eclipse CDT UnsatisfiedLinkError: no spawner in java.library.path

[Gary Aitken]

Anyone using eclipse CDT?
When I start to compile something, I get the following error in the shell from
which eclipse was started:

java.lang.UnsatisfiedLinkError: no spawner in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1681)
at java.lang.Runtime.loadLibrary0(Runtime.java:840)
at java.lang.System.loadLibrary(System.java:1047)
at org.eclipse.cdt.utils.spawner.ProcessFactory.<init>(ProcessFactory.java:39)
at org.eclipse.cdt.utils.spawner.ProcessFactory.getFactory(ProcessFactory.java:51)
at org.eclipse.cdt.core.CommandLauncher.execute(CommandLauncher.java:151)
at org.eclipse.cdt.managedbuilder.internal.buildmodel.CommandBuilder.build(CommandBuilder.java:165)
...
<snip>

The last class (ProcessFactory) is in
  /usr/local/lib/eclipse/plugins/org.eclipse.cdt.core_5.1.2.201002161416.jar

Anyone know what the missing piece / magic is?

(The compile *seems* to work, reporting errors, responding to corrections, etc.,
but I'm pointing at a port and it's not working yet)

9.1 RELEASE, ports updated a day or two ago.