java and Ubuntu 12

[Ben Abbott]

On Ubuntu 12.10 with OpenJDK Java 7 installed, I tried ....

        export JAVA_HOME "/usr/lib/jvm/java-7-openjdk-i386/bin"

The resulting config.log includes ...

        | #define JAVA_HOME "/usr/lib/jvm/java-7-openjdk-i386/bin"

However, my build fails with ...

        dldfcn/__java__.h:25:17: fatal error: jni.h: No such file or directory
        compilation terminated.

The find below did not locate jni.h

        find /usr/lib/jvm -name jni.h

I'm clueless as to what I might try next.

Ben