Order of CL Options

Options can appear anywhere on the CL command line, except for the /link option, which must occur last. The compiler begins with options specified in the CL environment variable and then reads the command line from left to right — processing command files in the order it encounters them. Each option applies to all files on the command line. If CL encounters conflicting options, it uses the rightmost option.

See also

MSVC Compiler Command-Line Syntax