On 11/12/2009 11:14 AM, Ulrich Drepper wrote:
On 11/12/2009 07:24 AM, Jason Merrill wrote:
c) Use -fabi-version=2.1.
I'd favor this if you can emit aliases with the old names wherever this
is possible and currently done.
I suppose if we unconditionally use the new mangling and emit a weak
alias with the old mangling, old external references will resolve to
somthing, so code that only uses one vector size will continue to work;
if newer code uses multiple vector sizes then references in old code may
resolve to the wrong one, but that seems unavoidable.
I suppose that is the best solution, as a partial rebuild of an old code
base should continue to work in all cases, and all new code will also
work fine.
Jason
