* Add builds for Android to zlib sample project (issue #5)

CHANGELOG.md

@@ -1,3 +1,5 @@
 
+ * Add builds for Android to zlib sample project ([issue #5](https://github.com/bytedeco/gradle-javacpp/issues/5))
+
 ### September 9, 2020 version 1.5.4
  * Initial release

README.md

@@ -56,7 +56,8 @@ dependencies {
 }
 
 tasks.withType(org.bytedeco.gradle.javacpp.BuildTask) {
-    // set here default values for all build tasks below, typically just includePath and linkPath
+    // set here default values for all build tasks below, typically just includePath and linkPath,
+    // but also properties to set the path to the NDK and its compiler in the case of Android
 }
 
 javacppBuildCommand {

samples/zlib/build.gradle

@@ -1,6 +1,6 @@
 plugins {
     id 'java-library'
-    id 'org.bytedeco.gradle-javacpp-build' version '1.5.4'
+    id 'org.bytedeco.gradle-javacpp-build' version '1.5.5-SNAPSHOT'
 }
 
 group = 'org.bytedeco'
@@ -19,6 +19,12 @@ dependencies {
 }
 
 tasks.withType(org.bytedeco.gradle.javacpp.BuildTask) {
+    if (javacppPlatform.startsWith("android")) {
+        properties = "$javacppPlatform-clang"
+        propertyKeysAndValues = [ 'platform.root' : System.getProperty('user.home') + '/Android/Sdk/ndk-bundle/',
+                                  'platform.compiler' : "$buildDir/$javacppPlatform/toolchain/bin/clang++".toString() ]
+        test.enabled = false
+    }
     includePath = ["$buildDir/$javacppPlatform/include"]
     linkPath = ["$buildDir/$javacppPlatform/lib"]
 }

samples/zlib/build.sh

@@ -15,6 +15,34 @@ tar --totals -xf "zlib-$ZLIB_VERSION.tar.gz"
 cd zlib-$ZLIB_VERSION
 
 case $PLATFORM in
+    android-arm)
+        $PLATFORM_ROOT/build/tools/make_standalone_toolchain.py --arch arm --api 21 --install-dir=../toolchain
+        export PATH=`pwd`/../toolchain/bin/:$PATH
+        CC="arm-linux-androideabi-clang -fPIC" ./configure --prefix=.. --static
+        make -j $MAKEJ
+        make install
+        ;;
+    android-arm64)
+        $PLATFORM_ROOT/build/tools/make_standalone_toolchain.py --arch arm64 --api 21 --install-dir=../toolchain
+        export PATH=`pwd`/../toolchain/bin/:$PATH
+        CC="aarch64-linux-android-clang -fPIC" ./configure --prefix=.. --static
+        make -j $MAKEJ
+        make install
+        ;;
+    android-x86)
+        $PLATFORM_ROOT/build/tools/make_standalone_toolchain.py --arch x86 --api 21 --install-dir=../toolchain
+        export PATH=`pwd`/../toolchain/bin/:$PATH
+        CC="i686-linux-android-clang -fPIC" ./configure --prefix=.. --static
+        make -j $MAKEJ
+        make install
+        ;;
+    android-x86_64)
+        $PLATFORM_ROOT/build/tools/make_standalone_toolchain.py --arch x86_64 --api 21 --install-dir=../toolchain
+        export PATH=`pwd`/../toolchain/bin/:$PATH
+        CC="x86_64-linux-android-clang -fPIC" ./configure --prefix=.. --static
+        make -j $MAKEJ
+        make install
+        ;;
     linux-x86)
         CC="gcc -m32 -fPIC" ./configure --prefix=.. --static
         make -j $MAKEJ

samples/zlib/settings.gradle

@@ -9,4 +9,4 @@ pluginManagement {
 
 rootProject.name = 'zlib'
 
-gradle.rootProject { ext.javacppVersion = '1.5.4' }
+gradle.rootProject { ext.javacppVersion = '1.5.5-SNAPSHOT' }