[MacPorts] #63312: gcc11: build failure on macOS 11: Bootstrap comparison failure

[MacPorts]

#63312: gcc11: build failure on macOS 11: Bootstrap comparison failure
-------------------------+--------------------
  Reporter:  i0ntempest  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:
      Port:  gcc11       |
-------------------------+--------------------

Comment (by mouse07410):

 Concur - same problem here. :-(

 {{{
 :info:build Comparing stages 2 and 3
 :info:build warning: gcc/cc1obj-checksum.o differs
 :info:build warning: gcc/cc1objplus-checksum.o differs
 :info:build Bootstrap comparison failure!
 :info:build gcc/jit/jit-recording.o differs
 :info:build make[2]: *** [compare] Error 1
 :info:build make[2]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc11/gcc11/work/build'
 :info:build make[1]: *** [stage3-bubble] Error 2
 :info:build make[1]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc11/gcc11/work/build'
 :info:build make: *** [bootstrap-lean] Error 2
 :info:build make: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc11/gcc11/work/build'
 :info:build Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc11/gcc11/work/build"
 && /usr/bin/make -j20 -w bootstrap-lean
 :info:build Exit code: 2
 :error:build Failed to build gcc11: command execution failed
 }}}

 Consistent on different machines (different CPUs, but all Intel and
 running macOS 11.5.1 with Xcode-12.5.1).

-- 
Ticket URL: <https://trac.macports.org/ticket/63312#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS