patch 7.4.1399v7.4.1399

Problem:    The MS-DOS code does not build.
Solution:   Remove the old MS-DOS code.

44 files changed, 163 insertions, 4301 deletions

diff --git a/src/Make_bc3.mak b/src/Make_bc3.mak
deleted file mode 100644
index 0de7847663..0000000000
--- a/src/Make_bc3.mak
+++ /dev/null
@@ -1,184 +0,0 @@
-# Makefile for Borland C++ 3.1 or 4.0 to compile a 16 bit version of Vim.
-#
-# NOTE: THIS IS OLD AND PROBABLY NO LONGER WORKS.
-#
-# There are compilation options at the end of this file.
-#
-# Command line variables:
-# BOR		path to root of Borland C (E:\BORLANDC)
-# DEBUG		set to "yes" for debugging (no)
-# SPAWNO	path to the spawno library directory, empty if you do not have
-#		it; use 8.3 filenames! (C:\CC\SPAWN)
-
-.AUTODEPEND
-
-!ifndef BOR
-BOR = E:\BORLANDC
-!endif
-
-!if ("$(DEBUG)" == "yes")
-DEBUG_FLAG = -v
-!else
-DEBUG_FLAG =
-!endif
-
-CC = $(BOR)\bin\bcc.exe +VIM.CFG
-TLINK = $(BOR)\bin\tlink.exe
-
-!ifndef SPAWNO
-SPAWNO = C:\CC\SPAWN
-!endif
-
-!if ("$(SPAWNO)" == "")
-LIBPATH = $(BOR)\LIB
-INCLUDEPATH = $(BOR)\INCLUDE
-SPAWND =
-SPAWNL =
-!else
-LIBPATH = $(BOR)\LIB;$(SPAWNO)
-INCLUDEPATH = $(BOR)\INCLUDE;$(SPAWNO)
-SPAWND = ;SPAWNO
-SPAWNL = spawnl.lib
-!endif
-
-
-#		*Implicit Rules*
-#
-# use -v for debugging
-#
-.c.obj:
-	$(CC) -c $(DEBUG_FLAG) {$< }
-
-#		*List Macros*
-
-
-EXE_dependencies = \
-	blowfish.obj \
-	buffer.obj \
-	charset.obj \
-	crypt.obj \
-	crypt_zip.obj \
-	diff.obj \
-	digraph.obj \
-	edit.obj \
-	eval.obj \
-	ex_cmds.obj \
-	ex_cmds2.obj \
-	ex_docmd.obj \
-	ex_eval.obj \
-	ex_getln.obj \
-	fileio.obj \
-	fold.obj \
-	getchar.obj \
-	hardcopy.obj \
-	hashtab.obj \
-	json.obj \
-	main.obj \
-	mark.obj \
-	memfile.obj \
-	memline.obj \
-	menu.obj \
-	message.obj \
-	misc1.obj \
-	misc2.obj \
-	move.obj \
-	os_msdos.obj \
-	normal.obj \
-	ops.obj \
-	option.obj \
-	popupmnu.obj \
-	quickfix.obj \
-	regexp.obj \
-	screen.obj \
-	search.obj \
-	sha256.obj \
-	spell.obj \
-	syntax.obj \
-	tag.obj \
-	term.obj \
-	ui.obj \
-	undo.obj \
-	window.obj
-
-all: vim.exe install.exe uninstal.exe xxd/xxd.exe
-
-#		*Explicit Rules*
-
-vim.exe: vim.cfg $(EXE_dependencies) version.c
-	$(CC) $(DEBUG_FLAG) -c version.c
-	$(TLINK) /x/c/L$(LIBPATH) $(DEBUG_FLAG) @&&|
-c0l.obj $(EXE_dependencies) version.obj
-vim
-		# no map file
-$(SPAWNL) cl.lib
-|
-
-install.exe: dosinst.c
-	$(CC) -einstall $(DEBUG_FLAG) dosinst.c
-
-uninstal.exe: uninstal.c
-	$(CC) $(DEBUG_FLAG) uninstal.c
-
-# This may fail for older make versions, building xxd will fail anyway then.
-xxd/xxd.exe: xxd/xxd.c
-	cd xxd
-	$(MAKE) -f Make_bc3.mak BOR=$(BOR) DEBUG=$(DEBUG)
-	cd ..
-
-# cleaning up: Delete all generated files
-clean:
-	-del *.obj
-	-del vim.exe
-	-del vim.sym
-	-del install.exe
-	-del uninstal.exe
-	-del xxd\*.obj
-	-del xxd\xxd.exe
-	-del vim.cfg
-	-del testdir\*.out
-
-# Individual File Dependencies (incomplete)
-ex_docmd.obj: ex_docmd.c ex_cmds.h
