[MacPorts] #61124: Xcode 12 beta 6 cannot build MacPorts 2.6.3

[MacPorts]

#61124: Xcode 12 beta 6 cannot build MacPorts 2.6.3
--------------------------+--------------------
 Reporter:  CodingMarkus  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.6.3
 Keywords:                |       Port:
--------------------------+--------------------
 When downloading MacPorts-2.6.3.tar.bz2 and trying to build it as
 described on this page

 https://www.macports.org/install.php

 `make` fails when performing the command:

 {{{
 clang -dynamiclib -g -O2 -std=c99 -Wextra -Wall -pedantic  -I/usr/include
 -Wl,-single_module sqlext.o vercomp.o -o macports.sqlext

 }}}

 with

 {{{
 Undefined symbols for architecture x86_64:
   "_sqlite3_create_collation", referenced from:
       _sqlite3_extension_init in sqlext.o
 ld: symbol(s) not found for architecture x86_64
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)
 make[2]: *** [macports.sqlext] Error 1
 }}}

 Fails when building with Xcode with Xcode 12 beta 6.
 System is macOS Catalina (10.15.6).

 It does work correctly when building with Xcode 11.5 on the same system.

-- 
Ticket URL: <https://trac.macports.org/ticket/61124>
MacPorts <https://www.macports.org/>
Ports system for macOS