[pyre]

  | LLVM is still fighting GCCisms

And yet this doesn't affect everything. Didn't Apple switch from gcc to the Intel C compiler? Does the Intel C compiler implement all of gcc's quirks?

[glasshead969]

Apple switched to LLVM from GCC. Chris Lattner, LLVM primary author works for Apple.

[pyre]

IIRC, I remember talk of Apple switching to the Intel C compiler ~ a year or so after the Intel switch. I'm not an Apple dev, so I don't have first-hand knowledge.

[dottrap]

No. I am an Apple dev. At least publicly, this never happened.

But Intel did have a presence at WWDC when the Intel switch announcement was made. Intel was trying to sell developers licenses to the Intel compiler (as they should).

[azakai]

Of course it doesn't affect everything, nor does it make anything 100% impossible. It just makes it potentially much harder.

A huge corporation like Apple will typically be able to overcome the additional effort.