-
-ex_eval.obj: ex_eval.c ex_cmds.h
-
-main.obj: main.c globals.h option.h
-
-term.obj: term.c term.h
-
-version.obj: version.c version.h
-
-
-# Compiler Configuration File
-#
-# The following compile options can be changed for better machines.
-#	replace -1- with -2 to produce code for a 80286 or higher
-#	replace -1- with -3 to produce code for a 80386 or higher
-#	add -v for source debugging
-vim.cfg: Make_bc3.mak
-	copy &&|
--ml
--1-
--f-
--C
--N
--O
--Z
--k-
--d
--h
--vi-
--H=VIM.SYM
--w-par
--weas
--wpre
--Iproto
--I$(INCLUDEPATH)
--L$(LIBPATH)
--DMSDOS;FEAT_TINY$(SPAWND)
-| vim.cfg
-
-test:
-	cd testdir
-	$(MAKE) -f Make_dos.mak small
-	cd ..
diff --git a/src/Make_bc5.mak b/src/Make_bc5.mak
index cb48ce05a3..012866be1c 100644
--- a/src/Make_bc5.mak
+++ b/src/Make_bc5.mak
@@ -7,6 +7,7 @@
 #
 # Contributed by Ben Singer.
 # Updated 4/1997 by Ron Aaron
+#	2016: removed support for 16 bit DOS
 #	6/1997 - added support for 16 bit DOS
 #	Note: this has been tested, and works, for BC5.  Your mileage may vary.
 #	Has been reported NOT to work with BC 4.52.  Maybe it can be fixed?
@@ -34,8 +35,7 @@
 # name		value (default)
 #
 # BOR		path to root of Borland C install (c:\bc5)
-# LINK		name of the linker ($(BOR)\bin\ilink if OSTYPE is DOS16,
-#		$(BOR)\bin\ilink32 otherwise)
+# LINK		name of the linker ($(BOR)\bin\ilink32)
 # GUI		no or yes: set to yes if you want the GUI version (yes)
 # LUA     define to path to Lua dir to get Lua support (not defined)
 #   LUA_VER	  define to version of Lua being used (51)
@@ -70,7 +70,6 @@
 # GETTEXT	no or yes: set to yes for multi-language support (yes)
 # ICONV		no or yes: set to yes for dynamic iconv support (yes)
 # OLE		no or yes: set to yes to make OLE gvim (no)
-# OSTYPE	DOS16 or WIN32 (WIN32)
 # DEBUG		no or yes: set to yes if you wish a DEBUGging build (no)
 # CODEGUARD	no or yes: set to yes if you want to use CODEGUARD (no)
 # CPUNR		1 through 6: select -CPU argument to compile with (3)
@@ -78,12 +77,11 @@
 # USEDLL	no or yes: set to yes to use the Runtime library DLL (no)
 #		For USEDLL=yes the cc3250.dll is required to run Vim.
 # VIMDLL	no or yes: create vim32.dll, and stub (g)vim.exe (no)
-# ALIGN		1, 2 or 4: Alignment to use (4 for Win32, 2 for DOS16)
+# ALIGN		1, 2 or 4: Alignment to use (4 for Win32)
 # FASTCALL	no or yes: set to yes to use register-based function protocol (yes)
 # OPTIMIZE	SPACE, SPEED, or MAXSPEED: type of optimization (MAXSPEED)
 # POSTSCRIPT	no or yes: set to yes for PostScript printing
-# FEATURES	TINY, SMALL, NORMAL, BIG or HUGE
-#		(BIG for WIN32, SMALL for DOS16)
+# FEATURES	TINY, SMALL, NORMAL, BIG or HUGE (BIG for WIN32)
 # WINVER	0x0400 or 0x0500: minimum Win32 version to support (0x0400)
 # CSCOPE	no or yes: include support for Cscope interface (yes)
 # NETBEANS	no or yes: include support for Netbeans interface; also
@@ -99,8 +97,7 @@
 BOR = c:\bc5
 !endif
 
