diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index e9630ee..9b2a193 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -44,8 +44,7 @@
  * ":ascii" and "ga".
  */
     void
-do_ascii(eap)
-    exarg_T	*eap UNUSED;
+do_ascii(exarg_T *eap UNUSED)
 {
     int		c;
     int		cval;
@@ -144,8 +143,7 @@
  * ":left", ":center" and ":right": align text.
  */
     void
-ex_align(eap)
-    exarg_T	*eap;
+ex_align(exarg_T *eap)
 {
     pos_T	save_curpos;
     int		len;
@@ -247,8 +245,7 @@
  * Get the length of the current line, excluding trailing white space.
  */
     static int
-linelen(has_tab)
-    int	    *has_tab;
+linelen(int *has_tab)
 {
     char_u  *line;
     char_u  *first;
@@ -315,9 +312,7 @@
 #ifdef __BORLANDC__
 _RTLENTRYF
 #endif
-sort_compare(s1, s2)
-    const void	*s1;
-    const void	*s2;
+sort_compare(const void *s1, const void *s2)
 {
     sorti_T	l1 = *(sorti_T *)s1;
     sorti_T	l2 = *(sorti_T *)s2;
@@ -368,8 +363,7 @@
  * ":sort".
  */
     void
-ex_sort(eap)
-    exarg_T	*eap;
+ex_sort(exarg_T *eap)
 {
     regmatch_T	regmatch;
     int		len;
@@ -648,8 +642,7 @@
  * ":retab".
  */
     void
-ex_retab(eap)
-    exarg_T	*eap;
+ex_retab(exarg_T *eap)
 {
     linenr_T	lnum;
     int		got_tab = FALSE;
@@ -798,10 +791,7 @@
  * return FAIL for failure, OK otherwise
  */
     int
-do_move(line1, line2, dest)
-    linenr_T	line1;
-    linenr_T	line2;
-    linenr_T	dest;
+do_move(linenr_T line1, linenr_T line2, linenr_T dest)
 {
     char_u	*str;
     linenr_T	l;
@@ -929,10 +919,7 @@
  * ":copy"
  */
     void
-ex_copy(line1, line2, n)
-    linenr_T	line1;
-    linenr_T	line2;
-    linenr_T	n;
+ex_copy(linenr_T line1, linenr_T line2, linenr_T n)
 {
     linenr_T	count;
     char_u	*p;
@@ -987,7 +974,7 @@
 
 #if defined(EXITFREE) || defined(PROTO)
     void
-free_prev_shellcmd()
+free_prev_shellcmd(void)
 {
     vim_free(prevcmd);
 }
@@ -999,11 +986,12 @@
  * Remember the argument.
  */
     void
-do_bang(addr_count, eap, forceit, do_in, do_out)
-    int		addr_count;
-    exarg_T	*eap;
-    int		forceit;
-    int		do_in, do_out;
+do_bang(
+    int		addr_count,
+    exarg_T	*eap,
+    int		forceit,
+    int		do_in,
+    int		do_out)
 {
     char_u		*arg = eap->arg;	/* command */
     linenr_T		line1 = eap->line1;	/* start of range */
@@ -1165,11 +1153,13 @@
  * We use output redirection if do_out is TRUE.
  */
     static void
-do_filter(line1, line2, eap, cmd, do_in, do_out)
-    linenr_T	line1, line2;
-    exarg_T	*eap;		/* for forced 'ff' and 'fenc' */
-    char_u	*cmd;
-    int		do_in, do_out;
+do_filter(
+    linenr_T	line1,
+    linenr_T	line2,
+    exarg_T	*eap,		/* for forced 'ff' and 'fenc' */
+    char_u	*cmd,
+    int		do_in,
+    int		do_out)
 {
     char_u	*itmp = NULL;
     char_u	*otmp = NULL;
@@ -1445,9 +1435,9 @@
  * When "cmd" is NULL start an interactive shell.
  */
     void
-do_shell(cmd, flags)
-    char_u	*cmd;
-    int		flags;	/* may be SHELL_DOOUT when output is redirected */
+do_shell(
+    char_u	*cmd,
+    int		flags)	/* may be SHELL_DOOUT when output is redirected */
 {
     buf_T	*buf;
 #ifndef FEAT_GUI_MSWIN
@@ -1628,10 +1618,10 @@
  * Returns an allocated string with the shell command, or NULL for failure.
  */
     char_u *
-make_filter_cmd(cmd, itmp, otmp)
-    char_u	*cmd;		/* command */
-    char_u	*itmp;		/* NULL or name of input file */
-    char_u	*otmp;		/* NULL or name of output file */
+make_filter_cmd(
+    char_u	*cmd,		/* command */
+    char_u	*itmp,		/* NULL or name of input file */
+    char_u	*otmp)		/* NULL or name of output file */
 {
     char_u	*buf;
     long_u	len;
@@ -1723,11 +1713,11 @@
  *	STRLEN(opt) + STRLEN(fname) + 3
  */
     void
-append_redir(buf, buflen, opt, fname)
-    char_u	*buf;
-    int		buflen;
-    char_u	*opt;
-    char_u	*fname;
+append_redir(
+    char_u	*buf,
+    int		buflen,
+    char_u	*opt,
+    char_u	*fname)
 {
     char_u	*p;
     char_u	*end;
@@ -1764,7 +1754,7 @@
 static int  viminfo_errcnt;
 
