How Can I Exclude Files from LOCAL_SRC_FILES in the NDK Gradle DSL?

Bypassing LOCAL_SRC_FILES in NDK DSL With Exclusion Patterns

Question:

Can LOCAL_SRC_FILES be defined within an NDK DSL block in Gradle?

Original Answer (Deprecated):

Currently, this feature is not supported by the Gradle plugin. Consider using the traditional Android.mk file.

Updated Answer:

With the release of Gradle plugin 0.4.0, this is now possible using exclusion patterns.

android.sources {
    main {
        jni.source {
            srcDirs = ["~/srcs/jni"]
            exclude "**/win.cpp"
        }
    }
}

Alternative Solution with Static Library:

To exclude files from NDK builds without using LOCAL_SRC_FILES, a different approach can be taken.

1. Create a static library containing the excluded files.
2. Modify build.gradle to depend on the static library:

model {
    android.ndk {
        moduleName = "hello-jni"
        abiFilters += "$appAbi".toString()
        ldFlags += "$staticLib".toString()
        ldLibs += "log"
        cppFlags += "-std=c++11"
    }
}

3. Define the static library in Android.mk:

LOCAL_MODULE    := staticLib
LOCAL_SRC_FILES := HelloJni.cpp

LOCAL_CPPFLAGS += -std=c++11

include $(BUILD_STATIC_LIBRARY)

This approach effectively excludes the specified files from regular NDK builds and ensures the necessary symbols are available for debugging.

Note: Remember to trigger a "Build/Clean" after modifying the exclusion settings.

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