Re: capturing the error log from rdma-core

[Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>]

On Mon, Oct 10, 2016 at 10:12:46AM -0600, Jason Gunthorpe wrote:
> On Mon, Oct 10, 2016 at 08:30:13AM -0700, Christoph Hellwig wrote:
> 
> > what's the best way to generate a log of the compiler errors with the
> > shiny new rdma-core build system?  With make I'd do make 2>err.log
> > but with the new build system the verbose build output and the errors
> > are mixed in the same stream, so this isn't possible anymore.
> 
> If I understand you, you want to split STDOUT and STDERR because
> sparse puts differentiated output on each FD?

No, sparse only outputs to SDTERR.  But for some reason the rdma-core
build system multiplexes this back into STDOUT.

> I think the simplest approach for you will be to use make when doing
> this kind of work:
> 
> $ mkdir build-make
> $ cd build-make
> $ CC=cgcc cmake
> $ make 1> a 2> b

Ok..
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