I intended to use the CopyArtifact plugin and split a build task so that I just checkout on the master and then copy the sources over to the build machines. This works for all JNA supported environments, e.g. Windows, Solaris, and Linux on ix86/x86_64, but fails with the stack trace below (taken from one of the AIXes) on all other machines...

ERROR: Failed to copy artifacts from Local_WIR_Build with filter: **
hudson.util.IOException2: java.lang.UnsatisfiedLinkError: jnidispatch (/com/sun/jna/aix-ppc64/libjnidispatch.a) not found in resource path
at hudson.FilePath.copyRecursiveTo(FilePath.java:1474)
at hudson.FilePath.copyRecursiveTo(FilePath.java:1399)
at hudson.plugins.copyartifact.FilePathCopyMethod.init(FilePathCopyMethod.java:56)
at hudson.plugins.copyartifact.CopyArtifact.perform(CopyArtifact.java:190)
at hudson.plugins.copyartifact.CopyArtifact.perform(CopyArtifact.java:168)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:603)
at hudson.model.Build$RunnerImpl.build(Build.java:172)
at hudson.model.Build$RunnerImpl.doRun(Build.java:137)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:417)
at hudson.model.Run.run(Run.java:1325)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:139)
Caused by: java.util.concurrent.ExecutionException: java.lang.UnsatisfiedLinkError: jnidispatch (/com/sun/jna/aix-ppc64/libjnidispatch.a) not found in resource path
at hudson.remoting.Channel$2.adapt(Channel.java:662)
at hudson.remoting.Channel$2.adapt(Channel.java:657)
at hudson.remoting.FutureAdapter.get(FutureAdapter.java:55)
at hudson.FilePath.copyRecursiveTo(FilePath.java:1472)
... 13 more
Caused by: java.lang.UnsatisfiedLinkError: jnidispatch (/com/sun/jna/aix-ppc64/libjnidispatch.a) not found in resource path
at com.sun.jna.Native.loadNativeLibraryFromJar(Native.java:703)
at com.sun.jna.Native.loadNativeLibrary(Native.java:680)
at com.sun.jna.Native.<clinit>(Native.java:108)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
at hudson.util.jna.GNUCLibrary.<clinit>(GNUCLibrary.java:105)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
at hudson.FilePath.readFromTar(FilePath.java:1570)
at hudson.FilePath.access$100(FilePath.java:159)
at hudson.FilePath$32.invoke(FilePath.java:1463)
at hudson.FilePath$32.invoke(FilePath.java:1460)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1899)
at hudson.remoting.UserRequest.perform(UserRequest.java:114)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:270)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:452)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)
at java.util.concurrent.FutureTask.run(FutureTask.java:149)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:735)