newlocale(3) appears to be broken?

[Steve Kargl]

It appears that newlocale(3) is broken.

First, the manpage indicates that one
needs to use

#include <xlocale>

which leads to

troutmask:sgk[204] cc -o z r.c
r.c:1:10: fatal error: 'xlocale' file not found
#include <xlocale>
         ^
1 error generated.

next the manpage says 

STANDARDS
     This function conforms to IEEE Std 1003.1-2008 (``POSIX.1'').

However, http://pubs.opengroup.org/stage7tc1/functions/newlocale.html
says newlocale is declared in locale.h.  

Now consider

% cat r.c

#include <locale.h>

int
main(void)
{
   locale_t a;
   a = newlocale(0, "C", 0);
   if (a)
      return 0;
   else
      return 1;
}

troutmask:sgk[206] cc -o z -static r.c && ./z
Segmentation fault (core dumped)

troutmask:sgk[206] cc -o z -static r.c && ./z
Segmentation fault (core dumped)
troutmask:sgk[207] gdb782 z z.core
[New process 100313]
Core was generated by `z'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000415798 in newlocale ()
(gdb) bt
#0  0x0000000000415798 in newlocale ()
#1  0x0000000000400434 in main ()

-- 
Steve