[MacPorts] #72332: gcc10-bootstrap @10.5.0: build fail on native ppc64 Leopard

[MacPorts]

#72332: gcc10-bootstrap @10.5.0: build fail on native ppc64 Leopard
------------------------------+---------------------------
  Reporter:  Demine0          |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.10.5
Resolution:                   |   Keywords:  ppc64 leopard
      Port:  gcc10-bootstrap  |
------------------------------+---------------------------

Comment (by Demine0):

 I noticed that both GMP and MPFR are being compiled with -arch ppc, which
 suggests that ppc might be hardcoded somewhere. Here's an example from the
 build log:
 {{{
 :info:build /bin/sh ./libtool  --tag=CC   --mode=compile
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10-bootstrap/gcc10-bootstrap/work/bins/gcc
 -arch ppc -DHAVE_CONFIG_H -I.
 -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10-bootstrap/gcc10-bootstrap/work/gcc-10.5.0/gmp
 -D__GMP_WITHIN_GMP  -DNO_ASM -g -mdynamic-no-pic -c -o mp_clz_tab.lo
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc10-bootstrap/gcc10-bootstrap/work/gcc-10.5.0/gmp/mp_clz_tab.c
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/72332#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS