GNU bug report logs - #35410
27.0.50; 32-bit build of master failing with MSYS2

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From: martin rudalics <rudalics <at> gmx.at>
To: Noam Postavsky <npostavs <at> gmail.com>
Cc: 35410 <at> debbugs.gnu.org
Subject: bug#35410: 27.0.50; 32-bit build of master failing with MSYS2
Date: Fri, 12 Jul 2019 10:12:01 +0200

>> w32.o:w32.c:(.text+0xa29f): undefined reference to `_imp___futime32'
>> collect2.exe: error: ld returned 1 exit status
>> make[1]: *** [Makefile:643: temacs.exe] Fehler 1
>> make[1]: Verzeichnis „/c/emacs/trunk/opt-32/src“ wird verlassen
>> make: *** [Makefile:423: src] Fehler 2
>>
>> A build configured with CFLAGS='-O0 -g3' proceeds without problems.
>> The 32-builds use gcc 7.4.0.  64-bit builds with the same options
>> proceed without problems using gcc 8.3.0.
>
> Seems to work okay here, but my ming32 gcc is 7.2.0.  Is this still a
> problem?

Yes.  With slight changes in the Makefile references:

  CCLD     temacs.exe
w32.o:w32.c:(.text+0xa27f): undefined reference to `_imp___futime32'
collect2.exe: error: ld returned 1 exit status
make[1]: *** [Makefile:651: temacs.exe] Fehler 1
make[1]: Verzeichnis „/c/emacs/trunk/opt-32/src“ wird verlassen
make: *** [Makefile:424: src] Fehler 2

In an earlier conversation with Eli I wrote

> > An optimized 32-bit build apparently does not recognize
> >
> > #ifndef __MINGW64_VERSION_MAJOR

and he told me

> So I guess we need to find an alternative to
> __MINGW64_VERSION_MAJOR that will work in the 32-bit MinGW64 builds.
> Look for macros that include "_VERSION_" or "_MAJOR" in the MinGW64
> headers.

but I had no good idea how to continue.

martin

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