Fix T88877: 2.93: Crash on recent OSX with a non-English locale.

Looks like OSX changed the default format of its locale, which is not
valid anymore for gettext/boost::locale.

Solution based on investigations and patch by Kieun Mun (@kieuns), with
some further tweaks by Ankit Meel (@ankitm), many thanks.

Also add an exception catcher on `std::runtime_error` in
`bl_locale_set()`, since in OSX catching the ancestor `std::exception`
does not work with `boost::locale::conv::conversion_error` and the like
for some reasons.

Reviewed By: #platform_macos, brecht

Maniphest Tasks: T88877

Differential Revision: https://developer.blender.org/D13019

2 files changed, 18 insertions, 1 deletions

diff --git a/intern/locale/boost_locale_wrapper.cpp b/intern/locale/boost_locale_wrapper.cpp
index 73433fe7c5e..ede9377b38f 100644
--- a/intern/locale/boost_locale_wrapper.cpp
+++ b/intern/locale/boost_locale_wrapper.cpp
@@ -117,6 +117,13 @@ 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 a/intern/locale/osx_user_locale.mm b/intern/locale/osx_user_locale.mm
index e2f65d39df9..ce694b5fc1e 100644
--- a/intern/locale/osx_user_locale.mm
+++ b/intern/locale/osx_user_locale.mm
@@ -14,7 +14,17 @@ const char *osx_user_locale()
   CFLocaleRef myCFLocale = CFLocaleCopyCurrent();
   NSLocale *myNSLocale = (NSLocale *)myCFLocale;
   [myNSLocale autorelease];
-  NSString *nsIdentifier = [myNSLocale localeIdentifier];
+
+  // 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];
+  }
+
   user_locale = ::strdup([nsIdentifier UTF8String]);
   [pool drain];