Re: [Ctool-develop] testing the gcc test suite

[Stefan S. <se...@sy...>]

Shaun Flisakowski wrote:

> Empty arrays are not allowed in Ansi C in general, it does seem like 
> that should probably be a warning rather than an error though, since K&R 
> C was lax about that.

I found this in <cdefs.h> on my machine:

/* Support for flexible arrays.  */
#if __GNUC_PREREQ (2,97)
/* GCC 2.97 supports C99 flexible array members.  */
# define __flexarr	[]
#else
# ifdef __GNUC__
#  define __flexarr	[0]
# else
#  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
#   define __flexarr	[]
#  else
/* Some other non-C99 compiler.  Approximate with [1].  */
#   define __flexarr	[1]
#  endif
# endif
#endif

and the line the ctdemo is stumbling over is:

__extension__ struct __gconv_step_data __data __flexarr;

I think the 'right thing to do' would be to provide some
form of a config file that sets individual parser behaviors
such as whether or not to accept 'flexible arrays'.

A quick fix would be to just take the error condition
out of gram.y. This flexible array thing seems to occure
in almost every file I parse as it's part of some very
fundamental system headers on my machine.

Regards,
		Stefan