xcode - Xcode: Library is not build for x86_64 valid architecture

Question

Please help me with issue I break my neck with..

I work with Xcode 4.5.* and I try to build a library with Build Settings:
Architectures: 32-bit Intel
Valid Architectures: *i386 & x86_64*

But after checking the library details with lipo command I see that the actual library is built only for i386

Now I know this works in Xcode <=4.3 - the library is built for both architectures

Thanks Roman