commit 1eb32c5788a59b821087f971821536a22a3b65de
Author: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date:   Mon Apr 21 22:21:17 2025 +0200

    hurd: Make symlink return EEXIST on existing target directory
    
    The gnulib testsuite does not recognize ENOTDIR for such a situation,
    and this error is indeed more comprehensible to users.

diff --git a/sysdeps/mach/hurd/symlinkat.c b/sysdeps/mach/hurd/symlinkat.c
index e7dfb673df..cb6250e6f0 100644
--- a/sysdeps/mach/hurd/symlinkat.c
+++ b/sysdeps/mach/hurd/symlinkat.c
@@ -47,7 +47,7 @@ __symlinkat (const char *from, int fd, const char *to)
 
   if (! *name)
     /* Can't link to the existing directory itself.  */
-    err = ENOTDIR;
+    err = EEXIST;
   else
     /* Create a new, unlinked node in the target directory.  */
     err = __dir_mkfile (dir, O_WRITE, 0777 & ~_hurd_umask, &node);