think it's an Eclipse IDE (ant) project ...
you'd need to import it to Android Studio (gradle), first.
managed to build the Android.mk with ndkBuild, after importing the project.
the build.gradle looks alike:
apply plugin: 'com.android.application'
android {
defaultConfig {
applicationId "org.jfedor.frozenbubble"
minSdkVersion 22
targetSdkVersion 26
compileSdkVersion 26
ndk {
moduleName "modplug-1.0"
}
}
externalNativeBuild {
ndkBuild {
path "src/main/cpp/Android.mk"
}
}
sourceSets {
main {
jni.srcDirs = ["src/main/cpp"]
}
}
buildTypes {
debug {
minifyEnabled false
}
release {
minifyEnabled false
}
}
}
that andmodplug_PlayerThread.h needs to be dropped into the libmodplug directory, where the other headers reside (the import does not copy it, because it's in a completely unexpected location). also renamed directory jni to cpp and assigned that path to the main sourceSet.