target_link_libraries: Place $<TARGET_OBJECTS> before libraries

Linkers always use object files explicitly specified on the command line
regardless of where they appear.  Move them to the front of the list of
linked libraries in so that symbols required by the object files can be
resolved by any library.

Issue: #22149

1 files changed, 13 insertions, 0 deletions

diff --git a/Source/cmComputeTargetDepends.cxx b/Source/cmComputeTargetDepends.cxx
index 0f23417..76712f4 100644
--- a/Source/cmComputeTargetDepends.cxx
+++ b/Source/cmComputeTargetDepends.cxx
@@ -20,6 +20,7 @@
 #include "cmProperty.h"
 #include "cmRange.h"
 #include "cmSourceFile.h"
+#include "cmSourceFileLocationKind.h"
 #include "cmState.h"
 #include "cmStateTypes.h"
 #include "cmStringAlgorithms.h"
@@ -227,6 +228,12 @@ void cmComputeTargetDepends::CollectTargetDepends(int depender_index)
             this->AddInterfaceDepends(depender_index, lib, it, emitted);
           }
         }
+        for (cmLinkItem const& obj : impl->Objects) {
+          if (cmSourceFile const* o = depender->Makefile->GetSource(
+                obj.AsStr(), cmSourceFileLocationKind::Known)) {
+            this->AddObjectDepends(depender_index, o, emitted);
+          }
+        }
       }
 
       // Add dependencies on object libraries not otherwise handled above.
@@ -274,6 +281,12 @@ void cmComputeTargetDepends::AddInterfaceDepends(
         this->AddInterfaceDepends(depender_index, libBT, config, emitted);
       }
     }
+    for (cmLinkItem const& obj : iface->Objects) {
+      if (cmSourceFile const* o = depender->Makefile->GetSource(
+            obj.AsStr(), cmSourceFileLocationKind::Known)) {
+        this->AddObjectDepends(depender_index, o, emitted);
+      }
+    }
   }
 }