Update to NSPR 4.10.7 Beta 3.

nspr/pr/include/md/_linux.h

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
  * This file is used by not only Linux but also other glibc systems
  * such as GNU/Hurd and GNU/k*BSD.
  */
 
@@ skipping 62 matching lines @@
 
 /*
  * Elf linux supports dl* functions
  */
 #define HAVE_DLL
 #define USE_DLFCN
 #if defined(ANDROID)
 #define NO_DLOPEN_NULL
 #endif
 
-#ifdef __FreeBSD_kernel__
+#if defined(__FreeBSD_kernel__) || defined(__GNU__)
 #define _PR_HAVE_SOCKADDR_LEN
 #endif
 
 #if defined(__i386__)
 #define _PR_HAVE_ATOMIC_OPS
 #define _MD_INIT_ATOMIC()
 extern PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val);
 #define _MD_ATOMIC_INCREMENT          _PR_x86_AtomicIncrement
 extern PRInt32 _PR_x86_AtomicDecrement(PRInt32 *val);
 #define _MD_ATOMIC_DECREMENT          _PR_x86_AtomicDecrement
@@ skipping 35 matching lines @@
 extern PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val);
 #define _MD_ATOMIC_INCREMENT          _PR_ppc_AtomicIncrement
 extern PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val);
 #define _MD_ATOMIC_DECREMENT          _PR_ppc_AtomicDecrement
 extern PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val);
 #define _MD_ATOMIC_ADD                _PR_ppc_AtomicAdd
 extern PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval);
 #define _MD_ATOMIC_SET                _PR_ppc_AtomicSet
 #endif
 
+#if defined(__powerpc64__)
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
+/* Use GCC built-in functions */
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
+#endif
+#endif
+
 #if defined(__alpha)
 #define _PR_HAVE_ATOMIC_OPS
 #define _MD_INIT_ATOMIC()
 #define _MD_ATOMIC_ADD(ptr, i) ({               \
     PRInt32 __atomic_tmp, __atomic_ret;   \
     __asm__ __volatile__(                       \
     "1: ldl_l   %[ret], %[val]          \n"     \
     "   addl    %[ret], %[inc], %[tmp]  \n"     \
     "   addl    %[ret], %[inc], %[ret]  \n"     \
     "   stl_c   %[tmp], %[val]          \n"     \
@@ skipping 500 matching lines @@
         int timeout);
 #define _MD_POLL __syscall_poll
 #endif
 
 /* For writev() */
 #include <sys/uio.h>
 
 extern void _MD_linux_map_sendfile_error(int err);
 
 #endif /* nspr_linux_defs_h___ */