[Patch] Configure broken for Solaris 2.6 (PR#12014)

[David Collier-Brown]

I wrote;
| who is looking for the statfs bug as we speak

	stafts???!!!!
	We dont **have** no steenkin statfs!

	Seriously, though, this test should fail utterly
	on Solaris after roughly 5.1, as statfs was one
	of the non-standard additions that were really
	for other shared libraries to use.  The weak
	visibility rules of the then linker made it
	acessable...

--dave