Disambiguate x?? targets which works around a bug (or new limitation) in CMake-2.4.4 where a target name can no longer be the same as an OUTPUT file name for custom commands.
Disambiguate x?? targets which works around a bug (or new limitation) in
CMake-2.4.4 where a target name can no longer be the same as an OUTPUT file
name for custom commands.

svn path=/trunk/; revision=7190

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