how to make jni.h be found?

Question

In Ubuntu 12.04, I have jdk7 from sun/oracle installed. When locate jni.h, it prints multiple locations

/usr/lib/jvm/java-6-openjdk-amd64/inclu         


        

Answer 1

Above answers give you a hardcoded path solution. This is bad on so many levels (java version change, OS change, etc).

Cleaner solution is to add:

JAVA_HOME = $(shell dirname $$(readlink -f $$(which java))|sed 's^jre/bin^^')

near the top of your makefile, then add:

-I$(JAVA_HOME)/include

To your include flags.

I am posting this because I ran into the same problem and spent too much time googling for wrong answers (I am building an app on multiple platforms so the build environment needs to be transportable).