Errors while building gcc for cygwin32 target

[Marc Singer]

The goal here is to build a cross compiler from Linux to
i586-cygwin32.  Binutils builds OK.  GCC is having problems.  

I'm attaching both the script I'm using to unpack, configure, and
build gcc as well as a log from make that fails.  The crux appears to
be the inclusion of <stdio.h> in gcc/config/i386/cygwin.h.  It is
included so that a prototype can use FILE*.  However, at the time when
the compiler is being built, there is no stdio.h available.

I've tried to use the 11.17 GCC snapshot from the cygwin archive as
well as a 12.02 snapshot from gnu.org.

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#!/bin/sh 

package=gcc

s=`find * -type l -maxdepth 0 -print | grep $package | grep src.tar`
if [ -z "$s" ] ; then
  echo "No $package archive.  Symlink expected."
  exit
fi
sd=`echo $s | sed -e s/.src.tar.bz2//`
#sd=`echo $s | sed -e s/.src.tar.gz//`

if [ ! -d $sd ] ; then
 p=`find * -type d -maxdepth 0 -print | grep $package`
 if [ -n "$p" ]  ; then rm -rf  $p ; fi
 if [ -L ${package}-src ] ; then rm ${package}-src ; fi
 echo Unpacking source...
 tar jxf ${package}-*src.tar.bz2
# tar zxf ${package}-*src.tar.gz
 p=`find * -type d -maxdepth 0 -print | grep $package`
 ln -s $p ${package}-src
fi

if [ -d $package ] ; then rm -rf $package ; fi
mkdir $package
cd $package

../${package}-src/configure -v \
   --prefix=/usr/i586-cygwin32 \
   --target=i586-pc-cygwin32 \
   --enable-languages=c,c++ \
   --enable-threads \
   --disable-multilib \
   --enable-version-specific-runtime-libs \
   --with-newlib

export PATH=$PATH:/usr/i586-cygwin32/bin
make LANGUAGES=c -k -j2 
#all-gcc


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make[1]: Entering directory `/m/md1/cfw-cross/cyg/gcc/libiberty'
make[2]: Entering directory `/m/md1/cfw-cross/cyg/gcc/libiberty/testsuite'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/m/md1/cfw-cross/cyg/gcc/libiberty/testsuite'
make[1]: Leaving directory `/m/md1/cfw-cross/cyg/gcc/libiberty'
make[1]: Entering directory `/m/md1/cfw-cross/cyg/gcc/gcc'
(cd intl && make all)
make[2]: Entering directory `/m/md1/cfw-cross/cyg/gcc/gcc/intl'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/m/md1/cfw-cross/cyg/gcc/gcc/intl'
make GCC_FOR_TARGET="/m/md1/cfw-cross/cyg/gcc/gcc/xgcc -B/m/md1/cfw-cross/cyg/gcc/gcc/ -B/usr/i586-cygwin32/i586-pc-cygwin32/bin/ -B/usr/i586-cygwin32/i586-pc-cygwin32/lib/ -isystem /usr/i586-cygwin32/i586-pc-cygwin32/include" \
  BUILD_PREFIX="" BUILD_PREFIX_1="loser-" \
  AR_FOR_TARGET="i586-pc-cygwin32-ar" \
  AR_CREATE_FOR_TARGET="i586-pc-cygwin32-ar  rc" \
  AR_FLAGS_FOR_TARGET="" \
  CFLAGS="-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -fno-common" \
  RANLIB_FOR_TARGET="i586-pc-cygwin32-ranlib" \
  RANLIB_TEST_FOR_TARGET="[ -f i586-pc-cygwin32-ranlib ] || ( [ "i686-pc-linux-gnu" = "i586-pc-cygwin32" ] && [ -f /usr/bin/ranlib -o -f /bin/ranlib ] )" \
  NM_FOR_TARGET="nm" AWK="gawk" \
  LIBGCC2_CFLAGS="-O2 -I../../gcc-src/gcc/../winsup/include -I../../gcc-src/gcc/../winsup/cygwin/include -I../../gcc-src/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" \
  INCLUDES="-I. -I. -I../../gcc-src/gcc -I../../gcc-src/gcc/. -I../../gcc-src/gcc/config -I../../gcc-src/gcc/../include" \
  CONFIG_H="tconfig.h " MACHMODE_H="machmode.h machmode.def ../../gcc-src/gcc/config/i386/i386-modes.def" \
  LIB1ASMSRC='i386/cygwin.asm' \
  MAKEOVERRIDES= \
  -f libgcc.mk all
make[2]: Entering directory `/m/md1/cfw-cross/cyg/gcc/gcc'
for d in libgcc; do \
  if [ -d $d ]; then true; else /bin/sh ../../gcc-src/gcc/mkinstalldirs $d; fi; \
done
if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
/m/md1/cfw-cross/cyg/gcc/gcc/xgcc -B/m/md1/cfw-cross/cyg/gcc/gcc/ -B/usr/i586-cygwin32/i586-pc-cygwin32/bin/ -B/usr/i586-cygwin32/i586-pc-cygwin32/lib/ -isystem /usr/i586-cygwin32/i586-pc-cygwin32/include -O2 -I../../gcc-src/gcc/../winsup/include -I../../gcc-src/gcc/../winsup/cygwin/include -I../../gcc-src/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-src/gcc -I../../gcc-src/gcc/. -I../../gcc-src/gcc/config -I../../gcc-src/gcc/../include  -DL_muldi3 -c ../../gcc-src/gcc/libgcc2.c -o libgcc/./_muldi3.o
In file included from tconfig.h:17,
                 from ../../gcc-src/gcc/libgcc2.c:36:
../../gcc-src/gcc/config/i386/cygwin.h:30:19: stdio.h: No such file or directory
In file included from tconfig.h:17,
                 from ../../gcc-src/gcc/libgcc2.c:36:
../../gcc-src/gcc/config/i386/cygwin.h:403: error: parse error before '*' token
../../gcc-src/gcc/config/i386/cygwin.h:403: warning: function declaration isn't a prototype
../../gcc-src/gcc/config/i386/cygwin.h:405: error: parse error before '*' token
../../gcc-src/gcc/config/i386/cygwin.h:405: warning: function declaration isn't a prototype
make[2]: *** [libgcc/./_muldi3.o] Error 1
make[2]: Leaving directory `/m/md1/cfw-cross/cyg/gcc/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/m/md1/cfw-cross/cyg/gcc/gcc'
make: *** [all-gcc] Error 2

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