64 Support on Mac, FreeBSD

[Brad Roberts]

On 5/6/2011 9:58 PM, dsimcha wrote:
> Purely out of curiosity (as in I personally have no pressing need for it), what are the main roadblocks to DMD
> supporting 64-bit on Mac OS and FreeBSD?  I understand that on Windows we'd need a new linker, etc, but IIUC FreeBSD and
> Mac OS use GCC like Linux does.

For freebsd, almost nothing since it's all elf and uses the gnu tool chain largely as is.  I've already done a first
pass test of it and the results were extremely promising.  Maybe the next release can have it.

For OSX, it's more work since it's not elf based and they diverge fairly far from a pure gnu tool chain.  At a minimum,
the ability to write out macho 64 bit .o files.  Probably more, but hopefully not a lot more.  It'll be a lot easier to
assess after that part is done I suspect.

Later,
Brad