[NaCl SDK] Second phase of enable glibc arm toolchain

native_client_sdk/src/libraries/nacl_io/syscalls/socket/sendto.c

Index: native_client_sdk/src/libraries/nacl_io/syscalls/socket/sendto.c
diff --git a/native_client_sdk/src/libraries/nacl_io/syscalls/socket/sendto.c b/native_client_sdk/src/libraries/nacl_io/syscalls/socket/sendto.c
index 03c62427afc832fa98089d52e9a695671986ecbc..cbab2d35ece1f0a969cf811f0d55e8cb3ccce59a 100644
--- a/native_client_sdk/src/libraries/nacl_io/syscalls/socket/sendto.c
+++ b/native_client_sdk/src/libraries/nacl_io/syscalls/socket/sendto.c
@@ -5,11 +5,11 @@
 #include "nacl_io/kernel_intercept.h"
 #include "nacl_io/kernel_wrap.h"
 
-#if defined(PROVIDES_SOCKET_API) && !defined(__GLIBC__)
+#if defined(PROVIDES_SOCKET_API) && !defined(NACL_GLIBC_OLD)
 
 ssize_t sendto(int fd, const void* buf, size_t len, int flags,
                const struct sockaddr* addr, socklen_t addrlen) {
   return ki_sendto(fd, buf, len, flags, addr, addrlen);
 }
 
-#endif  /* defined(PROVIDES_SOCKET_API) && !defined(__GLIBC__) */
+#endif  /* defined(PROVIDES_SOCKET_API) && !defined(NACL_GLIBC_OLD) */