A feature patch to the source code would be considered a »significant«
change. A patch that fixes minor bugs, would a priori be considered
insignificant, especially if it is available from the author. Basic
changes in compiler options and installation paths would obviously
be insignificant. Changes to the configuration files, that merely
add to the standard version, without obstructing the standard setup,
would a priori be considered insignificant. Changes to configuration
files that are incompatible with the standard setup, would be
considered significant. When in doubt, ask.
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