[yt-dev] Install script issue

[Andrew Myers]

Thanks! That looks great.

On Tue, Apr 3, 2012 at 10:40 AM, Matthew Turk <matthewturk at gmail.com> wrote:

> Cool.  I committed this in 2af699ff04a4.
>
> On Tue, Apr 3, 2012 at 11:49 AM, Andrew Myers <atmyers at berkeley.edu>
> wrote:
> > Hi Matt,
> >
> > Yeah, I think that would be great. This was actually on the Berkeley
> Astro
> > department cluster Henyey, so I'm not sure how immediately relevant a
> > specific warning would be to people at other institutions, but a note
> that
> > having something in CFLAGS can potentially mess up your h5py module could
> > save people some time down the road.
> >
> > -Andrew M
> >
> >
> > On Tue, Apr 3, 2012 at 6:34 AM, Matthew Turk <matthewturk at gmail.com>
> wrote:
> >>
> >> Hi Andrew,
> >>
> >> Sorry for the delay in replying, and thanks for reporting this.  Do
> >> you think it would be sufficient to just detect if CFLAGS is not empty
> >> and report that to the user, noting that it could cause issues?
> >>
> >> Also, if you don't mind my asking, which supercomputer was this?  We
> >> can put a note in the script about the modules.
> >>
> >> -Matt
> >>
> >> On Fri, Mar 30, 2012 at 9:45 PM, Andrew Myers <atmyers at berkeley.edu>
> >> wrote:
> >> > Hello yt developers,
> >> >
> >> > I don't know if this is a "bug," exactly, but I noticed an issue when
> >> > doing
> >> > a clean install of yt today involving the h5py install. Namely, it
> looks
> >> > like if you have an non-empty CFLAGS environment variable (which can
> >> > happen
> >> > without your knowledge if you load certain module files in a
> >> > supercomputing
> >> > environment, for example), the h5py build will proceed without getting
> >> > the
> >> > "-fno-strict-aliasing" flag and the resulting module will not work.
> You
> >> > can
> >> > get around this either by 1) clobbering CFLAGS, or 2) adding
> >> > "-fno-strict-aliasing" to it and re-running the script.
> >> >
> >> > It seems like the install script should either detect this and work
> >> > around
> >> > it, or else warn you that the h5py build has gone of the rails after
> the
> >> > installation, because the tracebacks you get from trying to use the
> >> > whacked-out h5py module are not very illuminating. I would do this
> >> > myself,
> >> > but I'm not sure my shell scripting skills are up to the task.
> >> >
> >> > Thanks,
> >> > Andrew
> >> >
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> >> >
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> >
> >
> >
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