[fpc-pascal] Warning: Symbol "faHidden" is not portable

[James Richters]

What does  'Warning: Symbol "faHidden" is not portable' mean exactly?  I’m using it with FindFirst and FindNext,  I'm just wondering if there is a better way of getting directory information that includes hidden and excludes hidden files in a better way that would not generate this warning.  The Fact that there is a warning about it indicates to me that there must be a better way.

James