-### LINK: Name of the linker: tlink or ilink32 (this is below, depends on
-# $(OSTYPE)
+### LINK: Name of the linker: ilink32 (this is below)
 
 ### GUI: yes for GUI version, no for console version
 !if ("$(GUI)"=="")
@@ -166,12 +163,6 @@ CHANNEL = yes
 ### OLE: no for normal gvim, yes for OLE-capable gvim (only works with GUI)
 #OLE = yes
 
-### OSTYPE: DOS16 for Windows 3.1 version, WIN32 for Windows 95/98/NT/2000
-#   version
-!if ("$(OSTYPE)"=="")
-OSTYPE = WIN32
-!endif
-
 ### DEBUG: Uncomment to make an executable for debugging
 # DEBUG = yes
 !if ("$(DEBUG)"=="yes")
@@ -208,14 +199,10 @@ USEDLL = no
 ### VIMDLL: yes for a DLL version of VIM (NOT RECOMMENDED), no otherwise
 #VIMDLL = yes
 
-### ALIGN: alignment you desire: (1,2 or 4: s/b 4 for Win32, 2 for DOS)
+### ALIGN: alignment you desire: (1,2 or 4: s/b 4 for Win32)
 !if ("$(ALIGN)"=="")
-!if ($(OSTYPE)==DOS16)
-ALIGN = 2
-!else
 ALIGN = 4
 !endif
-!endif
 
 ### FASTCALL: yes to use FASTCALL calling convention (RECOMMENDED!), no otherwise
 #   Incompatible when calling external functions (like MSVC-compiled DLLs), so
@@ -239,13 +226,9 @@ FASTCALL = yes
 OPTIMIZE = MAXSPEED
 !endif
 
-### FEATURES: TINY, SMALL, NORMAL, BIG or HUGE (BIG for WIN32, SMALL for DOS16)
+### FEATURES: TINY, SMALL, NORMAL, BIG or HUGE (BIG for WIN32)
 !if ("$(FEATURES)"=="")
-! if ($(OSTYPE)==DOS16)
-FEATURES = SMALL
-! else
 FEATURES = BIG
-! endif
 !endif
 
 ### POSTSCRIPT: uncomment this line if you want PostScript printing
@@ -266,24 +249,7 @@ WINVER = 0x0400
 # Sanity checks for the above options:
 #
 
-!if ($(OSTYPE)==DOS16)
-!if (($(CPUNR)+0)>4)
-!error CPUNR Must be less than or equal to 4 for DOS16
-!endif
-
-!if (($(ALIGN)+0)>2)
-!error ALIGN Must be less than or equal to 2 for DOS16
-!endif
-
-!else	# not DOS16
-!if (($(CPUNR)+0)<3)
-!error CPUNR Must be greater or equal to 3 for WIN32
-!endif
-!endif
-
-!if ($(OSTYPE)!=WIN32) && ($(OSTYPE)!=DOS16)
-!error Check the OSTYPE variable again: $(OSTYPE) is not supported!
-!endif
+OSTYPE = WIN32
 
 #
 # Optimizations: change as desired (RECOMMENDATION: Don't change!):
@@ -305,11 +271,6 @@ OPT = $(OPT) -pr
 OPT = $(OPT) -vi-
 !endif
 !endif
-!if ($(OSTYPE)==DOS16)
-!undef GUI
-!undef VIMDLL
-!undef USEDLL
-!endif
 # shouldn't have to change:
 LIB = $(BOR)\lib
 INCLUDE = $(BOR)\include;.;proto
@@ -483,16 +444,9 @@ TARGET = vimd.exe
 # for now, anyway: VIMDLL is only for the GUI version
 TARGET = vim.exe
 !endif
-!if ($(OSTYPE)==DOS16)
-DEFINES= -DFEAT_$(FEATURES) -DMSDOS
-EXETYPE=-ml
-STARTUPOBJ = c0l.obj
-LINK2 =
-!else
 EXETYPE=-WC
 STARTUPOBJ = c0x32.obj
 LINK2 = -ap -OS -o -P
-!endif
 RESFILE = vim.res
 !endif
 
