Thread: rpcgen in Windows 7 - no preprocessor found

I created an IDL like this:

Code:

struct intpair { 
        int a; 
        int b; 
    }; 
    program ADD_PROG { 
        version ADD_VERS { 
             int ADD(intpair) = 1; 
         } = 1; 
    } = 0x23451111;

I installed rpcgen, but when I try to compile this with

rpcgen -C add.x
or

rpcgen add.x
the error-message below is shown
> cannot find any C preprocessor (cpp)

I have a gcc installed.