[Bug target/48108] lto should be containerized in a single mach-o section on darwin

[fang at csl dot cornell.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48108

--- Comment #16 from David Fang <fang at csl dot cornell.edu> 2011-07-10 
04:41:14 UTC ---
This current patch yields excellent results on powerpc-darwin8 now:
http://gcc.gnu.org/ml/gcc-testresults/2011-07/msg01092.html