Configuration class and --enable-native-sync

[Steven Augart]

I would like to be able to figure out whether Classpath was compiled 
with --enable-portable-native-sync or not.  There have been times (and 
will be again soon) when Jikes RVM has required this option in order 
to run some kinds of graphical apps properly.

We currently usually automatically download and build Classpath for 
the user.  The biggest reason for this (so I'm told) is that, in the 
past, some users had run into problems because they hadn't configured 
Classpath properly.

It would be good for the VM to be able to confirm that an 
already-build Classpath installation was configured with the 
appropriate options.

I was thinking that the easiest way to do this would be to add a 
boolean variable to the Configuration class.

Besides --enable-portable-native-sync, the other config flags whose 
values I'd want to check are:
        --enable-jni
        --enable-load-library
        
and possibly

        --enable-gtk-peer

Are there any thoughts on the best way to do this?


--
Steven Augart

Jikes RVM, a free, open source, Virtual Machine:
http://oss.software.ibm.com/jikesrvm