2 files changed, 23 insertions, 9 deletions
diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 333ed07..29d2af3 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -8052,21 +8052,30 @@ void cmGeneratorTarget::GetLanguages(std::set<std::string>& languages,
       objectLibraries.insert(gt);
     }
   } else {
-    std::vector<cmSourceFile const*> externalObjects;
-    this->GetExternalObjects(externalObjects, config);
-    for (cmSourceFile const* extObj : externalObjects) {
-      std::string objLib = extObj->GetObjectLibrary();
-      if (cmGeneratorTarget* tgt =
-            this->LocalGenerator->FindGeneratorTargetToUse(objLib)) {
-        objectLibraries.insert(tgt);
-      }
-    }
+    objectLibraries = this->GetSourceObjectLibraries(config);
   }
   for (cmGeneratorTarget const* objLib : objectLibraries) {
     objLib->GetLanguages(languages, config);
   }
 }
 
+std::set<cmGeneratorTarget const*> cmGeneratorTarget::GetSourceObjectLibraries(
+  std::string const& config) const
+{
+  std::set<cmGeneratorTarget const*> objectLibraries;
+  std::vector<cmSourceFile const*> externalObjects;
+  this->GetExternalObjects(externalObjects, config);
+  for (cmSourceFile const* extObj : externalObjects) {
+    std::string objLib = extObj->GetObjectLibrary();
+    if (cmGeneratorTarget* tgt =
+          this->LocalGenerator->FindGeneratorTargetToUse(objLib)) {
+      objectLibraries.insert(tgt);
+    }
+  }
+
+  return objectLibraries;
+}
+
 bool cmGeneratorTarget::IsLanguageUsed(std::string const& language,
                                        std::string const& config) const
 {
diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index bf49914..2a301e3 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -463,6 +463,11 @@ public:
   bool IsLanguageUsed(std::string const& language,
                       std::string const& config) const;
 
+  // Get the set of targets directly referenced via `TARGET_OBJECTS` in the
+  // source list for a configuration.
+  std::set<cmGeneratorTarget const*> GetSourceObjectLibraries(
+    std::string const& config) const;
+
   bool IsCSharpOnly() const;
 
   bool IsDotNetSdkTarget() const;