message: change toolchain to clang
diff: @@ -22,8 +22,8 @@ android {
  }
  externalNativeBuild {
  cmake {
  - arguments '-DANDROID_TOOLCHAIN=gcc',
  - '-DANDROID_STL=gnustl_static'
  + arguments '-DANDROID_TOOLCHAIN=clang',
  + '-DANDROID_STL=c++_static'
  }
  }
  }
  