[MacPorts] #62662: gcc10 10.3.0 fail to compile on Lion 10.7.5

[MacPorts]

#62662: gcc10 10.3.0 fail to compile on Lion 10.7.5
----------------------+--------------------
 Reporter:  YesNo801  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.6.4
 Keywords:  gcc10     |       Port:  2.6.4
----------------------+--------------------
 gcc10 fail to build in Lion 10.7.5

 info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10/gcc10/work/gcc-10.3.0/libgcc/libgcc2.c:
 In function '__mulxc3':
 :info:build
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10/gcc10/work/gcc-10.3.0/libgcc/libgcc2.c:1989:10:
 internal compiler error: Illegal
  instruction: 4
 :info:build  1989 |       if (isinf (a) || isinf (b))
 :info:build       |          ^
 :info:build libbacktrace could not find executable to open
 :info:build Please submit a full bug report,
 :info:build with preprocessed source if appropriate.
 :info:build See <https://trac.macports.org/newticket> for instructions.
 :info:build make[3]: *** [_mulxc3_s.o] Error 1
 :info:build make[3]: *** Waiting for unfinished jobs....
 :info:build make[3]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10/gcc10/work/build/x86_64
 -apple-darwin11/libgcc'
 :info:build make[2]: *** [all-stage1-target-libgcc] Error 2
 :info:build make[2]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10/gcc10/work/build'
 :info:build make[1]: *** [stage1-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_gcc10/gcc10/work/build'
 :info:build make: *** [bootstrap-lean] Error 2

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Ticket URL: <https://trac.macports.org/ticket/62662>
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