[MacPorts] #63453: libffi @3.4.2_0 does not tell port gcc7 (and possibly libgcc7?) need to be rebuilt

[MacPorts]

#63453: libffi @3.4.2_0 does not tell port gcc7 (and possibly libgcc7?) need to be
rebuilt
------------------------+---------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  leopard
      Port:  libffi     |
------------------------+---------------------

Comment (by ballapete):

 Actual `configure` command from building GNU Emacs 25.4 again from
 sources:

 {{{
 /opt/local/bin/ld -dynamic -arch ppc7450 -bind_at_load -macosx_version_min
 10.5.8 -weak_reference_mismatches non-weak -o conftest -lcrt1.10.5.o
 -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib
 -L/opt/local/lib/gcc7/gcc/ppc-apple-darwin9/7.5.0
 -L/opt/local/lib/gcc7/gcc/ppc-apple-darwin9/7.5.0/../../.. -t -v
 /var/folders/PR/PR9ZvjydEAmPxO7U5PFnBk+++TI/-Tmp-//ccUEEWgd.o -lncurses
 -lxml2 -lMagickWand-6.Q16 -lMagickCore-6.Q16 -lrsvg-2 -lgio-2.0
 -lgdk_pixbuf-2.0 -lgobject-2.0 -lglib-2.0 -lintl -lcairo -lgcc_s.10.5
 -lgcc_ext.10.5 -lgcc -lSystem -lef_ppc
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/63453#comment:1>
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