In MacOSX, gcc command line accepts multiarchitecture options:
gcc -arch i386 -arch x86_64 etc.
... and creates a universal binary by compiling and linking for both archs and running lipo for gluing them together.
However using this command line with Intel, produces a compiler warning:
command line warning #10121: overriding '-arch i386' with '-arch x86_64'
Am I doing something wrong or is this a compiler limitation? I couldn't find anything about it in the Intel developer zone.