     static int
-no_viminfo()
+no_viminfo(void)
 {
     /* "vim -i NONE" does not read or write a viminfo file */
     return (use_viminfo != NULL && STRCMP(use_viminfo, "NONE") == 0);
@@ -1775,10 +1765,7 @@
  * Count the number of errors.	When there are more than 10, return TRUE.
  */
     int
-viminfo_error(errnum, message, line)
-    char    *errnum;
-    char    *message;
-    char_u  *line;
+viminfo_error(char *errnum, char *message, char_u *line)
 {
     vim_snprintf((char *)IObuff, IOSIZE, _("%sviminfo: %s in line: "),
 							     errnum, message);
@@ -1799,9 +1786,9 @@
  * set are not over-written unless "flags" includes VIF_FORCEIT. -- webb
  */
     int
-read_viminfo(file, flags)
-    char_u	*file;	    /* file name or NULL to use default name */
-    int		flags;	    /* VIF_WANT_INFO et al. */
+read_viminfo(
+    char_u	*file,	    /* file name or NULL to use default name */
+    int		flags)	    /* VIF_WANT_INFO et al. */
 {
     FILE	*fp;
     char_u	*fname;
@@ -1845,9 +1832,7 @@
  * info is written to the file.
  */
     void
-write_viminfo(file, forceit)
-    char_u	*file;
-    int		forceit;
+write_viminfo(char_u *file, int forceit)
 {
     char_u	*fname;
     FILE	*fp_in = NULL;	/* input viminfo file, if any */
@@ -2120,8 +2105,7 @@
  * Returns an allocated string.  NULL when out of memory.
  */
     static char_u *
-viminfo_filename(file)
-    char_u	*file;
+viminfo_filename(char_u *file)
 {
     if (file == NULL || *file == NUL)
     {
@@ -2158,10 +2142,7 @@
  * do_viminfo() -- Should only be called from read_viminfo() & write_viminfo().
  */
     static void
-do_viminfo(fp_in, fp_out, flags)
-    FILE	*fp_in;
-    FILE	*fp_out;
-    int		flags;
+do_viminfo(FILE *fp_in, FILE *fp_out, int flags)
 {
     int		count = 0;
     int		eof = FALSE;
@@ -2232,10 +2213,10 @@
  * are local to a file.  Returns TRUE when end-of-file is reached. -- webb
  */
     static int
-read_viminfo_up_to_marks(virp, forceit, writing)
-    vir_T	*virp;
-    int		forceit;
-    int		writing;
+read_viminfo_up_to_marks(
+    vir_T	*virp,
+    int		forceit,
+    int		writing)
 {
     int		eof;
     buf_T	*buf;
@@ -2331,8 +2312,7 @@
  * conversion of text with iconv() in viminfo_readstring().
  */
     static int
-viminfo_encoding(virp)
-    vir_T	*virp;
+viminfo_encoding(vir_T *virp)
 {
 #ifdef FEAT_MBYTE
     char_u	*p;
@@ -2361,8 +2341,7 @@
  * Returns TRUE for end-of-file;
  */
     int
-viminfo_readline(virp)
-    vir_T	*virp;
+viminfo_readline(vir_T *virp)
 {
     return vim_fgets(virp->vir_line, LSIZE, virp->vir_fd);
 }
@@ -2378,10 +2357,10 @@
  * Return the string in allocated memory (NULL when out of memory).
  */
     char_u *
-viminfo_readstring(virp, off, convert)
-    vir_T	*virp;
-    int		off;		    /* offset for virp->vir_line */
-    int		convert UNUSED;	    /* convert the string */
+viminfo_readstring(
+    vir_T	*virp,
+    int		off,		    /* offset for virp->vir_line */
+    int		convert UNUSED)	    /* convert the string */
 {
     char_u	*retval;
     char_u	*s, *d;
@@ -2451,9 +2430,7 @@
  * - write " < <string> \n "	  in second line
  */
     void
-viminfo_writestring(fd, p)
-    FILE	*fd;
-    char_u	*p;
+viminfo_writestring(FILE *fd, char_u *p)
 {
     int		c;
     char_u	*s;
@@ -2509,8 +2486,7 @@
  * not ^?	^?
  */
     void
-do_fixdel(eap)
-    exarg_T	*eap UNUSED;
+do_fixdel(exarg_T *eap UNUSED)
 {
     char_u  *p;
 
