re PR c++/30021 (ICE on invalid parameter for main)

	PR c++/30021
	* c-common.c (check_main_parameter_types): Check for error_mark_node.

	* g++.dg/other/main1.C: New test.

From-SVN: r119415

gcc/ChangeLog

+2006-12-01  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/30021
+	* c-common.c (check_main_parameter_types): Check for error_mark_node.
+
 2006-12-01  Andrew MacLeod  <amacleod@redhat.com>
 
 	* common.opt (ftree-combine-temps): Remove.

gcc/c-common.c

@@ -1034,7 +1034,7 @@ check_main_parameter_types (tree decl)
    {
      tree type = args ? TREE_VALUE (args) : 0;
 
-     if (type == void_type_node)
+     if (type == void_type_node || type == error_mark_node )
        break;
 
      ++argct;

gcc/testsuite/ChangeLog

+2006-12-01  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/30021
+	* g++.dg/other/main1.C: New test.
+
 2006-12-01  Thomas Koenig  <Thomas.Koenig@online.de>
 
 	PR libfortran/29568

gcc/testsuite/g++.dg/other/main1.C

+// PR c++/30021
+// { dg-do compile }
+
+int main(void,char**);  // { dg-error "incomplete type|invalid use" }