I'm aware of that, but do you get blocks?

Eg on Debian: apt-get install libblocksruntime0 libblocksruntime-dev

http://compiler-rt.llvm.org/

Indeed, I don't think you do:

  Blocks are supported for programs developed for Mac OS X
  10.6+ and iOS 4.0+,[1] although third-party runtimes
  allow use on Mac OS X 10.5 and iOS 2.2+.[2]

http://en.wikipedia.org/wiki/Blocks_(C_language_extension)

That page does mention Linux in one section: https://en.wikipedia.org/wiki/Blocks_%28C_language_extension...

That's really annoying; the headline claims one thing and the later text clearly contradicts.

Regardless, both of you appear to be correct:

  BlocksRuntime - a target-independent implementation of
  Apple "Blocks" runtime interfaces.

http://compiler-rt.llvm.org/

You do, I've used them on Linux myself.