@@ -2520,10 +2496,10 @@
 }
 
     void
-print_line_no_prefix(lnum, use_number, list)
-    linenr_T	lnum;
-    int		use_number;
-    int		list;
+print_line_no_prefix(
+    linenr_T	lnum,
+    int		use_number,
+    int		list)
 {
     char_u	numbuf[30];
 
@@ -2540,10 +2516,7 @@
  * Print a text line.  Also in silent mode ("ex -s").
  */
     void
-print_line(lnum, use_number, list)
-    linenr_T	lnum;
-    int		use_number;
-    int		list;
+print_line(linenr_T lnum, int use_number, int list)
 {
     int		save_silent = silent_mode;
 
@@ -2562,8 +2535,7 @@
 }
 
     int
-rename_buffer(new_fname)
-    char_u	*new_fname;
+rename_buffer(char_u *new_fname)
 {
     char_u	*fname, *sfname, *xfname;
     buf_T	*buf;
@@ -2618,8 +2590,7 @@
  * ":file[!] [fname]".
  */
     void
-ex_file(eap)
-    exarg_T	*eap;
+ex_file(exarg_T *eap)
 {
     /* ":0file" removes the file name.  Check for illegal uses ":3file",
      * "0file name", etc. */
@@ -2645,8 +2616,7 @@
  * ":update".
  */
     void
-ex_update(eap)
-    exarg_T	*eap;
+ex_update(exarg_T *eap)
 {
     if (curbufIsChanged())
 	(void)do_write(eap);
@@ -2656,8 +2626,7 @@
  * ":write" and ":saveas".
  */
     void
-ex_write(eap)
-    exarg_T	*eap;
+ex_write(exarg_T *eap)
 {
     if (eap->usefilter)		/* input lines to shell command */
 	do_bang(1, eap, FALSE, TRUE, FALSE);
@@ -2674,8 +2643,7 @@
  * return FAIL for failure, OK otherwise
  */
     int
-do_write(eap)
-    exarg_T	*eap;
+do_write(exarg_T *eap)
 {
     int		other;
     char_u	*fname = NULL;		/* init to shut up gcc */
@@ -2886,13 +2854,13 @@
  * Return OK if it's OK, FAIL if it is not.
  */
     int
-check_overwrite(eap, buf, fname, ffname, other)
-    exarg_T	*eap;
-    buf_T	*buf;
-    char_u	*fname;	    /* file name to be used (can differ from
+check_overwrite(
+    exarg_T	*eap,
+    buf_T	*buf,
+    char_u	*fname,	    /* file name to be used (can differ from
 			       buf->ffname) */
-    char_u	*ffname;    /* full path version of fname */
-    int		other;	    /* writing under other name */
+    char_u	*ffname,    /* full path version of fname */
+    int		other)	    /* writing under other name */
 {
     /*
      * write to other file or b_flags set or not writing the whole file:
@@ -3005,8 +2973,7 @@
  * Handle ":wnext", ":wNext" and ":wprevious" commands.
  */
     void
-ex_wnext(eap)
-    exarg_T	*eap;
+ex_wnext(exarg_T *eap)
 {
     int		i;
 
