Is it possible to have an array > 2 gb when compiling using the 64 bit version under a 64-bit version of Windows. The documentation is not exactly explicit about what is Unix specific, but e.g. -mcmodel=medium does not seem to be recognized by the 6.1 compiler under Windows.
Unfortunately, 64-bit Windows does not support the medium memory model so arrays can’t be larger than 2Gb. Note that this is an OS limitation, not a compiler limitation.