#
# Before including this script, make sure to set:
#
# WINEARCH environment variable to either "win64" or "win32"
# MXE_TARGET_ARCH argument to either "x86_64" or "i686". See http://mxe.cc/
# MXE_TARGET_THREAD argument to either "" or ".posix". Default is win32. See http://mxe.cc/
# MXE_TARGET_LINK argument to either "static" or "shared"
#
# For example:
#
#  ENV WINEARCH win64
#  ARG MXE_TARGET_ARCH=x86_64
#  ARG MXE_TARGET_THREAD=
#  ARG MXE_TARGET_LINK=shared
#

# mxe master 2021-05-10
ARG MXE_GIT_TAG=9cae21c297a836aea6e80037238fbdb097ba4e74

ENV CMAKE_TOOLCHAIN_FILE /usr/src/mxe/usr/${MXE_TARGET_ARCH}-w64-mingw32.${MXE_TARGET_LINK}${MXE_TARGET_THREAD}/share/cmake/mxe-conf.cmake

ARG DEBIAN_FRONTEND=noninteractive

#
# WINE is used as an emulator for try_run and tests with CMake.
#
# Other dependencies are from the listed MXE requirements:
#   http://mxe.cc/#requirements
# 'cmake' is omitted because it is installed from source in the base image
#
RUN \
  apt-get update && \
  apt-get install --no-install-recommends --yes \
    autoconf \
    automake \
    autopoint \
    bash \
    bison \
    bzip2 \
    flex \
    gettext \
    git \
    g++ \
    g++-multilib \
    gperf \
    intltool \
    libffi-dev \
    libgdk-pixbuf2.0-dev \
    libtool-bin \
    libltdl-dev \
    libssl-dev \
    libxml-parser-perl \
    libc6-dev-i386 \
    lzip \
    make \
    openssl \
    p7zip-full \
    patch \
    perl \
    pkg-config \
    python \
    ruby \
    scons \
    sed \
    unzip \
    wget \
    wine \
    xz-utils \
  && \
  #
  # Install Wine
  #
  dpkg --add-architecture i386 && \
  apt-get update && \
  apt-get install -y wine32 && \
  wine hostname && \
  #
  # Download MXE sources
  #
  cd /usr/src && \
  git clone https://github.com/mxe/mxe.git && \
  cd mxe && \
  git checkout ${MXE_GIT_TAG} && \
  #
  # Configure "settings.mk" required to build MXE
  #
  cd /usr/src/mxe && \
  echo "MXE_TARGETS := ${MXE_TARGET_ARCH}-w64-mingw32.${MXE_TARGET_LINK}${MXE_TARGET_THREAD}" > settings.mk && \
  echo "MXE_USE_CCACHE :="                                                       >> settings.mk && \
  echo "MXE_PLUGIN_DIRS := plugins/gcc10"                                        >> settings.mk && \
  echo "LOCAL_PKG_LIST := cc cmake"                                              >> settings.mk && \
  echo ".DEFAULT local-pkg-list:"                                                >> settings.mk && \
  echo "local-pkg-list: \$(LOCAL_PKG_LIST)"                                      >> settings.mk && \
  #
  # Build MXE
  #
  cd /usr/src/mxe && \
  make JOBS=$(nproc) && \
  #
  # Cleanup: By keeping the MXE build system (Makefile, ...), derived images will be able to install
  #          additional packages.
  #
  rm -rf log pkg && \
  #
  # Update MXE toolchain file
  #
  echo 'set(CMAKE_CROSSCOMPILING_EMULATOR "/usr/bin/wine")' >> ${CMAKE_TOOLCHAIN_FILE} && \
  #
  # Replace cmake and cpack binaries
  #
  cd /usr/bin && \
  rm cmake cpack && \
  ln -s /usr/src/mxe/usr/bin/${MXE_TARGET_ARCH}-w64-mingw32.${MXE_TARGET_LINK}${MXE_TARGET_THREAD}-cmake cmake && \
  ln -s /usr/src/mxe/usr/bin/${MXE_TARGET_ARCH}-w64-mingw32.${MXE_TARGET_LINK}${MXE_TARGET_THREAD}-cpack cpack

ENV PATH ${PATH}:/usr/src/mxe/usr/bin
ENV CROSS_TRIPLE ${MXE_TARGET_ARCH}-w64-mingw32.${MXE_TARGET_LINK}${MXE_TARGET_THREAD}
ENV AS=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-as \
    AR=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-ar \
    CC=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-gcc \
    CPP=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-cpp \
    CXX=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-g++ \
    LD=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-ld \
    FC=/usr/src/mxe/usr/bin/${CROSS_TRIPLE}-gfortran

WORKDIR /work