[PATCH] Fix recent fmemopen breakage

[Franz Sirl]

Hi,

the last change to fmemopen.c is a bit optimistic, it's not OK to free mem we 
didn't allocate, it may be a static buffer. The patch makes the testsuite 
happy again.

Also included a small linuxthreads warning fix, it may be the wrong solution 
though, cause I find it a bit strange that testandset and __comapare_and_swap 
take differing kind of pointers.

Franz.

	* libio/fmemopen.c (fmemopen_close): Don't free buffer if we didn't allocate 
	it.


	* linuxthreads/spinlock.h: Warning fix.