quick script

android_build.sh

#!/bin/bash

#fail fast
set -e

SRC=$1
OUTPUT=$2

if [[ ! $SRC = /* ]]; then
    SRC="$PWD/${SRC#./}"
fi

if [[ ! $OUTPUT = /* ]]; then
    OUTPUT="$PWD/${OUTPUT#./}"
fi

echo -- $OUTPUT

TOOLCHAIN_PATH=$OUTPUT/toolchain/
ARCH=arm
TOOLCHAIN=arm-linux-androideabi-clang
HOST_TRIPLET=arm-linux-androideabi
#ARCH=x86
#TOOLCHAIN=x86-clang
#HOST_TRIPLET=x86-linux-android
PLATFORM_VERSION=android-19

WARNING_SUPRESSIONS="-Wno-unused-const-variable \
                     -Wno-unused-local-typedef \
                     -Wno-unused-function"

export PATH=$TOOLCHAIN_PATH/bin:$PATH
export SYSROOT=$TOOLCHAIN_PATH/sysroot
export CC=$TOOLCHAIN_PATH/bin/clang
export CXX=$TOOLCHAIN_PATH/bin/clang++

case "$ARCH" in
    arm)
        CFLAGS="$CFLAGS -march=armv7-a -mfloat-abi=softfp -mfpu=neon"
        CXXFLAGS="$CXXFLAGS -march=armv7-a -mfloat-abi=softfp -mfpu=neon"
        export LDFLAGS="-march=armv7-a -Wl,--fix-cortex-a8"
    ;;
    x86)
    # x86 flags
    ;;
esac

export CFLAGS="$CFLAGS $(echo $WARNING_SUPRESSIONS | xargs)"
export CXXFLAGS="$CXXFLAGS $(echo $WARNING_SUPRESSIONS | xargs)"

echo "CFLAGS = $CFLAGS"
echo "CXXFLAGS = $CXXFLAGS"
echo "LDFLAGS = $LDFLAGS"

echo "Creating standalone android toolchain in $TOOLCHAIN_PATH"

TOOLCHAIN_BUILD=$NDK_ROOT/build/tools/make-standalone-toolchain.sh
$TOOLCHAIN_BUILD --toolchain=$TOOLCHAIN \
                 --arch=$ARCH \
                 --platform=$PLATFORM_VERSION \
                 --install-dir=$TOOLCHAIN_PATH

cmake \
    -DCMAKE_TOOLCHAIN_FILE=$SRC/cmake/toolchains/android.toolchain.cmake \
    -DANDROID_STANDALONE_TOOLCHAIN=$TOOLCHAIN_PATH \
    -DANDROID_TOOLCHAIN_NAME=standalone-clang $SRC

cmake --build . --target install