first commit from PC

lfs/Dockerfile

@@ -0,0 +1,4 @@
+FROM debian
+COPY cross-toolchain.sh /
+RUN chmod +x cross-toolchain.sh
+RUN . /cross-toolchain.sh

lfs/cross-toolchain.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+apt-get update
+apt-get upgrade -y
+apt-get install -y wget
+export LFS=/mnt/lfs
+wget https://mirror.dogado.de/LFS/lfs-packages/lfs-packages-11.3.tar
+tar xf lfs-packages-11.3.tar
+mv 11.3 sources
+mv sources $LFS
+groupadd lfs
+useradd -s /bin/bash -g lfs -m -k /dev/null lfs
+passwd lfs
+chown -v lfs $LFS/{usr{,/*},lib,var,etc,bin,sbin,tools}
+case $(uname -m) in
+  x86_64) chown -v lfs $LFS/lib64 ;;
+esac
+su - lfs
+cat > ~/.bash_profile << "EOF"
+exec env -i HOME=$HOME TERM=$TERM PS1='\u:\w\$ ' /bin/bash
+EOF
+cat > ~/.bashrc << "EOF"
+set +h
+umask 022
+LFS=/mnt/lfs
+LC_ALL=POSIX
+LFS_TGT=$(uname -m)-lfs-linux-gnu
+PATH=/usr/bin
+if [ ! -L /bin ]; then PATH=/bin:$PATH; fi
+PATH=$LFS/tools/bin:$PATH
+CONFIG_SITE=$LFS/usr/share/config.site
+export LFS LC_ALL LFS_TGT PATH CONFIG_SITE
+EOF
+source ~/.bash_profile
+cd $LFS/sources
+tar xf binutils-2.40.tar.xz
+pushd binutils-2.40
+mkdir -v build
+cd       build
+../configure --prefix=$LFS/tools \
+             --with-sysroot=$LFS \
+             --target=$LFS_TGT   \
+             --disable-nls       \
+             --enable-gprofng=no \
+             --disable-werror
+make
+make install
+popd
+