diff --git a/src/CalcManager/pch.h b/src/CalcManager/pch.h
index ffb15e23..551efa91 100644
--- a/src/CalcManager/pch.h
+++ b/src/CalcManager/pch.h
@@ -37,5 +37,6 @@
 
 #include "winerror_cross_platform.h"
 #include "sal_cross_platform.h"
+#include "preprocessor_cross_platform.h"
 
 #endif
diff --git a/src/CalcManager/preprocessor_cross_platform.h b/src/CalcManager/preprocessor_cross_platform.h
new file mode 100644
index 00000000..25d7400a
--- /dev/null
+++ b/src/CalcManager/preprocessor_cross_platform.h
@@ -0,0 +1,5 @@
+#pragma once
+
+// Empty macro definitions for Windows-specific preprocessor directives
+
+#define __pragma(x)