trunk r152694
CFLAGS="-march=atom -mfpmath=sse -mveclibabi=svml -pipe -O3 -flto"
When configure in libgcc,
checking for x86_64-unknown-linux-gnu-gcc... /home/xhs/build/gcc/./gcc/xgcc
-B/home/xhs/build/gcc/./gcc/ -B/gcc-4.5/gcc/x86_64-unknown-linux-gnu/bin/
-B/gcc-4.5/gcc/x86_64-unknown-linux-gnu/lib/ -isystem
/gcc-4.5/gcc/x86_64-unknown-linux-gnu/include -isystem
/gcc-4.5/gcc/x86_64-unknown-linux-gnu/sys-include
checking for suffix of object files... configure: error: in
`/home/xhs/build/gcc/x86_64-unknown-linux-gnu/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
--
Summary: -flto leads to bootstrap failure
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: linuxl4 at sohu dot com
GCC build triplet: x86_64-pc-linux
GCC host triplet: x86_64-pc-linux
GCC target triplet: x86_64-pc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41691
