...
#
# Debian Cross-Toolchain
debian_toolchain.tar:
-mkdir ./$$(basename $@ .tar)
${MAKE} make_toolchain
# note, this is only a sub-taget, so that we build in a subprocess, and debian_version.mk is included
.PHONY: make_toolchain
make_toolchain:
-mkdir ./debian_toolchain
${SUDO} ${DBOOTSTRAP} --arch=amd64 --variant=minbase --include="${ADDITIONAL_TOOLCHAIN_PACKAGES} gcc${GCC_POSTFIX} g++${GCC_POSTFIX} libc6-dev${LIBC_POSTFIX}" ${DEBIAN_VERSION} ./$$(basename $@ .tar) http://ftp.debian.org/debian/
${SUDO} ${DBOOTSTRAP} --arch=amd64 --variant=minbase --include="${ADDITIONAL_TOOLCHAIN_PACKAGES} gcc${GCC_POSTFIX} g++${GCC_POSTFIX} libc6-dev${LIBC_POSTFIX}" ${DEBIAN_VERSION} ./debian_toolchain http://ftp.debian.org/debian/
${SUDO} chroot ./$$(basename $@ .tar) ldconfig
${SUDO} chroot ./debian_toolchain ldconfig
cd $$(basename $@ .tar); ${SUDO} tar -cf "../$@" .
cd debian_toolchain && ${SUDO} tar -cf "../debian_toolchain.tar" .
${SUDO} rm -R ./$$(basename $@ .tar)
${SUDO} rm -R ./debian_toolchain
# Export environment shell script for the toolchain