(Fexpand_file_name): Fix expansion of "/foo/../".

1 files changed, 2 insertions, 1 deletions

diff --git a/src/fileio.c b/src/fileio.c
index 3be84dcb52f..abb142175d5 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1379,7 +1379,8 @@ See also the function `substitute-in-file-name'.")
         {
           while (o != target && (--o) && !IS_DIRECTORY_SEP (*o))
             ;
-          if (o == target && IS_ANY_SEP (*o))
+          /* Keep initial / only if this is the whole name.  */
+          if (o == target && IS_ANY_SEP (*o) && p[3] == 0)
             ++o;
           p += 3;
         }