linking problems with jar files

["Prabhakar, Vijay (IT)" <Vijay dot Prabhakar at morganstanley dot com>]

I'm having some trouble linking using gcj v3.2.3-42.  Unfortunately, I
don't really have the option to upgrade to a more recent version right
now, but I'm willing to be that the solution would be the same -- I
think I'm not using the correct set of switches to the linker.

I have a couple of java source files which I have compiled to .class
files using the -C option.  I've taken those class files and made a JAR
file out of them.  When I try to link a program that needs those
classes, I'm having problems linking.  I cannot seem to get GCJ to
recognize the classes or find them in the JAR file.  I get errors of the
type:

: undefined reference to `Foo::printHelloWorld()' 

I've tried using -Ifoo.jar as well as --classpath=./foo.jar, but neither
one seems to work.  What's the correct switch to use when trying to link
with a JAR file?  I can't really compile everything to object files
because eventually some of those JAR files will come from external
sources.  Thanks!

-Vijay 
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