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[jvm-packages] Mentioned CMake in the docs (#2529)

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Sergei Lebedev 2017-07-24 06:57:31 +02:00 committed by Nan Zhu
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doc/jvm/index.md
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@ -7,7 +7,7 @@ You have find XGBoost JVM Package!
Installation
------------
Currently, XGBoost4J only support installation from source. Building XGBoost4J using Maven requires Maven 3 or newer and Java 7+.
Currently, XGBoost4J only support installation from source. Building XGBoost4J using Maven requires Maven 3 or newer, Java 7+ and CMake 3.2+ for compiling the JNI bindings.
Before you install XGBoost4J, you need to define environment variable `JAVA_HOME` as your JDK directory to ensure that your compiler can find `jni.h` correctly, since XGBoost4J relies on JNI to implement the interaction between the JVM and native libraries.