[MacPorts] #56922: Libgcc7 @7.3.0_1 fails to build on PPC Tiger, Mac OS X 10.4.11, because comparison of stages 2 and 3 fails

[MacPorts]

#56922: Libgcc7 @7.3.0_1 fails to build on PPC Tiger, Mac OS X 10.4.11, because
comparison of stages 2 and 3 fails
------------------------+--------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.3
Resolution:             |   Keywords:  tiger
      Port:  libgcc7    |
------------------------+--------------------

Comment (by ballapete):

 Replying to [comment:46 kencu]:
 > take a look at the Portfile. It will try to stop you from installing the
 +bootstrap variant if it sees `ld64` and `cctools` are installed.
 > {{{
 > variant bootstrap description {Variant to break a dependency cycle on
 Tiger by first building an apple-gcc42 using host ld and cctools} {
 >     if {([file exists ${prefix}/bin/ld] && [file exists
 ${prefix}/bin/as]) || ${os.major} > 8} {
 >         pre-fetch {
 >             ui_error "Please install this port without the bootstrap
 variant."
 >             error "Please install this port without the bootstrap
 variant."
 >         }
 >     }
 > }}}

 A sensible system would check whether particular packages are installed
 and complain about that instead of reporting such rubbish.
 >
 > It looks like you have the non-bootstrap version installed at any rate,
 based on your installed versions of `apple-gcc42`.
 >
 > IF you still had the +bootstrap version installed (many people seemed to
 still have it) then that might have been an issue. So it must be something
 else on your system.

-- 
Ticket URL: <https://trac.macports.org/ticket/56922#comment:48>
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