./eclipse -data /tmp/ws -nosplash -pprovider org.eclipse.cdt.core.index.export.ExternalExportProjectProvider -application org.eclipse.cdt.core.GeneratePDOM -target /tmp/test.pdom -source /path/to/source -id "" -include /path/to/include

!ENTRY org.eclipse.core.jobs 4 2 2013-08-13 08:19:42.642
!MESSAGE An internal error occurred during: "C/C++ Indexer".
!STACK 0
java.lang.NullPointerException
	at org.eclipse.core.internal.runtime.InternalPlatform.getOS(InternalPlatform.java:400)
	at org.eclipse.core.runtime.Platform.getOS(Platform.java:1151)
	at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isCaseInsensitiveFileSystem(ProjectIndexerInputAdapter.java:87)
	at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.<init>(ProjectIndexerInputAdapter.java:70)
	at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.<init>(ProjectIndexerInputAdapter.java:62)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.<init>(PDOMIndexerTask.java:55)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMFastIndexerTask.<init>(PDOMFastIndexerTask.java:25)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMFastIndexer.createTask(PDOMFastIndexer.java:32)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMRebuildTask.createDelegate(PDOMRebuildTask.java:114)
	at org.eclipse.cdt.internal.core.pdom.indexer.PDOMRebuildTask.run(PDOMRebuildTask.java:75)
	at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:137)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)