Problems compiling on os x 10.9

Hi,
I also moved to Mavericks recently:

uname -a
Darwin pb-d-128-141-141-192.cern.ch 13.0.0 Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT 2013; root:xnu-2422.1.72~6/RELEASE_X86_64 x86_64

I’ve followed the tricks as described above (Locate like command):

git clone root.cern.ch/git/root.git any-name-you-want
cd any-name-you-want
git checkout -t origin/v5-34-00-patches
./configure
make

I’ve also re-installed Xcode and XQuartz.
When compiling with clang++ (make), I still have these errors:

Generating dictionary core/base/src/G__Base1.cxx…
core/utils/src/rootcint_tmp -cint -f core/base/src/G__Base1.cxx …

Error: cannot open file “AvailabilityMacros.h” include/RConfig.h:376:
Warning: Error occurred during reading source files
Warning: Error occurred during dictionary source generation
!!!Removing core/base/src/G__Base1.cxx core/base/src/G__Base1.h !!!
Error: core/utils/src/rootcint_tmp: error loading headers…
make: *** [core/base/src/G__Base1.cxx] Error 1

Do I forget something?
Thanks,
francesca