[Bug driver/42690] Undefined reference errors with -flto -fuse-linker-plugin

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42690

--- Comment #24 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-20 21:14:01 
UTC ---
Can we do

1. GCC calls ld with -r to generate a .o file first.
2. GCC calls ld with the single .o input?