public API of tensorflow). We don't expect this to be breaking, unless you
    were importing directly from the implementation.
*   TensorFlow 1.15 is built using devtoolset7 (GCC7) on Ubuntu 16. This may
    lead to ABI incompatibilities with extensions built against earlier versions
    of TensorFlow.
*   Deprecated the use of `constraint=` and `.constraint` with ResourceVariable.

cd "${TARGET}-src"

# Build a devtoolset cross-compiler based on our glibc 2.12/glibc 2.17 sysroot setup.
case "${VERSION}" in
devtoolset-7)
  wget "http://vault.centos.org/centos/6/sclo/Source/rh/devtoolset-7/devtoolset-7-gcc-7.3.1-5.15.el6.src.rpm"
  rpm2cpio "devtoolset-7-gcc-7.3.1-5.15.el6.src.rpm" |cpio -idmv
  tar -xvjf "gcc-7.3.1-20180303.tar.bz2" --strip 1
  ;;
devtoolset-9)

# on why we cannot reference BASE_IMAGE again unless we declare it again.
################################################################################

# Install devtoolset build dependencies
COPY setup.sources.sh /setup.sources.sh
COPY setup.packages.sh /setup.packages.sh
COPY builder.packages.txt /builder.packages.txt

RUN /setup.sources.sh && /setup.packages.sh /builder.packages.txt