Re: Breakage on builder Fedora-x86_64-w64-mingw32, revision 49b000dc5686e016f05b717f18d2c8f865eb3617 [gdb-8.12-branch]

[Pedro Alves <palves@redhat.com>]

On 07/13/2018 11:55 AM, Wiederhake, Tim wrote:
>> To: Pedro Alves <palves@redhat.com>
>>
>> On Thursday, July 12 2018, Pedro Alves wrote:
>>
>>> On 07/12/2018 08:59 AM, gdb-buildbot@sergiodj.net wrote:
>>>> yes
>>>> checking for memcmp... In file included from ../../binutils-
>> gdb/intl/plural.y:35:0:
>>>> ../../binutils-gdb/intl/plural-exp.h:102:23: error: conflicting types
>> for 'libintl_gettextparse'
>>>>  # define PLURAL_PARSE libintl_gettextparse
>>>>                        ^
> 
> For what it's worth, we're seeing this, too, every now and then.
> Up to now I believed this was just a problem with our setup, as I couldn't find any difference in the source or build directories of failing and working builds.
> Additionally, cross-compiling gdb seems to increase the frequency of failures, as does having the source or build directory on a network share.

My guess is that for some reason GNU Make thinks it
needs to rebuild plural.c from src/intl/plural.y instead of
using the in-source-tree src/intl/plural.c, and then we run into some
incompatibility between gettext and bison (or rather,
the newer-bison-produced file).  Network shares are prone to
time skew, >1s differences, etc. confusing make.

Oh, hmm, I've been building my mingw cross gdbs with --disable-intl.
If I remove that, then I see that same error too.

Yep, if I
 touch src/intl/plural.c
then
 rm -f build/intl/plural.* && make -C intl
build successfully.

I kind of have the feeling I've seen this discussed before.

Thanks,
Pedro Alves