[Bug build/34537] New: gdb doesn't build with --enable-targets=all on Solaris

https://sourceware.org/bugzilla/show_bug.cgi?id=34537

            Bug ID: 34537
           Summary: gdb doesn't build with --enable-targets=all on Solaris
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: ro at gcc dot gnu.org
  Target Milestone: ---
            Target: *-*-solaris2.11

When building gdb with the default configure options of gdb buildbots (which
include --enable-targets=all), gdb fails to build:

  CXX    microblaze-tdep.o
In file included from ../../binutils-gdb/gdb/microblaze-tdep.c:37:
../../binutils-gdb/gdb/../opcodes/microblaze-opcm.h:101:9: error: ‘REG_PC’
redefined [-Werror]
  101 | #define REG_PC  32 /* PC.  */
      |         ^~~~~~
In file included from /usr/include/sys/ucontext.h:14,
                 from /usr/include/sys/signal.h:197,
                 from /usr/include/sys/procset.h:17,
                 from /usr/include/sys/wait.h:22,
                 from ../gnulib/import/sys/wait.h:28,
                 from /usr/include/stdlib.h:16,
                 from /usr/gcc/16/include/c++/16.1.0/cstdlib:83,
                 from ../../binutils-gdb/gdb/../gdbsupport/common-defs.h:107,
                 from ./../../binutils-gdb/gdb/defs.h:26,
                 from <command-line>:
/usr/include/sys/regset.h:158:9: note: this is the location of the previous
definition
  158 | #define REG_PC  REG_RIP
      |         ^~~~~~
../../binutils-gdb/gdb/../opcodes/microblaze-opcm.h:120:9: error: ‘REG_SP’
redefined [-Werror]
  120 | #define REG_SP  1 /* stack pointer.  */
      |         ^~~~~~
/usr/include/sys/regset.h:160:9: note: this is the location of the previous
definition
  160 | #define REG_SP  REG_RSP
      |         ^~~~~~

There are more instances of this issue:

gdb/../include/opcode/cris.h:34:9: error: ‘REG_SP’ redefined [-Werror]
gdb/../include/opcode/cris.h:35:9: error: ‘REG_PC’ redefined [-Werror]

gdb/../include/opcode/nds32.h:24:9: error: ‘REG_R0’ redefined [-Werror]
gdb/../include/opcode/nds32.h:26:9: error: ‘REG_R8’ redefined [-Werror]
gdb/../include/opcode/nds32.h:27:9: error: ‘REG_R10’ redefined [-Werror]
gdb/../include/opcode/nds32.h:28:9: error: ‘REG_R12’ redefined [-Werror]
gdb/../include/opcode/nds32.h:29:9: error: ‘REG_R15’ redefined [-Werror]
gdb/../include/opcode/nds32.h:34:9: error: ‘REG_FP’ redefined [-Werror]
gdb/../include/opcode/nds32.h:37:9: error: ‘REG_SP’ redefined [-Werror]

I'm not going to pursue this any further since I've little interest in testing
an all-targets gdb on a future buildbot.

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