Examine Output of make

        Encode.c:1356:5: warning: unused variable 'ix' [-Wunused-variable]
            dXSI32;
            ^
        ../../XSUB.h:185:20: note: expanded from macro 'dXSI32'
        #define dXSI32 I32 ix = XSANY.any_i32
                           ^
        Encode.c:1398:5: warning: unused variable 'ix' [-Wunused-variable]
            dXSI32;
            ^
        ../../XSUB.h:185:20: note: expanded from macro 'dXSI32'
        #define dXSI32 I32 ix = XSANY.any_i32
                           ^
        2 warnings generated.