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#!/bin/bash
TOOLS_ROOT=`pwd`
#
# Warning !!! Android Build !!!
#
# Default to API 21 for it is the minimum requirement for 64 bit archs.
# IF you need to build for min api level 16, you need to modify it to 14 and will not build for 64 bit archs.
# api level 16 build is better because api level 21 and higher may have problem like
#
# https://github.com/openssl/openssl/issues/988
# http://stackoverflow.com/questions/37122126/whats-the-exact-significance-of-android-ndk-platform-version-compared-to-api-le
#
# So if you not need 64 bit arch api level 16 is better
#
# But but but cURL could not build by android-20 and earlier :-(
# So you can build openssl with android-16 then build cURL with android-21
#
ANDROID_API=${ANDROID_API:-26}
ARCHS=("android" "android64-aarch64" "android-armeabi" "android-x86" "android64")
ABIS=("armeabi" "arm64-v8a" "armeabi-v7a" "x86" "x86_64")
# ANDROID_API=${ANDROID_API:-21}
# ARCHS=("android" "android-armeabi" "android64-aarch64" "android-x86" "android64" "android-mips" "android-mips64")
# ABIS=("armeabi" "armeabi-v7a" "arm64-v8a" "x86" "x86_64" "mips" "mips64")
#NDK=${ANDROID_NDK}
configure() {
ARCH=$1; OUT=$2; CLANG=${3:-""};
TOOLCHAIN_ROOT=${TOOLCHAIN} #${TOOLS_ROOT}/${OUT}-android-toolchain
if [ "$ARCH" == "android" ]; then
export ARCH_FLAGS="-mthumb"
export ARCH_LINK=""
export TOOL="arm-linux-androideabi"
NDK_FLAGS="--arch=arm"
elif [ "$ARCH" == "android-armeabi" ]; then
export ARCH_FLAGS="-march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -mfpu=neon"
export ARCH_LINK="-march=armv7-a -Wl,--fix-cortex-a8"
export TOOL="arm-linux-androideabi"
NDK_FLAGS="--arch=arm"
elif [ "$ARCH" == "android64-aarch64" ]; then
export ARCH_FLAGS=""
export ARCH_LINK=""
export TOOL="aarch64-linux-android"
NDK_FLAGS="--arch=arm64"
elif [ "$ARCH" == "android-x86" ]; then
export ARCH_FLAGS="-march=i686 -mtune=intel -msse3 -mfpmath=sse -m32"
export ARCH_LINK=""
export TOOL="i686-linux-android"
NDK_FLAGS="--arch=x86"
elif [ "$ARCH" == "android64" ]; then
export ARCH_FLAGS="-march=x86-64 -msse4.2 -mpopcnt -m64 -mtune=intel"
export ARCH_LINK=""
export TOOL="x86_64-linux-android"
NDK_FLAGS="--arch=x86_64"
elif [ "$ARCH" == "android-mips" ]; then
export ARCH_FLAGS=""
export ARCH_LINK=""
export TOOL="mipsel-linux-android"
NDK_FLAGS="--arch=mips"
elif [ "$ARCH" == "android-mips64" ]; then
export ARCH="linux64-mips64"
export ARCH_FLAGS=""
export ARCH_LINK=""
export TOOL="mips64el-linux-android"
NDK_FLAGS="--arch=mips64"
fi;
[ -d ${TOOLCHAIN_ROOT} ] || python $NDK/build/tools/make_standalone_toolchain.py \
--api ${ANDROID_API} \
--stl libc++ \
--install-dir=${TOOLCHAIN_ROOT} \
$NDK_FLAGS
export TOOLCHAIN_PATH=${TOOLCHAIN_ROOT}/bin
export NDK_TOOLCHAIN_BASENAME=${TOOLCHAIN_PATH}/${TOOL}
export SYSROOT=${TOOLCHAIN_ROOT}/sysroot
export CROSS_SYSROOT=$SYSROOT
#if [ -z "${CLANG}" ]; then
# export CC=${NDK_TOOLCHAIN_BASENAME}-gcc
# export CXX=${NDK_TOOLCHAIN_BASENAME}-g++
#else
export CC=${NDK_TOOLCHAIN_BASENAME}-clang
export CXX=${NDK_TOOLCHAIN_BASENAME}-clang++
#fi;
export LINK=${CXX}
export LD=${NDK_TOOLCHAIN_BASENAME}-ld
export AR=${NDK_TOOLCHAIN_BASENAME}-ar
export RANLIB=${NDK_TOOLCHAIN_BASENAME}-ranlib
export STRIP=${NDK_TOOLCHAIN_BASENAME}-strip
export CPPFLAGS=${CPPFLAGS:-""}
export LIBS=${LIBS:-""}
export CFLAGS="${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64"
export CXXFLAGS="${CFLAGS} -std=c++11 -frtti -fexceptions"
export LDFLAGS="${ARCH_LINK}"
echo "**********************************************"
echo "use ANDROID_API=${ANDROID_API}"
echo "use NDK=${NDK}"
echo "export ARCH=${ARCH}"
echo "export NDK_TOOLCHAIN_BASENAME=${NDK_TOOLCHAIN_BASENAME}"
echo "export SYSROOT=${SYSROOT}"
echo "export CC=${CC}"
echo "export CXX=${CXX}"
echo "export LINK=${LINK}"
echo "export LD=${LD}"
echo "export AR=${AR}"
echo "export RANLIB=${RANLIB}"
echo "export STRIP=${STRIP}"
echo "export CPPFLAGS=${CPPFLAGS}"
echo "export CFLAGS=${CFLAGS}"
echo "export CXXFLAGS=${CXXFLAGS}"
echo "export LDFLAGS=${LDFLAGS}"
echo "export LIBS=${LIBS}"
echo "**********************************************"
}
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