diff --git a/src/Make_vms.mms b/src/Make_vms.mms
index 80872ad..44c4d21 100644
--- a/src/Make_vms.mms
+++ b/src/Make_vms.mms
@@ -2,7 +2,7 @@
 # Makefile for Vim on OpenVMS
 #
 # Maintainer:   Zoltan Arpadffy <arpadffy@polarhome.com>
-# Last change:  2017 Nov 18
+# Last change:  2019 Jan 17
 #
 # This has script been tested on VMS 6.2 to 8.2 on DEC Alpha, VAX and IA64
 # with MMS and MMK
@@ -43,6 +43,8 @@
 # GUI with GTK
 # If you have GTK installed you might want to enable this option.
 # NOTE: you will need to properly define GTK_DIR below
+# NOTE: since Vim 7.3 GTK 2+ is used that is not ported to VMS, 
+#       therefore this option should not be used  
 # GTK = YES
 
 # GUI/Motif with XPM
@@ -164,7 +166,7 @@
 # unique on every system - logicals are not accepted
 # please note: directory should end with . in order to /trans=conc work
 # This value for GTK_DIR is an example.
-GTK_DIR  = $1$DGA104:[USERS.ZAY.WORK.GTK1210.]
+GTK_DIR  = DKA0:[WORK.GTK1210.]
 DEFS     = "HAVE_CONFIG_H","FEAT_GUI_GTK"
 LIBS     = ,OS_VMS_GTK.OPT/OPT
 GUI_FLAG = /name=(as_is,short)/float=ieee/ieee=denorm
@@ -178,8 +180,10 @@
 MOTIF	 = YES
 .IFDEF XPM
 DEFS     = "HAVE_CONFIG_H","FEAT_GUI_MOTIF","HAVE_XPM"
+XPM_INC  = ,[.xpm.include]
 .ELSE
 DEFS     = "HAVE_CONFIG_H","FEAT_GUI_MOTIF"
+XPM_INC  = 
 .ENDIF
 LIBS     = ,OS_VMS_MOTIF.OPT/OPT
 GUI_FLAG =
@@ -269,6 +273,11 @@
 ICONV_DEF = ,"USE_ICONV"
 .ENDIF
 
+# XDIFF related setup.
+XDIFF_SRC = xdiffi.c,xemit.c,xprepare.c,xutils.c,xhistogram.c,xpatience.c
+XDIFF_OBJ = xdiffi.obj,xemit.obj,xprepare.obj,xutils.obj,xhistogram.obj,xpatience.obj 
+XDIFF_INC = ,[.xdiff]
+
 ######################################################################
 # End of configuration section.
 # Please, do not change anything below without programming experience.
@@ -283,18 +292,22 @@
 .SUFFIXES : .obj .c
 
 ALL_CFLAGS = /def=($(MODEL_DEF)$(DEFS)$(DEBUG_DEF)$(PERL_DEF)$(PYTHON_DEF) -
- $(TCL_DEF)$(RUBY_DEF)$(XIM_DEF)$(HANGULIN_DEF)$(TAG_DEF)$(MZSCH_DEF)$(ICONV_DEF)) -
+ $(TCL_DEF)$(RUBY_DEF)$(XIM_DEF)$(HANGULIN_DEF)$(TAG_DEF)$(MZSCH_DEF) -
+ $(ICONV_DEF)) -
  $(CFLAGS)$(GUI_FLAG) -
- /include=($(C_INC)$(GUI_INC_DIR)$(GUI_INC)$(PERL_INC)$(PYTHON_INC)$(TCL_INC))
+ /include=($(C_INC)$(GUI_INC_DIR)$(GUI_INC)$(PERL_INC)$(PYTHON_INC) -
+ $(TCL_INC)$(XDIFF_INC)$(XPM_INC))
 
