Building a crosscompiler for mingw

[Lars Andersen]

In a previous post i found this for building a crosscompiler with target
mingw


>>>>>>>>>>>>>>>>>>>>>>>>
>
> Actually, it does work OOTB (as of 3.1). The binaries it produces are
> native Win32 binaries which do not require the Cygwin POSIX-to-Win32
> translation layer DLL.

  ../gcc/configure \
                   --prefix=$PREFIX \
                   --target=i686-pc-mingw32 \
                   --host=i686-pc-linux-gnu \
                   --enable-languages=c,c++,java \
                   --disable-nls \
                   --with-as=$PREFIX/i686-pc-mingw32/bin/as \
                   --with-ld=$PREFIX/i686-pc-mingw32/bin/ld \
                   --with-gnu-ld \
                   --with-gnu-as \
                   --enable-libgcj \
                   --enable-gc-type=boehm \
                   --disable-shared \
                   --enable-threads=win32 \
                   --disable-hash-synchronization \
                   --disable-interpreter \
                   --enable-sjlj-exceptions
>
>>>>>>>>>>>>>>>>>>>


However, when i try this it produces an error.
In particular this command from the makefile :

/home/lars/gcc_cvs/objwin/gcc/xgcc \
     -B/home/lars/gcc_cvs/objwin/gcc/  \
     -B/usr/local/win32/i686-pc-mingw32/bin/  \
     -B/usr/local/win32/i686-pc-mingw32/lib/  \
     -isystem /usr/local/win32/i686-pc-mingw32/include -O2 \
     -I../../gcc/gcc/../winsup/include \
     -I../../gcc/gcc/../winsup/cygwin/include  \
     -I../../gcc/gcc/../winsup/w32api/include \
     -DIN_GCC -DCROSS_COMPILE \
     -W -Wall -Wwrite-strings -Wstrict-prototypes  \
     -Wmissing-prototypes -isystem ./include \
     -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 \
     -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc \
     -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. \
     -I../../gcc/gcc/config -I../../gcc/gcc/../include \
     -DL_muldi3 -c ../../gcc/gcc/libgcc2.c -o libgcc/./_muldi3.o


produces the following error :

In file included from ../../gcc/gcc/config/i386/mingw32.h:31,
                 from tconfig.h:17,
                 from ../../gcc/gcc/libgcc2.c:36:
../../gcc/gcc/config/i386/cygwin.h:30:19: stdio.h: No such file or
directory
In file included from ../../gcc/gcc/config/i386/mingw32.h:31,
                 from tconfig.h:17,
                 from ../../gcc/gcc/libgcc2.c:36:
../../gcc/gcc/config/i386/cygwin.h:394: error: parse error before '*'
token
../../gcc/gcc/config/i386/cygwin.h:394: warning: function declaration
isn't a prototype
../../gcc/gcc/config/i386/cygwin.h:396: error: parse error before '*'
token
../../gcc/gcc/config/i386/cygwin.h:396: warning: function declaration
isn't a prototype


Also i notice that the above command includes many dirs from
gcc/winsup/, a dir absent from the source tarballs??

Same error when building using gcc3.04 and gcc3.2 (cvs), and using
gcc3.1 source and gcc3.2(cvs) source.


/Lars Andersen