[Buildroot] [PATCH] gdb: Fix compilation for arc-2018.09 in some cases

[Thomas Petazzoni]

Hello,

On Mon, 10 Dec 2018 12:35:26 +0300, Alexey Brodkin wrote:
> In some cases which seem to depend on how toolchain headers
> got installed or configured we may face well-known by now failure
> fixed in upstream with [1]:
> ------------------------------>8----------------------------  
> In file included from nat/linux-ptrace.c:20:
> nat/linux-ptrace.h:175:22: error: expected identifier before numeric constant
>  # define TRAP_HWBKPT 4
>                       ^
> nat/linux-ptrace.h:175:22: error: expected '}' before numeric constant
> In file included from .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/signal.h:58,
>                  from build-gnulib/import/signal.h:52,
>                  from .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/sys/wait.h:36,
>                  from ./common/gdb_wait.h:23,
>                  from nat/linux-ptrace.c:24:
> .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/bits/siginfo-consts.h:156:1: note: to match this '{'
>  {
>  ^
> In file included from nat/linux-ptrace.c:20:
> nat/linux-ptrace.h:175:22: error: expected unqualified-id before numeric constant
>  # define TRAP_HWBKPT 4
>                       ^
> In file included from .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/features.h:428,
>                  from .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/bits/libc-header-start.h:33,
>                  from .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/stdio.h:27,
>                  from build-gnulib/import/stdio.h:43,
>                  from ./common/common-defs.h:52,
>                  from nat/linux-ptrace.c:19:
> .../output/host/arc-buildroot-linux-gnu/sysroot/usr/include/sys/wait.h:158:1: error: expected declaration before '}' token
>  __END_DECLS
>  ^~~~~~~~~~~
> ------------------------------>8----------------------------  

Applied to master, thanks. I see this patch is in gdb 8.2, so surely
gdb 8.2 is not affected. What about previous gdb releases ?

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com