A debugger contributed to xtc that integrates Java with C.

### Prerequisites

You need Java 1.5, gdb, and the usual GNU tooling (in particular, gdb and make). We have tested Blink under Linux 2.6 with HotSpot.

### Environment variables

JAVA_DEV_ROOT | set this such that $JAVA_DEV_ROOT/xtc is the top-level xtc directory
PATH_SEP | ':' for MacOS or Linux, or ';' for Cygwin
CLASSPATH | $JAVA_DEV_ROOT/classes$PATH_SEP$JAVA_DEV_ROOT/bin/junit.jar$PATH_SEP$JAVA_DEV_ROOT/bin/antlr.jar
JAVA_HOME | set this such that $JAVA_HOME/bin/java is the Java virtual machine
CPATH | should include the directory that contains jni.h, which is most likely $JAVA_HOME/include
PATH | should include $JAVA_HOME/bin
OSTYPE | should be either cygwin, or have linux or darwin as a substring