diff -urN repmgr-5.2.1.orig/configfile-scan.l repmgr-5.2.1/configfile-scan.l
--- repmgr-5.2.1.orig/configfile-scan.l	2021-06-02 21:57:20.632247440 +0200
+++ repmgr-5.2.1/configfile-scan.l	2021-06-02 21:59:22.718256233 +0200
@@ -7,6 +7,7 @@
 #include <setjmp.h>
 #include <sys/stat.h>
 #include <dirent.h>
+#include <bsd/string.h>
 
 #include "repmgr.h"
 #include "configfile.h"
diff -urN repmgr-5.2.1.orig/dbutils.c repmgr-5.2.1/dbutils.c
--- repmgr-5.2.1.orig/dbutils.c	2021-06-02 21:57:20.633247440 +0200
+++ repmgr-5.2.1/dbutils.c	2021-06-02 21:59:17.981255892 +0200
@@ -24,6 +24,7 @@
 #include <sys/stat.h>
 #include <dirent.h>
 #include <arpa/inet.h>
+#include <bsd/string.h>
 
 #include "repmgr.h"
 #include "dbutils.h"