diff --git a/OpenRa.FileFormats/Dune2ShpReader.cs b/OpenRa.FileFormats/Dune2ShpReader.cs
index f829aec345..1afb8d009c 100644
--- a/OpenRa.FileFormats/Dune2ShpReader.cs
+++ b/OpenRa.FileFormats/Dune2ShpReader.cs
@@ -1,4 +1,4 @@
-#region Copyright & License Information
+#region Copyright & License Information
 /*
  * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
  * This file is part of OpenRA.
@@ -59,7 +59,7 @@ namespace OpenRa.FileFormats
 				Flags == Dune2ImageFlags.L16_F80_F2_2 ||
 				Flags == Dune2ImageFlags.Ln_F80_F2)
 			{
-				int n = Flags == Dune2ImageFlags.Ln_F80_F2 ? reader.ReadByte() : 16;
+				int n = Flags == Dune2ImageFlags.Ln_F80_F2 ? reader.ReadByte() : (byte)16;
 				LookupTable = new byte[n];
 				for (int i = 0; i < n; i++)
 					LookupTable[i] = reader.ReadByte();
diff --git a/OpenRa.FileFormats/Makefile b/OpenRa.FileFormats/Makefile
new file mode 100644
index 0000000000..4d2e853fc5
--- /dev/null
+++ b/OpenRa.FileFormats/Makefile
@@ -0,0 +1,19 @@
+CSC     = gmcs
+CFLAGS  = -nologo -warn:4 -debug:+ -debug:full -optimize- -codepage:utf8 -unsafe
+DEFINE  = DEBUG;TRACE
+PROGRAM = OpenRa.FileFormats.dll
+LIBS    = System.dll \
+          System.Core.dll \
+          System.Drawing.dll \
+          System.Xml.dll
+TYPE    = library
+DIRS	= . \
+          Support \
+          Collections \
+          Properties
+
+refs := $(foreach ref, $(LIBS),-r:$(ref))
+files := $(foreach dir, $(DIRS),$(wildcard $(dir)/*.cs))
+
+$(PROGRAM) :
+	$(CSC) $(refs) "-out:$(PROGRAM)" $(CFLAGS) "-define:$(DEFINE)" -t:$(TYPE) $(files)