Re: [bug #60774] make hangs on fcntl lock when using -O and stdout is /dev/null

[Eli Zaretskii]

> From: Dmitry Goncharov <dgoncharov@users.sf.net>
> Date: Sat, 24 Jul 2021 22:03:37 -0400
> Cc: Mike Frysinger <vapier@gentoo.org>, Paul Smith <psmith@gnu.org>, 
> boris@kolpackov.net, 
>       bug-make <bug-make@gnu.org>
> 
> Wanted to test that windows this still works with this change.
> 
> So, i followed instructions in README.W32.
> Installed mingw gcc. Copied config.h.W32.template to config.h.w32.
> Ran build_W32.bat gcc. It fails with
> 
> C:\dgoncharov\make>gcc -mthreads -Wall -std=gnu99 -gdwarf-2 -g3 -O2 
> -DMAKE_MAINT
> AINER_MODE -I.\GccRel/src -I./src -I.\GccRel/lib -I./lib -I./src/w32/include 
> -DW
> INDOWS32 -DHAVE_CONFIG_H  -o .\GccRel/src/ar.o -c src/ar.c
> In file included from src/ar.c:18:
> src/makeint.h:314:13: error: conflicting types for 'mode_t'
>  typedef int mode_t;
>              ^~~~~~
> In file included from src/makeint.h:86,
>                  from src/ar.c:18:
> c:/Program Files 
> (x86)/mingw-w64/i686-8.1.0-posix-dwarf-rt_v6-rev0/mingw32/i686-
> w64-mingw32/include/sys/types.h:77:17: note: previous declaration of 'mode_t' 
> wa
> s here  typedef _mode_t mode_t;
> 
> Both make and mingw declare mode_t.
> More errors like this follow.
> 
> Does anyone have a ready to use config.h.W32?

config.h.W32.template has this:

  /* Define to 1 if you have the `umask' function. */
  #if defined(__MINGW32__) || defined(__TINYC__)
  # define HAVE_UMASK 1
  #endif

and makeint.h says around line 315:

  #if !defined(HAVE_UMASK)
  typedef int mode_t;
  extern mode_t umask (mode_t);
  #endif

So the typedef in makeint.h should have been excluded in the MinGW
build.  How come it wasn't in your case?  Did MinGW64 stop defining
__MINGW32__ or something?  Or was makeint.h included before config.h?