build failure

[James Falknor]

To all concerned,
I keep getting this Error while building OpenJDK.

Error: JAVA_HOME is not defined correctly.
   We cannot execute /NO_BOOTDIR/bin/java

Further error messages:
BUILD FAILED
/Users/jamesfalknor/bsd-port/langtools/make/build.xml:452: The following 
error occurred while executing this line:
/Users/jamesfalknor/bsd-port/langtools/make/build.xml:795: Compile 
failed; see the compiler error output for details.

I am using SoyLatte's OPenJDK 7 for Leopard PPC as the bootstrap.

What am I doing wrong?

Thank you,
James Falknor