AlliedModders - Clang 3.8 enable link time optimization

I'm trying to build my CEntity-based extensions with '-flto' option following this instruction:
http://llvm.org/docs/GoldPlugin.html#lto-how-to-build

basecally I replaced /usr/bin/ld with /usr/bin/ld.gold and added '-flto' to cxx.cflags in AMBuildScript

And I get these errors for some object files in my extensions:

Code:

/usr/bin/ld: error: extension.o:1:3: invalid character

/usr/bin/ld: error: extension.o:1:3: syntax error, unexpected $end

/usr/bin/ld: error: extension.o: not an object or archive