Linux MakeFile exception

[markfinal]

Found this on Linux (Parallels Ubuntu 14 VM) test run

* FAILURE *: Package 'Test9 in /home/mark/dev/BuildAMation/tests' with extra arguments '--C.bitdepth=32'
Command was: bam -o=build -b=MakeFile --config=debug --config=profile -j=0 -v=0 --clean --C.bitdepth=32
Executed in: /home/mark/dev/BuildAMation/tests/Test9
Messages:
BuildAMation (Bam) v1.0.2 (c) Mark Final, 2010-2016. Licensed under BSD 3-clause. See License.md.
Parts of this software are licensed under the Microsoft Limited Public License (MS-PL). See MS-PL.md.
Deleting build root '/home/mark/dev/BuildAMation/tests/Test9/build'
Compiling package assembly (C# compiler v4.0, targetting .NETFramework,Version=v4.5), because no previously compiled package assembly exists.
Creating modules
Analysing module dependencies
Apply settings to modules
Parsing strings
Running build

Build Failed
Errors:
ERROR: (Bam.Core.Exception) Error during threaded build
ERROR: (System.AggregateException) One or more errors occurred.
ERROR: (System.IndexOutOfRangeException) Index was outside the bounds of the array.
ERROR: 
  at (wrapper stelemref) System.Object:virt_stelemref_sealed_class (intptr,object)
  at System.Collections.Generic.List`1[T].Add (System.Collections.Generic.T item) <0x7f129cf442f0 + 0x0005e> in <filename unknown>:0 
  at Bam.Core.Array`1[T].AddToEnd (Bam.Core.T item) <0x41333720 + 0x00062> in <filename unknown>:0 
  at Bam.Core.Array`1[T].AddUnique (Bam.Core.T item) <0x41333690 + 0x0006f> in <filename unknown>:0 
  at C.MakeFileCompilation.C.ICompilationPolicy.Compile (C.ObjectFile sender, Bam.Core.ExecutionContext context, Bam.Core.TokenizedString objectFilePath, Bam.Core.Module source) <0x411ea2a0 + 0x004db> in <filename unknown>:0 
  at C.ObjectFile.ExecuteInternal (Bam.Core.ExecutionContext context) <0x411ea140 + 0x00060> in <filename unknown>:0 
  at Bam.Core.Module.Bam.Core.IModuleExecution.Execute (Bam.Core.ExecutionContext context) <0x411e9550 + 0x00172> in <filename unknown>:0 
  at Bam.Core.Executor+<Run>c__AnonStorey2.<>m__0 () <0x411e8300 + 0x00331> in <filename unknown>:0 
  at System.Threading.Tasks.Task.InnerInvoke () <0x7f129d09e960 + 0x0004f> in <filename unknown>:0 
  at System.Threading.Tasks.Task.Execute () <0x7f129d09e220 + 0x00055> in <filename unknown>:0