+AC_ARG_WITH(java-version, AS_HELP_STRING([--with-java-version=7],
+ [Set java language compatibility version (default is 7)]),
+ [JAVA_VERSION=$withval], [JAVA_VERSION=7])
+
+JAVAC="$JVM"/bin/javac
+JAVA="$JVM"/bin/java
+JVM_INCLUDE="$JVM"/include
+JAVAC_VERSION_FLAGS="-target 1.$JAVA_VERSION -source 1.$JAVA_VERSION"
+
+AC_SUBST(JAVAC)
+AC_SUBST(JAVA)
+AC_SUBST(JVM)