http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47137
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|FIXED | --- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-02 22:07:25 UTC --- It breaks LTO: [...@gnu-6 gcc]$ cat /tmp/lto.args -xlto -c -B /export/build/gnu/gcc/build-x86_64-linux/gcc/ -w -O2 -flto-partition=none -fno-builtin-abs -v -save-temps -mtune=generic -march=x86-64 -dumpdir /export/build/gnu/gcc/build-x86_64-linux/gcc/testsuite/gcc/ -dumpbase abs-1.x6 -o /tmp/lto.o abs-1.o abs-1-lib.o main.o [...@gnu-6 gcc]$ ../../xgcc @/tmp/lto.args Reading specs from /export/build/gnu/gcc/build-x86_64-linux/gcc/specs COLLECT_GCC=../../xgcc COLLECT_LTO_WRAPPER=/export/build/gnu/gcc/build-x86_64-linux/gcc/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /export/gnu/import/git/gcc/configure --enable-languages=c --disable-bootstrap --prefix=/usr/gcc-4.6.0 --with-local-prefix=/usr/local --with-fpmath=sse Thread model: posix gcc version 4.6.0 20110102 (experimental) (GCC) xgcc: fatal error: cannot specify -o with -c, -S or -E with multiple files compilation terminated. [...@gnu-6 gcc]$