On 02/19/2010 01:46 AM, Joseph S. Myers wrote: > On Thu, 18 Feb 2010, Jason Merrill wrote: > >> I periodically get bitten by bug 34115: a compiler configured without >> --with-arch on i686-pc-linux-gnu doesn't support atomics. I think we would >> only need to bump the default to i486 to get atomic support. Can we >> reconsider the default for 4.5? >> > My position remains that configuring for i686-* should default to > -march=i686 rather than -mtune=i686. > > http://gcc.gnu.org/ml/gcc/2008-06/msg00223.html > http://gcc.gnu.org/ml/gcc/2008-08/msg00445.html > > Perhaps someone would like to review HJ's patch to that effect? > Yes, please: for the record, I totally support this position.
Paolo.
