5.3 Makefile

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LD_LIBRARY_PATH=.

all: Hello.h libHello.so Hello.class
        java Hello

Hello.class: Hello.java
        javac Hello.java

Hello.h: Hello.class
        javah Hello

libHello.so: Hello.h Hello.c
        gcc -shared Hello.c -I$(JAVA_HOME)/include \
            -I$(JAVA_HOME)/include/linux \
            -o libHello.so
clean:
        rm -f Hello.h libHello.so Hello.class *~