On Wed, Mar 04, 2020 at 02:06:58PM -0700, Martin Sebor wrote:
> +#ifndef alloca
> +// Simulate a definition in a system header.
> +# 13 "/usr/include/alloca.h"
> +# define alloca(n) __builtin_alloca (n)
> +# 15 "Walloca-larger-than-3.c"
> +#endif
This isn't correct simulation of definition in a system header.
Comment out the #include <alloca.h> to verify.
The third line should be
# 1 "/usr/include/alloca.h" 1 3
(or 1 3 4 at the end)
and fifth line should be
# 15 "Walloca-larger-than-3.c" 2
1 means entering a header, 3 means system header (4 is about implicit
extern "C") and 2 means returning back to previous source.
Jakub
