[MacPorts] #70444: bind9 @9.20.0 on macOS 10.11.6 needs a more recent compiler

[MacPorts]

#70444: bind9 @9.20.0 on macOS 10.11.6 needs a more recent compiler
-----------------------+------------------------
 Reporter:  snowflake  |      Owner:  danielluke
     Type:  defect     |     Status:  assigned
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.9.99
 Keywords:             |       Port:  bind9
-----------------------+------------------------
 The system compiler on this old version of macOS is not up to the job any
 more.

 Here's the first error:
 {{{
 netmgr/netmgr.c:2396:10: error: address argument to atomic operation must
 be a pointer to non-const _Atomic type ('const isc_refcount_t *' (aka
 'const _Atomic(uint_fast32_t) *') invalid)
         REQUIRE(VALID_NMHANDLE(handle));
         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
 netmgr/netmgr-int.h:243:3: note: expanded from macro 'VALID_NMHANDLE'
          atomic_load(&(t)->references) > 0)
 }}}

 I build it successfully with configure.compiler=macports-clang-16
 {{{
 sudo port clean bind9
 sudo port -s upgrade bind9 configure.compiler=macports-clang-16
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/70444>
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