ired" /&gt;
    &lt;!-- file item category: source, header, include path, etc.  --&gt;
    &lt;xs:attribute name="category" type="FileCategoryType" use="required" /&gt;
    &lt;!-- for category="header" path explicitly specifies the include path added to the commandline.--&gt;
    &lt;!-- Ignored for all other categories --&gt;
    &lt;xs:attribute name="path"     type="xs:string"        use="optional" /&gt;
    &lt;!-- path(s) to find source files for a library, paths are delimited with semicolon (;) --&gt