Bugfix failing builds (#341)

* Fix interpreter for libnd4j tests and drop test script

* Remove mingw when specifying javacpp.platform, add new profile that triggers when javacpp.platform is windows-x86_64

* Update android 32 bit toolchain for x86

* Try triple instead of -target

* Change to -target

* Update 32 bit arm

* Change android bin path

* Update arm 32 bit build again

Co-authored-by: Adam Gibson <1144306+agibsonccc@users.noreply.github.com>

libnd4j/buildnativeoperations.sh

@@ -220,8 +220,9 @@ case "$OS" in
 
       setandroid_defaults
 
-
+      # Note here for android 32 bit prefix on the binutils is different
-      export ANDROID_BIN="$ANDROID_NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/$KERNEL/"
+      # See https://developer.android.com/ndk/guides/other_build_systems
+      export ANDROID_BIN="$ANDROID_NDK/toolchains/arm-linux-androideabi/prebuilt/$KERNEL/"
       export ANDROID_CPP="$ANDROID_NDK/sources/cxx-stl/llvm-libc++/"
       export ANDROID_CC="$ANDROID_NDK/toolchains/llvm/prebuilt/$KERNEL/bin/clang"
       export ANDROID_ROOT="$ANDROID_NDK/platforms/android-$ANDROID_VERSION/arch-arm/"

libnd4j/cmake/android-arm.cmake

@@ -1,7 +1,7 @@
 # CMake toolchain to build for Android 5.0 or newer. Sample usage:
 #
 set(CMAKE_SYSTEM_NAME Android)
-set(CMAKE_ANDROID_ARCH_ABI arm64-v8a)
+set(CMAKE_ANDROID_ARCH_ABI armeabi-v7a)
 set(CMAKE_ANDROID_NDK "$ENV{ANDROID_NDK}")
 set(CMAKE_ANDROID_STL_TYPE c++_shared)
 set(CMAKE_SYSTEM_VERSION  "$ENV{ANDROID_VERSION}")
@@ -18,5 +18,5 @@ endif (WIN32)
 
 
 
-add_definitions(-D__ANDROID_API__=$ENV{ANDROID_VERSION} -DANDROID -fPIC -ffunction-sections -funwind-tables -fstack-protector-strong -target aarch64-none-linux-android -march=armv8-a)
+add_definitions(-D__ANDROID_API__=$ENV{ANDROID_VERSION} -DANDROID -fPIC -ffunction-sections -funwind-tables -fstack-protector-strong -target  armv7a-linux-androideabi)
 

libnd4j/cmake/android-x86.cmake

@@ -18,5 +18,5 @@ endif (WIN32)
 
 
 
-add_definitions(-D__ANDROID_API__=$ENV{ANDROID_VERSION} -DANDROID -fPIC -ffunction-sections -funwind-tables -fstack-protector-strong -target x86-none-linux-android)
+add_definitions(-D__ANDROID_API__=$ENV{ANDROID_VERSION} -DANDROID -fPIC -ffunction-sections -funwind-tables -fstack-protector-strong -target i686-linux-android)
 

libnd4j/pom.xml

@@ -184,7 +184,7 @@
                             <skip>${libnd4j.test.skip}</skip>
                             <workingDirectory>${basedir}/tests_cpu</workingDirectory>
                             <buildCommand>
-                                <program>sh</program>
+                                <program>bash</program>
                                 <argument>run_tests.sh</argument>
                                 <argument>--chip</argument>
                                 <argument>${libnd4j.chip}</argument>

nd4j/compile-android.sh

@@ -1 +0,0 @@
-mvn clean install -Djavacpp.platform=android-arm64 -Dmaven.test.skip=true -Djavacpp.platform.compiler=$ANDROID_NDK/toolchains/llvm/prebuilt/windows-x86_64/bin/clang++ 

nd4j/nd4j-backends/nd4j-backend-impls/nd4j-native/pom.xml

@@ -293,6 +293,32 @@
               <os>
                   <family>windows</family>
               </os>
+                <property>
+                    <name>!javacpp.platform</name>
+                </property>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.bytedeco</groupId>
+                        <artifactId>javacpp</artifactId>
+                        <configuration>
+                            <properties>${javacpp.platform}-mingw</properties>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+        <profile>
+            <id>mingw-windows-platform</id>
+            <activation>
+                <os>
+                    <family>windows</family>
+                </os>
+                <property>
+                    <name>javacpp.platform</name>
+                    <value>windows-x86_64</value>
+                </property>
             </activation>
             <build>
                 <plugins>
@@ -306,7 +332,6 @@
                 </plugins>
             </build>
         </profile>
-
         <profile>
             <id>libnd4j-assembly</id>
             <activation>