# crosstool.common-manylinux
#
# Common Docker instructions to install "crosstool-ng" and build a full
# cross-compiler suite from a crosstool-ng configuration, CROSSTOOL_CONFIG.
#
# This import complements the "dockcross/base" image, adding:
# - "ct-ng", a cross-compiler building utilty.
# - A cross-compiler suite configured in "crosstool-ng.config".
#
# The generated cross-compiler will have a CROSS_ROOT of:
#   ${XCC_PREFIX}/${CROSS_TRIPLE}
#
# A given platform will need to supply the appropriate "crosstool-ng.config" to
# generate its cross-compiler. This can be built using "ct-ng menuconfig" to
# generate a configuration.

ENV MANYLINUX_DEPS="glibc-devel glibc-devel.i686 libstdc++-devel glib2-devel libX11-devel libXext-devel libXrender-devel mesa-libGL-devel libICE-devel libSM-devel"

ENV PYTHON_COMPILE_DEPS="python3-devel zlib-devel bzip2-devel expat-devel ncurses-devel readline-devel tk-devel gdbm-devel libdb-devel libpcap-devel xz-devel openssl-devel keyutils-libs-devel krb5-devel libcom_err-devel libidn-devel curl-devel perl-devel"

ENV TOOLCHAIN_DEPS="devtoolset-9-binutils devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-gcc-gfortran"

# Install dependent packages required for `ct-ng`.
RUN \
  yum -y update && \
  yum -y install \
    gawk \
    gperf \
    help2man \
    texinfo \
    flex \
    ncurses-devel \
    glibc-static \
    systemtap-devel \
    systemtap-sdt-devel \
    ${TOOLCHAIN_DEPS} \
    ${PYTHON_COMPILE_DEPS} \
    ${MANYLINUX_DEPS} && \
  yum clean all

# Add symlink for compatibility
RUN ln -s /usr/bin/python3 /usr/bin/python

ENV XCC_PREFIX=/usr/xcc

# Add the crosstool-ng script and image-specific toolchain configuration into
# /dockcross/.
#
# Afterwards, we will leave the "ct-ng" config in the image as a reference
# for users.
COPY \
  imagefiles/install-crosstool-ng-toolchain.sh \
  manylinux2014-aarch64/crosstool-ng.config \
  /dockcross/

# Build and install the toolchain, cleaning up artifacts afterwards.
RUN \
  mkdir /dockcross/crosstool && \
  cd /dockcross/crosstool && \
  /dockcross/install-crosstool-ng-toolchain.sh \
  -p "${XCC_PREFIX}" \
  -c /dockcross/crosstool-ng.config && \
  rm -rf /dockcross/crosstool /dockcross/install-crosstool-ng-toolchain.sh && \
  # Remove sudo provided by devtoolset since it doesn't work with
  # our sudo wrapper calling gosu.
  rm -f /opt/rh/devtoolset-9/root/usr/bin/sudo

# Restore our default workdir (from "dockcross/base").
WORKDIR /work