Add support for arm64 docker builds

Update README.md

Added Docker instructions for static Linux arm64 builds

relaunch check

Update Makefile

/bin/sh compatbility

Dockerfile.linux

@@ -1,17 +1,25 @@
-FROM ubuntu:16.04
+ARG UBUNTU_VERSION=16.04
+FROM ubuntu:${UBUNTU_VERSION}
+ARG UBUNTU_VERSION
 
 ARG THREADS=1
 ARG QT_VERSION=v5.15.3-lts-lgpl
+ARG DEBIAN_FRONTEND=noninteractive
 
 ENV CFLAGS="-fPIC"
 ENV CPPFLAGS="-fPIC"
 ENV CXXFLAGS="-fPIC"
 ENV SOURCE_DATE_EPOCH=1397818193
 
 RUN apt update && \
+    if [ "$UBUNTU_VERSION" = "18.04" ]; then \
+        export BUILD_DEPS="build-essential libpng-dev libx11-xcb-dev libxext-dev"; \
+    else \
+        export BUILD_DEPS="libpng12-dev"; \
+    fi && \
     apt install -y automake autopoint bison gettext git gperf libgl1-mesa-dev libglib2.0-dev \
-    libpng12-dev libpthread-stubs0-dev libsodium-dev libtool-bin libudev-dev libusb-1.0-0-dev mesa-common-dev \
-    pkg-config python wget xutils-dev
+    libpthread-stubs0-dev libsodium-dev libtool-bin libudev-dev libusb-1.0-0-dev mesa-common-dev \
+    pkg-config python wget xutils-dev $BUILD_DEPS
 
 RUN git clone -b xorgproto-2020.1 --depth 1 https://gitlab.freedesktop.org/xorg/proto/xorgproto && \
     cd xorgproto && \
@@ -194,9 +202,16 @@ RUN wget https://www.nlnetlabs.nl/downloads/unbound/unbound-1.13.2.tar.gz && \
     make -j$THREADS install && \
     rm -rf $(pwd)
 
-RUN rm /usr/lib/x86_64-linux-gnu/libX11.a && \
-    rm /usr/lib/x86_64-linux-gnu/libXext.a && \
-    rm /usr/lib/x86_64-linux-gnu/libX11-xcb.a && \
+RUN if [ "$(uname -m)" = "aarch64" ]; then \
+        export LIBDIR="/usr/lib/aarch64-linux-gnu"; \
+        export QT_PLATFORM="linux-aarch64-gnu-g++"; \
+    else \
+        export LIBDIR="/usr/lib/x86_64-linux-gnu"; \
+        export QT_PLATFORM="linux-g++-64"; \
+    fi && \
+    rm $LIBDIR/libX11.a && \
+    rm $LIBDIR/libXext.a && \
+    rm $LIBDIR/libX11-xcb.a && \
     git clone git://code.qt.io/qt/qt5.git -b ${QT_VERSION} --depth 1 && \
     cd qt5 && \
     git clone git://code.qt.io/qt/qtbase.git -b ${QT_VERSION} --depth 1 && \
@@ -215,7 +230,7 @@ RUN rm /usr/lib/x86_64-linux-gnu/libX11.a && \
     sed -ri s/\(Libs:.*\)/\\1\ -lz/ /usr/local/lib/pkgconfig/freetype2.pc && \
     sed -ri s/\(Libs:.*\)/\\1\ -lXau/ /usr/local/lib/pkgconfig/xcb.pc && \
     sed -i s/\\/usr\\/X11R6\\/lib64/\\/usr\\/local\\/lib/ qtbase/mkspecs/linux-g++-64/qmake.conf && \
-    ./configure --prefix=/usr -platform linux-g++-64 -opensource -confirm-license -release -static -no-avx \
+    ./configure --prefix=/usr -platform $QT_PLATFORM -opensource -confirm-license -release -static -no-avx \
     -opengl desktop -qpa xcb -xcb -xcb-xlib -feature-xlib -system-freetype -fontconfig -glib \
     -no-dbus -no-feature-qml-worker-script -no-linuxfb -no-openssl -no-sql-sqlite -no-kms -no-use-gold-linker \
     -qt-harfbuzz -qt-libjpeg -qt-libpng -qt-pcre -qt-zlib \

Makefile

@@ -56,6 +56,9 @@ release-linux-ppc64le:
 release-static:
 	mkdir -p $(builddir)/release && cd $(builddir)/release && cmake -D STATIC=ON -D DEV_MODE=$(or ${DEV_MODE},OFF) -DMANUAL_SUBMODULES=${MANUAL_SUBMODULES} -D ARCH="x86-64" -D BUILD_64=ON -D CMAKE_BUILD_TYPE=Release $(topdir) && $(MAKE)
 
+release-static-linux-armv8:
+	mkdir -p $(builddir)/release && cd $(builddir)/release && cmake -D STATIC=ON -D DEV_MODE=$(or ${DEV_MODE},OFF) -DMANUAL_SUBMODULES=${MANUAL_SUBMODULES} -D ARCH="armv8-a" -D BUILD_64=ON -D CMAKE_BUILD_TYPE=Release $(topdir) && $(MAKE)
+
 debug-static-win64:
 	mkdir -p $(builddir)/debug && cd $(builddir)/debug && cmake -D STATIC=ON -G "MSYS Makefiles" -D DEV_MODE=$(or ${DEV_MODE},ON) -DMANUAL_SUBMODULES=${MANUAL_SUBMODULES} -D ARCH="x86-64" -D BUILD_64=ON -D CMAKE_BUILD_TYPE=Debug -D BUILD_TAG="win-x64" -D CMAKE_TOOLCHAIN_FILE=$(topdir)/cmake/64-bit-toolchain.cmake -D MSYS2_FOLDER=$(shell cd ${MINGW_PREFIX}/.. && pwd -W) -D MINGW=ON $(topdir) && $(MAKE)
 

README.md

@@ -138,13 +138,17 @@ Packaging for your favorite distribution would be a welcome contribution!
    docker build --tag monero:build-env-linux --build-arg THREADS=4 --file Dockerfile.linux .
    ```
    \* `4` - number of CPU threads to use
+
+   For arm64 builds, add `--build-arg UBUNTU_VERSION=18.04` as an argument.
 
 4. Build
    ```
    docker run --rm -it -v <MONERO_GUI_DIR_FULL_PATH>:/monero-gui -w /monero-gui monero:build-env-linux sh -c 'make release-static -j4'
    ```
    \* `<MONERO_GUI_DIR_FULL_PATH>` - absolute path to `monero-gui` directory  
+   \* `release-static` - replace with `release-static-linux-armv8` if building for arm64  
    \* `4` - number of CPU threads to use
+
 5. Monero GUI Linux static binaries will be placed in  `monero-gui/build/release/bin` directory
 6. (*Optional*) Compare `monero-wallet-gui` SHA-256 hash to the one obtained from a trusted source
    ```