Choose ntk (if available) over wingcc as the device used for generic interactive tests on Windows.
Choose ntk (if available) over wingcc as the device used for generic
interactive tests on Windows.

svn path=/trunk/; revision=12936

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot