[cdt-dev] Extension point for contributing command line args?

[Alex Blewitt <alex.blewitt@xxxxxxxxx>]

In Objectiveclipse, I've set up a tool that presents a -framework  
argument, which works well. But this is only available on Mac OS X  
platforms.

http://code.google.com/p/objectiveclipse/source/browse/trunk/org.eclipse.cdt.objc.core/plugin.xml

                <tool id="cdt.managedbuild.tool.macosx.objc.linker"  
name="%objc.linker.name"
                         
superClass="cdt.managedbuild.tool.macosx.c.linker">
                        <optionCategory  
owner="cdt.managedbuild.tool.macosx.objc.linker"
                                name="%objc.frameworks.name"  
id="cdt.managedbuild.tool.macosx.objc.linker.frameworks">
                        </optionCategory>
                        <option name="%objc.frameworks.name"
                                 
category="cdt.managedbuild.tool.macosx.objc.linker.frameworks"
                                command="-framework ${VALUE}"  
id="cdt.managedbuild.tool.macosx.objc.linker.framework"
                                valueType="stringList">
                                <listOptionValue value="Foundation" />
                        </option>
                </tool>

What I'd like to do instead is have a concept of a project-level  
variable 'frameworks', and then provide a way of mapping that into  
command line extensions. This will allow the Mac toolchain to add - 
framework Foo, but when running on Linux, supply a command line of  
(say) -l OpenGL -L /System/Library/Frameworks/OpenGL.framework.

What is the best way of integrating this into the way that CDT stores  
data? I have a suspicion that I could add an entry into  
ICConfigurationDescription and use that as the store for this list.  
But then, how to translate that into entries for the command line is  
something I'm not too sure about.

Alex