ExternalNativeBuildOptions
@Incubating interface ExternalNativeBuildOptions
DSL object for per-variant CMake and ndk-build configurations, such as toolchain arguments and compiler flags.
android {
// Similar to other properties in the defaultConfig block, you can override
// these properties for each product flavor you configure.
defaultConfig {
// This block is different from the one you use to link Gradle
// to your CMake or ndk-build script.
externalNativeBuild {
// For ndk-build, instead use the ndkBuild block.
cmake {
// Passes optional arguments to CMake.
arguments "-DANDROID_ARM_NEON=TRUE", "-DANDROID_TOOLCHAIN=clang"
// Sets a flag to enable format macro constants for the C compiler.
cFlags "-D__STDC_FORMAT_MACROS"
// Sets optional flags for the C++ compiler.
cppFlags "-fexceptions", "-frtti"
// Specifies the library and executable targets from your CMake project
// that Gradle should build.
targets "libexample-one", "my-executible-demo"
}
}
}
}
To enable external native builds and set the path to your CMake or ndk-build script, use android.externalNativeBuild.
Summary
| Public functions | |
|---|---|
| Unit | cmake(action: @ExtensionFunctionType ExternalNativeCmakeOptions.() -> Unit)Encapsulates per-variant CMake configurations, such as compiler flags and toolchain arguments. | 
| Unit | ndkBuild(action: @ExtensionFunctionType ExternalNativeNdkBuildOptions.() -> Unit)Encapsulates per-variant ndk-build configurations, such as compiler flags and toolchain arguments. | 
| Public properties | |
|---|---|
| ExternalNativeCmakeOptions | Encapsulates per-variant CMake configurations, such as compiler flags and toolchain arguments. | 
| MutableMap<String, Any> | Additional per-variant experimental properties for C and C++. | 
| ExternalNativeNdkBuildOptions | Encapsulates per-variant ndk-build configurations, such as compiler flags and toolchain arguments. | 
Public functions
cmake
fun cmake(action: @ExtensionFunctionType ExternalNativeCmakeOptions.() -> Unit): Unit
Encapsulates per-variant CMake configurations, such as compiler flags and toolchain arguments.
To enable external native builds and set the path to your CMakeLists.txt script, use android.externalNativeBuild.cmake.path.
ndkBuild
fun ndkBuild(action: @ExtensionFunctionType ExternalNativeNdkBuildOptions.() -> Unit): Unit
Encapsulates per-variant ndk-build configurations, such as compiler flags and toolchain arguments.
To enable external native builds and set the path to your Android.mk script, use android.externalNativeBuild.ndkBuild.path.
Public properties
cmake
val cmake: ExternalNativeCmakeOptions
Encapsulates per-variant CMake configurations, such as compiler flags and toolchain arguments.
To enable external native builds and set the path to your CMakeLists.txt script, use android.externalNativeBuild.cmake.path.
experimentalProperties
val experimentalProperties: MutableMap<String, Any>
Additional per-variant experimental properties for C and C++.
ndkBuild
val ndkBuild: ExternalNativeNdkBuildOptions
Encapsulates per-variant ndk-build configurations, such as compiler flags and toolchain arguments.
To enable external native builds and set the path to your Android.mk script, use android.externalNativeBuild.ndkBuild.path.
