Index: libpam-mount-2.11/src/mount.c
===================================================================
--- libpam-mount-2.11.orig/src/mount.c	2011-08-07 01:59:05.000000000 +0200
+++ libpam-mount-2.11/src/mount.c	2011-09-12 18:53:46.216002265 +0200
@@ -30,6 +30,10 @@
 #include <pwd.h>
 #include "pam_mount.h"
 
+#ifndef PATH_MAX
+#define PATH_MAX 4096 /* Hurd does not define PATH_MAX in limits.h */
+#endif
+
 /* Functions */
 static inline bool mkmountpoint(struct vol *, const char *);
 
Index: libpam-mount-2.11/src/pmvarrun.c
===================================================================
--- libpam-mount-2.11.orig/src/pmvarrun.c	2011-08-07 01:59:05.000000000 +0200
+++ libpam-mount-2.11/src/pmvarrun.c	2011-09-12 18:53:46.216002265 +0200
@@ -34,6 +34,10 @@ pmvarrun.c -- Updates /run/pam_mount/<us
 #include <pwd.h>
 #include "pam_mount.h"
 
+#ifndef PATH_MAX
+#define PATH_MAX 4096 /* Hurd does not define PATH_MAX in limits.h */
+#endif
+
 /* Definitions */
 #define ASCIIZ_LLX      sizeof("0xFFFFFFFF""FFFFFFFF")
 #define VAR_RUN_PMT     RUNDIR "/pam_mount"
