Update to CMake 3.20.2, add OpenCV and Boost libs (WIP), force to build 64bit on 64bit platforms...

linux-mips64/Dockerfile.in.with_lib

@@ -0,0 +1,39 @@
+FROM dockcross/base:latest
+
+# This is for 64-bit Little-Endian MIPS devices with hard floating point enabled
+
+#include "common.crosstool"
+
+# The cross-compiling emulator
+RUN apt-get update \
+&& apt-get install -y \
+  qemu-user \
+  qemu-user-static \
+&& apt-get clean --yes
+
+# The CROSS_TRIPLE is a configured alias of the "mips64el-unknown-linux-gnu" target.
+ENV CROSS_TRIPLE mips64el-unknown-linux-gnu
+
+ENV CROSS_ROOT ${XCC_PREFIX}/${CROSS_TRIPLE}
+ENV AS=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-as \
+    AR=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-ar \
+    CC=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-gcc \
+    CPP=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-cpp \
+    CXX=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-g++ \
+    LD=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-ld \
+    FC=${CROSS_ROOT}/bin/${CROSS_TRIPLE}-gfortran
+
+ENV QEMU_LD_PREFIX "${CROSS_ROOT}/${CROSS_TRIPLE}/sysroot"
+ENV QEMU_SET_ENV "LD_LIBRARY_PATH=${CROSS_ROOT}/lib:${QEMU_LD_PREFIX}"
+
+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 mips
+
+#include "common.lib"
+
+#include "common.label-and-env"