[MacPorts] #69875: libgcc7 build failed (MacOS Big Sur)

[MacPorts]

#69875: libgcc7 build failed (MacOS Big Sur)
----------------------+--------------------------------
  Reporter:  clegra   |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.9.3
Resolution:           |   Keywords:  libgcc7 build fail
      Port:  libgcc7  |
----------------------+--------------------------------

Old description:

> under MacOS 11.7.10, libgcc7 repeatedly fails to build
> while a prompt sometimes says that "libgcc7 is known to fail" and asks
> whether I want to build it, it is used/referred to for the installation
> of subversion which I need
>
> --->  Building libgcc7
> Error: Failed to build libgcc7: command execution failed
> Error: See
> /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc7/libgcc7/main.log
> for details.
> Error: Problem while installing libgcc7
> Error: rev-upgrade failed: Error rebuilding gcc7

New description:

 under MacOS 11.7.10, libgcc7 repeatedly fails to build

 --->  Building libgcc7
 Error: Failed to build libgcc7: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc7/libgcc7/main.log
 for details.
 Error: Problem while installing libgcc7
 Error: rev-upgrade failed: Error rebuilding gcc7

--

Comment (by clegra):

 while a prompt sometimes says that "libgcc7 is known to fail" and asks
 whether I want to build it, it is used/referred to for the installation of
 subversion which I need.

 -- many thanks in advance for all indications and help

-- 
Ticket URL: <https://trac.macports.org/ticket/69875#comment:1>
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