 # CFLAGS displayed in :ver information
 # It is specially formated for correct display of unix like includes
 # as $(GUI_INC) - replaced with $(GUI_INC_VER)
 # Otherwise should not be any other difference.
 ALL_CFLAGS_VER = /def=($(MODEL_DEF)$(DEFS)$(DEBUG_DEF)$(PERL_DEF)$(PYTHON_DEF) -
- $(TCL_DEF)$(RUBY_DEF)$(XIM_DEF)$(HANGULIN_DEF)$(TAG_DEF)$(MZSCH_DEF)$(ICONV_DEF)) -
+ $(TCL_DEF)$(RUBY_DEF)$(XIM_DEF)$(HANGULIN_DEF)$(TAG_DEF)$(MZSCH_DEF) - 
+ $(ICONV_DEF)) -
  $(CFLAGS)$(GUI_FLAG) -
- /include=($(C_INC)$(GUI_INC_DIR)$(GUI_INC_VER)$(PERL_INC)$(PYTHON_INC)$(TCL_INC))
+ /include=($(C_INC)$(GUI_INC_DIR)$(GUI_INC_VER)$(PERL_INC)$(PYTHON_INC) -
+ $(TCL_INC)$(XDIFF_INC)$(XPM_INC))
 
 ALL_LIBS = $(LIBS) $(GUI_LIB_DIR) $(GUI_LIB) \
 	   $(PERL_LIB) $(PYTHON_LIB) $(TCL_LIB) $(RUBY_LIB)
@@ -303,21 +316,21 @@
 	ex_cmds.c ex_cmds2.c ex_docmd.c ex_eval.c ex_getln.c if_cscope.c if_xcmdsrv.c farsi.c fileio.c fold.c getchar.c \
 	hardcopy.c hashtab.c json.c list.c main.c mark.c menu.c mbyte.c memfile.c memline.c message.c misc1.c \
 	misc2.c move.c normal.c ops.c option.c popupmnu.c quickfix.c regexp.c search.c sha256.c sign.c \
-	spell.c spellfile.c syntax.c tag.c term.c termlib.c ui.c undo.c userfunc.c version.c screen.c \
+ 	spell.c spellfile.c syntax.c tag.c term.c termlib.c textprop.c ui.c undo.c userfunc.c version.c screen.c \
 	window.c os_unix.c os_vms.c pathdef.c \
 	$(GUI_SRC) $(PERL_SRC) $(PYTHON_SRC) $(TCL_SRC) \
-	$(RUBY_SRC) $(HANGULIN_SRC) $(MZSCH_SRC)
+ 	$(RUBY_SRC) $(HANGULIN_SRC) $(MZSCH_SRC) $(XDIFF_SRC)
 
 OBJ = 	arabic.obj beval.obj blowfish.obj buffer.obj charset.obj crypt.obj crypt_zip.obj dict.obj diff.obj digraph.obj edit.obj eval.obj \
 	evalfunc.obj ex_cmds.obj ex_cmds2.obj ex_docmd.obj ex_eval.obj ex_getln.obj if_cscope.obj \
 	if_xcmdsrv.obj farsi.obj fileio.obj fold.obj getchar.obj hardcopy.obj hashtab.obj json.obj list.obj main.obj mark.obj \
 	menu.obj memfile.obj memline.obj message.obj misc1.obj misc2.obj \
 	move.obj mbyte.obj normal.obj ops.obj option.obj popupmnu.obj quickfix.obj \
-	regexp.obj search.obj sha256.obj sign.obj spell.obj spellfile.obj syntax.obj tag.obj term.obj termlib.obj \
+ 	regexp.obj search.obj sha256.obj sign.obj spell.obj spellfile.obj syntax.obj tag.obj term.obj termlib.obj textprop.obj \
 	ui.obj undo.obj userfunc.obj screen.obj version.obj window.obj os_unix.obj \
 	os_vms.obj pathdef.obj if_mzsch.obj\
 	$(GUI_OBJ) $(PERL_OBJ) $(PYTHON_OBJ) $(TCL_OBJ) \
-	$(RUBY_OBJ) $(HANGULIN_OBJ) $(MZSCH_OBJ)
+ 	$(RUBY_OBJ) $(HANGULIN_OBJ) $(MZSCH_OBJ) $(XDIFF_OBJ)
 
