xorg-xcb-util: build fails on Lion

[mojca (Mojca Miklavec)]

Building the port fails on 10.7 with

/usr/bin/make -j4 all
Making all in src
/usr/bin/make  all-am
  CC     atoms.lo
atoms.gperf:36: error: duplicate ‘static’
atoms.gperf:38: warning: function declaration isn’t a prototype
atoms.gperf: In function ‘hash’:
atoms.gperf:40: warning: old-style function definition
atoms.gperf: At top level:
atoms.gperf:243: warning: function declaration isn’t a prototype
atoms.gperf: In function ‘in_word_set’:
atoms.gperf:245: warning: old-style function definition
make[2]: *** [atoms.lo] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1

I don't understand details about the failure, but the same change as this one

r80371

(changing llvm-gcc into clang) fixed the problem for me.

I would like to ask for the patch if possible.