buildroot to build toolchain on Linux

hi hippo

When i had "build" then occur error messges http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

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# Remove wordexp header since wordexp support is disabled.

rm -f /home/jay/buildroot/toolchain_build_nios2/uClibc_dev//usr/include/wordexp. h

chown -R `id | sed &#39;s/^uid=\([0-9]*\).*gid=\([0-9]*\).*$/\1:\2/&#39;` /home/jay/buil droot/toolchain_build_nios2/uClibc_dev//usr/include

install -d /home/jay/buildroot/toolchain_build_nios2/uClibc_dev//usr/lib

install -m 644 lib/*.[ao] /home/jay/buildroot/toolchain_build_nios2/uClibc_dev// usr/lib/

install: cannot stat `lib/*.[ao]&#39;: No such file or directory

make[1]: [install_dev] Error 1 (ignored)

make[1]: Leaving directory `/home/jay/buildroot/toolchain_build_nios2/uClibc&#39;

which: no bison in (/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bi n:/home/jay/bin)

You must install &#39;bison&#39; on your build machine

make: *** [binutils-dependancies] Error 1

./build: line 75: cd: /home/jay/buildroot/build_nios2/staging_dir/include/linux: &#27794;&#26377;&#27492;&#19968;&#27284;&#26696;&#25110;&#30446;&#37636;

rm: cannot remove ‘config.h’: &#27794;&#26377;&#27492;&#19968;&#27284;&#26696;&#25110;&#30446;&#37636;

rm: cannot remove ‘autoconf.h’: &#27794;&#26377;&#27492;&#19968;&#27284;&#26696;&#25110;&#30446;&#37636;

Can you tell me how to install "bison" on my build machine ?

thx http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif