Merge topic 'pchreuse-copy-depends'

a8cf09d49a PCH: Fix regression in REUSE_FROM that copies the `.pdb` too often

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !11702

Source/cmLocalGenerator.cxx

@@ -2901,6 +2901,7 @@ void cmLocalGenerator::CopyPchCompilePdb(
   std::string const copy_script = cmStrCat(target->GetSupportDirectory(),
                                            "/copy_idb_pdb_", config, ".cmake");
   cmGeneratedFileStream file(copy_script);
+  file.SetCopyIfDifferent(true);
 
   file << "# CMake generated file\n";