Adjusting the Toolchain LFS

[Garrett85]

I'M working my way through the linux from scratch project and I'M currently stuck on the following page, what does it want me to do?

http://www.linuxfromscratch.org/lfs/view/stable/chapter05/adjusting.html

Does it just want me to run the commands in the grey box listed below while in the /lib directory?

SPECS=dirname $($LFS_TGT-gcc -print-libgcc-file-name)/specs
$LFS_TGT-gcc -dumpspecs | sed \
-e 's@/lib(64)\?/ld@/tools&@g' \
-e "/^*cpp:$/{n;s,$, -isystem /tools/include,}" > $SPECS
echo "New specs file is: $SPECS"
unset SPECS