[uClibc] Invalid configuration `i386-linux-uclibc': system `uclibc' not recognized

[james osburn]

i am trying to use the uclibc toolchain to build bash and keep getting the 
following error:

cd /home/ptxdist/toolchain_build_i386/bash-2.05b && 
PATH=/home/ptxdist/toolchain_i386/bin:/bin:/sbin:/usr/bin:/usr/sbin 
ac_cv_func_setvbuf_reversed=no bash_cv_have_mbstate_t=yes 
AR="i386-linux-uclibc"-ar AS="i386-linux-uclibc"-as 
CXX="i386-linux-uclibc"-g++ CC="i386-linux-uclibc"-gcc 
LD="i386-linux-uclibc"-ld NM="i386-linux-uclibc"-nm 
OBJCOPY="i386-linux-uclibc"-objcopy OBJDUMP="i386-linux-uclibc"-objdump 
RANLIB="i386-linux-uclibc"-ranlib STRIP="i386-linux-uclibc"-strip CFLAGS=-Os 
  CXXFLAGS= ./configure --build=i386-linux-uclibc --host=i386-linux 
--target=i386-linux --disable-sanity-checks --prefix=/usr --bindir=/bin
checking build system type... Invalid configuration `i386-linux-uclibc': 
system `uclibc' not recognized
configure: error: /bin/sh ./support/config.sub i386-linux-uclibc failed.
make: *** [/home/ptxdist/state/bash.prepare] Error 1

any ideas?
jim