Function M_setMojoDefineString 

pub unsafe extern "C" fn M_setMojoDefineString(
    context: *mut M_RuntimeContext,
    key: *const c_char,
    value: *const c_char,
)

Sets a mojo compile-time define with an string value.

@param context The runtime context. @param key The name of the define. @param value The string to set the define to.