Cannot compile buildroot 2014R1-RC2 on Ubuntu 14.04

Hi!

I use Ubuntu 14.04, blackfin-buildroot 2014R1-RC2 and toolchain 2014R1-RC1. When I try to make buildroot with "make bf609-ezkit_defconfig" and then "make" I get this error:

checking build system type... Invalid configuration `i686-pc-linux-': machine `i686-pc-linux' not recognized

configure: error: /bin/bash ./config.sub i686-pc-linux- failed

make: *** [/home/q/blackfin/blackfin-buildroot/output/build/alsa-lib-1.0.26/.stamp_configured] Error 1

Bfin-linux-uclibc-gcc -v output:


Using built-in specs.

COLLECT_GCC=./bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc

COLLECT_LTO_WRAPPER=/home/q/blackfin/toolchain/bfin-linux-uclibc/bin/../libexec/gcc/bfin-linux-uclibc/4.5.3/lto-wrapper

Target: bfin-linux-uclibc

Configured with: /usr/src/redhat/BUILD/blackfin-toolchain-2014R1_45/gcc-4.5/configure --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=bfin-linux-uclibc --prefix=/opt/uClinux/bfin-linux-uclibc --disable-libstdcxx-pch --with-sysroot=/opt/uClinux/bfin-linux-uclibc/bfin-linux-uclibc/runtime --enable-threads=posix --enable-shared --enable-clocale=generic --disable-symvers --disable-libssp --disable-libffi --disable-libgcj --enable-version-specific-runtime-libs --enable-__cxa_atexit --with-bugurl=URL:http://blackfin.uclinux.org/gf/project/toolchain/tracker --with-pkgversion=ADI-2014R1_45-RC2

Thread model: posix

gcc version 4.5.3 (ADI-2014R1_45-RC2)


No matter gcc 4.3 or gcc 4.5 I use - the result is the same. How should I build it?