[debbugs-tracker] bug#35410: closed (27.0.50; 32-bit build of master failing with MSYS2)

[GNU bug Tracking System]

Your message dated Wed, 9 Oct 2019 20:11:38 +0200
with message-id <address@hidden>
and subject line Re: bug#35410: 27.0.50; 32-bit build of master failing with 
MSYS2
has caused the debbugs.gnu.org bug report #35410,
regarding 27.0.50; 32-bit build of master failing with MSYS2
to be marked as done.

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35410: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=35410
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> --- Begin Message ---
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> Subject: 
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> 27.0.50; 32-bit build of master failing with MSYS2
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> Date: 
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> Wed, 24 Apr 2019 09:28:50 +0200
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> Trying a 32-bit MSYS2 build of master on Windows 10 configured with
> CFLAGS='-O3' gets me here:
>
> 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.
>
> A workaround here is to add a check to mingw_time.h like
>
> /* The @#$%^&! MinGW developers stopped updating the values of
>    __MINGW32_VERSION, __MINGW32_MAJOR_VERSION, and
>    __MINGW32_MINOR_VERSION values in v4.x of the runtime, to
>    "discourage its uses".  So the values of those macros can no longer
>    be trusted, and we need the workaround below, to have a single set
>    of macros we can trust.  (The .17 minor version is arbitrary.)  */
> #ifdef __MINGW32__
> #include <_mingw.h>
> # ifndef __CRT__NO_INLINE
> #  define __CRT__NO_INLINE
> # endif
> #endif
>
> martin
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> --- End Message ---
> --- Begin Message ---
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> Subject: 
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> Re: bug#35410: 27.0.50; 32-bit build of master failing with MSYS2
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> Date: 
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> Wed, 9 Oct 2019 20:11:38 +0200
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> >  > Hmm, I tried updating, but now my mingw32 gcc is 9.1.0, and it still
> >  > builds fine.  I'm not sure if it's practical to support old compiler
> >  > versions from a rolling release.
> >
> > The problem is not with the compiler version per se but with the
> > headers shipped with MinGW64.  So hopefully they fixed that problem in
> > our sense in the meantime.  I'm reluctant to update as well because
> > the 64-bit builds work sufficiently well and updating always bears the
> > risk spoiling that.  I filed the report only to hear opinions from
> > other MinGW64 users but apparently neither of them uses my version.
>
> I now upgraded MSYS2 to its present version and it builds fine so I'm
> hopefully closing this bug.
>
> Thanks for the heads-up, martin
>
>
> --- End Message ---