Ports build process to dockcross env

Author: mrmstn

.gitignore

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+/openssl-*/
+/otp_*/
+/sysroot/
+*.tar.gz

build-erlang-bootstrap.sh

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+#!/bin/bash
+set -e
+
+# Erlang bootstrap build script
+readonly OTP_VERSION="26.2.1"
+readonly BUILD_CROSS_TRIPLE="${CROSS_TRIPLE}"
+#readonly HOST_CROSS_TRIPLE="armv7l-linux-musleabihf"
+
+download_erlang() {
+    local url="https://github.com/erlang/otp/releases/download/OTP-$OTP_VERSION/otp_src_$OTP_VERSION.tar.gz"
+    local file="otp_src_$OTP_VERSION.tar.gz"
+
+    if [ ! -f "$file" ]; then
+        echo "Downloading Erlang/OTP..."
+        wget "$url" -O "$file"
+    fi
+
+    if [ ! -d "otp_src_$OTP_VERSION" ]; then
+        echo "Extracting Erlang/OTP..."
+        tar xzf "$file"
+    fi
+}
+
+build_erlang_bootstrap() {
+    local erlang_dir="otp_src_$OTP_VERSION"
+    export ERL_TOP="$(realpath ${erlang_dir})"
+    pushd "$erlang_dir"
+
+    ./configure \
+        --enable-bootstrap-only \
+        --build "${BUILD_CROSS_TRIPLE}"
+
+    make -j$(nproc)
+
+    popd
+}
+
+echo "Building Erlang/OTP bootstrap system $OTP_VERSION (${CROSS_TRIPLE})"
+download_erlang
+build_erlang_bootstrap
+echo "Erlang/OTP bootstrap build completed."

build-erlang.sh

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+#!/bin/bash
+set -e
+
+# Erlang build script
+readonly OTP_VERSION="26.2.1"
+readonly BUILD_CROSS_TRIPLE="x86_64-linux-gnu"
+readonly HOST_CROSS_TRIPLE="${CROSS_TRIPLE}"
+
+download_erlang() {
+    local url="https://github.com/erlang/otp/releases/download/OTP-$OTP_VERSION/otp_src_$OTP_VERSION.tar.gz"
+    local file="otp_src_$OTP_VERSION.tar.gz"
+
+    if [ ! -f "$file" ]; then
+        echo "Downloading Erlang/OTP..."
+        wget "$url" -O "$file"
+    fi
+
+    if [ ! -d "otp_src_$OTP_VERSION" ]; then
+        echo "Extracting Erlang/OTP..."
+        tar xzf "$file"
+    fi
+}
+
+build_erlang() {
+    local erlang_dir="otp_src_$OTP_VERSION"
+    pushd "$erlang_dir"
+
+    ./configure \
+        --without-javac \
+        --without-jinterface \
+        --without-wx \
+        --without-termcap \
+        --without-megaco \
+        --with-ssl=$(pwd)/../sysroot \
+        --disable-dynamic-ssl-lib \
+        --host "${HOST_CROSS_TRIPLE}" \
+        --build="${BUILD_CROSS_TRIPLE}"
+    make -j$(nproc)
+
+    local release_root="$(pwd)/release/otp_armv7l_linux_${OTP_VERSION}"
+    make release -j$(nproc) RELEASE_ROOT="$release_root"
+
+    popd
+}
+
+package_erlang(){
+    tar czf otp_${OTP_VERSION}_linux_any_armv7l_ssl_${OPENSSL_VERSION}.tar.gz ./otp*
+}
+
+echo "Building Erlang/OTP $OTP_VERSION"
+download_erlang
+build_erlang
+echo "Erlang/OTP build completed."

build-openssl.sh

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+#!/bin/bash
+set -e
+
+# OpenSSL build script
+readonly OPENSSL_VERSION="3.2.1"
+
+download_openssl() {
+    local url="https://www.openssl.org/source/openssl-$OPENSSL_VERSION.tar.gz"
+    local file="openssl-$OPENSSL_VERSION.tar.gz"
+
+    if [ ! -f "$file" ]; then
+        echo "Downloading OpenSSL..."
+        wget "$url" -O "$file"
+    fi
+
+    if [ ! -d "openssl-$OPENSSL_VERSION" ]; then
+        echo "Extracting OpenSSL..."
+        tar xzf "$file"
+    fi
+}
+
+build_openssl() {
+    local openssl_dir="openssl-$OPENSSL_VERSION"
+    local sysroot_dir="$(pwd)/sysroot"
+
+    mkdir -p "$sysroot_dir"
+    pushd "$openssl_dir"
+
+    export LDFLAGS="-L${CROSS_ROOT}/${CROSS_TRIPLE}/lib -latomic"
+    export RANLIB="/usr/bin/ranlib"
+
+    ./config linux-generic32 no-asm no-tests no-shared --prefix="$sysroot_dir" --cross-compile-prefix=/
+    make -j$(nproc) && make install_sw
+
+    popd
+    ln -sf "$sysroot_dir/lib64" "$sysroot_dir/lib"
+}
+
+echo "Building OpenSSL $OPENSSL_VERSION"
+download_openssl
+build_openssl
+echo "OpenSSL build completed."

build.sh

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+#!/bin/bash
+set -e
+
+readonly OPENSSL_VERSION="3.2.1"
+readonly OTP_VERSION="26.2.1"
+
+./dockcross-linux-armv7l-musl ./build-openssl.sh
+./dockcross-linux-x64 ./build-erlang-bootstrap.sh
+./dockcross-linux-armv7l-musl ./build-erlang.sh
+
+./package.sh