Fix #32819: Crash when starting CUDA kernel compilation if UI translation is not "Default"

Issue was caused by some boost filesystem routines accessing current locale
and such an access failed in cases code page isn't specified for the current
locale.

Made it so UTF-8 locale name would be tried to be used first.

1 files changed, 38 insertions, 32 deletions

diff --git a/source/blender/blenfont/intern/blf_lang.c b/source/blender/blenfont/intern/blf_lang.c
index ff574a71549..284983b346a 100644
--- a/source/blender/blenfont/intern/blf_lang.c
+++ b/source/blender/blenfont/intern/blf_lang.c
@@ -214,11 +214,33 @@ void BLF_lang_set(const char *str)
 			get_language_variable("LANGUAGE", default_language, sizeof(default_language));
 
 		if (short_locale[0]) {
+			char *short_locale_utf8 = BLI_sprintfN("%s.UTF-8", short_locale);
+
 			if (G.debug & G_DEBUG)
-				printf("Setting LANG= and LANGUAGE to %s\n", short_locale);
+				printf("Setting LANG and LANGUAGE to %s\n", short_locale_utf8);
+
+			locreturn = setlocale(LC_ALL, short_locale_utf8);
+
+			if (locreturn != NULL) {
+				BLI_setenv("LANG", short_locale_utf8);
+				BLI_setenv("LANGUAGE", short_locale_utf8);
+			}
+			else {
+				if (G.debug & G_DEBUG)
+					printf("Setting LANG and LANGUAGE to %s\n", short_locale);
+
+				locreturn = setlocale(LC_ALL, short_locale);
 
-			BLI_setenv("LANG", short_locale);
-			BLI_setenv("LANGUAGE", short_locale);
+				if (locreturn != NULL) {
+					BLI_setenv("LANG", short_locale);
+					BLI_setenv("LANGUAGE", short_locale);
+				}
+			}
+
+			if (G.debug & G_DEBUG && locreturn == NULL)
+				printf("Could not change locale to %s nor %s\n", short_locale, short_locale_utf8);
+
+			MEM_freeN(short_locale_utf8);
 		}
 		else {
 			if (G.debug & G_DEBUG)
@@ -226,43 +248,27 @@ void BLF_lang_set(const char *str)
 
 			BLI_setenv("LANG", default_lang);
 			BLI_setenv("LANGUAGE", default_language);
-		}
+			locreturn = setlocale(LC_ALL, "");
 
-		locreturn = setlocale(LC_ALL, short_locale);
+			if (G.debug & G_DEBUG && locreturn == NULL)
+				printf("Could not reset locale\n");
+		}
 
 		if (locreturn == NULL) {
-			char *short_locale_utf8 = NULL;
-
-			if (short_locale[0]) {
-				short_locale_utf8 = BLI_sprintfN("%s.UTF-8", short_locale);
-				locreturn = setlocale(LC_ALL, short_locale_utf8);
-			}
-
-			if (locreturn == NULL) {
-				char language[65];
-
-				get_language(long_locale, default_lang, language, sizeof(language));
+			char language[65];
 
-				if (G.debug & G_DEBUG) {
-					if (short_locale[0])
-						printf("Could not change locale to %s nor %s\n", short_locale, short_locale_utf8);
-					else
-						printf("Could not reset locale\n");
+			get_language(long_locale, default_lang, language, sizeof(language));
 
-					printf("Fallback to LANG=%s and LANGUAGE=%s\n", default_lang, language);
-				}
-
-				/* Fallback to default settings. */
-				BLI_setenv("LANG", default_lang);
-				BLI_setenv("LANGUAGE", language);
+			if (G.debug & G_DEBUG)
+				printf("Fallback to LANG=%s and LANGUAGE=%s\n", default_lang, language);
 
-				locreturn = setlocale(LC_ALL, "");
+			/* Fallback to default settings. */
+			BLI_setenv("LANG", default_lang);
+			BLI_setenv("LANGUAGE", language);
 
-				ok = 0;
-			}
+			locreturn = setlocale(LC_ALL, "");
 
-			if (short_locale_utf8)
-				MEM_freeN(short_locale_utf8);
+			ok = 0;
 		}
 	}
 #endif