 # Default target is making the executable
 all : [.auto]config.h mmk_compat motif_env gtk_env perl_env python_env tcl_env ruby_env $(TARGET)
@@ -705,6 +718,10 @@
  ascii.h keymap.h term.h macros.h structs.h regexp.h gui.h beval.h \
  [.proto]gui_beval.pro option.h ex_cmds.h proto.h globals.h farsi.h \
  arabic.h
+textprop.obj : textprop.c vim.h [.auto]config.h feature.h os_unix.h   \
+ ascii.h keymap.h term.h macros.h structs.h regexp.h gui.h beval.h \
+ [.proto]gui_beval.pro option.h ex_cmds.h proto.h globals.h farsi.h \
+ arabic.h
 ui.obj : ui.c vim.h [.auto]config.h feature.h os_unix.h   \
  ascii.h keymap.h term.h macros.h structs.h regexp.h gui.h beval.h \
  [.proto]gui_beval.pro option.h ex_cmds.h proto.h globals.h farsi.h \
@@ -828,5 +845,11 @@
  ascii.h keymap.h term.h macros.h structs.h regexp.h \
  gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \
  globals.h farsi.h arabic.h version.h
-gui_xmdlg.obj : gui_xmdlg.c
-gui_xmebw.obj : gui_xmebw.c
+gui_xmdlg.obj : gui_xmdlg.c [.auto]config.h vim.h feature.h os_unix.h
+gui_xmebw.obj : gui_xmebw.c [.auto]config.h vim.h feature.h os_unix.h
+xdiffi.obj : [.xdiff]xdiffi.c [.xdiff]xinclude.h [.auto]config.h vim.h feature.h os_unix.h
+xemit.obj : [.xdiff]xemit.c [.xdiff]xinclude.h [.auto]config.h vim.h feature.h os_unix.h
+xprepare.obj : [.xdiff]xprepare.c [.xdiff]xinclude.h [.auto]config.h vim.h feature.h os_unix.h
+xutils.obj : [.xdiff]xutils.c [.xdiff]xinclude.h [.auto]config.h vim.h feature.h os_unix.h
+xhistogram.obj : [.xdiff]xhistogram.c [.xdiff]xinclude.h [.auto]config.h vim.h feature.h os_unix.h
+xpatience.obj : [.xdiff]xpatience.c [.xdiff]xinclude.h [.auto]config.h vim.h feature.h os_unix.h	
diff --git a/src/eval.c b/src/eval.c
index b31ed35..d8a9e43 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -7414,7 +7414,7 @@
     {
 	case VAR_NUMBER:
 	    vim_snprintf((char *)buf, NUMBUFLEN, "%lld",
-					    (long long)varp->vval.v_number);
+					    (long_long_T)varp->vval.v_number);
 	    return buf;
 	case VAR_FUNC:
 	case VAR_PARTIAL:
diff --git a/src/feature.h b/src/feature.h
index d5a6853..59fcf78 100644
--- a/src/feature.h
+++ b/src/feature.h
@@ -380,7 +380,7 @@
 /*
  * +timers		timer_start()
  */
-#if defined(FEAT_RELTIME) && (defined(UNIX) || defined(WIN32))
+#if defined(FEAT_RELTIME) && (defined(UNIX) || defined(WIN32) || defined(VMS) )
 # define FEAT_TIMERS
 #endif
 
