mysql-connector-cpp: another try at macOS cross-compilation

recipes/mysql-connector-cpp/all/conanfile.py

@@ -6,7 +6,7 @@
 from conan.tools.build import check_min_cppstd
 from conan.tools.cmake import CMake, CMakeToolchain, CMakeDeps, cmake_layout
 from conan.tools.env import VirtualBuildEnv, VirtualRunEnv
-from conan.tools.files import get, copy, rm, export_conandata_patches, apply_conandata_patches, save
+from conan.tools.files import get, copy, rm, export_conandata_patches, apply_conandata_patches, replace_in_file
 from conan.tools.microsoft import is_msvc_static_runtime
 from conan.tools.scm import Version
 
@@ -108,13 +108,17 @@ def generate(self):
         deps.set_property("zstd", "cmake_target_name", "ext::zstd")
         deps.generate()
 
-    def build(self):
+    def _patch_sources(self):
         apply_conandata_patches(self)
         if is_apple_os(self):
             # The CMAKE_OSX_ARCHITECTURES value set by Conan seems to be having no effect for some reason.
             # This is a workaround for that.
-            save(self, os.path.join(self.source_folder, "cdk", "cmake", "platform.cmake"),
-                f"\nadd_compile_options(-arch {self.settings.arch})\n", append=True)
+            replace_in_file(self, os.path.join(self.source_folder, "CMakeLists.txt"),
+                            "PROJECT(MySQL_CONCPP)",
+                            f"PROJECT(MySQL_CONCPP)\n\nadd_compile_options(-arch {self.settings.arch})\n")
+
+    def build(self):
+        self._patch_sources()
         cmake = CMake(self)
         cmake.configure()
         cmake.build()