libgcj/1419: Add --enable-target-opt configure option.

[green@cygnus.com]

>Number:         1419
>Category:       libgcj
>Synopsis:       Add --enable-target-opt configure option.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    tromey
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Wed Dec 20 12:19:41 PST 2000
>Closed-Date:    
>Last-Modified:  
>Originator:     Anthony Green
>Release:        Trunk
>Organization:
>Environment:
All	
>Description:
libgcj has an --enable-target-optspace.
This forces -Os and whatever target specific size
optimizations exist.  See configure.host.
We should add an --enable-target-opt option.
This should force maximum target specific optimization.
We also need to add JAVAFLAGS support, much like CFLAGS.
This should always be overridden if either --enable-target-optspace
or --enable-target-opt are specified.

>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:

Formerly PR libgcj/41

>Unformatted: