- Adapted bat file to new NDK and toolchain

- Able to build x86, x86_64, armv8, armv7 for android
- Automatically detects latest ndk on your system

scripts/android_crosscompile/.gitignore

@@ -0,0 +1 @@
+output

scripts/android_crosscompile/make_android.bat

@@ -1,28 +1,76 @@
 @echo off
 
-set ASSIMP_PATH=D:\projects\asset-importer-lib\assimp
-set CMAKE_PATH="C:\Program Files\CMake\bin\cmake.exe"
-set ANDROID_NDK_PATH=C:\Users\kimkulling\AppData\Local\Android\Sdk\ndk-bundle
-set ANDROID_CMAKE_PATH=contrib\android-cmake
+set ANDROID_PLATFORM=21
+set /p ANDROID_PLATFORM="Enter Android platform - Enter to use %ANDROID_PLATFORM%: "
 
-pushd %ASSIMP_PATH%
+set ANDROID_ABI=armeabi-v7a
+set /p ANDROID_ABI="Enter Android ABI ( armeabi-v7a, arm64-v8a , x86 , x86_64 ) - Enter to use %ANDROID_ABI% : "
 
-rmdir /s /q build
-mkdir build
-cd build
+set COMMON_CXX_FLAGS=-DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fexceptions -frtti -stdlib=libc++
+set COMMON_C_FLAGS=-DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fexceptions
 
-%CMAKE_PATH% .. ^
-  -G"MinGW Makefiles" ^
+if %ANDROID_ABI% == armeabi-v7a (
+  set CXX_FLAGS="%COMMON_CXX_FLAGS% -march=armv7-a -mthumb --target=armv7-none-linux-androideabi%ANDROID_PLATFORM%"
+  set C_FLAGS="%COMMON_C_FLAGS% -march=armv7-a -mthumb --target=armv7-none-linux-androideabi%ANDROID_PLATFORM%"
+)
+if %ANDROID_ABI% == arm64-v8a (
+  set CXX_FLAGS="%COMMON_CXX_FLAGS% -march=armv8-a --target=aarch64-none-linux-android%ANDROID_PLATFORM%"
+  set C_FLAGS="%COMMON_C_FLAGS% -march=armv8-a --target=aarch64-none-linux-android%ANDROID_PLATFORM%"
+)
+if %ANDROID_ABI% == x86 (
+  set CXX_FLAGS="%COMMON_CXX_FLAGS% --target=i686-none-linux-android%ANDROID_PLATFORM%"
+  set C_FLAGS="%COMMON_C_FLAGS% --target=i686-none-linux-android%ANDROID_PLATFORM%"
+)
+if %ANDROID_ABI% == x86_64 (
+  set CXX_FLAGS="%COMMON_CXX_FLAGS%"
+  set C_FLAGS="%COMMON_C_FLAGS%"
+)
+
+set CMAKE_PATH="%ProgramFiles%\CMake\bin\cmake.exe"
+if exist %CMAKE_PATH% (
+    echo Found cmake at %CMAKE_PATH%
+) else (
+  set /p CMAKE_PATH="Enter cmake.exe path: "
+)
+
+set ANDROID_NDK_PATH=""
+FOR /F "tokens=* USEBACKQ" %%F IN (`dir "%LocalAppData%\Android\Sdk\ndk" /b /o:n /a:d`) DO (
+  SET ANDROID_NDK_PATH="%LocalAppData%\Android\Sdk\ndk\%%F"
+)
+if exist %ANDROID_NDK_PATH% (
+  echo Found NDK at %ANDROID_NDK_PATH%
+) else (
+  set /p ANDROID_NDK_PATH="Enter ndk path: "
+)
+
+set BUILD_FOLDER=build
+rmdir /s /q %BUILD_FOLDER%
+mkdir %BUILD_FOLDER%
+
+%CMAKE_PATH% ^
+  -G"Unix Makefiles" ^
   -DCMAKE_BUILD_TYPE=Release ^
-  -DCMAKE_TOOLCHAIN_FILE=%ANDROID_CMAKE_PATH%\android.toolchain.cmake ^
+  -DCMAKE_TOOLCHAIN_FILE=%ANDROID_NDK_PATH%\build\cmake\android.toolchain.cmake ^
   -DCMAKE_MAKE_PROGRAM=%ANDROID_NDK_PATH%\prebuilt\windows-x86_64\bin\make.exe ^
   -DANDROID_NDK=%ANDROID_NDK_PATH% ^
-  -DANDROID_NATIVE_API_LEVEL=android-9 ^
+  -DOPERATING_SYSTEM="Android" ^
+  -DANDROID_PLATFORM=%ANDROID_PLATFORM% ^
+  -DANDROID_ABI=%ANDROID_ABI% ^
   -DASSIMP_ANDROID_JNIIOSYSTEM=ON ^
-  -DANDROID_ABI=arm64-v8a ^
-  -DASSIMP_BUILD_ZLIB=ON ^
-  -DASSIMP_BUILD_TESTS=OFF
+  -DASSIMP_BUILD_TESTS=OFF ^
+  -DCMAKE_CXX_FLAGS=%CXX_FLAGS% ^
+  -DMAKE_C_FLAGS=%C_FLAGS% ^
+  -S "..\.." ^
+  -B ".\%BUILD_FOLDER%\"
 
-%CMAKE_PATH% --build .
+%CMAKE_PATH% --build ".\%BUILD_FOLDER%\"" -- -j 4"
 
-popd
+set OUTPUT_FOLDER=.\output\
+mkdir %OUTPUT_FOLDER%
+mkdir "%OUTPUT_FOLDER%\lib\%ANDROID_ABI%"
+
+copy "%BUILD_FOLDER%\bin\libassimp.so" "%OUTPUT_FOLDER%\lib\%ANDROID_ABI%\"
+xcopy %BUILD_FOLDER%\include\assimp\ %OUTPUT_FOLDER%\include\assimp\ /y /s /e
+xcopy ..\..\include\assimp\ %OUTPUT_FOLDER%\include\assimp\ /y /s /e
+
+rmdir /s /q %BUILD_FOLDER%