Based on https://github.com/blender/blender/commit/8e237d83f2138fb94933f971a070a0552f1f506a
diff --git intern/locale/boost_locale_wrapper.cpp intern/locale/boost_locale_wrapper.cpp
index ede9377b38f..73433fe7c5e 100644
--- intern/locale/boost_locale_wrapper.cpp
+++ intern/locale/boost_locale_wrapper.cpp
@@ -117,13 +117,6 @@ void bl_locale_set(const char *locale)
 
 #undef LOCALE_INFO
   }
-  // Extra catch on `std::runtime_error` is needed for macOS/Clang as it seems that exceptions
-  // like `boost::locale::conv::conversion_error` (which inherit from `std::runtime_error`) are
-  // not caught by their ancestor `std::exception`. See
-  // https://developer.blender.org/T88877#1177108 .
-  catch (std::runtime_error const &e) {
-    std::cout << "bl_locale_set(" << locale << "): " << e.what() << " \n";
-  }
   catch (std::exception const &e) {
     std::cout << "bl_locale_set(" << locale << "): " << e.what() << " \n";
   }
diff --git intern/locale/osx_user_locale.mm intern/locale/osx_user_locale.mm
index ce694b5fc1e..e2f65d39df9 100644
--- intern/locale/osx_user_locale.mm
+++ intern/locale/osx_user_locale.mm
@@ -14,17 +14,7 @@ const char *osx_user_locale()
   CFLocaleRef myCFLocale = CFLocaleCopyCurrent();
   NSLocale *myNSLocale = (NSLocale *)myCFLocale;
   [myNSLocale autorelease];
-
-  // This produces gettext-invalid locale in recent macOS versions (11.4),
-  // like `ko-Kore_KR` instead of `ko_KR`. See T88877.
-  // NSString *nsIdentifier = [myNSLocale localeIdentifier];
-
-  const NSString *nsIdentifier = [myNSLocale languageCode];
-  const NSString *const nsIdentifier_country = [myNSLocale countryCode];
-  if ([nsIdentifier length] != 0 && [nsIdentifier_country length] != 0) {
-    nsIdentifier = [NSString stringWithFormat:@"%@_%@", nsIdentifier, nsIdentifier_country];
-  }
-
+  NSString *nsIdentifier = [myNSLocale localeIdentifier];
   user_locale = ::strdup([nsIdentifier UTF8String]);
   [pool drain];