[MacPorts] #64204: R: 4.1.2 fails to build on macOS 12.0.1 on M1 mac

[MacPorts]

#64204: R: 4.1.2 fails to build on macOS 12.0.1 on M1 mac
-----------------------+------------------------
  Reporter:  colmconn  |      Owner:  i0ntempest
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.1
Resolution:            |   Keywords:  arm64
      Port:  R         |
-----------------------+------------------------

Comment (by kencu):

 Oop -- hold the phone. I see a problem with this plan.

 Because Iain has set up gcc to add an rpath search directory like this:

 {{{
 /opt/local/lib/gcc11/gcc/x86_64-apple-darwin21/11.3.0/../../..
 }}}

 instead of like this:
 {{{
 /opt/local/lib/libgcc
 }}}

 all the executables are fragile to a version update or any other update
 that makes this directory disappear:
 {{{
 /opt/local/lib/gcc11/gcc/x86_64-apple-darwin21/11.3.0/../../..
 }}}

 and all the executables will break if gcc-11 becomes gcc-11.4.0, for
 example, and that 11.3.0 directory is no longer there.

 SO this plan can't work for us. Yikers. Back to the drawing board.

-- 
Ticket URL: <https://trac.macports.org/ticket/64204#comment:11>
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