Installation for PPower4 sources

The sources can be used with Java 1.1.x or 1.2.x.
They need access to the pj-library, the gnu.getopt library and my
implementation of BufferedRandomFileInputStream.java
If you do not want to change these other libraries, you can put the
jar file from the binary distribution (pp4.jar) at the end of your
CLASSPATH.
Otherwise download also the other packages and put their top level
directories into the CLASSPATH

To compile the class under Unix (with GNU make!) or to create the api
documentation, adopt the following files to your environment:

project/site.mk:

- let JDKDir be the path to your JDK tree.
- it should not be necessary to add any additional ClassPath entries
  here.
- if you have different versions of javadoc, you may update the
  commands speficied in JavaDoc1 and JavaDoc2 to switch between them.
  We prefer the 1.2 style of documentation even for compilations with 1.1

project/project.mk:

- make the setting of DebugInfo a comment, if you do not want
  debugging help any more.
- update ProjectClassPath to refer to the ppower4 source tree first;
  then append directories of all other required libraries or the jar
  file pp4.jar from the binary distribution (make that the last entry).
- set JavaDocLinkURLs to a place, where to find the API installed docs
  for your Java version. If you omit that, the names of standard
  classes will not be active links in the generated API.
- the JavaVersion setting will only help in a multi version
  environment, as we run it currently.

Then run
	gmake world
to create everything (but not yet a jar file) or
	gmake
to just compile.

If you are not in a Unix environment, make sure that all the sources
in de.tu_darmstadt.sp.pp4 are compiled and refer to the resulting
class files.
