Add preprocessor variables with WiX version info.

$(sys.WIXMAJORVERSION)
$(sys.WIXVERSION)

1 files changed, 6 insertions, 0 deletions

diff --git a/src/WixToolset.Core/ExtensibilityServices/PreprocessHelper.cs b/src/WixToolset.Core/ExtensibilityServices/PreprocessHelper.cs
index dfee0046..60726a02 100644
--- a/src/WixToolset.Core/ExtensibilityServices/PreprocessHelper.cs
+++ b/src/WixToolset.Core/ExtensibilityServices/PreprocessHelper.cs
@@ -248,6 +248,12 @@ namespace WixToolset.Core.ExtensibilityServices
                                     throw new ArgumentException("Unknown platform enumeration '{0}' encountered.", context.Platform.ToString());
                             }
 
+                        case "WIXMAJORVERSION":
+                            return ThisAssembly.AssemblyFileVersion.Split('.')[0];
+
+                        case "WIXVERSION":
+                            return ThisAssembly.AssemblyFileVersion;
+
                         default:
                             return null;
                     }