Looks like we need to update hdf-4.2r1-ppc.patch to add support for ppc64.  Can
someone take a look at that patch and hdf/src/hdfi.h and see what would make
sense for ppc64? 

I've try.
Give me couple of hours.

Ughh..

Fixed couple of things, but netcdf tests still not pass.
I attach the patch, maybe you will look into too.

/me wonder how debian *just* build this for ppc64 without tests .....

Created attachment 154516 [details]
powerpc64 support

Preliminary powerpc64 support, however netcdf stuff need more fixing.

Yup !
http://koji.fedoraproject.org/koji/taskinfo?taskID=6319
builded fine.

grab from here:
SRPMS: http://openrisc.rdsor.ro/hdf-4.2r1-13.fc7.src.rpm

BTW,

1) keep in mind i disable one of subtest to pass over buggy netcdf tester 
routine ...

2) i would love to fix this since hdf render my ogdi,gdal,grass,mapserver 
unbuildable for fedora ppc64, and those will be excluded from release, so
if can please rebuild hdf.

PS:

all other test should now be fined, there was tons of failures before, i fix 
all tham except netcdf ... (i wonder netcdf why was imported in hdf)

Thanks!  Checked in and built as hdf-4.2r1-14.fc7.