@@ -3024,8 +2991,7 @@
  * ":wall", ":wqall" and ":xall": Write all changed files (and exit).
  */
     void
-do_wqall(eap)
-    exarg_T	*eap;
+do_wqall(exarg_T *eap)
 {
     buf_T	*buf;
     int		error = 0;
@@ -3092,7 +3058,7 @@
  * Return TRUE and give a message when it's not st.
  */
     int
-not_writing()
+not_writing(void)
 {
     if (p_write)
 	return FALSE;
@@ -3106,9 +3072,7 @@
  * message when the buffer is readonly.
  */
     static int
-check_readonly(forceit, buf)
-    int		*forceit;
-    buf_T	*buf;
+check_readonly(int *forceit, buf_T *buf)
 {
     struct stat	st;
 
@@ -3163,13 +3127,13 @@
  * 'lnum' is the line number for the cursor in the new file (if non-zero).
  */
     int
-getfile(fnum, ffname, sfname, setpm, lnum, forceit)
-    int		fnum;
-    char_u	*ffname;
-    char_u	*sfname;
-    int		setpm;
-    linenr_T	lnum;
-    int		forceit;
+getfile(
+    int		fnum,
+    char_u	*ffname,
+    char_u	*sfname,
+    int		setpm,
+    linenr_T	lnum,
+    int		forceit)
 {
     int		other;
     int		retval;
@@ -3264,14 +3228,14 @@
  * return FAIL for failure, OK otherwise
  */
     int
-do_ecmd(fnum, ffname, sfname, eap, newlnum, flags, oldwin)
-    int		fnum;
-    char_u	*ffname;
-    char_u	*sfname;
-    exarg_T	*eap;			/* can be NULL! */
-    linenr_T	newlnum;
-    int		flags;
-    win_T	*oldwin;
+do_ecmd(
+    int		fnum,
+    char_u	*ffname,
+    char_u	*sfname,
+    exarg_T	*eap,			/* can be NULL! */
+    linenr_T	newlnum,
+    int		flags,
+    win_T	*oldwin)
 {
     int		other_file;		/* TRUE if editing another file */
     int		oldbuf;			/* TRUE if using existing buffer */
@@ -3982,8 +3946,7 @@
 
 #ifdef FEAT_AUTOCMD
     static void
-delbuf_msg(name)
-    char_u	*name;
+delbuf_msg(char_u *name)
 {
     EMSG2(_("E143: Autocommands unexpectedly deleted new buffer %s"),
 	    name == NULL ? (char_u *)"" : name);
@@ -3998,8 +3961,7 @@
  * ":insert" and ":append", also used by ":change"
  */
     void
-ex_append(eap)
-    exarg_T	*eap;
+ex_append(exarg_T *eap)
 {
     char_u	*theline;
     int		did_undo = FALSE;
@@ -4143,8 +4105,7 @@
  * ":change"
  */
     void
-ex_change(eap)
-    exarg_T	*eap;
+ex_change(exarg_T *eap)
 {
     linenr_T	lnum;
 
