Enable retargeting of example schema

src/examples/CMakeLists.txt

@@ -36,7 +36,17 @@ else()
 endif()
 
 macro(build_example exe_name)
+    set(_target_schema "")
     set(additional_targets ${ARGN})
+    list(LENGTH additional_targets _argc)
+    if(_argc GREATER 0)
+        list(GET additional_targets 0 _first_arg)
+        if("${_first_arg}" IN_LIST SCHEMA_VERSIONS)
+            set(_target_schema ${_first_arg})
+            list(REMOVE_AT additional_targets 0)
+        endif()
+    endif()
+
     add_executable(${exe_name} ${exe_name}.cpp)
 
     if(STANDALONE_PROJECT)
@@ -50,27 +60,38 @@ macro(build_example exe_name)
         target_link_libraries(${exe_name} IfcParse ${additional_targets})
         set_target_properties(${exe_name} PROPERTIES FOLDER Examples)
     endif()
+
+    if(_target_schema)
+        set_target_properties(
+            ${exe_name}
+            PROPERTIES COMPILE_FLAGS "-DIfcSchema=Ifc${_target_schema}"
+        )
+    endif()
+
+    unset(_target_schema)
+    unset(_argc)
+    unset(_first_arg)
     install(TARGETS ${exe_name})
 endmacro()
 
-if("4" IN_LIST SCHEMA_VERSIONS)
-    build_example(arbitrary_open_profile_def)
-    build_example(triangulated_faceset)
+if(SCHEMA_VERSIONS)
+    list(GET SCHEMA_VERSIONS -1 schema)
 endif()
 
-if("2x3" IN_LIST SCHEMA_VERSIONS)
-    build_example(composite_profile_def)
-    build_example(csg_primitive)
-    build_example(ellipse_pies)
-    build_example(faces)
-    build_example(ifc_curve_rebar)
-    build_example(profiles)
-    build_example(IfcParseExamples)
+build_example(arbitrary_open_profile_def ${schema})
+build_example(triangulated_faceset ${schema})
 
-    if(WITH_OPENCASCADE)
-        build_example(IfcOpenHouse geometry_serializer)
-        build_example(IfcAdvancedHouse geometry_serializer)
-    endif()
+build_example(composite_profile_def ${schema})
+build_example(csg_primitive ${schema})
+build_example(ellipse_pies ${schema})
+build_example(faces ${schema})
+build_example(ifc_curve_rebar ${schema})
+build_example(profiles ${schema})
+build_example(IfcParseExamples ${schema})
+
+if(WITH_OPENCASCADE)
+    build_example(IfcOpenHouse ${schema} geometry_serializer)
+    build_example(IfcAdvancedHouse ${schema} geometry_serializer)
 endif()
 
 if("4x3_add2" IN_LIST SCHEMA_VERSIONS)