[MacPorts] #61409: db53 fails to configure on macOS 10.15 with XCode 12.1

[MacPorts]

#61409: db53 fails to configure on macOS 10.15 with XCode 12.1
---------------------+--------------------
 Reporter:  tgyurci  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:
 Keywords:           |       Port:  db53
---------------------+--------------------
 The command `port -v build db53` fails during configure with the following
 error:

 {{{
 ...
 checking for mutexes... UNIX/fcntl
 configure: error: Support for FCNTL mutexes was removed in BDB 4.8.
 ...
 }}}

 Operating environment info:
 {{{
 DEBUG: macOS 10.15 (darwin/19.6.0) arch i386
 DEBUG: MacPorts 2.6.3
 DEBUG: Xcode 12.1
 DEBUG: SDK 10.15
 DEBUG: MACOSX_DEPLOYMENT_TARGET: 10.15
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61409>
MacPorts <https://www.macports.org/>
Ports system for macOS