Prototypes (C&R 'C')

Hello,

the current function prototypes are as:
void
rb_mem_clear(mem, size)
    register VALUE *mem;
    register long size;
{
... so it's an old style. The reason for this was 'make ruby compilable' 
for old C-compiler.

OK.

But Oniguruma sources are written in 'new' prototypes:
static void
region_list_clear(OnigRegion** list)
{
... so ruby isn't compilable any longer on those old-C-compilers.

I'd suggest to fluently migrate to this new style as we're making 
changes/fixes in ruby.

In other words: when you're fixing something in some function, migrate 
that function to 'new' prototype as well.

What do you think?

	Michal.