some sdk updates on external libs

app/build.gradle

@@ -5,7 +5,10 @@ android {
     buildToolsVersion '28.0.2'
     defaultConfig {
         applicationId 'com.wownero.wownerujo'
-        minSdkVersion 22
+
+        // No more security updates for Android 5 (sdk 21 and 22), so not supported.
+        // https://source.android.com/security/bulletin/2018-03-01
+        minSdkVersion 23
         targetSdkVersion 28
         versionCode 1080
         versionName '1.6.4.0'

script/build-external-libs/android-openssl/setenv-android-mod.sh

@@ -15,7 +15,7 @@
 # try to pick it up with the value of _ANDROID_NDK_ROOT below. If
 # ANDROID_NDK_ROOT is set, then the value is ignored.
 # _ANDROID_NDK="android-ndk-r8e"
-_ANDROID_NDK="android-ndk-r10d"
+_ANDROID_NDK="android-ndk-r17b"
 # _ANDROID_NDK="android-ndk-r10"
 
 # Set _ANDROID_EABI to the EABI you want to use. You can find the
@@ -37,7 +37,8 @@ _ANDROID_NDK="android-ndk-r10d"
 # This value is always used.
 # _ANDROID_API="android-14"
 #_ANDROID_API="android-18"
-_ANDROID_API="android-21"
+# _ANDROID_API="android-21"
+_ANDROID_API="android-23"
 
 #####################################################################
 

script/build-external-libs/build-boost.sh

@@ -17,23 +17,27 @@ args="--build-type=minimal link=static runtime-link=static --with-chrono \
 --with-date_time --with-filesystem --with-program_options --with-regex \
 --with-serialization --with-system --with-thread \
 --includedir=$build_root/build/boost/include \
---toolset=clang threading=multi threadapi=pthread target-os=android \
+--toolset=clang-android threading=multi threadapi=pthread target-os=android"
-install"
 
 echo $args
 
 PATH=$build_root/tool/arm/arm-linux-androideabi/bin:$build_root/tool/arm/bin:$PATH \
-    ./b2 --build-dir=android-arm --prefix=$build_root/build/boost/arm $args
+    ./b2 --build-dir=android-arm --prefix=$build_root/build/boost/arm $args \
+    --arch=armeabi-v7a \
+    install
 ln -sf ../include $build_root/build/boost/arm
 
 PATH=$build_root/tool/arm64/aarch64-linux-androideabi/bin:$build_root/tool/arm64/bin:$PATH \
-    ./b2 --build-dir=android-arm64 --prefix=$build_root/build/boost/arm64 $args
+    ./b2 --build-dir=android-arm64 --prefix=$build_root/build/boost/arm64 $args \
+    install
 ln -sf ../include $build_root/build/boost/arm64
 
 PATH=$build_root/tool/x86/i686-linux-android/bin:$build_root/tool/x86/bin:$PATH \
-    ./b2 --build-dir=android-x86--prefix=$build_root/build/boost/x86 $args
+    ./b2 --build-dir=android-x86--prefix=$build_root/build/boost/x86 $args \
+    install
 ln -sf ../include $build_root/build/boost/x86
 
 PATH=$build_root/tool/x86_64/x86_64-linux-android/bin:$build_root/tool/x86_64/bin:$PATH \
-    ./b2 --build-dir=android-x86_64 --prefix=$build_root/build/boost/x86_64 $args
+    ./b2 --build-dir=android-x86_64 --prefix=$build_root/build/boost/x86_64 $args \
+    install
 ln -sf ../include $build_root/build/boost/x86_64

script/build-external-libs/prep-toolchain.sh

@@ -5,25 +5,16 @@ set -e
 source script/build-external-libs/env.sh
 
 build_root=$EXTERNAL_LIBS_BUILD_ROOT
-
 PATH=$ANDROID_NDK_ROOT/build/tools/:$PATH
 
-if [ ! -d "$build_root/tool/arm" ]; then
+args="--api 23 --stl=libc++"
-    echo "installing arm"
+archs=(arm arm64 x86 x86_64)
-    make_standalone_toolchain.py --api 21 --stl=libc++ --arch arm --install-dir $build_root/tool/arm
-fi
 
-if [ ! -d "$build_root/tool/arm64" ]; then
+for arch in ${archs[@]}; do
-    echo "installing arm64"
-    make_standalone_toolchain.py --api 21 --stl=libc++ --arch arm64 --install-dir $build_root/tool/arm64
-fi
 
-if [ ! -d "$build_root/tool/x86" ]; then
+    if [ ! -d "$build_root/tool/$arch" ]; then
-    echo "installing x86"
+        echo "installing $arch"
-    make_standalone_toolchain.py --api 21 --stl=libc++ --arch x86 --install-dir $build_root/tool/x86
+        make_standalone_toolchain.py $args --arch $arch --install-dir $build_root/tool/$arch
-fi
+    fi
 
-if [ ! -d "$build_root/tool/x86_64" ]; then
+done
-    echo "installing x86_64"
-    make_standalone_toolchain.py --api 21 --stl=libc++ --arch x86_64 --install-dir $build_root/tool/x86_64
-fi