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regardless if they are obtained by config file or by find module. It is
even possible - albeit quite strange - for a package not to provide one
single component, but to provide a config file. Consequently, XXX_FOUND
should be FALSE if nothing from XXX can be found at all, but if true it
should mean: "There is something from XXX present, but for information
about the available components, imperatively refer to the XXX_YY_FOUND
variables." Or, in other words: XXX_FOUND simply does not carry enough
information about available components from a multi-component package,
so, IMHO, a component's absence isn't sufficient to negate XXX_FOUND.

Any comments, suggestions etc. would be greatly appreciated.

Best regards,

Michael Hertling