@@ -545,16 +499,6 @@ DEFINES = $(DEFINES) -DMSWINPS
 ##### BASE COMPILER/TOOLS RULES #####
 MAKE = $(BOR)\bin\make
 CFLAGS = -w-aus -w-par -w-pch -w-ngu -w-csu -I$(INCLUDE)
-!if ($(OSTYPE)==DOS16)
-BRC =
-!if ("$(LINK)"=="")
-LINK	= $(BOR)\BIN\TLink
-!endif
-CC   = $(BOR)\BIN\Bcc
-LFLAGS	= -Tde -c -m -L$(LIB) $(DEBUG_FLAG) $(LINK2)
-LFLAGSDLL  =
-CFLAGS = $(CFLAGS) -H- $(HEADERS)
-!else
 BRC = $(BOR)\BIN\brc32
 !if ("$(LINK)"=="")
 LINK	= $(BOR)\BIN\ILink32
@@ -563,7 +507,6 @@ CC   = $(BOR)\BIN\Bcc32
 LFLAGS	= -OS -Tpe -c -m -L$(LIB) $(DEBUG_FLAG) $(LINK2)
 LFLAGSDLL  = -Tpd -c -m -L$(LIB) $(DEBUG_FLAG) $(LINK2)
 CFLAGS = $(CFLAGS) -d -RT- -k- -Oi $(HEADERS) -f-
-!endif
 
 CC1 = -c
 CC2 = -o
@@ -583,8 +526,6 @@ CCARG = +$(OBJDIR)\bcc.cfg
 .cpp.obj:
 	$(CC) $(CCARG) $(CC1) $(CC2)$@ $*.cpp
 
-!if ($(OSTYPE)==DOS16)
-!else # win32:
 vimmain = \
 	$(OBJDIR)\os_w32exe.obj
 !if ("$(VIMDLL)"=="yes")
@@ -594,7 +535,6 @@ vimwinmain = \
 vimwinmain = \
 	$(OBJDIR)\os_w32exe.obj
 !endif
-!endif
 
 vimobj =  \
 	$(OBJDIR)\blowfish.obj \
@@ -720,13 +660,8 @@ vimobj = $(vimobj) \
 	$(OBJDIR)\gui_w32.obj
 !endif
 
-!if ($(OSTYPE)==WIN32)
 vimobj = $(vimobj) \
 	$(OBJDIR)\os_win32.obj $(OBJDIR)\os_mswin.obj $(OBJDIR)\winclip.obj
-!elif ($(OSTYPE)==DOS16)
-vimobj = $(vimobj) \
-	$(OBJDIR)\os_msdos.obj
-!endif
 # Blab what we are going to do:
 MSG = Compiling $(OSTYPE) $(TARGET) $(OLETARGET), with:
 !if ("$(GUI)"=="yes")
@@ -818,14 +753,10 @@ MSG = $(MSG) Align=$(ALIGNARG)
 
 !message $(MSG)
 
-!if ($(OSTYPE)==DOS16)
-TARGETS = $(TARGET)
-!else
 !if ("$(VIMDLL)"=="yes")
 TARGETS = $(DLLTARGET)
 !endif
 TARGETS = $(TARGETS) $(TARGET)
-!endif
 
 # Targets:
 all: vim vimrun.exe install.exe xxd uninstal.exe GvimExt/gvimext.dll
@@ -851,18 +782,10 @@ GvimExt/gvimext.dll: GvimExt/gvimext.cpp GvimExt/gvimext.rc GvimExt/gvimext.h
 	cd ..
 
 install.exe: dosinst.c $(OBJDIR)\bcc.cfg
-!if ($(OSTYPE)==WIN32)
 	$(CC) $(CCARG) -WC -DWIN32 -einstall dosinst.c
-!else
-	$(CC) $(CCARG) -WC -einstall dosinst.c
-!endif
 
 uninstal.exe: uninstal.c $(OBJDIR)\bcc.cfg
-!if ($(OSTYPE)==WIN32)
 	$(CC) $(CCARG) -WC -DWIN32 -O2 -euninstal uninstal.c
-!else
-	$(CC) $(CCARG) -WC -O2 -euninstal uninstal.c
-!endif
 