@@ -1306,7 +1306,7 @@
  * +balloon_eval_term	Allow balloon expression evaluation in the terminal.
  */
 #if defined(FEAT_HUGE) && defined(FEAT_TIMERS) && \
-	(defined(UNIX) || (defined(WIN32) && !defined(FEAT_GUI_W32)))
+	(defined(UNIX) || defined(VMS) || (defined(WIN32) && !defined(FEAT_GUI_W32)))
 # define FEAT_BEVAL_TERM
 #endif
 
diff --git a/src/fileio.c b/src/fileio.c
index 0608625..f6a7995 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -5334,14 +5334,14 @@
 	*p++ = ' ';
     if (shortmess(SHM_LINES))
 	vim_snprintf((char *)p, IOSIZE - (p - IObuff),
-		"%ldL, %lldC", lnum, (long long)nchars);
+		"%ldL, %lldC", lnum, (long_long_T)nchars);
     else
     {
 	sprintf((char *)p, NGETTEXT("%ld line, ", "%ld lines, ", lnum), lnum);
 	p += STRLEN(p);
 	vim_snprintf((char *)p, IOSIZE - (p - IObuff),
 		NGETTEXT("%lld character", "%lld characters", nchars),
-		(long long)nchars);
+		(long_long_T)nchars);
     }
 }
 
diff --git a/src/gui_motif.c b/src/gui_motif.c
index 3f35409..6eb618f 100644
--- a/src/gui_motif.c
+++ b/src/gui_motif.c
@@ -34,9 +34,12 @@
 #include <X11/Xatom.h>
 #include <X11/StringDefs.h>
 #include <X11/Intrinsic.h>
-
 #ifdef HAVE_X11_XPM_H
-# include <X11/xpm.h>
+# if defined(VMS)
+#  include <xpm.h>
+# else
+#  include <X11/xpm.h>
+# endif
 #else
 # ifdef HAVE_XM_XPMP_H
 #  include <Xm/XpmP.h>
diff --git a/src/gui_x11.c b/src/gui_x11.c
index 9d8ea7e..1c55805 100644
--- a/src/gui_x11.c
+++ b/src/gui_x11.c
@@ -30,7 +30,11 @@
 # include <Xm/XpmP.h>
 #else
 # ifdef HAVE_X11_XPM_H
-#  include <X11/xpm.h>
+#  ifdef VMS
+#   include <xpm.h>
+#  else
+#   include <X11/xpm.h>
+#  endif
 # endif
 #endif
 
diff --git a/src/gui_xmebw.c b/src/gui_xmebw.c
index b09b1e6..cd60794 100644
--- a/src/gui_xmebw.c
+++ b/src/gui_xmebw.c
@@ -35,7 +35,13 @@
 # include <Xm/XpmP.h>
 # define UNHIGHLIGHTT
 #else
-# include <X11/xpm.h>
+# ifdef HAVE_X11_XPM_H
+#  ifdef VMS
+#   include <xpm.h>
+#  else
+#   include <X11/xpm.h>
+#  endif
+# endif
 #endif
 #include <Xm/ManagerP.h>
 #include <Xm/Display.h>
diff --git a/src/json.c b/src/json.c
index 11bb048..ff66411 100644
--- a/src/json.c
+++ b/src/json.c
@@ -218,7 +218,7 @@
 
 	case VAR_NUMBER:
 	    vim_snprintf((char *)numbuf, NUMBUFLEN, "%lld",
-						(long long)val->vval.v_number);
+						(long_long_T)val->vval.v_number);
 	    ga_concat(gap, numbuf);
 	    break;
 
diff --git a/src/ops.c b/src/ops.c
index 8a106eb..3818b68 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -6036,16 +6036,16 @@
 	}
 	else if (pre == 0)
 	    vim_snprintf((char *)buf2, NUMBUFLEN, "%llu",
-							(long long unsigned)n);
+							(long_long_u_T)n);
 	else if (pre == '0')
 	    vim_snprintf((char *)buf2, NUMBUFLEN, "%llo",
-							(long long unsigned)n);
+							(long_long_u_T)n);
 	else if (pre && hexupper)
 	    vim_snprintf((char *)buf2, NUMBUFLEN, "%llX",
-							(long long unsigned)n);
+							(long_long_u_T)n);
 	else
 	    vim_snprintf((char *)buf2, NUMBUFLEN, "%llx",
-							(long long unsigned)n);
+							(long_long_u_T)n);
 	length -= (int)STRLEN(buf2);
 
