h5diff issues "unable to read attribute" error message when comparing
two files
Description:
h5diff did not handle attributes of variable length strings
correctly. It created the wrong memory type if one but not both
compared attributes are of the variable strings type. It ended in
H5Aread() failure.
Solution:
We decided to treat the case when one type is variable length string
and the other is not as incomparable. That bypassed the above error.
We still need to figure out the proper way, if possible, to compare
variable string with non-variable string types.
Tested: h5committested plus tested in Swallow (OS X 10.8).
Convert configure.in to configure.ac.
Align TESTS usage with autotools convention.
Update all references from configure.in to configure.ac
Tested: h5committest
