1 files changed, 9 insertions, 2 deletions

diff --git a/preproc.c b/preproc.c
index b8b6ff2f..3a12fc84 100644
--- a/preproc.c
+++ b/preproc.c
@@ -1584,8 +1584,7 @@ static bool if_condition(Token * tline, enum preproc_token ct)
 	goto iftype;
 
     iftype:
-	tline = expand_smacro(tline);
-	t = tline;
+	t = tline = expand_smacro(tline);
 	
 	while (tok_type_(t, TOK_WHITESPACE) ||
 	       (needtype == TOK_NUMBER &&
@@ -1611,6 +1610,14 @@ static bool if_condition(Token * tline, enum preproc_token ct)
 	}
 	break;
 
+    case PPC_IFEMPTY:
+	t = tline = expand_smacro(tline);
+	while (tok_type_(t, TOK_WHITESPACE))
+	    t = t->next;
+
+	j = !t;			/* Should be empty */
+	break;
+
     case PPC_IF:
         t = tline = expand_smacro(tline);
         tptr = &t;