[MacPorts] #59427: mono 6.0.0.319_0 Building Error on 10.15

[MacPorts]

#59427: mono 6.0.0.319_0 Building Error on 10.15
----------------------+--------------------
 Reporter:  fuzunspm  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.6.2
 Keywords:  catalina  |       Port:
----------------------+--------------------
 After upgrading my macOS to Catalina 10.15, mono can't be built with the
 error output below

 {{{
 Error: Failed to build mono: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_mono/mono/main.log
 for details.
 }}}

 {{{
 :info:build Exit code: 2
 :error:build Failed to build mono: command execution failed
 :debug:build Error code: CHILDSTATUS 70005 2
 :debug:build Backtrace: command execution failed
 :debug:build     while executing
 :debug:build "system {*}$notty {*}$nice $fullcmdstring"
 :debug:build     invoked from within
 :debug:build "command_exec build"
 :debug:build     (procedure "portbuild::build_main" line 8)
 :debug:build     invoked from within
 :debug:build "$procedure $targetname"
 :error:build See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_mono/mono/main.log
 for details.
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/59427>
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