buildroot fails when selecting corei7-avx

buildroot-log

--> env HOSTCXX=/bin/g++ HOSTCC=/bin/gcc make
host-binutils 2.24 Configuring
(cd /home/buschman/wk/buildroot-2016.02/output/build/host-binutils-2.24/ && rm -rf config.cache; PATH="/home/buschman/wk/buildroot-2016.02/output/host/bin:/home/buschman/wk/buildroot-2016.02/output/host/sbin:/home/buschman/wk/buildroot-2016.02/output/host/usr/bin:/home/buschman/wk/buildroot-2016.02/output/host/usr/sbin:/usr/lib64/qt-3.3/bin:/usr/lib64/ccache:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/opt/dell/srvadmin/bin:/home/buschman/.local/bin:/home/buschman/bin" AR="/bin/ar" AS="/bin/as" LD="/bin/ld" NM="/bin/nm" CC="/bin/gcc" GCC="/bin/gcc" CXX="/bin/g++" CPP="/bin/cpp" OBJCOPY="/bin/objcopy" RANLIB="/bin/ranlib" CPPFLAGS="-I/home/buschman/wk/buildroot-2016.02/output/host/usr/include" CFLAGS="-O2 -I/home/buschman/wk/buildroot-2016.02/output/host/usr/include" CXXFLAGS="-O2 -I/home/buschman/wk/buildroot-2016.02/output/host/usr/include" LDFLAGS="-L/home/buschman/wk/buildroot-2016.02/output/host/lib -L/home/buschman/wk/buildroot-2016.02/output/host/usr/lib -Wl,-rpath,/home/buschman/wk/buildroot-2016.02/output/host/usr/lib" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG="/home/buschman/wk/buildroot-2016.02/output/host/usr/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_LIBDIR="/home/buschman/wk/buildroot-2016.02/output/host/usr/lib/pkgconfig:/home/buschman/wk/buildroot-2016.02/output/host/usr/share/pkgconfig" INTLTOOL_PERL=/bin/perl CFLAGS="-O2 -I/home/buschman/wk/buildroot-2016.02/output/host/usr/include" LDFLAGS="-L/home/buschman/wk/buildroot-2016.02/output/host/lib -L/home/buschman/wk/buildroot-2016.02/output/host/usr/lib -Wl,-rpath,/home/buschman/wk/buildroot-2016.02/output/host/usr/lib" ac_cv_prog_MAKEINFO=missing CONFIG_SITE=/dev/null ./configure --prefix="/home/buschman/wk/buildroot-2016.02/output/host/usr" --sysconfdir="/home/buschman/wk/buildroot-2016.02/output/host/etc" --localstatedir="/home/buschman/wk/buildroot-2016.02/output/host/var" --enable-shared --disable-static --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --disable-debug --with-xmlto=no --with-fop=no --disable-dependency-tracking  --disable-multilib --disable-werror --target=-buildroot-linux-uclibc --disable-shared --enable-static --with-sysroot=/home/buschman/wk/buildroot-2016.02/output/host/usr/-buildroot-linux-uclibc/sysroot --enable-poison-system-directories --disable-sim --disable-gdb  )
configure: loading site script /dev/null
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... configure: error: /bin/sh ./config.sub -buildroot-linux-uclibc failed
configure: WARNING: cache variable ac_cv_target contains a newline
package/pkg-generic.mk:185: recipe for target '/home/buschman/wk/buildroot-2016.02/output/build/host-binutils-2.24/.stamp_configured' failed
make[1]: *** [/home/buschman/wk/buildroot-2016.02/output/build/host-binutils-2.24/.stamp_configured] Error 1
Makefile:36: recipe for target '_all' failed
make: *** [_all] Error 2