Xcode: Use deterministic object ids for script build phases

The Xcode "new build system" only considers a script build phase up to
date if it has run before, even if outputs are newer than inputs.  Use a
deterministic object id for script build phases associated with custom
commands so that they do not need to re-run after CMake re-generates the
project.

Fixes: #21669

1 files changed, 2 insertions, 1 deletions

diff --git a/Source/cmGlobalXCodeGenerator.h b/Source/cmGlobalXCodeGenerator.h
index e9b38fcdc7..8ff6846e96 100644
--- a/Source/cmGlobalXCodeGenerator.h
+++ b/Source/cmGlobalXCodeGenerator.h
@@ -254,7 +254,8 @@ private:
                                            cmGeneratorTarget const* gt,
                                            cmCustomCommand const& cc);
   cmXCodeObject* CreateRunScriptBuildPhase(
-    std::string const& name, std::vector<cmCustomCommand> const& commands);
+    std::string const& name, cmGeneratorTarget const* gt,
+    std::vector<cmCustomCommand> const& commands);
   std::string ConstructScript(cmCustomCommandGenerator const& ccg);
   void CreateReRunCMakeFile(cmLocalGenerator* root,
                             std::vector<cmLocalGenerator*> const& gens);