C99 anomolies... ?

[DJ Delorie]

As part of our internal testing I found a few bits of newlib that
don't seem to be "right" with C99, enough to cause problems with the
testing framework.  Comments?

llabs / lldiv

	Official as of C99, but in stdlib.h they're still #ifndef
	__STRICT_ANSI__.  There are #tests for C90 and C++11
	declarations elsewhere, is anyone working on #tests for C99?
	Or is newlib still officially just C90?

<math.h>

	has:
	 extern long double frexpl _PARAMS((long double value, int *));
	but the "value" part is problematic.  Should be:
	 extern long double frexpl _PARAMS((long double, int *));
	Looks like the only case of this in <math.h>

nexttoward
nexttowardf
nexttowardl

	any plans to add these?