Yes, GENIE does not currently build with clang. Tom's suggestion is below is correct - you need to install gcc on your own if you have Mavericks or Xcode 5. I used Homebrew and if you try that and run into trouble, let me know and I can send a log of my experiences.
I am thinking about tackling compilation under clang at some point soon. If anybody else would like to take a look at it also, let me know and we can share notes.
On Feb 20, 2014, at 6:08 AM, Tom Stainer <[log in to unmask]> wrote:
> Dear Leonidas,
> I was having similar problems on my Mac OS X 10.9.1. I solved this by installing gcc 4.8, this can be done with fink or brew, then make sure this is on your path $PATH before the Xcode path: /Applications/Xcode.app/Contents/Developer/usr.
> This is because os x now uses clang, I know this is the case for 10.9 and maybe the 10.8 also. GENIE does not seem to build properly with clang however.
> Hope this helps.