[ruslandh]

These `-m' switches are supported in addition to the above on AMD x86-64 processors in 64-bit environments. `-m32' `-m64' Generate code for a 32-bit or 64-bit environment. The 32-bit environment sets int, long and pointer to 32 bits and generates code that runs on any i386 system. The 64-bit environment sets int to 32 bits and long and pointer to 64 bits and generates code for AMD's x86-64 architecture.