[Bug bootstrap/52878] sparc64 bootstrap failure: "MASK_LONG_DOUBLE_128" redefined

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52878

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-05 16:10:41 UTC ---
Created attachment 27102
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27102
A patch

This patch works for Linux/sparc. But it may not work
for all sparc targets which don't include long-double-switch.opt.