[newlib-cygwin] Cygwin: fix declaration of fhandler_socket::socketpair

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=ea543d3ffa129dd4976aa19d47cf6c8f7ce09a11

commit ea543d3ffa129dd4976aa19d47cf6c8f7ce09a11
Author: Corinna Vinschen <cori...@vinschen.de>
Date:   Fri Feb 16 17:34:57 2018 +0100

    Cygwin: fix declaration of fhandler_socket::socketpair
    
    Signed-off-by: Corinna Vinschen <cori...@vinschen.de>

Diff:
---
 winsup/cygwin/fhandler.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index c24304b..ab6fb6e 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -588,8 +588,8 @@ class fhandler_socket: public fhandler_base
   int getsockname (struct sockaddr *name, int *namelen);
   int getpeername (struct sockaddr *name, int *namelen);
   int getpeereid (pid_t *pid, uid_t *euid, gid_t *egid);
-  socketpair (int af, int type, int protocol, int flags,
-             fhandler_socket *fh_out);
+  int socketpair (int af, int type, int protocol, int flags,
+                 fhandler_socket *fh_out);
 
   int open (int flags, mode_t mode = 0);
   void __reg3 read (void *ptr, size_t& len);