diff -up which-2.21/which.c.me which-2.21/which.c
--- which-2.21/which.c.me	2022-11-07 13:11:03.580798950 +0100
+++ which-2.21/which.c	2022-11-07 15:45:41.366085798 +0100
@@ -19,10 +19,15 @@
 #include "sys.h"
 #include <stdio.h>
 #include <ctype.h>
+#include <limits.h>
 #include "getopt.h"
 #include "tilde/tilde.h"
 #include "bash.h"
 
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
 static const char *progname;
 
 static void print_usage(FILE *out)
@@ -63,7 +68,7 @@ static void print_fail(const char *name,
   fprintf(stderr, "%s: no %s in (%s)\n", progname, name, path_list);
 }
 
-static char home[256];
+static char home[PATH_MAX];
 static size_t homelen = 0;
 
 static int absolute_path_given;
@@ -163,7 +168,7 @@ static char *find_command_in_path(const
   return (found);
 }
 
-static char cwd[256];
+static char cwd[PATH_MAX];
 static size_t cwdlen;
 
 static void get_current_working_directory(void)
@@ -195,7 +200,7 @@ static void get_current_working_director
 
 static char *path_clean_up(const char *path)
 {
-  static char result[256];
+  static char result[PATH_MAX];
 
   const char *p1 = path;
   char *p2 = result;