[linux/arm64] Host vs foreign arch

Dockerfile.mri.erb

@@ -23,8 +23,10 @@ RUN rm -f /usr/local/bin/sudo && \
     echo "%sudo  ALL=(ALL)       ALL" >> /etc/sudoers
 <% else %>
 ENV DEBIAN_FRONTEND noninteractive
-RUN apt-get -y update && \
-    apt-get install -y sudo wget autoconf cmake curl git-core pkg-config build-essential xz-utils unzip gnupg2 dirmngr zlib1g-dev libreadline-dev libsqlite0-dev libssl-dev libyaml-dev libffi-dev && \
+RUN dpkg --add-architecture <%= foreign_dpkg_arch %> && \
+    apt-get -y update && \
+    apt-get install -y sudo wget autoconf cmake curl git-core pkg-config build-essential xz-utils unzip gnupg2 dirmngr && \
+    apt-get install -y zlib1g-dev:<%= foreign_dpkg_arch %> libreadline-dev:<%= foreign_dpkg_arch %> libsqlite0-dev:<%= foreign_dpkg_arch %> libssl-dev:<%= foreign_dpkg_arch %> libyaml-dev:<%= foreign_dpkg_arch %> libffi-dev:<%= foreign_dpkg_arch %> && \
     rm -rf /var/lib/apt/lists/*
 <% end %>
 
@@ -76,10 +78,10 @@ USER root
 
 <% if platform=~/x64-mingw-ucrt/ %>
 COPY --from=larskanis/mingw64-ucrt:20.04 \
-    /build/binutils-mingw-w64-x86-64_2.34-6ubuntu1.3+8.8_<%= dpkg_arch %>.deb \
-    /build/g++-mingw-w64-x86-64_9.3.0-17ubuntu1~20.04+22~exp1ubuntu4_<%= dpkg_arch %>.deb \
-    /build/gcc-mingw-w64-base_9.3.0-17ubuntu1~20.04+22~exp1ubuntu4_<%= dpkg_arch %>.deb \
-    /build/gcc-mingw-w64-x86-64_9.3.0-17ubuntu1~20.04+22~exp1ubuntu4_<%= dpkg_arch %>.deb \
+    /build/binutils-mingw-w64-x86-64_2.34-6ubuntu1.3+8.8_<%= host_dpkg_arch %>.deb \
+    /build/g++-mingw-w64-x86-64_9.3.0-17ubuntu1~20.04+22~exp1ubuntu4_<%= host_dpkg_arch %>.deb \
+    /build/gcc-mingw-w64-base_9.3.0-17ubuntu1~20.04+22~exp1ubuntu4_<%= host_dpkg_arch %>.deb \
+    /build/gcc-mingw-w64-x86-64_9.3.0-17ubuntu1~20.04+22~exp1ubuntu4_<%= host_dpkg_arch %>.deb \
     /build/mingw-w64-common_7.0.0-2_all.deb \
     /build/mingw-w64-x86-64-dev_7.0.0-2_all.deb \
     /debs/
@@ -90,6 +92,7 @@ RUN apt-get -y update && \
     apt-get install -y <%
 if platform=~/darwin/        %> clang python lzma-dev libxml2-dev libssl-dev libc++-10-dev <% end %><%
 if platform=~/aarch64-linux/ %> gcc-aarch64-linux-gnu g++-aarch64-linux-gnu <% end %><%
+if platform=~/x86_64-linux/        %> gcc-x86-64-linux-gnu g++-x86-64-linux-gnu <% end %><%
 if platform=~/arm-linux/     %> gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf <% end %><%
 if platform=~/x86-mingw32/   %> gcc-mingw-w64-i686 g++-mingw-w64-i686 <% end %><%
 if platform=~/x64-mingw32/   %> gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64 <% end %> && \

Rakefile

@@ -10,23 +10,23 @@ DOCKERHUB_USER = ENV['DOCKERHUB_USER'] || "larskanis"
 docker_build_cmd = Shellwords.split(ENV['RCD_DOCKER_BUILD'] || "docker build")
 
 platforms = [
-  ["x86-mingw32", "i686-w64-mingw32"],
-  ["x64-mingw32", "x86_64-w64-mingw32"],
-  ["x64-mingw-ucrt", "x86_64-w64-mingw32"],
-  ["x86-linux", "i686-redhat-linux"],
-  ["x86_64-linux", "x86_64-redhat-linux"],
-  ["x86_64-darwin", "x86_64-apple-darwin"],
-  ["arm64-darwin", "aarch64-apple-darwin"],
-  ["arm-linux", "arm-linux-gnueabihf"],
-  ["aarch64-linux", "aarch64-linux-gnu"],
+  ["x86-mingw32", "i686-w64-mingw32", "i386"],
+  ["x64-mingw32", "x86_64-w64-mingw32", "amd64"],
+  ["x64-mingw-ucrt", "x86_64-w64-mingw32", "amd64"],
+  ["x86-linux", "i686-redhat-linux", "i386"],
+  ["x86_64-linux", "x86_64-redhat-linux", "amd64"],
+  ["x86_64-darwin", "x86_64-apple-darwin", "amd64"],
+  ["arm64-darwin", "aarch64-apple-darwin", "arm64"],
+  ["arm-linux", "arm-linux-gnueabihf", "armhf"],
+  ["aarch64-linux", "aarch64-linux-gnu", "arm64"],
 ]
 
 namespace :build do
 
-  platforms.each do |platform, target|
+  platforms.each do |platform, target, foreign_dpkg_arch|
     sdf = "Dockerfile.mri.#{platform}"
 
-    dpkg_arch = case ENV["DOCKER_BUILD_PLATFORM"]
+    host_dpkg_arch = case ENV["DOCKER_BUILD_PLATFORM"]
     when /arm64/
       "arm64"
     when /amd64/