diff '--color=auto' -ru NetHack-3.6.7/src/files.c NetHack-3.6.7-fix/src/files.c
--- NetHack-3.6.7/src/files.c	2023-02-15 16:52:57.000000000 -0500
+++ NetHack-3.6.7-fix/src/files.c	2026-03-29 17:25:31.135961712 -0400
@@ -4020,6 +4020,11 @@
 #ifndef PATH_MAX
 #include <limits.h>
 #endif
+
+/* the Hurd still doesn't define PATH_MAX */
+#ifndef PATH_MAX
+#define PATH_MAX 2048
+#endif
 #endif
 
 void