llvm 2.3 + gcc-4.3?

In release notes for llvm-2.3 it says
LLVM now builds with GCC 4.3.

How can I try this?

Download llvm 2.3 and compile it using gcc 4.3. It doesn't mean that
llvm-gcc is now using gcc 4.3 or anything, just that the llvm codebase
now compiles without error using the gcc 4.3 compiler. The frontend
llvm-gcc version is still 4.2.

Neal Becker wrote:

In release notes for llvm-2.3 it says
LLVM now builds with GCC 4.3.

How can I try this?
  
When configuring llvm, explicitly set the compiler to use:
$ ./configure CC=gcc-4.3 CXX=g++-4.3

Or if your system default is already gcc 4.3, then doing just a regular
configure would use that.

Best regards,
--Edwin