zlib isn't even used and fix all android platforms

android/build.gradle

@@ -31,7 +31,8 @@ android {
 
     // Bumping the plugin ndkVersion requires all clients of this plugin to bump
     // the version in their app and to download a newer version of the NDK.
-    ndkVersion "23.1.7779620"
+//    ndkVersion "23.1.7779620"
+    ndkVersion = "21.1.6352462"
 
     // Invoke the shared CMake build with the Android Gradle Plugin.
     externalNativeBuild {
@@ -54,15 +55,14 @@ android {
     }
 
     defaultConfig {
-        minSdkVersion 16
+        minSdkVersion 21
         ndkVersion = "21.1.6352462"
 
         externalNativeBuild {
             cmake {
                 arguments "-DBUILD_FOR_SYSTEM_NAME=android", "-DANDROID_STL=c++_shared", "-DANDROID_TOOLCHAIN=clang -v"
                 cppFlags "-frtti -fexceptions -v -DANDROID -std=c++17"
-                abiFilters  'x86_64', 'arm64-v8a'
-//                abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+                abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
             }
         }
     }

example/android/app/build.gradle

@@ -48,7 +48,7 @@ android {
         applicationId "com.cypherstack.flutter_libsparkmobile_example"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
-        minSdkVersion flutter.minSdkVersion
+        minSdkVersion 21
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

scripts/android/build_all.sh

@@ -30,22 +30,10 @@ unzip "$ANDROID_NDK_ZIP" -d "$WORKDIR"
 
 
 # openssl
-OPENSSL_FILENAME="openssl-1.1.1k.tar.gz"
+OPENSSL_FILENAME="openssl-1.1.1q.tar.gz"
 OPENSSL_FILE_PATH="$WORKDIR/$OPENSSL_FILENAME"
-OPENSSL_SRC_DIR="$WORKDIR/openssl-1.1.1k"
-OPENSSL_SHA256="892a0875b9872acd04a9fde79b1f943075d5ea162415de3047c327df33fbaee5"
-ZLIB_DIR="$WORKDIR/zlib"
-ZLIB_TAG="v1.2.11"
-ZLIB_COMMIT_HASH="cacf7f1d4e3d44d871b605da3b647f07d718623f"
-
-
-if [ ! -d "$ZLIB_DIR" ] ; then
-  git clone -b $ZLIB_TAG --depth 1 https://github.com/madler/zlib "$ZLIB_DIR"
-fi
-cd "$ZLIB_DIR"
-git reset --hard $ZLIB_COMMIT_HASH
-CC=clang CXX=clang++ ./configure --static
-make
+OPENSSL_SRC_DIR="$WORKDIR/openssl-1.1.1q"
+OPENSSL_SHA256="d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca"
 
 if [ ! -e "$OPENSSL_FILE_PATH" ]; then
   curl https://www.openssl.org/source/$OPENSSL_FILENAME -o "$OPENSSL_FILE_PATH"
@@ -85,8 +73,6 @@ tar -xzf "$OPENSSL_FILE_PATH" -C "$WORKDIR"
 cd "$OPENSSL_SRC_DIR"
 ./Configure CC=${CLANG} CXX=${CXXLANG} ${X_ARCH} \
 	no-asm no-shared no-tests --static \
-	--with-zlib-include="${PREFIX}"/include \
-	--with-zlib-lib="${PREFIX}"/lib \
 	--prefix="${PREFIX}" \
 	--openssldir="${PREFIX}" \
 	-D__ANDROID_API__=$API