Build a android so!

[johnson3d]

I want to build an Android so file using the latest source code of PhysX 5. Through continuous consultation with GPT, I obtained the following script:

@echo off
setlocal

REM ==== user config ====
set NDK_PATH=D:\\Android\\AndroidNDK\\android-ndk-r23c
set PHYSX_PATH=F:\\OpenSource\\PhysXEngine\\physx
REM set BUILD_PATH=%PHYSX_PATH%\\build_android_arm64
set BUILD_PATH=F:\\OpenSource\\PhysXEngine\\build_android_arm64
set ABI=arm64-v8a
set API_LEVEL=21
set CMAKE_GENERATOR=Ninja

REM ==== output ====
echo [INFO] use NDK: %NDK_PATH%
echo [INFO] PhysX source root: %PHYSX_PATH%
echo [INFO] build dir: %BUILD_PATH%
echo [INFO] ABI: %ABI%, API Level: %API_LEVEL%
echo [INFO] generator: %CMAKE_GENERATOR%

REM ==== make dir ====
if not exist "%BUILD_PATH%" (
    mkdir "%BUILD_PATH%"
)

cd /d "%BUILD_PATH%"

REM ==== CMake config ====
cmake ^
  -G %CMAKE_GENERATOR% ^
  -DCMAKE_TOOLCHAIN_FILE=%NDK_PATH%\\build\\cmake\\android.toolchain.cmake ^
  -DANDROID_ABI=%ABI% ^
  -DANDROID_PLATFORM=android-%API_LEVEL% ^
  -DANDROID_STL=c++_shared ^
  -DPHYSX_BUILD_ANDROID=ON ^
  -DPX_BUILD_PHYSX=ON ^
  -DPX_BUILD_PVDRUNTIME=ON ^
  -DPX_GENERATE_STATIC_LIBRARIES=OFF ^
  -DCMAKE_BUILD_TYPE=Release ^
rem  -DPHYSX_ROOT_DIR=%PHYSX_PATH% ^
rem  -DPX_OUTPUT_LIB_DIR=%BUILD_PATH%\\lib ^
rem  -DPX_OUTPUT_BIN_DIR=%BUILD_PATH%\\bin ^
  %PHYSX_PATH%\\compiler\\public

if errorlevel 1 (
    echo [ERROR] CMake config failed
    exit /b 1
)

echo start compile....

REM ==== start compile ====
cmake --build . --config Release

if errorlevel 1 (
    echo [ERROR] compile failed
    exit /b 1
)

echo [INFO] compile succeeded
echo [INFO] out dir: %BUILD_PATH%
endlocal
pause

,but the build still fails—it seems like CMake is recursing. Can anyone help me?

[eschan145]

The latest PhysX from this repository does not support the android platform, if you want to use PhysX on platforms other than Windows and Linux you will need to use the o3de fork at https://github.com/o3de/PhysX.

[johnson3d]

Well, I also cloned it later. Why doesn’t the PhysX team maintain more common platforms?

[eschan145]

It's not used a lot for PhysX's intended use case plus it doesn't have a Nvidia GPU for GPU acceleration which is a central part of the PhysX SDK.

[eschan145]

Also I'd suggest not to use chatgpt on configuring specific build systems such as PhysX, you can spend two minutes looking at the documentation and finding out PhysX only supports windows and Linux.