FROM dockcross/base:latest
MAINTAINER Matt McCormick "matt.mccormick@kitware.com"

ENV XCC_PREFIX /usr/xcc
ENV CROSS_TRIPLE armv7-w64-mingw32
ENV CROSS_ROOT ${XCC_PREFIX}/${CROSS_TRIPLE}-cross

ARG DOWNLOAD_URL=https://github.com/mstorsjo/llvm-mingw/releases/download/20210423/llvm-mingw-20210423-msvcrt-ubuntu-18.04-x86_64.tar.xz
ENV DOWNLOAD_URL=${DOWNLOAD_URL}

RUN mkdir -p ${CROSS_ROOT} && wget -qO- "${DOWNLOAD_URL}" | tar xJvf - --strip 1 -C ${CROSS_ROOT}/ > /dev/null

ENV AS=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-as \
    AR=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-ar \
    CC=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-clang \
    CPP=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-cpp \
    CXX=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-clang++ \
    LD=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-ld \
    FC=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-gfortran

COPY Toolchain.cmake ${CROSS_ROOT}/
ENV CMAKE_TOOLCHAIN_FILE ${CROSS_ROOT}/Toolchain.cmake

# Linux kernel cross compilation variables
ENV PATH ${PATH}:${CROSS_ROOT}/bin
ENV CROSS_COMPILE ${CROSS_TRIPLE}-
ENV ARCH arm

#include "common.label-and-env"