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‎.github/workflows/build.yml‎

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name: Build Toolchain
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on:
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push:
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branches:
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- main
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tags:
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- v**
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pull_request:
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jobs:
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build:
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name: Build Toolchain
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runs-on: ubuntu-22.04
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strategy:
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matrix:
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target_arch: [aarch64, arm, i686, x86_64]
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steps:
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- name: Checkout Repo
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uses: actions/checkout@main
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with:
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path: ${{ github.workspace }}
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- name: Build Toolchain
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env:
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TOOLCHAIN_ARCH: ${{ matrix.target_arch }}
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run: |
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bash ./build.sh
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- name: Waiting for debugger
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if: ${{ failure() }}
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uses: mxschmitt/action-tmate@v3
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- name: Upload Build Archive
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uses: actions/upload-artifact@v2
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with:
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name: newer-toolchain-${{ matrix.target_arch }}-${{ github.sha }}
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path: ${{ github.workspace }}/build/
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release:
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name: Create Github Release
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if: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/tags/') }}
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needs: build
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runs-on: ubuntu-22.04
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steps:
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- name: Fetch archives
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uses: actions/download-artifact@v2
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with:
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path: ./
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- name: Copy archives
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run: |
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cp newer-toolchain-*-${{ github.sha }}/*.tar.bz2 ./
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- name: Get checksums
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id: checksums
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run: |
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checksums=$(printf 'SHA-256:\n```\n%s\n```\n' "$(sha256sum *.tar.bz2)")
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checksums="${checksums//'%'/'%25'}"
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checksums="${checksums//$'\n'/'%0A'}"
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checksums="${checksums//$'\r'/'%0D'}"
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echo "::set-output name=checksums::$checksums"
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- name: Get tag
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id: tag
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uses: dawidd6/action-get-tag@v1
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- name: Publish GitHub release
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uses: svenstaro/upload-release-action@v2
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with:
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repo_token: ${{ secrets.GITHUB_TOKEN }}
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file: "*.tar.bz2"
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file_glob: true
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release_name: "Android NDK toolchain version r17c with gcc"
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tag: ${{ steps.tag.outputs.tag }}
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body: ${{ steps.checksums.outputs.checksums }}

‎.gitignore‎

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# Cache files
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/cache/
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# Temp files
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/tmp/
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# VSCode
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/.vscode/

‎README.md‎

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# NDK GCC Toolchain
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‎build.sh‎

