Command macros - $defines not exist? Or it has other name?

[amarty]

 Hello!

I want to run Qt moc tool as custom build step for header file. In file properties on "Advanced" tab I type custom command in edit field and I want to pass include search path and preprocessor defines to moc, same as compiler search path and defines. For include path I use $includes macro, but I don't know how I can pass compilers defines - $defines don't works. How I can solve this problem?