1 files changed, 4 insertions, 0 deletions
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 71ab2a6..185bff9 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -1922,9 +1922,13 @@ bool cmGlobalGenerator::AddAutomaticSources()
   // Clear the source list and classification cache (KindedSources) of all
   // targets so that it will be recomputed correctly by the generators later
   // now that the above transformations are done for all targets.
+  // Also clear the link interface cache to support $<TARGET_OBJECTS:objlib>
+  // in INTERFACE_LINK_LIBRARIES because the list of object files may have
+  // been changed by conversion to a unity build or addition of a PCH source.
   for (const auto& lg : this->LocalGenerators) {
     for (const auto& gt : lg->GetGeneratorTargets()) {
       gt->ClearSourcesCache();
+      gt->ClearLinkInterfaceCache();
     }
   }
   return true;