From: baldrick on
I made a mistake in the instructions for building llvm-gcc with Ada
support (http://llvm.org/docs/GCCFEBuildInstrs.html): you need to use
the 2005 GNAT GPL edition if you are building the LLVM 2.2 release,
not the 2006 edition as originally stated [*]. I've tweaked the
version
of the Ada front-end in the LLVM subversion repository so that it can
be built using the 2005, 2006 and 2007 GNAT GPL editions, as well as
with gcc-4.2. It fails to build with gcc-4.3, but I can try to fix
that too if anyone wants it.

Duncan.

[*] llvm-gcc is based on gcc-4.2, which also can't be built with
the 2006 GNAT GPL edition.