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"