[Bug libstdc++/21321] [4.1 regression] mmix-knuth-mmixware 27_io/basic_filebuf/seekpos/12790-3.cc execution test

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21321