-diff -ur percona-server-5.7.28-31.orig/libmysql/libmysql.map percona-server-5.7.28-31/libmysql/libmysql.map
---- percona-server-5.7.28-31.orig/libmysql/libmysql.map 2019-12-16 22:38:32.587000000 +0100
-+++ percona-server-5.7.28-31/libmysql/libmysql.map 2019-12-16 23:41:16.223000000 +0100
+diff -ur percona-server-5.7.35-38.orig/libmysql/libmysql.map percona-server-5.7.35-38/libmysql/libmysql.map
+--- percona-server-5.7.35-38.orig/libmysql/libmysql.map 2021-11-24 19:40:24.831614501 +0100
++++ percona-server-5.7.35-38/libmysql/libmysql.map 2021-11-24 19:41:42.172797763 +0100
@@ -145,6 +145,7 @@
mysql_net_realloc;
# PHP's mysqli.so requires this (via the ER() macro)