 clean:
 !if "$(OS)" == "Windows_NT"
@@ -923,10 +846,7 @@ $(DLLTARGET): $(OBJDIR) $(vimdllobj)
 	cg32.lib+
 !endif
 # $(OSTYPE)==WIN32 causes os_mswin.c compilation. FEAT_SHORTCUT in it needs OLE
-!if ("$(OLE)"=="yes" || $(OSTYPE)==WIN32)
 	ole2w32.lib +
-!endif
-!if ($(OSTYPE)==WIN32)
 	import32.lib+
 !ifdef LUA
 	$(LUA_LIB_FLAG)lua.lib+
@@ -955,9 +875,6 @@ $(DLLTARGET): $(OBJDIR) $(vimdllobj)
 	cw32.lib
 !endif
 	vim.def
-!else
-	cl.lib
-!endif
 |
 
 !if ("$(VIMDLL)"=="yes")
@@ -974,14 +891,11 @@ $(TARGET): $(OBJDIR) $(vimobj) $(OBJDIR)\$(RESFILE)
 	$(vimobj)
 !endif
 	$<,$*
-!if ($(OSTYPE)==WIN32)
 !if ("$(CODEGUARD)"=="yes")
 	cg32.lib+
 !endif
 # $(OSTYPE)==WIN32 causes os_mswin.c compilation. FEAT_SHORTCUT in it needs OLE
-!if ("$(OLE)"=="yes" || $(OSTYPE)==WIN32)
 	ole2w32.lib +
-!endif
 	import32.lib+
 !ifdef LUA
 	$(LUA_LIB_FLAG)lua.lib+
@@ -1011,9 +925,6 @@ $(TARGET): $(OBJDIR) $(vimobj) $(OBJDIR)\$(RESFILE)
 !endif
 
 	$(OBJDIR)\$(RESFILE)
-!else
-	emu.lib + cl.lib
-!endif
 |
 
 test:
diff --git a/src/Make_djg.mak b/src/Make_djg.mak
deleted file mode 100644
index 5b77b5c16f..0000000000
--- a/src/Make_djg.mak
+++ /dev/null
@@ -1,112 +0,0 @@
-#
-# Makefile for VIM on MSDOS, using DJGPP 2.0
-#
-# NOTE: THIS IS OLD AND PROBABLY NO LONGER WORKS.
-#
-
-#>>>>> choose options:
-
-### See feature.h for a list of optionals.
-### Any other defines can be included here.
-
-DEFINES =
-
-#>>>>> name of the compiler and linker, name of lib directory
-CC = gcc
-
-#>>>>> end of choices
-###########################################################################
-
-INCL = vim.h globals.h option.h keymap.h macros.h ascii.h term.h os_msdos.h structs.h
-CFLAGS = -O2 -DMSDOS -Iproto $(DEFINES) -Wall -Dinterrupt= -Dfar= -DMAXMEM=512 -D_NAIVE_DOS_REGS
-
-OBJ = \
-	obj/blowfish.o \
-	obj/buffer.o \
-	obj/charset.o \
-	obj/crypt.o \
-	obj/crypt_zip.o \
-	obj/diff.o \
-	obj/digraph.o \
-	obj/edit.o \
-	obj/eval.o \
-	obj/ex_cmds.o \
-	obj/ex_cmds2.o \
-	obj/ex_docmd.o \
-	obj/ex_eval.o \
-	obj/ex_getln.o \
-	obj/fileio.o \
-	obj/fold.o \
-	obj/getchar.o \
-	obj/hardcopy.o \
-	obj/hashtab.o \
-	obj/main.o \
-	obj/mark.o \
-	obj/memfile.o \
-	obj/memline.o \
-	obj/menu.o \
-	obj/message.o \
-	obj/misc1.o \
-	obj/misc2.o \
-	obj/move.o \
-	obj/mbyte.o \
-	obj/normal.o \
-	obj/ops.o \
-	obj/option.o \
-	obj/os_msdos.o \
-	obj/popupmnu.o \
-	obj/quickfix.o \
-	obj/regexp.o \
-	obj/screen.o \
-	obj/search.o \
-	obj/sha256.o \
-	obj/spell.o \
-	obj/syntax.o \
-	obj/tag.o \
-	obj/term.o \
-	obj/ui.o \
-	obj/undo.o \
-	obj/window.o \
-	$(TERMLIB)
-
-all: vim.exe install.exe uninstal.exe xxd/xxd.exe
-
-# version.c is compiled each time, so that it sets the build time.
-vim.exe: obj $(OBJ) version.c version.h
-	$(CC) $(CFLAGS) -s -o vim.exe version.c $(OBJ) -lpc
-
-install.exe: dosinst.c
-	$(CC) $(CFLAGS) -s -o install.exe dosinst.c -lpc
-
-uninstal.exe: uninstal.c
-	$(CC) $(CFLAGS) -s -o uninstal.exe uninstal.c -lpc
-
-# This requires GNU make.
-xxd/xxd.exe: xxd/xxd.c
-	$(MAKE) --directory=xxd -f Make_djg.mak
-
-obj:
-	mkdir obj
-
-tags:
-	command /c ctags *.c $(INCL) ex_cmds.h
-
-clean:
-	-del obj\*.o
-	-rmdir obj
-	-del vim.exe
-	-del install.exe
-	-del xxd\xxd.exe
-	-del testdir\*.out
-
-# This requires GNU make.
-test:
-	$(MAKE) --directory=testdir -f Make_dos.mak
-
-###########################################################################
-
-obj/%.o: %.c obj $(INCL)
-	$(CC) -c $(CFLAGS) -o $@ $<
-
-# Extra dependency (there are actually many more...)
-obj/ex_docmd.o:	ex_cmds.h
diff --git a/src/Makefile b/src/Makefile
index 13c7bc6041..1326cf06ef 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -908,7 +908,7 @@ SANITIZER_LIBS = $(SANITIZER_CFLAGS)
 ### after changing this, you need to do "make reconfig".
 #CONF_TERM_LIB = --with-tlib=ncurses
 
