Although the percent of statements in this class's source code covered by the test suite and by Configure.pl itself is lower than I normally would settle for (http://thenceforward.net/parrot/coverage/configure-build/config-auto-va_ptr-pm.html), the uncovered statements are highly platform-specific. So there's no point in writing further tests for these statements, as covering them could only meaningfully be done on a different platform -- at which point other statements would become uncovered!
Hence, I'm resolving the ticket.
