build(grantlee): strip explicit QT_TESTCASE_BUILDDIR target_compile_definitions to avoid macro redefinition; keep Qt6 Test find_package injection

app/build_grantlee_qt6.sh

@@ -67,6 +67,19 @@ for p in Path('.').rglob('*'):
         except Exception as e:
             print('Skipping', p, 'error', e)
 
+# remove explicit QT_TESTCASE_BUILDDIR compile definitions to avoid duplicate -D on command line
+pat_qt_test_def = re.compile(r"^\s*target_compile_definitions\([^\n]*QT_TESTCASE_BUILDDIR[^\n]*\)\s*$", re.M)
+for p in Path('.').rglob('*'):
+    if p.is_file() and p.name=='CMakeLists.txt':
+        try:
+            s = p.read_text()
+            s2 = pat_qt_test_def.sub(lambda m: '# PATCHED: removed QT_TESTCASE_BUILDDIR definition to avoid macro redefinition', s)
+            if s2 != s:
+                p.write_text(s2)
+                print('Removed QT_TESTCASE_BUILDDIR in', p)
+        except Exception as e:
+            print('Skipping', p, 'error', e)
+
 # ensure files linking to Qt6::Test have a find_package(Qt6 Test REQUIRED)
 for p in Path('.').rglob('*'):
     if p.is_file() and (p.name=='CMakeLists.txt' or p.suffix=='.cmake'):