@@ -4173,8 +4134,7 @@
 }
 
     void
-ex_z(eap)
-    exarg_T	*eap;
+ex_z(exarg_T *eap)
 {
     char_u	*x;
     int		bigness;
@@ -4304,7 +4264,7 @@
  * Otherwise, return FALSE.
  */
     int
-check_restricted()
+check_restricted(void)
 {
     if (restricted)
     {
@@ -4320,7 +4280,7 @@
  * Otherwise, return FALSE.
  */
     int
-check_secure()
+check_secure(void)
 {
     if (secure)
     {
@@ -4355,8 +4315,7 @@
  * The usual escapes are supported as described in the regexp docs.
  */
     void
-do_sub(eap)
-    exarg_T	*eap;
+do_sub(exarg_T *eap)
 {
     linenr_T	lnum;
     long	i = 0;
@@ -5434,8 +5393,8 @@
  * Return TRUE if a message was given.
  */
     int
-do_sub_msg(count_only)
-    int	    count_only;		/* used 'n' flag for ":s" */
+do_sub_msg(
+    int	    count_only)		/* used 'n' flag for ":s" */
 {
     /*
      * Only report substitutions when:
@@ -5494,8 +5453,7 @@
  * lines we do not know where to search for the next match.
  */
     void
-ex_global(eap)
-    exarg_T	*eap;
+ex_global(exarg_T *eap)
 {
     linenr_T	lnum;		/* line number according to old situation */
     int		ndone = 0;
@@ -5615,8 +5573,7 @@
  * Execute "cmd" on lines marked with ml_setmarked().
  */
     void
-global_exe(cmd)
-    char_u	*cmd;
+global_exe(char_u *cmd)
 {
     linenr_T old_lcount;	/* b_ml.ml_line_count before the command */
     buf_T    *old_buf = curbuf;	/* remember what buffer we started in */
@@ -5673,9 +5630,7 @@
 
 #ifdef FEAT_VIMINFO
     int
-read_viminfo_sub_string(virp, force)
-    vir_T	*virp;
-    int		force;
+read_viminfo_sub_string(vir_T *virp, int force)
 {
     if (force)
 	vim_free(old_sub);
@@ -5685,8 +5640,7 @@
 }
 
     void
-write_viminfo_sub_string(fp)
-    FILE    *fp;
+write_viminfo_sub_string(FILE *fp)
 {
     if (get_viminfo_parameter('/') != 0 && old_sub != NULL)
     {
@@ -5698,7 +5652,7 @@
 
 #if defined(EXITFREE) || defined(PROTO)
     void
-free_old_sub()
+free_old_sub(void)
 {
     vim_free(old_sub);
 }
@@ -5710,8 +5664,8 @@
  * Return TRUE when it was created.
  */
     int
-prepare_tagpreview(undo_sync)
-    int		undo_sync;	/* sync undo when leaving the window */
+prepare_tagpreview(
+    int		undo_sync)	/* sync undo when leaving the window */
 {
     win_T	*wp;
 
@@ -5760,8 +5714,7 @@
  * ":help": open a read-only window on a help file
  */
     void
-ex_help(eap)
-    exarg_T	*eap;
+ex_help(exarg_T *eap)
 {
     char_u	*arg;
     char_u	*tag;
@@ -5978,8 +5931,7 @@
  * ":helpclose": Close one help window
  */
     void
-ex_helpclose(eap)
-    exarg_T	*eap UNUSED;
+ex_helpclose(exarg_T *eap UNUSED)
 {
 #if defined(FEAT_WINDOWS)
     win_T *win;
@@ -6002,8 +5954,7 @@
  * Returns NULL if not found.
  */
     char_u *
-check_help_lang(arg)
-    char_u *arg;
+check_help_lang(char_u *arg)
 {
     int len = (int)STRLEN(arg);
 
@@ -6029,10 +5980,10 @@
  * match some string for which help is requested.  webb.
  */
     int
-help_heuristic(matched_string, offset, wrong_case)
-    char_u	*matched_string;
-    int		offset;			/* offset for match */
-    int		wrong_case;		/* no matching case */
+help_heuristic(
+    char_u	*matched_string,
+    int		offset,			/* offset for match */
+    int		wrong_case)		/* no matching case */
 {
     int		num_letters;
     char_u	*p;
@@ -6073,9 +6024,7 @@
 #ifdef __BORLANDC__
 _RTLENTRYF
 #endif
-help_compare(s1, s2)
-    const void	*s1;
-    const void	*s2;
+help_compare(const void *s1, const void *s2)
 {
     char    *p1;
     char    *p2;
@@ -6092,11 +6041,11 @@
  * When "keep_lang" is TRUE try keeping the language of the current buffer.
  */
     int
-find_help_tags(arg, num_matches, matches, keep_lang)
-    char_u	*arg;
-    int		*num_matches;
-    char_u	***matches;
-    int		keep_lang;
+find_help_tags(
+    char_u	*arg,
+    int		*num_matches,
+    char_u	***matches,
+    int		keep_lang)
 {
     char_u	*s, *d;
     int		i;
@@ -6300,7 +6249,7 @@
  * Called when starting to edit a buffer for a help file.
  */
     static void
-prepare_help_buffer()
+prepare_help_buffer(void)
 {
     char_u	*p;
 
