Version 1.0.0-rc17 has been released.  Some changes are:

- allow __ at the beginning of a struct or union name

- unparsing with precedence (insertion of parentheses when needed)

- Type metavariables no longer match a case where there is no type in the
C code.

- An expression list metavariable can now be attached with @ to a
parameter list metavariable, to allow using the parameter names as an
argument list.