diff --git a/.github/workflows/code_checks.yml b/.github/workflows/code_checks.yml
index a7f8678be5..3538f280b1 100644
--- a/.github/workflows/code_checks.yml
+++ b/.github/workflows/code_checks.yml
@@ -54,6 +54,7 @@ jobs:
                 ':!build/bakefiles/make_dist.mk' \
                 ':!build/bakefiles/scintilla.bkl' \
                 ':!docs/doxygen/doxygen-awesome-css/*' \
+                ':!samples/widgets/widgets.bkl' \
                 ':!tests/test.bkl' \
                 ':!**/*akefile*' \
                 ':!**/*.pbxproj' \
diff --git a/samples/widgets/makefile.unx b/samples/widgets/makefile.unx
index 4c6351e153..fc826d79d0 100644
--- a/samples/widgets/makefile.unx
+++ b/samples/widgets/makefile.unx
@@ -220,5 +220,14 @@ widgets_widgets.o: ./widgets.cpp
 .PHONY: all install uninstall clean
 
 
+widgets_native_wrapper.o: ./native_wrapper.mm ./native.cpp
+	$(CXX) -c -o $@ $(WIDGETS_CXXFLAGS) $(OBJCXXFLAGS) ./native_wrapper.mm
+
+ifeq ($(WX_PORT),osx_cocoa)
+WIDGETS_OBJECTS += widgets_native_wrapper.o
+
+widgets: widgets_native_wrapper.o
+endif
+
 # Dependencies tracking:
 -include ./*.d
diff --git a/samples/widgets/widgets.bkl b/samples/widgets/widgets.bkl
index 5c85f3aa40..25da900a70 100644
--- a/samples/widgets/widgets.bkl
+++ b/samples/widgets/widgets.bkl
@@ -13,13 +13,27 @@
       -->
     <set var="NATIVE_OBJCPP_SRC">
         <if cond="OUT_OF_TREE_MAKEFILES=='1'">
-            <!-- We can't determine if we're using Cocoa or not, assume we don't -->
+            <!--
+                We can't determine if we're using Cocoa or not at generation
+                time, so deal with it in the makefile fragment below.
+             -->
         </if>
         <if cond="TOOLKIT=='OSX_COCOA' and WXUNIV=='0'">
             native_wrapper.mm
         </if>
     </set>
 
+    <fragment format="gnu">
+widgets_native_wrapper.o: ./native_wrapper.mm ./native.cpp
+	$(CXX) -c -o $@ $(WIDGETS_CXXFLAGS) $(OBJCXXFLAGS) ./native_wrapper.mm
+
+ifeq ($(WX_PORT),osx_cocoa)
+WIDGETS_OBJECTS += widgets_native_wrapper.o
+
+widgets: widgets_native_wrapper.o
+endif
+    </fragment>
+
     <exe id="widgets" template="wx_sample" template_append="wx_append">
         <sources>
             activityindicator.cpp