[boost] [typeof] patch for typeof.hpp

From: Boris Gubenko (Boris.Gubenko_at_[hidden])
Date: 2007-06-08 16:51:58

boost/typeof/typeof.hpp has conditionalization for the compilers
that do not support typeof extension. For such compilers, defining
BOOST_TYPEOF_NATIVE macro results in a "native typeof is not supported"
error.

The condition does not include aCC and cxx compilers. Since on the
platforms not supporting typeof extension "_native" subset of typeof
library tests is marked known failure, the test system does not flag
this omission: the "_native" tests fail to compile anyway.

Attached patch fixes this problem. Tested on Tru64 and HP-UX.

Ok to commit to HEAD?

Thanks,
  Boris