Don't use FILE_SYSTEM_CASE in MS-DOS, or anywhere else.

 src/s/msdos.h (FILE_SYSTEM_CASE): Don't define.
 src/fileio.c (FILE_SYSTEM_CASE): Don't define.
 (Ffile_name_directory, Fexpand_file_name): Don't use FILE_SYSTEM_CASE.
 Fixes problems on MS-DOS with Vtemp_file_name_pattern when
 call-process-region passes it through expand-file-name.
 src/dired.c (file_name_completion): Don't use FILE_SYSTEM_CASE.
 admin/CPP-DEFINES: Remove FILE_SYSTEM_CASE.

4 files changed, 12 insertions, 13 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 7274fc4e4d8..716ebbadab6 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,15 @@
+2012-07-14  Eli Zaretskii  <eliz@gnu.org>
+
+        Remove FILE_SYSTEM_CASE.
+        * s/msdos.h (FILE_SYSTEM_CASE): Don't define.
+
+        * fileio.c (FILE_SYSTEM_CASE): Don't define.
+        (Ffile_name_directory, Fexpand_file_name): Don't use FILE_SYSTEM_CASE.
+        Fixes problems on MS-DOS with Vtemp_file_name_pattern when
+        call-process-region passes it through expand-file-name.
+
+        * dired.c (file_name_completion): Don't use FILE_SYSTEM_CASE.
+
 2012-07-12  Andreas Schwab  <schwab@linux-m68k.org>
 
         Fix crash when creating indirect buffer (Bug#11917)
diff --git a/src/dired.c b/src/dired.c
index 9b0f94a0760..8665fd0dc6d 100644
--- a/src/dired.c
+++ b/src/dired.c
@@ -470,9 +470,6 @@ file_name_completion (Lisp_Object file, Lisp_Object dirname, int all_flag, int v
 
   CHECK_STRING (file);
 
-#ifdef FILE_SYSTEM_CASE
-  file = FILE_SYSTEM_CASE (file);
-#endif
   bestmatch = Qnil;
   encoded_file = encoded_dir = Qnil;
   GCPRO5 (file, dirname, bestmatch, encoded_file, encoded_dir);
diff --git a/src/fileio.c b/src/fileio.c
index 0d1a87b65b7..3b8ed143005 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -83,10 +83,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "commands.h"
 
-#ifndef FILE_SYSTEM_CASE
-#define FILE_SYSTEM_CASE(filename)  (filename)
-#endif
-
 /* Nonzero during writing of auto-save files */
 static int auto_saving;
 
@@ -334,7 +330,6 @@ Given a Unix syntax file name, returns a string ending in slash.  */)
       return STRINGP (handled_name) ? handled_name : Qnil;
     }
 
-  filename = FILE_SYSTEM_CASE (filename);
 #ifdef DOS_NT
   beg = (char *) alloca (SBYTES (filename) + 1);
   memcpy (beg, SSDATA (filename), SBYTES (filename) + 1);
@@ -864,7 +859,6 @@ filesystem tree, not (expand-file-name ".."  dirname).  */)
         UNGCPRO;
       }
   }
-  name = FILE_SYSTEM_CASE (name);
   multibyte = STRING_MULTIBYTE (name);
   if (multibyte != STRING_MULTIBYTE (default_directory))
     {
diff --git a/src/s/msdos.h b/src/s/msdos.h
index cde24147c57..d2058f2e425 100644
--- a/src/s/msdos.h
+++ b/src/s/msdos.h
@@ -94,10 +94,6 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
 :se=</SO>:so=<SO>:us=<UL>:ue=</UL>:md=<BD>:mh=<DIM>:mb=<BL>:mr=<RV>:me=<NV>:\
 :AB=<BG %d>:AF=<FG %d>:op=<DefC>:"
 
-/* Define this to a function (Fdowncase, Fupcase) if your file system
-   likes that.  */
-#define FILE_SYSTEM_CASE Fmsdos_downcase_filename
-
 /* Define this to be the separator between devices and paths.  */
 #define DEVICE_SEP ':'