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#!/bin/bash
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# build.sh - script to build a custom NDK toolchain
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#
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# Copyright 2022 Chongyun Lee <[email protected]>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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set -e -u -o pipefail
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_SCRIPTDIR=$(cd "$(realpath "$(dirname "$0")")"; pwd)
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source $_SCRIPTDIR/common-files/setup_toolchain_ndk_r17c.sh
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source $_SCRIPTDIR/common-files/termux_download.sh
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: ${TOOLCHAIN_ARCH:=aarch64}
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: ${_CACHE_DIR:=$_SCRIPTDIR/cache}
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: ${_TMP_DIR:=$_SCRIPTDIR/tmp}
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: ${_API_LEVEL:=21}
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: ${_MAKE_PROCESSES:=$(nproc)}
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: ${GCC_VERSION:=12.1.0}
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: ${GCC_SHA256:=e88a004a14697bbbaba311f38a938c716d9a652fd151aaaa4cf1b5b99b90e2de}
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export TOOLCHAIN_ARCH
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TERMUX_PKG_TMPDIR=$_TMP_DIR
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mkdir -p $_CACHE_DIR
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rm -rf $_TMP_DIR
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mkdir -p $_TMP_DIR
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_HOST_PLATFORM="${TOOLCHAIN_ARCH}-linux-android"
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_EXTRA_HOST_BUILD=""
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if [ "$TOOLCHAIN_ARCH" = "arm" ]; then
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_HOST_PLATFORM="${_HOST_PLATFORM}eabi"
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_EXTRA_HOST_BUILD="--with-arch=armv7-a --with-float=soft --with-fpu=vfp"
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elif [ "$TOOLCHAIN_ARCH" = "aarch64" ]; then
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_EXTRA_HOST_BUILD="--enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419"
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elif [ "$TOOLCHAIN_ARCH" = "i686" ]; then
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_EXTRA_HOST_BUILD="--with-arch=i686 --with-fpmath=sse "
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elif [ "$TOOLCHAIN_ARCH" = "x86_64" ]; then
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_EXTRA_HOST_BUILD="--with-arch=x86-64 --with-fpmath=sse"
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fi
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# Install dependencies
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sudo apt update
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sudo apt install -y build-essential curl
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sudo apt install -y libgmp-dev libmpfr-dev libmpc-dev zlib1g-dev libisl-dev libtinfo5 libncurses5
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pushd $_TMP_DIR
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# Download source
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SRC_URL=https://ftp.gnu.org/gnu/gcc/gcc-${GCC_VERSION}/gcc-${GCC_VERSION}.tar.gz
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SRC_FILE=$_CACHE_DIR/gcc-${GCC_VERSION}.tar.gz
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SRC_DIR=$_TMP_DIR/gcc-${GCC_VERSION}
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termux_download $SRC_URL $SRC_FILE $GCC_SHA256
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# Setup a standalone toolchain
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_setup_standalone_toolchain_ndk_r17c $_TMP_DIR/standalone-toolchain
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cp -R $_TMP_DIR/standalone-toolchain/sysroot/usr/include/$_HOST_PLATFORM/* $_TMP_DIR/standalone-toolchain/sysroot/usr/include/
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PATH="$_TMP_DIR/standalone-toolchain/bin:$PATH"
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# Extract source
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tar -xf $SRC_FILE -C $_TMP_DIR/
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pushd $_TMP_DIR
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PATCHES="$(find "$_SCRIPTDIR/patches/" -maxdepth 1 -type f -name *.patch | sort)"
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for f in $PATCHES; do
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echo "Applying patch: $(basename $f)"
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patch -d "$SRC_DIR/" -p1 < "$f";
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done
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popd
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# Build a custom toolchain
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mkdir -p $_TMP_DIR/newer-toolchain
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cp -R $_TMP_DIR/standalone-toolchain/sysroot $_TMP_DIR/newer-toolchain/
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mkdir -p newer-toolchain-build
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pushd newer-toolchain-build
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export CFLAGS="-D__ANDROID_API__=$_API_LEVEL"
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export CPPFLAGS="-D__ANDROID_API__=$_API_LEVEL"
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export CXXFLAGS="-D__ANDROID_API__=$_API_LEVEL"
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$SRC_DIR/configure \
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--host=x86_64-linux-gnu \
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--build=x86_64-linux-gnu \
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--target=$_HOST_PLATFORM \
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--disable-shared \
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--disable-nls \
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--enable-default-pie \
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--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' \
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--with-gnu-as --with-gnu-ld \
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--disable-libstdc__-v3 \
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--disable-tls \
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--disable-bootstrap \
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--enable-initfini-array \
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--enable-libatomic-ifuncs=no \
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--prefix=$_TMP_DIR/newer-toolchain \
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--with-gmp --with-mpfr --with-mpc --with-system-zlib \
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--enable-languages=c,c++,fortran \
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--enable-plugins --enable-libgomp \
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--enable-gnu-indirect-function \
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--disable-libcilkrts --disable-libsanitizer \
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--enable-gold --enable-threads \
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--enable-eh-frame-hdr-for-static \
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--enable-graphite=yes --with-isl \
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--disable-multilib \
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$_EXTRA_HOST_BUILD \
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--with-sysroot=$_TMP_DIR/newer-toolchain/sysroot \
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--with-gxx-include-dir=$_TMP_DIR/newer-toolchain/include/c++/$GCC_VERSION
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make -j $_MAKE_PROCESSES
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make -j $_MAKE_PROCESSES install
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popd # newer-toolchain-build
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# Make the archive
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mv newer-toolchain gcc-$GCC_VERSION-$TOOLCHAIN_ARCH
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tar -cjvf gcc-$GCC_VERSION-$TOOLCHAIN_ARCH.tar.bz2 gcc-$GCC_VERSION-$TOOLCHAIN_ARCH
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popd # $_TMP_DIR
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# Copy the archive
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mkdir -p build
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cp $_TMP_DIR/gcc-$GCC_VERSION-$TOOLCHAIN_ARCH.tar.bz2 ./build

