gcc-4.1.0のスナップショットがビルドできない

gcc 
...
  INCLUDES="-I. -I. -I../../gcc-4.1-20050709/gcc -I../../gcc-4.1-20050709/gcc/.
-I../../gcc-4.1-20050709/gcc/../include -I./../intl -I../../gcc-4.1-20050709/gcc
/../libcpp/include " \
  MAKEOVERRIDES= \
  -f libgcc.mk all
make[2]: Entering directory `/mingw/src/build/gcc'
/mingw/src/build/./gcc/xgcc -B/mingw/src/build/./gcc/ -B/usr/i686-pc-mingw32/bin
/ -B/usr/i686-pc-mingw32/lib/ -isystem /usr/i686-pc-mingw32/include -isystem /us
r/i686-pc-mingw32/sys-include -O2 -I../../gcc-4.1-20050709/gcc/../winsup/w32api/
include -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-proto
types -Wold-style-definition  -isystem ./include   -g -DHAVE_GTHR_DEFAULT -DIN_L
IBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../gcc-4.1-20050709/gcc -I../../gc
c-4.1-20050709/gcc/. -I../../gcc-4.1-20050709/gcc/../include -I./../intl -I../..
/gcc-4.1-20050709/gcc/../libcpp/include  -DL_chkstk -xassembler-with-cpp -c ../.
./gcc-4.1-20050709/gcc/config/i386/cygwin.asm -o libgcc/./_chkstk.o
xgcc.exe: _spawnv: No such file or directory
make[2]: *** [libgcc/./_chkstk.o] Error 1
make[2]: Leaving directory `/mingw/src/build/gcc'
make[1]: *** [libgcc.a] Error 2
make[1]: Leaving directory `/mingw/src/build/gcc'
make: *** [all-gcc] Error 2

yt@THALES /mingw/src/build
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