[Bug 271045] devel/gdb: fix build with clang 16

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From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 24 Apr 2023 15:29:43 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271045

            Bug ID: 271045
           Summary: devel/gdb: fix build with clang 16
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: pizzamig@freebsd.org
          Reporter: dim@FreeBSD.org
             Flags: maintainer-feedback?(pizzamig@freebsd.org)
          Assignee: pizzamig@freebsd.org

Clang 16 has a new error about integer values being outside the valid
range for enum types, which shows up when building gdb:

  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/x86-fbsd-nat.c:20:
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/defs.h:65:
 
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/../gdbsupport/enum-flags.h:95:52:
error: integer value -1 is outside the valid range of values [0, 15] for this
enumeration type [-Wenum-constexpr-conversion]
      integer_for_size<sizeof (T), static_cast<bool>(T (-1) < T (0))>::type
                                                     ^
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/x86-bsd-nat.c:20:
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/defs.h:65:
 
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/../gdbsupport/enum-flags.h:95:52:
error: integer value -1 is outside the valid range of values [0, 15] for this
enumeration type [-Wenum-constexpr-conversion]
      integer_for_size<sizeof (T), static_cast<bool>(T (-1) < T (0))>::type
                                                     ^
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/x86-nat.c:20:
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/defs.h:65:
 
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/../gdbsupport/enum-flags.h:95:52:
error: integer value -1 is outside the valid range of values [0, 15] for this
enumeration type [-Wenum-constexpr-conversion]
      integer_for_size<sizeof (T), static_cast<bool>(T (-1) < T (0))>::type
                                                     ^
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/windows-tdep.c:18:
  In file included from
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/defs.h:65:
 
/wrkdirs/usr/ports/devel/gdb/work-py39/gdb-13.1/gdb/../gdbsupport/enum-flags.h:95:52:
error: integer value -1 is outside the valid range of values [0, 15] for this
enumeration type [-Wenum-constexpr-conversion]
      integer_for_size<sizeof (T), static_cast<bool>(T (-1) < T (0))>::type
                                                     ^

Upstream already noticed this, and committed
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=ae61525fcf4 as
a workaround, so add this as an additional patch, until gdb 13.2 is
released.

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