1 files changed, 12 insertions, 1 deletions

diff --git a/src/WixToolset.Core/CommandLine/CompileCommand.cs b/src/WixToolset.Core/CommandLine/CompileCommand.cs
index 58ba9d29..e7fcdd4d 100644
--- a/src/WixToolset.Core/CommandLine/CompileCommand.cs
+++ b/src/WixToolset.Core/CommandLine/CompileCommand.cs
@@ -4,6 +4,7 @@ namespace WixToolset.Core
 {
     using System;
     using System.Collections.Generic;
+    using System.Linq;
     using WixToolset.Data;
     using WixToolset.Extensibility;
     using WixToolset.Extensibility.Services;
@@ -22,6 +23,8 @@ namespace WixToolset.Core
 
         private IExtensionManager ExtensionManager { get; }
 
+        public IEnumerable<string> IncludeSearchPaths { get; }
+
         private IEnumerable<SourceFile> SourceFiles { get; }
 
         private IDictionary<string, string> PreprocessorVariables { get; }
@@ -30,8 +33,16 @@ namespace WixToolset.Core
         {
             foreach (var sourceFile in this.SourceFiles)
             {
+                var preprocessContext = this.ServiceProvider.GetService<IPreprocessContext>();
+                preprocessContext.Messaging = Messaging.Instance;
+                preprocessContext.Extensions = this.ExtensionManager.Create<IPreprocessorExtension>();
+                preprocessContext.Platform = Platform.X86; // TODO: set this correctly
+                preprocessContext.IncludeSearchPaths = this.IncludeSearchPaths?.ToList() ?? new List<string>();
+                preprocessContext.SourceFile = sourceFile.SourcePath;
+                preprocessContext.Variables = new Dictionary<string, string>(this.PreprocessorVariables);
+
                 var preprocessor = new Preprocessor();
-                var document = preprocessor.Process(sourceFile.SourcePath, this.PreprocessorVariables);
+                var document = preprocessor.Process(preprocessContext);
 
                 var compileContext = this.ServiceProvider.GetService<ICompileContext>();
                 compileContext.Messaging = Messaging.Instance;