[MacPorts] #62881: gcc11: port is deactivating libgcc10, resulting in broken dependent ports

[MacPorts]

#62881: gcc11: port is deactivating libgcc10, resulting in broken dependent ports
---------------------+--------------------------
 Reporter:  mascguy  |      Owner:  cjones051073
     Type:  defect   |     Status:  assigned
 Priority:  High     |  Milestone:
Component:  ports    |    Version:
 Keywords:           |       Port:  gcc11
---------------------+--------------------------
 When updating ports today, I notice that `libgcc10` was deactivated,
 despite a number of ports having a lib or runtime dependency on that port.

 Reviewing new port `gcc11`, it looks like it's occurring there:

 {{{
     pre-activate {
         if {![catch {set installed [lindex [registry_active libgcc10]
 0]}]} {
             # Extract the epoch of the installed libgcc9
             set _epoch [lindex $installed 5]
             # If < 3 need to deactivate
             if {[vercmp $_epoch 6] < 0} {
                 registry_deactivate_composite libgcc10 "" [list
 ports_nodepcheck 1]
             }
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/62881>
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