Fix bug #18873 with non-ASCII characters in user's HOME directory.

 src/fileio.c (Fexpand_file_name): Use make_unibyte_string, not
 build_string, when importing a home directory.

2 files changed, 7 insertions, 2 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index da3e4d682d5..33ee723fe66 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2014-10-28  Eli Zaretskii  <eliz@gnu.org>
+
+        * fileio.c (Fexpand_file_name): Use make_unibyte_string, not
+        build_string, when importing a home directory.  (Bug#18873)
+
 2014-10-26  Eli Zaretskii  <eliz@gnu.org>
 
         * dispnew.c (buffer_posn_from_coords): Use
diff --git a/src/fileio.c b/src/fileio.c
index b4653017b28..fba64010b54 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1166,7 +1166,7 @@ filesystem tree, not (expand-file-name ".."  dirname).  */)
               char newdir_utf8[MAX_UTF8_PATH];
 
               filename_from_ansi (newdir, newdir_utf8);
-              tem = build_string (newdir_utf8);
+              tem = make_unibyte_string (newdir_utf8, strlen (newdir_utf8));
             }
           else
 #endif
@@ -1200,7 +1200,7 @@ filesystem tree, not (expand-file-name ".."  dirname).  */)
               /* `getpwnam' may return a unibyte string, which will
                  bite us since we expect the directory to be
                  multibyte.  */
-              tem = build_string (newdir);
+              tem = make_unibyte_string (newdir, strlen (newdir));
               if (multibyte && !STRING_MULTIBYTE (tem))
                 {
                   hdir = DECODE_FILE (tem);