-### For GCC on MSDOS, the ".exe" suffix will be added.
+### For GCC on MS-Windows, the ".exe" suffix will be added.
 #EXEEXT = .exe
 #LNKEXT = .exe
 
@@ -1715,7 +1715,7 @@ PRO_AUTO = \
 # Resources used for the Mac are in one directory.
 RSRC_DIR = os_mac_rsrc
 
-PRO_MANUAL = os_amiga.pro os_msdos.pro os_win32.pro \
+PRO_MANUAL = os_amiga.pro os_win32.pro \
 	os_mswin.pro winclip.pro os_beos.pro os_vms.pro $(PERL_PRO)
 
 # Default target is making the executable and tools
@@ -1836,7 +1836,7 @@ update-po:
 # Generate function prototypes.  This is not needed to compile vim, but if
 # you want to use it, cproto is out there on the net somewhere -- Webb
 #
-# When generating os_amiga.pro, os_msdos.pro and os_win32.pro there will be a
+# When generating os_amiga.pro and os_win32.pro there will be a
 # few include files that can not be found, that's OK.
 
 proto: $(PRO_AUTO) $(PRO_MANUAL)
@@ -1864,10 +1864,6 @@ os_amiga.pro: os_amiga.c
 	$(CPROTO) -DAMIGA -UHAVE_CONFIG_H -DBPTR=char* $< > proto/$@
 	echo "/* vim: set ft=c : */" >> proto/$@
 
-os_msdos.pro: os_msdos.c
-	$(CPROTO) -DMSDOS -UHAVE_CONFIG_H $< > proto/$@
-	echo "/* vim: set ft=c : */" >> proto/$@
-
 os_win32.pro: os_win32.c
 	$(CPROTO) -DWIN32 -UHAVE_CONFIG_H $< > proto/$@
 	echo "/* vim: set ft=c : */" >> proto/$@
diff --git a/src/blowfish.c b/src/blowfish.c
index d24aa2c745..37d5a554c1 100644
--- a/src/blowfish.c
+++ b/src/blowfish.c
@@ -34,7 +34,7 @@ typedef union {
     char_u   uc[8];
 } block8;
 
-#if defined(WIN3264) || defined(DOS32)
+#if defined(WIN3264)
   /* MS-Windows is always little endian */
 #else
 # ifdef HAVE_CONFIG_H
diff --git a/src/buffer.c b/src/buffer.c
index 9f61eefd1c..89dedc58f9 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -541,9 +541,7 @@ buf_clear_file(buf_T *buf)
 {
     buf->b_ml.ml_line_count = 1;
     unchanged(buf, TRUE);
-#ifndef SHORT_FNAME
     buf->b_shortname = FALSE;
-#endif
     buf->b_p_eol = TRUE;
     buf->b_start_eol = TRUE;
 #ifdef FEAT_MBYTE
@@ -2911,9 +2909,7 @@ setfname(
     }
 #endif
 
