problem bootstrapping gcc 3.4.1

[squirrel at _HOSTNAME_ dot headnut dot org]

hey,

i'm trying to bootstrap gcc 3.4.1 with uclibc for an embedded
device toolchain, but i keep getting errors upon the compile.

the relevant lines:

$ tar xfj gcc-3.4.1.tar.gz
$ mkdir build-boot-gcc
$ cd build-boot-gcc
$ ../gcc-3.4.1/configure --target=i386-linux \
  --prefix=/home/squirrel/projects/stb_pbx/toolchain \
  --without-headers \
  --with-newlib \
  --disable-nls \
  --enable-languages=c
$ make all-gcc

/home/squirrel/projects/stb_pbx/build-tools/build-boot-gcc/gcc/xgcc
  -B/home/squirrel/projects/stb_pbx/build-tools/build-boot-gcc/gcc/
  -B/home/squirrel/projects/stb_pbx/tools/i386-linux/bin/
  -B/home/squirrel/projects/stb_pbx/tools/i386-linux 
  /lib/
  -isystem /home/squirrel/projects/stb_pbx/tools/i386-linux/include
  -isystem /home/squirrel/projects/stb_pbx/tools/i386-linux/sys-include
  -O2  -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings
  -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
  -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
  -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../gcc-3.4.1/gcc
  -I../../gcc-3.4.1/gcc/. -I../../gcc-3.4.1/gcc/../include   -DL_muldi3
  -c ../../gcc-3.4.1/gcc/libgcc2.c -o libgcc/./_muldi3.o
In file included from ./tm.h:11,
                 from ../../gcc-3.4.1/gcc/libgcc2.c:43:
../../gcc-3.4.1/gcc/config/i386/linux.h:217:20: signal.h: No such
  file or directory
../../gcc-3.4.1/gcc/config/i386/linux.h:218:26: sys/ucontext.h: No
  such file or directory
make[2]: *** [libgcc/./_muldi3.o] Error 1

any help on fixing this issue is greatly appreciated!  please
e-mail directly or cc me in the reply as i am not on the gcc-help
list.

thank you!

chris