This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 110c. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
[Voted into the WP at the March, 2011 meeting as part of paper N3262.]
The grammar for declarations includes the following two nonterminals:
An attribute-specifier followed by a semicolon could thus be parsed as either an attribute-declaration or as a simple-declaration that omits the optional decl-specifier-seq and init-declarator-list, and the current wording does not disambiguate the two. (There doesn't seem to be a compelling need for attribute-declaration as a separate nonterminal, given that simple-declaration can accommodate that form.)
Proposed resolution (February, 2011) [SUPERSEDED]:
Change 9.1 [dcl.pre] paragraph 1 as follows:
optionalattribute-specifier-seq in a simple-declaration appertains to each of the entities declared by the declarators ; it shall not appear if the optionalinit-declarator-list is omitted...