[Bug libstdc++/47859] Makefile: Input/output error. Stop

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47859

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-02-23 
14:21:20 UTC ---
Also, is the error repeatable?  Does it happen every time you run 'make'?