[MacPorts] #53671: Upgrade bochs to 2.6.8, add variants, set standard configure flags

[MacPorts]

#53671: Upgrade bochs to 2.6.8, add variants, set standard configure flags
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  Reporter:  Nax          |      Owner:
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch maintainer
      Port:  bochs        |
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Changes (by mf2k):

 * keywords:  haspatch => haspatch maintainer
 * type:  update => enhancement


Comment:

 Thanks! Please add a `sha256` checksum and remove the obsolete `md5` and
 `sha1` checksums unless they are provided upstream.

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Ticket URL: <https://trac.macports.org/ticket/53671#comment:1>
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