@@ -6368,7 +6317,7 @@
  * highlighting is not used.
  */
     void
-fix_help_buffer()
+fix_help_buffer(void)
 {
     linenr_T	lnum;
     char_u	*line;
@@ -6610,8 +6559,7 @@
  * ":exusage"
  */
     void
-ex_exusage(eap)
-    exarg_T	*eap UNUSED;
+ex_exusage(exarg_T *eap UNUSED)
 {
     do_cmdline_cmd((char_u *)"help ex-cmd-index");
 }
@@ -6620,8 +6568,7 @@
  * ":viusage"
  */
     void
-ex_viusage(eap)
-    exarg_T	*eap UNUSED;
+ex_viusage(exarg_T *eap UNUSED)
 {
     do_cmdline_cmd((char_u *)"help normal-index");
 }
@@ -6633,8 +6580,7 @@
  * ":helptags"
  */
     void
-ex_helptags(eap)
-    exarg_T	*eap;
+ex_helptags(exarg_T *eap)
 {
     garray_T	ga;
     int		i, j;
@@ -6758,11 +6704,11 @@
 }
 
     static void
-helptags_one(dir, ext, tagfname, add_help_tags)
-    char_u	*dir;		/* doc directory */
-    char_u	*ext;		/* suffix, ".txt", ".itx", ".frx", etc. */
-    char_u	*tagfname;	/* "tags" for English, "tags-fr" for French. */
-    int		add_help_tags;	/* add "help-tags" tag */
+helptags_one(
+    char_u	*dir,		/* doc directory */
+    char_u	*ext,		/* suffix, ".txt", ".itx", ".frx", etc. */
+    char_u	*tagfname,	/* "tags" for English, "tags-fr" for French. */
+    int		add_help_tags)	/* add "help-tags" tag */
 {
     FILE	*fd_tags;
     FILE	*fd;
@@ -7064,9 +7010,9 @@
  * "*end_cmd" must be writable.
  */
     static int
-sign_cmd_idx(begin_cmd, end_cmd)
-    char_u	*begin_cmd;	/* begin of sign subcmd */
-    char_u	*end_cmd;	/* just after sign subcmd */
+sign_cmd_idx(
+    char_u	*begin_cmd,	/* begin of sign subcmd */
+    char_u	*end_cmd)	/* just after sign subcmd */
 {
     int		idx;
     char	save = *end_cmd;
@@ -7083,8 +7029,7 @@
  * ":sign" command
  */
     void
-ex_sign(eap)
-    exarg_T	*eap;
+ex_sign(exarg_T *eap)
 {
     char_u	*arg = eap->arg;
     char_u	*p;
@@ -7490,7 +7435,7 @@
  * signs before it starts.
  */
     void
-sign_gui_started()
+sign_gui_started(void)
 {
     sign_T	*sp;
 
@@ -7504,8 +7449,7 @@
  * List one sign.
  */
     static void
-sign_list_defined(sp)
-    sign_T	*sp;
+sign_list_defined(sign_T *sp)
 {
     char_u	*p;
 
@@ -7550,9 +7494,7 @@
  * Undefine a sign and free its memory.
  */
     static void
-sign_undefine(sp, sp_prev)
-    sign_T	*sp;
-    sign_T	*sp_prev;
+sign_undefine(sign_T *sp, sign_T *sp_prev)
 {
     vim_free(sp->sn_name);
     vim_free(sp->sn_icon);
@@ -7576,9 +7518,7 @@
  * If "line" is TRUE: line highl, if FALSE: text highl.
  */
     int
-sign_get_attr(typenr, line)
-    int		typenr;
-    int		line;
+sign_get_attr(int typenr, int line)
 {
     sign_T	*sp;
 