‎common-files/setup_toolchain_ndk_r17c.sh‎

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_download_ndk_r17c() {
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if [ ! -f $_CACHE_DIR/.placeholder-android-ndk-r17c ]; then
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echo "Start downloading Android NDK toolchain (version r17c)..."
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mkdir -p $_CACHE_DIR/
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local _NDKARCHIVE_FILE=$_CACHE_DIR/android-ndk-r17c-linux-x86_64.zip
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local _NDK_URL=https://dl.google.com/android/repository/android-ndk-r17c-linux-x86_64.zip
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local _NDK_SHA256=3f541adbd0330a9205ba12697f6d04ec90752c53d6b622101a2a8a856e816589
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termux_download $_NDK_URL $_NDKARCHIVE_FILE $_NDK_SHA256
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unzip -d $_CACHE_DIR/ $_NDKARCHIVE_FILE > /dev/null 2>&1
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touch $_CACHE_DIR/.placeholder-android-ndk-r17c
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echo "Downloading completed."
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fi
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}
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_setup_standalone_toolchain_ndk_r17c() {
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_download_ndk_r17c
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local TOOLCHAIN_DIR="$1"
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rm -rf $TOOLCHAIN_DIR
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local _NDKARCH
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if [ "$TOOLCHAIN_ARCH" == "aarch64" ]; then
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_NDKARCH="arm64"
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elif [ "$TOOLCHAIN_ARCH" == "arm" ]; then
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_NDKARCH="arm"
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elif [ "$TOOLCHAIN_ARCH" == "x86_64" ]; then
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_NDKARCH="x86_64"
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elif [ "$TOOLCHAIN_ARCH" == "i686" ]; then
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_NDKARCH="x86"
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fi
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# Setup a standalone toolchain
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python $_CACHE_DIR/android-ndk-r17c/build/tools/make_standalone_toolchain.py \
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--arch $_NDKARCH --api $_API_LEVEL --install-dir $TOOLCHAIN_DIR
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# Modify sysroot
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pushd $TOOLCHAIN_DIR
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# See https://github.com/android/ndk/issues/215#issuecomment-524293090
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sed -i "s/include_next <stddef.h>/include <stddef.h>/" include/c++/4.9.x/cstddef
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sed -i "s/define __ANDROID_API__ __ANDROID_API_FUTURE__/define __ANDROID_API__ $_API_LEVEL/" \
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sysroot/usr/include/android/api-level.h
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popd
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}

‎common-files/termux_download.sh‎

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#!/usr/bin/bash
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##
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## Copyright 2020 Termux
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##
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## Licensed under the Apache License, Version 2.0 (the "License");
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## you may not use this file except in compliance with the License.
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## You may obtain a copy of the License at
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##
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## http://www.apache.org/licenses/LICENSE-2.0
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##
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## Unless required by applicable law or agreed to in writing, software
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## distributed under the License is distributed on an "AS IS" BASIS,
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## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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## See the License for the specific language governing permissions and
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## limitations under the License.
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##
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termux_download() {
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if [ $# != 3 ]; then
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termux_error_exit "termux_download(): Invalid arguments - expected \$URL \$DESTINATION \$CHECKSUM"
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fi
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local URL="$1"
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local DESTINATION="$2"
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local CHECKSUM="$3"
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if [ -f "$DESTINATION" ] && [ "$CHECKSUM" != "SKIP_CHECKSUM" ]; then
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# Keep existing file if checksum matches.
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local EXISTING_CHECKSUM
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EXISTING_CHECKSUM=$(sha256sum "$DESTINATION" | cut -f 1 -d ' ')
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if [ "$EXISTING_CHECKSUM" = "$CHECKSUM" ]; then return; fi
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fi
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local TMPFILE
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TMPFILE=$(mktemp "$TERMUX_PKG_TMPDIR/download.${TERMUX_PKG_NAME-unnamed}.XXXXXXXXX")
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echo "Downloading ${URL}"
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if curl --fail --retry 20 --retry-connrefused --retry-delay 30 --location --output "$TMPFILE" "$URL"; then
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local ACTUAL_CHECKSUM
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ACTUAL_CHECKSUM=$(sha256sum "$TMPFILE" | cut -f 1 -d ' ')
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if [ "$CHECKSUM" != "SKIP_CHECKSUM" ]; then
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if [ "$CHECKSUM" != "$ACTUAL_CHECKSUM" ]; then
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>&2 printf "Wrong checksum for %s:\nExpected: %s\nActual: %s\n" \
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"$URL" "$CHECKSUM" "$ACTUAL_CHECKSUM"
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return 1
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fi
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elif [ -z "$CHECKSUM" ]; then
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printf "WARNING: No checksum check for %s:\nActual: %s\n" \
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"$URL" "$ACTUAL_CHECKSUM"
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fi
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mv "$TMPFILE" "$DESTINATION"
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return 0
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fi
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echo "Failed to download $URL" >&2
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return 1
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}
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# Make script standalone executable as well as sourceable
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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termux_download "$@"
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fi

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