Autogen/RCC: Disable zstd if it is not supported

Add the `--no-zstd` argument for `RCC` when `QT_FEATURE_zstd` is `OFF`.
This causes user project builds to fail.  That bug is fixed in Qt
by https://codereview.qt-project.org/c/qt/qtbase/+/537546 but for
the older versions, fix it here too.

Fixes: #25664

1 files changed, 21 insertions, 0 deletions

diff --git a/Source/cmQtAutoGenInitializer.cxx b/Source/cmQtAutoGenInitializer.cxx
index aaf1817..8542206 100644
--- a/Source/cmQtAutoGenInitializer.cxx
+++ b/Source/cmQtAutoGenInitializer.cxx
@@ -883,6 +883,27 @@ bool cmQtAutoGenInitializer::InitRcc()
     }
   }
 
+  // Disable zstd if it is not supported
+  {
+    std::string const qtFeatureZSTD = "QT_FEATURE_zstd";
+    if (this->GenTarget->Target->GetMakefile()->IsDefinitionSet(
+          qtFeatureZSTD)) {
+      const auto zstdDef =
+        this->GenTarget->Target->GetMakefile()->GetSafeDefinition(
+          qtFeatureZSTD);
+      const auto zstdVal = cmValue(zstdDef);
+      if (zstdVal.IsOff()) {
+        auto const& kw = this->GlobalInitializer->kw();
+        auto rccOptions = this->GenTarget->GetSafeProperty(kw.AUTORCC_OPTIONS);
+        std::string const nozstd = "--no-zstd";
+        if (rccOptions.find(nozstd) == std::string::npos) {
+          rccOptions.append(";" + nozstd + ";");
+        }
+        this->GenTarget->Target->SetProperty(kw.AUTORCC_OPTIONS, rccOptions);
+      }
+    }
+  }
+
   return true;
 }