%general-entities; ]> We will need to setup target specific flags for the compiler and linkers. export BUILD32="-mabi=32" export BUILDN32="-mabi=n32" export BUILD64="-mabi=64" You will need to set your host target triplet for o32 bit: export CLFS_TARGET32="$(echo ${MACH_TYPE}| sed -e 's/64//g')" To prevent errors when you come back to your build, we will export these variables to prevent any build issues in the future: echo export BUILD32=\""${BUILD32}\"" >> ~/.bash_profile echo export BUILDN32=\""${BUILDN32}\"" >> ~/.bash_profile echo export BUILD64=\""${BUILD64}\"" >> ~/.bash_profile echo export CLFS_TARGET32=\""${CLFS_TARGET32}\"" >> ~/.bash_profile