diff --git a/glslang/MachineIndependent/linkValidate.cpp b/glslang/MachineIndependent/linkValidate.cpp
index 24511ad2..2cd559d6 100644
--- a/glslang/MachineIndependent/linkValidate.cpp
+++ b/glslang/MachineIndependent/linkValidate.cpp
@@ -93,6 +93,7 @@ void TIntermediate::merge(TInfoSink& infoSink, TIntermediate& unit)
     mergeCallGraphs(infoSink, unit);
     mergeModes(infoSink, unit);
     mergeTrees(infoSink, unit);
+    mergeSources(infoSink, unit); // @MEWIN 2023-02-22 - Added function to merge source files when linking shaders.
 #endif
 }
 
@@ -378,6 +379,37 @@ void TIntermediate::mergeTrees(TInfoSink& infoSink, TIntermediate& unit)
     ioAccessed.insert(unit.ioAccessed.begin(), unit.ioAccessed.end());
 }
 
+// BEGIN @MEWIN - 2023-02-22 - Added function to merge source files when linking shaders.
+void TIntermediate::mergeSources(TInfoSink& infoSink, TIntermediate& unit)
+{
+    auto addSource = [&](const char* name, const char* text, size_t len)
+    {
+        if (sourceFile == name) {
+            return;
+        }
+        auto it = includeText.find(name);
+        if (it != includeText.end()) {
+            return;
+        }
+
+        if (sourceText.empty())
+        {
+            setSourceFile(name);
+            addSourceText(text, len);
+        }
+        else {
+            addIncludeText(name, text, len);
+        }
+    };
+    if (!unit.getSourceFile().empty()) {
+        addSource(unit.getSourceFile().c_str(), unit.getSourceText().c_str(), unit.getSourceText().length());
+    }
+
+    for (const auto& [name, text] : unit.includeText) {
+        addSource(name.c_str(), text.c_str(), text.length());
+    }
+}
+// END @MEWIN
 #endif
 
 static const TString& getNameForIdMap(TIntermSymbol* symbol)
diff --git a/glslang/MachineIndependent/localintermediate.h b/glslang/MachineIndependent/localintermediate.h
index bb3ae77b..195a24eb 100644
--- a/glslang/MachineIndependent/localintermediate.h
+++ b/glslang/MachineIndependent/localintermediate.h
@@ -1131,6 +1131,7 @@ protected:
     void mergeCallGraphs(TInfoSink&, TIntermediate&);
     void mergeModes(TInfoSink&, TIntermediate&);
     void mergeTrees(TInfoSink&, TIntermediate&);
+    void mergeSources(TInfoSink&, TIntermediate&); // @MEWIN 2023-02-22 - Added function to merge source files when linking shaders.
     void seedIdMap(TIdMaps& idMaps, long long& IdShift);
     void remapIds(const TIdMaps& idMaps, long long idShift, TIntermediate&);
     void mergeBodies(TInfoSink&, TIntermSequence& globals, const TIntermSequence& unitGlobals);