaries to run on the front end
> node. trivial examples happen to run on the front-end nodes - due to
> the many similarities between frontend/compute nodes.
>  

So is hacking an apps' configure and/or source the only way to port that 
app? If I run configure with --host and --target options, a number of 
variables used are not defined... Sounds very app-specific, but I was 
hoping there may be some more general approach or FAQ-like info.

Boyana

> Satish
>
>  

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