[MacPorts] #56521: gcc8 @8-20170604_2: update to 8.1

[MacPorts]

#56521: gcc8 @8-20170604_2: update to 8.1
-----------------------+--------------------
  Reporter:  iqgrande  |      Owner:  (none)
      Type:  update    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.4.4
Resolution:            |   Keywords:
      Port:  gcc8      |
-----------------------+--------------------

Comment (by kencu):

 I tried it without `-lto`, I tried it with the `-tls` bit removed, I tried
 it with
 {{{
 use_parallel_build  no
 }}}
 I tried adding
 {{{
 -Wl,-headerpad_max_install_names
 }}}
 directly to the link line that fails.

 I monkeyed with the linker, deleted all this stuff from the build
 {{{
 configure.env-append \
                     AR_FOR_TARGET=${prefix}/bin/ar \
                     AS_FOR_TARGET=${prefix}/bin/as \
                     LD_FOR_TARGET=${prefix}/bin/ld \
                     NM_FOR_TARGET=${prefix}/bin/nm \
                     OBJDUMP_FOR_TARGET=${prefix}/bin/objdump \
                     RANLIB_FOR_TARGET=${prefix}/bin/ranlib \
                     STRIP_FOR_TARGET=${prefix}/bin/strip \
                     OTOOL=${prefix}/bin/otool \
                     OTOOL64=${prefix}/bin/otool
 }}}
 all failed. I still get the same error, same place.

 I don't know how the the homebrew build succeeds at present -- Next thing
 is to maybe get somebody to just build it outside of MacPorts, on it's
 own, perhaps.

-- 
Ticket URL: <https://trac.macports.org/ticket/56521#comment:6>
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