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-rw-r--r--src/include/utils/pg_locale.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/utils/pg_locale.h b/src/include/utils/pg_locale.h
index c2754279760..8c095abc524 100644
--- a/src/include/utils/pg_locale.h
+++ b/src/include/utils/pg_locale.h
@@ -120,6 +120,7 @@ extern size_t pg_strnxfrm_prefix(char *dest, size_t destsize, const char *src,
size_t srclen, pg_locale_t locale);
extern void icu_validate_locale(const char *loc_str);
+extern char *icu_language_tag(const char *loc_str, int elevel);
#ifdef USE_ICU
extern int32_t icu_to_uchar(UChar **buff_uchar, const char *buff, size_t nbytes);