public final GccDeclaratorExtensionContext gccDeclaratorExtension() throws RecognitionException {
		GccDeclaratorExtensionContext _localctx = new GccDeclaratorExtensionContext(_ctx, getState());
		enterRule(_localctx, 106, RULE_gccDeclaratorExtension);
		int _la;
		try {
			setState(824);
			switch (_input.LA(1)) {
			case 7:
				enterOuterAlt(_localctx, 1);
				{
				setState(815); match(7);
				setState(816); match(LeftParen);
				setState(818); 
				_errHandler.sync(this);
				_la = _input.LA(1);
				do {
					{
					{
					setState(817); match(StringLiteral);
					}
					}
					setState(820); 
					_errHandler.sync(this);
					_la = _input.LA(1);
				} while ( _la==StringLiteral );
				setState(822); match(RightParen);
				}
				break;
			case 13:
				enterOuterAlt(_localctx, 2);
				{
				setState(823); gccAttributeSpecifier();
				}
				break;
			default:
				throw new NoViableAltException(this);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}