Anyone building Emacs trunk with MinGW w64 (32 bits)

[Óscar Fuentes]

gcc --version
gcc (rubenvb-4.7.2-release) 4.7.2

gcc -v
[...]
Target: i686-w64-mingw32
[...]

make bootstrap gives this errors:

gcc -I. -c -gdwarf-2 -g3  -mtune=pentium4 -O2    -isystemc:/apps/GnuWin32/includ
e -DNO_LDAV=1 -DNO_ARCHIVES=1 -I../lib -I../nt/inc -I../src -DUSE_CRT_DLL=1 -o o
o-spd/i386/make-docfile.o make-docfile.c
In file included from ../src/conf_post.h:32:0,
                 from ../src/config.h:1726,
                 from make-docfile.c:37:
../nt/inc/ms-w32.h:269:8: error: redefinition of 'struct timespec'
In file included from ../nt/inc/ms-w32.h:133:0,
                 from ../src/conf_post.h:32,
                 from ../src/config.h:1726,
                 from make-docfile.c:37:
c:\apps\msys\1.0\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w6
4-mingw32/include/sys/types.h:89:8: note: originally defined here
In file included from ../src/conf_post.h:32:0,
                 from ../src/config.h:1726,
                 from make-docfile.c:37:
../nt/inc/ms-w32.h:330:3: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:337:25: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:338:23: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:339:24: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:340:1: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:340:48: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:341:1: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:341:52: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:342:1: error: unknown type name 'sigset_t'
../nt/inc/ms-w32.h:371:0: warning: "_WIN32_WINNT" redefined [enabled by default]

In file included from c:\apps\msys\1.0\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7
.2/../../../../i686-w64-mingw32/include/crtdefs.h:10:0,
                 from c:\apps\msys\1.0\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7
.2/../../../../i686-w64-mingw32/include/sys/types.h:13,
                 from ../nt/inc/ms-w32.h:133,
                 from ../src/conf_post.h:32,
                 from ../src/config.h:1726,
                 from make-docfile.c:37:
c:\apps\msys\1.0\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w6
4-mingw32/include/_mingw.h:252:0: note: this is the location of the previous def
inition
mingw32-make[1]: *** [oo-spd/i386/make-docfile.o] Error 1
mingw32-make[1]: Leaving directory `D:/dev/emacs/emacs/lib-src'
mingw32-make: *** [bootstrap-gmake] Error 2


I tried going back in time on the Emacs sources up to points where I
know that the build worked with the old MinGW compiler that I used
before, and there are reports from people using MinGW 4.7.2 for building
Emacs, so there must be something different on the system headers of
MinGW W64.