diff --git a/projects/Stacker/lib/Makefile b/projects/Stacker/lib/Makefile
new file mode 100644
index 00000000000..6973e5be662
--- /dev/null
+++ b/projects/Stacker/lib/Makefile
@@ -0,0 +1,20 @@
+##===- projects/sample/Makefile ----------------------------*- Makefile -*-===##
+#
+# This is a sample Makefile for a project that uses LLVM.
+#
+##===----------------------------------------------------------------------===##
+
+#
+# Indicates our relative path to the top of the project's root directory.
+#
+LEVEL = ../../..
+
+#
+# Directories that needs to be built.
+#
+DIRS = compiler runtime
+
+#
+# Include the Master Makefile that knows how to build all.
+#
+include $(LEVEL)/Makefile.common
diff --git a/projects/Stacker/lib/compiler/StackerCompiler.cpp b/projects/Stacker/lib/compiler/StackerCompiler.cpp
index 6ebcae9b365..4cd06461030 100644
--- a/projects/Stacker/lib/compiler/StackerCompiler.cpp
+++ b/projects/Stacker/lib/compiler/StackerCompiler.cpp
@@ -132,7 +132,7 @@ StackerCompiler::compile(
 	    /*type=*/ stack_type, 
 	    /*isConstant=*/ false, 
 	    /*Linkage=*/ GlobalValue::AppendingLinkage, 
-	    /*initializer=*/0, 
+	    /*initializer=*/Constant::getNullValue(stack_type), 
 	    /*name=*/ "_stack_",
 	    /*parent=*/ TheModule 
 	);
@@ -144,7 +144,7 @@ StackerCompiler::compile(
 	    /*type=*/Type::LongTy, 
 	    /*isConstant=*/false,
 	    /*Linkage=*/GlobalValue::LinkOnceLinkage, 
-	    /*initializer=*/0, 
+	    /*initializer=*/Constant::getNullValue(Type::LongTy), 
 	    /*name=*/"_index_",
 	    /*parent=*/TheModule
 	);