CMake related changes in CMakeLists.txt files,
cmake_config.h.in. Other changes relate to
Windows-specific issues, and changes made
when regenerating generated source files.
(on windows platforms), resulting in a downstream SIGSEGV upon memory
allocation of 0 bytes. Gave nvdims a default value of 1. This may not
be the best possible fix, but in the short term it has fixed the issue.
The problem would occur when NetCDF was compiled with NetCDF-4 support,
on Windows, in 64-bit mode, and when nctest/nctest.exe would run.