-diff -ur postgresql-12.10.orig/configure.in postgresql-12.10/configure.in
---- postgresql-12.10.orig/configure.in 2022-02-07 22:19:04.000000000 +0100
-+++ postgresql-12.10/configure.in 2022-04-04 18:10:43.532106587 +0200
+--- postgresql-12.15.orig/configure.in 2022-02-07 22:19:04.000000000 +0100
++++ postgresql-12.15/configure.in 2022-04-04 18:10:43.532106587 +0200
@@ -19,10 +19,6 @@
- AC_INIT([PostgreSQL], [12.10], [pgsql-bugs@lists.postgresql.org])
+ AC_INIT([PostgreSQL], [12.15], [pgsql-bugs@lists.postgresql.org])
-m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required.
-Untested combinations of 'autoconf' and PostgreSQL versions are not