Erm, shouldn't rpm be included in the "binaries" section? Even if it's in source format, it's installable.
Doesn't the source tarball include (the stuff necessary to generate) a makefile, including an install target? I think it does, so you could say the exact same thing about that: even if it's in source format, it's installable
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I think if it doesn't contain the compiled binaries, it shouldn't be in the binaries section.