 	/*
@@ -7558,21 +7558,21 @@
 			    _("Selected %s%ld of %ld Lines; %lld of %lld Words; %lld of %lld Bytes"),
 			    buf1, line_count_selected,
 			    (long)curbuf->b_ml.ml_line_count,
-			    (long long)word_count_cursor,
-			    (long long)word_count,
-			    (long long)byte_count_cursor,
-			    (long long)byte_count);
+			    (long_long_T)word_count_cursor,
+			    (long_long_T)word_count,
+			    (long_long_T)byte_count_cursor,
+			    (long_long_T)byte_count);
 		else
 		    vim_snprintf((char *)IObuff, IOSIZE,
 			    _("Selected %s%ld of %ld Lines; %lld of %lld Words; %lld of %lld Chars; %lld of %lld Bytes"),
 			    buf1, line_count_selected,
 			    (long)curbuf->b_ml.ml_line_count,
-			    (long long)word_count_cursor,
-			    (long long)word_count,
-			    (long long)char_count_cursor,
-			    (long long)char_count,
-			    (long long)byte_count_cursor,
-			    (long long)byte_count);
+			    (long_long_T)word_count_cursor,
+			    (long_long_T)word_count,
+			    (long_long_T)char_count_cursor,
+			    (long_long_T)char_count,
+			    (long_long_T)byte_count_cursor,
+			    (long_long_T)byte_count);
 	    }
 	    else
 	    {
@@ -7590,17 +7590,17 @@
 			(char *)buf1, (char *)buf2,
 			(long)curwin->w_cursor.lnum,
 			(long)curbuf->b_ml.ml_line_count,
-			(long long)word_count_cursor, (long long)word_count,
-			(long long)byte_count_cursor, (long long)byte_count);
+			(long_long_T)word_count_cursor, (long_long_T)word_count,
+			(long_long_T)byte_count_cursor, (long_long_T)byte_count);
 		else
 		    vim_snprintf((char *)IObuff, IOSIZE,
 			_("Col %s of %s; Line %ld of %ld; Word %lld of %lld; Char %lld of %lld; Byte %lld of %lld"),
 			(char *)buf1, (char *)buf2,
 			(long)curwin->w_cursor.lnum,
 			(long)curbuf->b_ml.ml_line_count,
-			(long long)word_count_cursor, (long long)word_count,
-			(long long)char_count_cursor, (long long)char_count,
-			(long long)byte_count_cursor, (long long)byte_count);
+			(long_long_T)word_count_cursor, (long_long_T)word_count,
+			(long_long_T)char_count_cursor, (long_long_T)char_count,
+			(long_long_T)byte_count_cursor, (long_long_T)byte_count);
 	    }
 	}
 
@@ -7608,7 +7608,7 @@
 	bom_count = bomb_size();
 	if (bom_count > 0)
 	    vim_snprintf((char *)IObuff + STRLEN(IObuff), IOSIZE,
-				   _("(+%lld for BOM)"), (long long)bom_count);
+				   _("(+%lld for BOM)"), (long_long_T)bom_count);
 #endif
 	if (dict == NULL)
 	{
diff --git a/src/os_vms_conf.h b/src/os_vms_conf.h
index 9aa7526..6bc6efb 100644
--- a/src/os_vms_conf.h
+++ b/src/os_vms_conf.h
@@ -6,6 +6,7 @@
 #define BINARY_FILE_IO		    /* Use binary fileio */
 #define USE_GETCWD
 #define USE_SYSTEM
+#define XPMATTRIBUTES_TYPE XpmAttributes
 
 /* Define when terminfo support found */
 #undef TERMINFO
@@ -23,7 +24,7 @@
 #define HAVE_DATE_TIME
 
 /* Defined to the size of an int */
-#define VIM_SIZEOF_INT 4
+#define VIM_SIZEOF_INT  4 
 
