[CF 5301] v15 - Collation and ctype method tables and extension hooks

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Patch(es): https://www.postgresql.org/message-id/[email protected]
Author(s): Jeff Davis

Author: Commitfest Bot

src/backend/commands/collationcmds.c

@@ -14,6 +14,10 @@
  */
 #include "postgres.h"
 
+#ifdef USE_ICU
+#include <unicode/ucol.h>
+#endif
+
 #include "access/htup_details.h"
 #include "access/table.h"
 #include "access/xact.h"