[Bug target/50978] libgcc build fails - unable to find unwind-arm-common.h

[ro at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50978

--- Comment #4 from Rainer Orth <ro at gcc dot gnu.org> 2011-11-03 16:21:34 UTC 
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Created attachment 25708
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25708
proposed patch