 /* #undef USEBCOPY */
 #define USEMEMMOVE
@@ -117,8 +118,11 @@
 #define HAVE_SETJMP_H
 #define HAVE_MATH_H
 #define HAVE_FLOAT_FUNCS
+#define HAVE_GETTIMEOFDAY
+#define HAVE_PWD_H
+#define HAVE_NETDB_H
+#define	HAVE_DIRENT_H
 
-#undef	HAVE_DIRENT_H
 #undef	HAVE_SYS_NDIR_H
 #undef	HAVE_SYS_DIR_H
 #undef	HAVE_NDIR_H
@@ -138,7 +142,6 @@
 #undef	HAVE_LIBC_H
 #undef	HAVE_SYS_STATFS_H
 #undef	HAVE_SYS_POLL_H
-#undef	HAVE_PWD_H
 #undef  HAVE_FCHDIR
 #undef  HAVE_LSTAT
 
@@ -150,13 +153,16 @@
 #undef  HAVE_STRINGS_H
 #undef  HAVE_SIGSETJMP
 #undef  HAVE_ISNAN
-#else
+#define HAVE_NO_LONG_LONG
+#define VIM_SIZEOF_LONG 4
+#else /* AXP and IA64 */
 #define HAVE_GETTIMEOFDAY
 #define HAVE_USLEEP
 #define HAVE_STRCASECMP
 #define HAVE_STRINGS_H
 #define HAVE_SIGSETJMP
 #define HAVE_ISNAN
+#define VIM_SIZEOF_LONG 8
 #endif
 
 /* Compiler specific */
@@ -191,6 +197,9 @@
 /* GUI support defines */
 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK)
 #define HAVE_X11
+#ifdef HAVE_XPM
+#define HAVE_X11_XPM_H
+#endif
 #define USE_FONTSET
 #undef  X_LOCALE
 #endif
diff --git a/src/version.c b/src/version.c
index 3f0e23b..4e3c5a2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -792,6 +792,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    766,
+/**/
     765,
 /**/
     764,
diff --git a/src/vim.h b/src/vim.h
index 3d4094e..b11f1cc 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -337,6 +337,17 @@
 typedef unsigned char	char_u;
 typedef unsigned short	short_u;
 typedef unsigned int	int_u;
+
+/* Older systems do not have support for long long
+ * use a typedef instead of hadcoded long long */
+#ifdef HAVE_NO_LONG_LONG
+ typedef long long_long_T;
+ typedef long unsigned long_long_u_T;
+#else
+ typedef long long long_long_T;
+ typedef long long unsigned long_long_u_T;
+#endif
+
 /* Make sure long_u is big enough to hold a pointer.
  * On Win64, longs are 32 bits and pointers are 64 bits.
  * For printf() and scanf(), we need to take care of long_u specifically. */
diff --git a/src/xdiff/xdiff.h b/src/xdiff/xdiff.h
index a8bc1dc..783dc9d 100644
--- a/src/xdiff/xdiff.h
+++ b/src/xdiff/xdiff.h
@@ -108,7 +108,11 @@
 	long bsize;
 } bdiffparam_t;
 
-#include "../vim.h"
+#ifdef VMS
+# include "[]vim.h"
+#else
+# include "../vim.h"
+#endif
 
 #define xdl_malloc(x) lalloc((x), TRUE)
 #define xdl_free(ptr) vim_free(ptr)
diff --git a/src/xdiff/xinclude.h b/src/xdiff/xinclude.h
index 46b8608..752c9f3 100644
--- a/src/xdiff/xinclude.h
+++ b/src/xdiff/xinclude.h
@@ -22,7 +22,11 @@
 
 /* defines HAVE_ATTRIBUTE_UNUSED */
 #ifdef HAVE_CONFIG_H
-# include "../auto/config.h"
+# ifdef VMS
+#  include "[.auto]config.h"
+# else
+#  include "../auto/config.h"
+# endif
 #endif
 
 /* Mark unused function arguments with UNUSED, so that gcc -Wunused-parameter