-#ifndef SHORT_FNAME
     buf->b_shortname = FALSE;
-#endif
 
     buf_name_changed(buf);
     return OK;
@@ -4480,7 +4476,7 @@ fix_fname(char_u  *fname)
 # ifdef BACKSLASH_IN_FILENAME
 	    || strstr((char *)fname, "\\\\") != NULL
 # endif
-# if defined(MSWIN) || defined(DJGPP)
+# if defined(MSWIN)
 	    || vim_strchr(fname, '~') != NULL
 # endif
 	    )
diff --git a/src/diff.c b/src/diff.c
index db1d066f96..be7e38ccbe 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -29,7 +29,7 @@ static int	diff_flags = DIFF_FILLER;
 
 static int diff_a_works = MAYBE; /* TRUE when "diff -a" works, FALSE when it
 				    doesn't work, MAYBE when not checked yet */
-#if defined(MSWIN) || defined(MSDOS)
+#if defined(MSWIN)
 static int diff_bin_works = MAYBE; /* TRUE when "diff --binary" works, FALSE
 				      when it doesn't work, MAYBE when not
 				      checked yet */
@@ -733,7 +733,7 @@ ex_diffupdate(
 	    break;
 #endif
 
-#if defined(MSWIN) || defined(MSDOS)
+#if defined(MSWIN)
 	/* If the "-a" argument works, also check if "--binary" works. */
 	if (ok && diff_a_works == MAYBE && diff_bin_works == MAYBE)
 	{
@@ -764,7 +764,7 @@ ex_diffupdate(
 	    EMSG(_("E810: Cannot read or write temp files"));
 	EMSG(_("E97: Cannot create diffs"));
 	diff_a_works = MAYBE;
-#if defined(MSWIN) || defined(MSDOS)
+#if defined(MSWIN)
 	diff_bin_works = MAYBE;
 #endif
 	goto theend;
@@ -845,7 +845,7 @@ diff_file(
 	     * non-zero when differences have been found. */
 	    vim_snprintf((char *)cmd, len, "diff %s%s%s%s%s %s",
 		    diff_a_works == FALSE ? "" : "-a ",
-#if defined(MSWIN) || defined(MSDOS)
+#if defined(MSWIN)
 		    diff_bin_works == TRUE ? "--binary " : "",
 #else
 		    "",
diff --git a/src/digraph.c b/src/digraph.c
index 2195d644a4..5dab51b20f 100644
--- a/src/digraph.c
+++ b/src/digraph.c
@@ -39,74 +39,7 @@ static garray_T	user_digraphs = {0, 0, (int)sizeof(digr_T), 10, NULL};
  * compilers cannot handle them (Amiga SAS/C is the most picky one).
  */
 static digr_T digraphdefault[] =
-#if defined(MSDOS)
-	/*
-	 * MSDOS digraphs.
-	 */
-       {{'C', ',', 128},	/* ~@ XX */
-	{'u', '"', 129},	/* � */
-	{'e', '\'', 130},	/* � */
-	{'a', '^', 131},	/* � */
-	{'a', '"', 132},	/* � */
-	{'a', '`', 133},	/* � */
-	{'a', '@', 134},	/* � */
-	{'c', ',', 135},	/* ~G XX */
-	{'e', '^', 136},	/* ~H XX */
-	{'e', '"', 137},	/* � */
-	{'e', '`', 138},	/* � */
-	{'i', '"', 139},	/* � */
-	{'i', '^', 140},	/* � */
-	{'i', '`', 141},	/* � */
-	{'A', '"', 142},	/* ~N XX */
-	{'A', '@', 143},	/* � */
-	{'E', '\'', 144},	/* � */
-	{'a', 'e', 145},	/* � */
-	{'A', 'E', 146},	/* � */
-	{'o', '^', 147},	/* � */
-	{'o', '"', 148},	/* � */
-	{'o', '`', 149},	/* � */
-	{'u', '^', 150},	/* � */
-	{'u', '`', 151},	/* � */
-	{'y', '"', 152},	/* � */
-	{'O', '"', 153},	/* � */
-	{'U', '"', 154},	/* � */
-	{'c', '|', 155},	/* � */
-	{'$', '$', 156},	/* � */
-	{'Y', '-', 157},	/* ~] XX */
-	{'P', 't', 158},	/* � */
-	{'f', 'f', 159},	/* � */
-	{'a', '\'', 160},	/* � */
-	{'i', '\'', 161},	/* � */
-	{'o', '\'', 162},	/* � */
-	{'u', '\'', 163},	/* x XX */
-	{'n', '~', 164},	/* � */
-	{'N', '~', 165},	/* � */
-	{'a', 'a', 166},	/* � */
-	{'o', 'o', 167},	/* � */
-	{'~', '?', 168},	/* � */
-	{'-', 'a', 169},	/* � */
-	{'a', '-', 170},	/* � */
-	{'1', '2', 171},	/* � */
-	{'1', '4', 172},	/* � */
-	{'~', '!', 173},	/* � */
-	{'<', '<', 174},	/* � */
-	{'>', '>', 175},	/* � */
-
-	{'s', 's', 225},	/* � */
-	{'j', 'u', 230},	/* � */
-	{'o', '/', 237},	/* � */
-	{'+', '-', 241},	/* � */
-	{'>', '=', 242},	/* � */
-	{'<', '=', 243},	/* � */
-	{':', '-', 246},	/* � */
-	{'~', '~', 247},	/* � */
-	{'~', 'o', 248},	/* � */
-	{'2', '2', 253},	/* � */
-	{NUL, NUL, NUL}
-	};
-
-#else	/* !MSDOS */
-# ifdef __MINT__
+#ifdef __MINT__
 
