Revert to the old Android plugin

Author: thunderbiscuit

bdk-android/plugins/src/main/kotlin/org/bitcoindevkit/plugins/UniFfiAndroidPlugin.kt

@@ -21,8 +21,7 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val buildAndroidAarch64Binary by tasks.register<Exec>("buildAndroidAarch64Binary") {
 
             workingDir("${projectDir}/../../bdk-ffi")
-            val cargoArgs: MutableList<String> =
-                mutableListOf("build", "--profile", "release-smaller", "--target", "aarch64-linux-android")
+            val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "aarch64-linux-android")
 
             executable("cargo")
             args(cargoArgs)
@@ -36,10 +35,9 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
 
             environment(
                 // add build toolchain to PATH
-                Pair("PATH",
-                    "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
-
-                Pair("CFLAGS", "-D__ANDROID_API__=21"),
+                Pair("PATH", "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
+                Pair("CFLAGS", "-D__ANDROID_MIN_SDK_VERSION__=21"),
+                Pair("AR", "llvm-ar"),
                 Pair("CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER", "aarch64-linux-android21-clang"),
                 Pair("CC", "aarch64-linux-android21-clang")
             )
@@ -53,8 +51,7 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val buildAndroidX86_64Binary by tasks.register<Exec>("buildAndroidX86_64Binary") {
 
             workingDir("${project.projectDir}/../../bdk-ffi")
-            val cargoArgs: MutableList<String> =
-                mutableListOf("build", "--profile", "release-smaller", "--target", "x86_64-linux-android")
+            val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "x86_64-linux-android")
 
             executable("cargo")
             args(cargoArgs)
@@ -68,10 +65,9 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
 
             environment(
                 // add build toolchain to PATH
-                Pair("PATH",
-                    "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
-
-                Pair("CFLAGS", "-D__ANDROID_API__=21"),
+                Pair("PATH", "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
+                Pair("CFLAGS", "-D__ANDROID_MIN_SDK_VERSION__=21"),
+                Pair("AR", "llvm-ar"),
                 Pair("CARGO_TARGET_X86_64_LINUX_ANDROID_LINKER", "x86_64-linux-android21-clang"),
                 Pair("CC", "x86_64-linux-android21-clang")
             )
@@ -85,8 +81,7 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val buildAndroidArmv7Binary by tasks.register<Exec>("buildAndroidArmv7Binary") {
 
             workingDir("${project.projectDir}/../../bdk-ffi")
-            val cargoArgs: MutableList<String> =
-                mutableListOf("build", "--profile", "release-smaller", "--target", "armv7-linux-androideabi")
+            val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "armv7-linux-androideabi")
 
             executable("cargo")
             args(cargoArgs)
@@ -100,12 +95,10 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
 
             environment(
                 // add build toolchain to PATH
-                Pair("PATH",
-                    "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
-
-                Pair("CFLAGS", "-D__ANDROID_API__=21"),
-                Pair("CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER",
-                    "armv7a-linux-androideabi21-clang"),
+                Pair("PATH", "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
+                Pair("CFLAGS", "-D__ANDROID_MIN_SDK_VERSION__=21"),
+                Pair("AR", "llvm-ar"),
+                Pair("CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER", "armv7a-linux-androideabi21-clang"),
                 Pair("CC", "armv7a-linux-androideabi21-clang")
             )