pe matching clash with openbsd

[Federico G. Schwindt]

  In the binutils configure there are lines line this:

        powerpc*-*-*pe* | powerpc*-*-cygwin*)

  This collides with OpenBSD powerpc. There is a similar line for x86 and arm.
  I'm wondering, can this be change to *pe instead, or something to be less
ambiguous? Or should explicity add something like powerpc*-*-openbsd* before
in case we don't want to build dlltool and friends?
  I'm confused to see targets matching against *pe, pe* and *pe*.

  f.-