parser.yy: Use ##__VA_ARGS__ in MAKE_SYNTAX to allow for zero arguments.

diff --git a/lily/parser.yy b/lily/parser.yy
index b0a584ff91e93fd71465659a7d181c7321093bce..8871ec258e48d8acb2e94234a33aceaca435c920 100644 (file)
--- a/lily/parser.yy
+++ b/lily/parser.yy
@@ -141,7 +141,7 @@ using namespace std;
   scm_apply_0 (proc, args)
 /* Syntactic Sugar. */
 #define MAKE_SYNTAX(name, location, ...)       \
-  LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant (name), scm_list_n (PARSER->self_scm (), make_input (location), __VA_ARGS__, SCM_UNDEFINED));
+  LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant (name), scm_list_n (PARSER->self_scm (), make_input (location), ##__VA_ARGS__, SCM_UNDEFINED));
 
 SCM get_next_unique_context_id ();
 SCM get_next_unique_lyrics_context_id ();
@@ -584,7 +584,7 @@ scm_function_call:
        ;
 
 embedded_lilypond:
-       { $$ = MAKE_SYNTAX ("void-music", @$, SCM_UNDEFINED); }
+       { $$ = MAKE_SYNTAX ("void-music", @$); }
        | identifier_init
        | music music music_list {
                $$ = MAKE_SYNTAX ("sequential-music", @$,       
@@ -1816,7 +1816,7 @@ command_element:
                $$ = m->unprotect ();
        }
        | E_BACKSLASH {
-               $$ = MAKE_SYNTAX ("voice-separator", @$, SCM_UNDEFINED);
+               $$ = MAKE_SYNTAX ("voice-separator", @$);
        }
        | '|'      {
                SCM pipe = PARSER->lexer_->lookup_identifier ("pipeSymbol");
@@ -1829,7 +1829,7 @@ command_element:
                        $$ = m->unprotect ();
                }
                else
-                       $$ = MAKE_SYNTAX ("bar-check", @$, SCM_UNDEFINED);
+                       $$ = MAKE_SYNTAX ("bar-check", @$);
 
        }
        | TIME_T fraction  {