 	/*
 	 * ATARI digraphs
@@ -171,8 +104,8 @@ static digr_T digraphdefault[] =
 	{NUL, NUL, NUL}
 	};
 
-# else	/* !__MINT__ */
-#  ifdef HPUX_DIGRAPHS
+#else	/* !__MINT__ */
+# ifdef HPUX_DIGRAPHS
 
 	/*
 	 * different HPUX digraphs
@@ -275,9 +208,9 @@ static digr_T digraphdefault[] =
 	{NUL, NUL, NUL}
 	};
 
-#  else	/* !HPUX_DIGRAPHS */
+# else	/* !HPUX_DIGRAPHS */
 
-#   ifdef EBCDIC
+#  ifdef EBCDIC
 
 	/*
 	 * EBCDIC - ISO digraphs
@@ -387,8 +320,8 @@ static digr_T digraphdefault[] =
 	{NUL, NUL, NUL}
 	};
 
-#   else
-#    if defined(MACOS) && !defined(FEAT_MBYTE)
+#  else
+#   if defined(MACOS) && !defined(FEAT_MBYTE)
 
 	/*
 	 * Macintosh digraphs
@@ -516,9 +449,9 @@ static digr_T digraphdefault[] =
 	{NUL, NUL, NUL}
 	};
 
-#    else	/* !MACOS */
+#   else	/* !MACOS */
 
-#     ifdef OLD_DIGRAPHS
+#    ifdef OLD_DIGRAPHS
 
 	/*
 	 * digraphs compatible with Vim 5.x
@@ -625,7 +558,7 @@ static digr_T digraphdefault[] =
 	{'y', '"', 255},	/* x XX */
 	{NUL, NUL, NUL}
 	};
-#     else /* OLD_DIGRAPHS */
+#    else /* OLD_DIGRAPHS */
 
 	/*
 	 * digraphs for Unicode from RFC1345
@@ -2001,13 +1934,12 @@ static digr_T digraphdefault[] =
 	{NUL, NUL, NUL}
        };
 
-#     endif /* OLD_DIGRAPHS */
+#    endif /* OLD_DIGRAPHS */
 
-#    endif /* Macintosh */
-#   endif /* EBCDIC */
-#  endif    /* !HPUX_DIGRAPHS */
-# endif	/* !__MINT__ */
-#endif	/* !MSDOS */
+#   endif /* Macintosh */
+#  endif /* EBCDIC */
+# endif    /* !HPUX_DIGRAPHS */