How to reliable detect a MacPorts-ported compiler?

[Ryan Schmidt]

On Sep 7, 2015, at 8:43 PM, Jeffrey Walton wrote:

>>> For Apple, we can detect Apple ported gear with:
>>> 
>>> $ clang++ -dM -E - < /dev/null | grep -i apple
>>> #define __APPLE_CC__ 6000
>>> #define __APPLE__ 1
>>> #define __VERSION__ "4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)"
>>> #define __apple_build_version__ 5030040
>> 
>> Well, that's clang, not gcc.
> 
> Right, but the APPLE_CC tells me its an Apple port.

Right: it tells you it is an Apple fork of that compiler.

MacPorts does not fork things. We package the original thing.