BZ #2450 fix breaks 64-bit builds

[Alan Modra]

This change

	* posix/unistd.h: Match return value of readlink to what POSIX
	says these days.

results in build failure on powerpc64-linux.

../posix/bits/unistd.h:95: error: conflicting types for âreadlinkâ
../posix/unistd.h:775: error: previous declaration of âreadlinkâ was here


2006-04-05  Alan Modra  <amodra@bigpond.net.au>

	* posix/bits/unistd.h (readlink): Update.

Index: posix/bits/unistd.h
===================================================================
RCS file: /cvs/glibc/libc/posix/bits/unistd.h,v
retrieving revision 1.10
diff -u -p -r1.10 unistd.h
--- posix/bits/unistd.h	8 Aug 2005 18:58:33 -0000	1.10
+++ posix/bits/unistd.h	5 Apr 2006 06:07:36 -0000
@@ -89,7 +89,7 @@ extern int __REDIRECT_NTH (__readlink_al
 			    char *__restrict __buf, size_t __len), readlink)
      __nonnull ((1, 2)) __wur;
 
-extern __always_inline __nonnull ((1, 2)) __wur int
+extern __always_inline __nonnull ((1, 2)) __wur ssize_t
 __NTH (readlink (__const char *__restrict __path, char *__restrict __buf,
 		 size_t __len))
 {

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre