Unable to Upgrade libgcc11

[RobK88]

I am unable to upgrade libgcc11 on my Mac running Lion. The port fails at the build stage.

Maybe libgcc11 needs to be a stub port for Lion / Mtn Lion like was done for libgcc9. (see ​https://trac.macports.org/ticket/63016)

bash-3.2$ port outdated
The following installed ports are outdated:
gcc11                          11.1.0_2 < 11.2.0_0       
libgcc11                       11.1.0_2 < 11.2.0_0       
bash-3.2$
bash-3.2$ sudo port upgrade  outdated
--->  Computing dependencies for libgcc11
--->  Configuring libgcc11
--->  Building libgcc11                                  
Error: Failed to build libgcc11: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.

Here is the relevant section of main.log.

:info:build :
:info:build mv -f .deps/target.Tpo .deps/target.Plo
:info:build /bin/sh ./libtool --tag CC   --mode=link /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/./gcc/ -B/opt/local/x86_64-apple-darwin11/bin/ -B/opt/local/x86_64-apple-darwin11/lib/ -isystem /opt/local/x86_64-apple-darwin11/include -isystem /opt/local/x86_64-apple-darwin11/sys-include   -fno-checking -Wall -Werror -Wc,-pthread  -g -O2 -pipe -Os     -o libgomp.la -version-info 1:0:0   -rpath /opt/local/lib/libgcc alloc.lo atomic.lo barrier.lo critical.lo env.lo error.lo icv.lo icv-device.lo iter.lo iter_ull.lo loop.lo loop_ull.lo ordered.lo parallel.lo sections.lo single.lo task.lo team.lo work.lo lock.lo mutex.lo proc.lo sem.lo bar.lo ptrlock.lo time.lo fortran.lo affinity.lo target.lo splay-tree.lo libgomp-plugin.lo oacc-parallel.lo oacc-host.lo oacc-init.lo oacc-mem.lo oacc-async.lo oacc-plugin.lo oacc-cuda.lo priority_queue.lo affinity-fmt.lo teams.lo allocator.lo oacc-profiling.lo oacc-target.lo openacc.lo  -ldl 
:info:build libtool: link: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/./gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/./gcc/ -B/opt/local/x86_64-apple-darwin11/bin/ -B/opt/local/x86_64-apple-darwin11/lib/ -isystem /opt/local/x86_64-apple-darwin11/include -isystem /opt/local/x86_64-apple-darwin11/sys-include   -fno-checking -dynamiclib  -o .libs/libgomp.1.dylib  .libs/alloc.o .libs/atomic.o .libs/barrier.o .libs/critical.o .libs/env.o .libs/error.o .libs/icv.o .libs/icv-device.o .libs/iter.o .libs/iter_ull.o .libs/loop.o .libs/loop_ull.o .libs/ordered.o .libs/parallel.o .libs/sections.o .libs/single.o .libs/task.o .libs/team.o .libs/work.o .libs/lock.o .libs/mutex.o .libs/proc.o .libs/sem.o .libs/bar.o .libs/ptrlock.o .libs/time.o .libs/fortran.o .libs/affinity.o .libs/target.o .libs/splay-tree.o .libs/libgomp-plugin.o .libs/oacc-parallel.o .libs/oacc-host.o .libs/oacc-init.o .libs/oacc-mem.o .libs/oacc-async.o .libs/oacc-plugin.o .libs/oacc-cuda.o .libs/priority_queue.o .libs/affinity-fmt.o .libs/teams.o .libs/allocator.o .libs/oacc-profiling.o .libs/oacc-target.o .libs/openacc.o   -ldl  -pthread   -install_name  /opt/local/lib/libgcc/libgomp.1.dylib -compatibility_version 2 -current_version 2.0 -Wl,-single_module
:info:build libtool: link: (cd ".libs" && rm -f "libgomp.dylib" && ln -s "libgomp.1.dylib" "libgomp.dylib")
:info:build libtool: link: /opt/local/bin/ar rc .libs/libgomp.a  alloc.o atomic.o barrier.o critical.o env.o error.o icv.o icv-device.o iter.o iter_ull.o loop.o loop_ull.o ordered.o parallel.o sections.o single.o task.o team.o work.o lock.o mutex.o proc.o sem.o bar.o ptrlock.o time.o fortran.o affinity.o target.o splay-tree.o libgomp-plugin.o oacc-parallel.o oacc-host.o oacc-init.o oacc-mem.o oacc-async.o oacc-plugin.o oacc-cuda.o priority_queue.o affinity-fmt.o teams.o allocator.o oacc-profiling.o oacc-target.o openacc.o
:info:build /opt/local/bin/ranlib: file: .libs/libgomp.a(mutex.o) has no symbols
:info:build /opt/local/bin/ranlib: file: .libs/libgomp.a(ptrlock.o) has no symbols
:info:build /opt/local/bin/ranlib: file: .libs/libgomp.a(oacc-target.o) has no symbols
:info:build libtool: link: /opt/local/bin/ranlib .libs/libgomp.a
:info:build /opt/local/bin/ranlib: file: .libs/libgomp.a(mutex.o) has no symbols
:info:build /opt/local/bin/ranlib: file: .libs/libgomp.a(ptrlock.o) has no symbols
:info:build /opt/local/bin/ranlib: file: .libs/libgomp.a(oacc-target.o) has no symbols
:info:build libtool: link: ( cd ".libs" && rm -f "libgomp.la" && ln -s "../libgomp.la" "libgomp.la" )
:info:build make[5]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/x86_64-apple-darwin11/libgomp'
:info:build make[4]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/x86_64-apple-darwin11/libgomp'
:info:build make[3]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build/x86_64-apple-darwin11/libgomp'
:info:build make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build'
:info:build make[1]: *** [stage2-bubble] Error 2
:info:build make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/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_release_tarballs_ports_lang_gcc11/libgcc11/work/build'
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/work/build" && /usr/bin/make -j4 -w bootstrap-lean 
:info:build Exit code: 2
:error:build Failed to build libgcc11: command execution failed
:debug:build Error code: CHILDSTATUS 56966 2
:debug:build Backtrace: command execution failed
:debug:build     while executing
:debug:build "system {*}$notty {*}$callback {*}$nice $fullcmdstring"
:debug:build     invoked from within
:debug:build "command_exec -callback portprogress::target_progress_callback build"
:debug:build     (procedure "portbuild::build_main" line 8)
:debug:build     invoked from within
:debug:build "$procedure $targetname"
:error:build See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc11/libgcc11/main.log for details.