Update to buster from stretch add clang for x86_64

linux-x64-clang/Dockerfile.in

@@ -0,0 +1,27 @@
+FROM dockcross/base:latest
+MAINTAINER Matt McCormick "matt.mccormick@kitware.com"
+
+RUN apt-get update && \
+    apt-get -y install \
+    libelf-dev \
+    libssl-dev \
+    libc++-dev \
+    clang \
+    && apt-get clean --yes
+
+ENV CROSS_TRIPLE x86_64-linux-gnu
+ENV CROSS_ROOT /usr/bin
+ENV AS=/usr/bin/${CROSS_TRIPLE}-as \
+    AR=/usr/bin/${CROSS_TRIPLE}-ar \
+    CC=/usr/bin/clang \
+    CPP=/usr/bin/clang-cpp \
+    CXX=/usr/bin/clang++ \
+    LD=/usr/bin/${CROSS_TRIPLE}-ld \
+    FC=/usr/bin/${CROSS_TRIPLE}-gfortran
+
+COPY ${CROSS_TRIPLE}-noop.sh /usr/bin/${CROSS_TRIPLE}-noop
+
+COPY Toolchain.cmake /usr/lib/${CROSS_TRIPLE}/
+ENV CMAKE_TOOLCHAIN_FILE /usr/lib/${CROSS_TRIPLE}/Toolchain.cmake
+
+#include "common.label-and-env"

linux-x64-clang/Toolchain.cmake

@@ -0,0 +1,12 @@
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR x86_64)
+
+set(cross_triple "x86_64-linux-gnu")
+
+set(CMAKE_C_COMPILER $ENV{CC})
+set(CMAKE_CXX_COMPILER $ENV{CXX})
+set(CMAKE_Fortran_COMPILER $ENV{FC})
+set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
+
+set(CMAKE_CROSSCOMPILING_EMULATOR /usr/bin/${cross_triple}-noop)

linux-x64-clang/x86_64-linux-gnu-noop.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+exec "$@"