@@ -7605,8 +7545,7 @@
  * Returns NULL if there isn't one.
  */
     char_u *
-sign_get_text(typenr)
-    int		typenr;
+sign_get_text(int typenr)
 {
     sign_T	*sp;
 
@@ -7618,8 +7557,8 @@
 
 # if defined(FEAT_SIGN_ICONS) || defined(PROTO)
     void *
-sign_get_image(typenr)
-    int		typenr;		/* the attribute which may have a sign */
+sign_get_image(
+    int		typenr)		/* the attribute which may have a sign */
 {
     sign_T	*sp;
 
@@ -7634,8 +7573,7 @@
  * Get the name of a sign by its typenr.
  */
     char_u *
-sign_typenr2name(typenr)
-    int		typenr;
+sign_typenr2name(int typenr)
 {
     sign_T	*sp;
 
@@ -7650,7 +7588,7 @@
  * Undefine/free all signs.
  */
     void
-free_signs()
+free_signs(void)
 {
     while (first_sign != NULL)
 	sign_undefine(first_sign, NULL);
@@ -7672,9 +7610,7 @@
  * expansion.
  */
     char_u *
-get_sign_name(xp, idx)
-    expand_T	*xp UNUSED;
-    int		idx;
+get_sign_name(expand_T *xp UNUSED, int idx)
 {
     sign_T	*sp;
     int		current_idx;
@@ -7720,9 +7656,7 @@
  * Handle command line completion for :sign command.
  */
     void
-set_context_in_sign_cmd(xp, arg)
-    expand_T	*xp;
-    char_u	*arg;
+set_context_in_sign_cmd(expand_T *xp, char_u *arg)
 {
     char_u	*p;
     char_u	*end_subcmd;
@@ -7842,8 +7776,7 @@
  * Make the user happy.
  */
     void
-ex_smile(eap)
-    exarg_T	*eap UNUSED;
+ex_smile(exarg_T *eap UNUSED)
 {
     static char *code = "\34 \4o\14$\4ox\30 \2o\30$\1ox\25 \2o\36$\1o\11 \1o\1$\3 \2$\1 \1o\1$x\5 \1o\1 \1$\1 \2o\10 \1o\44$\1o\7 \2$\1 \2$\1 \2$\1o\1$x\2 \2o\1 \1$\1 \1$\1 \1\"\1$\6 \1o\11$\4 \15$\4 \11$\1o\7 \3$\1o\2$\1o\1$x\2 \1\"\6$\1o\1$\5 \1o\11$\6 \13$\6 \12$\1o\4 \10$x\4 \7$\4 \13$\6 \13$\6 \27$x\4 \27$\4 \15$\4 \16$\2 \3\"\3$x\5 \1\"\3$\4\"\61$\5 \1\"\3$x\6 \3$\3 \1o\62$\5 \1\"\3$\1ox\5 \1o\2$\1\"\3 \63$\7 \3$\1ox\5 \3$\4 \55$\1\"\1 \1\"\6$\5o\4$\1ox\4 \1o\3$\4o\5$\2 \45$\3 \1o\21$x\4 \10$\1\"\4$\3 \42$\5 \4$\10\"x\3 \4\"\7 \4$\4 \1\"\34$\1\"\6 \1o\3$x\16 \1\"\3$\1o\5 \3\"\22$\1\"\2$\1\"\11 \3$x\20 \3$\1o\12 \1\"\2$\2\"\6$\4\"\13 \1o\3$x\21 \4$\1o\40 \1o\3$\1\"x\22 \1\"\4$\1o\6 \1o\6$\1o\1\"\4$\1o\10 \1o\4$x\24 \1\"\5$\2o\5 \2\"\4$\1o\5$\1o\3 \1o\4$\2\"x\27 \2\"\5$\4o\2 \1\"\3$\1o\11$\3\"x\32 \2\"\7$\2o\1 \12$x\42 \4\"\13$x\46 \14$x\47 \12$\1\"x\50 \1\"\3$\4\"x";
     char *p;
@@ -7870,8 +7803,7 @@
  * the argument list is redefined.
  */
     void
-ex_drop(eap)
-    exarg_T	*eap;
+ex_drop(exarg_T *eap)
 {
     int		split = FALSE;
     win_T	*wp;