diff -ur a/proc/escape.c b/proc/escape.c
--- a/proc/escape.c	2022-05-04 06:50:01.750000000 +0000
+++ b/proc/escape.c	2022-05-04 06:50:29.050000000 +0000
@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <string.h>
+#include <langinfo.h>
 #include <limits.h>
 #include "procps.h"
 #include "escape.h"