[QAT] r331807: 4x leftovers

[Ports-QAT]

Update to the 20131026 snapshot of GCC 4.7.4.

Remove a (long) obsolete dependency on bison. [1]

Migrate to the new LIB_DEPENDS standard.

STAGEify.

Reported by:	marino [1]
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  Build ID:          20131027215200-26469
  Job owner:         gerald at FreeBSD.org
  Buildtime:         25 minutes
  Enddate:           Sun, 27 Oct 2013 22:17:11 GMT

  Revision:          r331807
  Repository:        https://svnweb.freebsd.org/ports?view=revision&revision=331807

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    Port:            lang/gcc47 4.7.4.20131026

      Buildgroup:     8.4-QAT/amd64
      Buildstatus:   LEFTOVERS
      Log: https://qat.redports.org//~gerald@FreeBSD.org/20131027215200-26469-214264/gcc-4.7.4.20131026.log

      Buildgroup:     8.4-QAT/i386
      Buildstatus:   LEFTOVERS
      Log: https://qat.redports.org//~gerald@FreeBSD.org/20131027215200-26469-214265/gcc-4.7.4.20131026.log

      Buildgroup:     9.2-QAT/amd64
      Buildstatus:   LEFTOVERS
      Log: https://qat.redports.org//~gerald@FreeBSD.org/20131027215200-26469-214266/gcc-4.7.4.20131026.log

      Buildgroup:     9.2-QAT/i386
      Buildstatus:   LEFTOVERS
      Log: https://qat.redports.org//~gerald@FreeBSD.org/20131027215200-26469-214267/gcc-4.7.4.20131026.log


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