[CMake] No Native 64-Bit CMake Binaries?

[Richard Wackerbarth]

Bill,

As for the need of 64-bit binaries, I agree that it is not a performance issue.
However, it will be a compatibility issue. Things evolve. Remember MacOSX 10.0, 10.1? Back then, you could have argued that we didn't need a new version of CMake. The binaries from MacOS 9 ran just fine. Now, not only can you not run those binaries, but you cannot even run an MacOSX 10.5(ppc) program on 10.6. Even though that worked just fine on 10.5(Intel), it is no longer supported.
Similarly, libraries get updated and, in the process, drop compatibility with "ancient" configurations. Since the hardware is clearly moving toward 64-bit, I don't expect it to be too long before we start seeing 32-bit compatibility "rotting".

Richard

On May 6, 2010, at 7:17 AM, Bill Hoffman wrote:

> Perhaps I am missing something, but I have yet to see a good argument for why a 64 bit CMake would be needed for any reason.
> 
> -Bill