On 27 May 2015, at 17:20, Frank Loeffler <knarf@cct.lsu.edu> wrote:

On Wed, May 27, 2015 at 04:48:19PM +0200, Ian Hinder wrote:
This seems like a viable workaround until the problem is fixed in
HDF5, so I propose that it be implemented in CarpetIOHDF5 and
backported to the release branch.

I agree. For the record: was the problem reported to the HDF5 group?

Yes, and they have asked for a test case. I don't have time to produce one at the moment, and it really shouldn't be necessary. It is clearly wrong to undefine __attribute__ in a public header file.