diff --git a/src/eval.c b/src/eval.c
index ac1058c..ecf7a9a 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -973,8 +973,7 @@
  * Return the name of the executed function.
  */
     char_u *
-func_name(cookie)
-    void *cookie;
+func_name(void *cookie)
 {
     return ((funccall_T *)cookie)->func->uf_name;
 }
@@ -993,8 +992,7 @@
  * Return the address holding the debug tick for a funccall cookie.
  */
     int *
-func_dbg_tick(cookie)
-    void *cookie;
+func_dbg_tick(void *cookie)
 {
     return &((funccall_T *)cookie)->dbg_tick;
 }
@@ -1003,8 +1001,7 @@
  * Return the nesting level for a funccall cookie.
  */
     int
-func_level(cookie)
-    void *cookie;
+func_level(void *cookie)
 {
     return ((funccall_T *)cookie)->level;
 }
@@ -1031,9 +1028,7 @@
  * not already exist.
  */
     void
-set_internal_string_var(name, value)
-    char_u	*name;
-    char_u	*value;
+set_internal_string_var(char_u *name, char_u *value)
 {
     char_u	*val;
     typval_T	*tvp;
@@ -1057,12 +1052,11 @@
 
 /*
  * Start recording command output to a variable
+ * When "append" is TRUE append to an existing variable.
  * Returns OK if successfully completed the setup.  FAIL otherwise.
  */
     int
-var_redir_start(name, append)
-    char_u	*name;
-    int		append;		/* append to an existing variable */
+var_redir_start(char_u *name, int append)
 {
     int		save_emsg;
     int		err;
@@ -1139,9 +1133,7 @@
  *   :redir END
  */
     void
-var_redir_str(value, value_len)
-    char_u	*value;
-    int		value_len;
+var_redir_str(char_u *value, int value_len)
 {
     int		len;
 
@@ -1201,11 +1193,11 @@
 
 # if defined(FEAT_MBYTE) || defined(PROTO)
     int
-eval_charconvert(enc_from, enc_to, fname_from, fname_to)
-    char_u	*enc_from;
-    char_u	*enc_to;
-    char_u	*fname_from;
-    char_u	*fname_to;
+eval_charconvert(
+    char_u	*enc_from,
+    char_u	*enc_to,
+    char_u	*fname_from,
+    char_u	*fname_to)
 {
     int		err = FALSE;
 
diff --git a/src/main.c b/src/main.c
index 584687e..d7723d2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1064,9 +1064,9 @@
  * commands, return when entering Ex mode.  "noexmode" is TRUE then.
  */
     void
-main_loop(cmdwin, noexmode)
-    int		cmdwin;	    /* TRUE when working in the command-line window */
-    int		noexmode;   /* TRUE when return on entering Ex mode */
+main_loop(
+    int		cmdwin,	    /* TRUE when working in the command-line window */
+    int		noexmode)   /* TRUE when return on entering Ex mode */
 {
     oparg_T	oa;				/* operator arguments */
     volatile int previous_got_int = FALSE;	/* "got_int" was TRUE */
@@ -1360,8 +1360,7 @@
  * Exit, but leave behind swap files for modified buffers.
  */
     void
-getout_preserve_modified(exitval)
-    int		exitval;
+getout_preserve_modified(int exitval)
 {
 # if defined(SIGHUP) && defined(SIG_IGN)
     /* Ignore SIGHUP, because a dropped connection causes a read error, which
@@ -1380,8 +1379,7 @@
 
 /* Exit properly */
     void
-getout(exitval)
-    int		exitval;
+getout(int exitval)
 {
 #ifdef FEAT_AUTOCMD
     buf_T	*buf;
diff --git a/src/os_unix.h b/src/os_unix.h
index 0dd75cf..4504cce 100644
--- a/src/os_unix.h
+++ b/src/os_unix.h
@@ -75,13 +75,7 @@
 #endif
 
 #ifndef __ARGS
-    /* The AIX VisualAge cc compiler defines __EXTENDED__ instead of __STDC__
-     * because it includes pre-ansi features. */
-# if defined(__STDC__) || defined(__GNUC__) || defined(__EXTENDED__)
-#  define __ARGS(x) x
-# else
-#  define __ARGS(x) ()
-# endif
+# define __ARGS(x) x
 #endif
 
 /* always use unlink() to remove files */
@@ -181,10 +175,6 @@
 # include <pwd.h>
 #endif
 
-#ifdef __COHERENT__
-# undef __ARGS
-#endif
-
 #if (defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT)) \
 	|| (defined(HAVE_SYS_SYSINFO_H) && defined(HAVE_SYSINFO)) \
 	|| defined(HAVE_SYSCTL) || defined(HAVE_SYSCONF)
diff --git a/src/version.c b/src/version.c
index a3d0146..475b4d6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1098,
+/**/
     1097,
 /**/
     1096,
diff --git a/src/vim.h b/src/vim.h
index 81d0929..a8a6ead 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -255,26 +255,18 @@
  */
 #ifdef AZTEC_C
 # include <functions.h>
-# define __ARGS(x)  x
 #endif
 
 #ifdef SASC
 # include <clib/exec_protos.h>
-# define __ARGS(x)  x
 #endif
 
 #ifdef _DCC
 # include <clib/exec_protos.h>
-# define __ARGS(x)  x
-#endif
-
-#ifdef __TURBOC__
-# define __ARGS(x) x
 #endif
 
 #ifdef __BEOS__
 # include "os_beos.h"
-# define __ARGS(x)  x
 #endif
 
 #if (defined(UNIX) || defined(__EMX__) || defined(VMS)) \
@@ -282,16 +274,8 @@
 # include "os_unix.h"	    /* bring lots of system header files */
 #endif
 
-#if defined(MACOS) && (defined(__MRC__) || defined(__SC__))
-   /* Apple's Compilers support prototypes */
-# define __ARGS(x) x
-#endif
 #ifndef __ARGS
-# if defined(__STDC__) || defined(__GNUC__) || defined(WIN3264)
-#  define __ARGS(x) x
-# else
-#  define __ARGS(x) ()
-# endif
+# define __ARGS(x) x
 #endif
 
 /* __ARGS and __PARMS are the same thing. */