[Bug gdb/28434] New: gdb will not build. ld says multiple definitions.

["adrianh.bsc at gmail dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=28434

            Bug ID: 28434
           Summary: gdb will not build. ld says multiple definitions.
           Product: gdb
           Version: 11.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: adrianh.bsc at gmail dot com
  Target Milestone: ---

So I tried to build gdb from scratch on my windows box using msys.  The final
lines that was reported before exiting to the command prompt were:

  CXXLD  gdb.exe
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../lib/libncursesw.a(lib_termcap.o):(.bss+0x8):
multiple definition of `UP';
../readline/readline/libreadline.a(terminal.o):C:/msys64/mingw64/include/termcap.h:35:
first defined here
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../lib/libncursesw.a(lib_termcap.o):(.bss+0x0):
multiple definition of `BC';
../readline/readline/libreadline.a(terminal.o):C:/msys64/mingw64/include/termcap.h:36:
first defined here
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../lib/libncursesw.a(lib_tputs.o):(.bss+0x6):
multiple definition of `PC';
../readline/readline/libreadline.a(terminal.o):C:/msys64/mingw64/include/termcap.h:29:
first defined here
collect2.exe: error: ld returned 1 exit status
make[2]: *** [Makefile:1882: gdb.exe] Error 1
make[2]: Leaving directory '/tmp/build/gdb'
make[1]: *** [Makefile:10462: all-gdb] Error 2
make[1]: Leaving directory '/tmp/build'
make: *** [Makefile:915: all] Error 2

I've attached a file showing the configure and build output.  What's going on? 
I also tried to build 10.2 with the same problem.

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