[PATCH] fix build on uClibc

Currently we fail on uclibc like below

| In file included from /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-uclibc/sysroots/qemuarm/usr/include/sys/procfs.h:32:0,
|                  from /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-uclibc/sysroots/qemuarm/usr/include/sys/ucontext.h:26,
|                  from /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-uclibc/sysroots/qemuarm/usr/include/signal.h:392,
|                  from ../../gl/signal.h:52,
|                  from ../../gl/sys/select.h:58,
|                  from /home/kraj/work/angstrom/sources/openembedded-core/build/tmp-uclibc/sysroots/qemuarm/usr/include/sys/types.h:220,
|                  from ../../gl/sys/types.h:28,
|                  from ../../lib/includes/gnutls/gnutls.h:46,
|                  from ex-cxx.cpp:3:
| ../../gl/sys/time.h:396:66: error: conflicting declaration 'void* restrict'
| ../../gl/sys/time.h:396:50: error: 'restrict' has a previous declaration as 'timeval* restrict'
| make[4]: *** [ex-cxx.o] Error 1
| make[4]: *** Waiting for unfinished jobs....


GCC detects that we call 'restrict' as param name in function
signatures and complains since both params are called 'restrict'
therefore we use __restrict to denote the C99 keywork

This only happens of uclibc since this code is not excercised with
eglibc otherwise we will have same issue there too

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

Index: gnutls-2.12.14/gl/sys_time.in.h
===================================================================
--- gnutls-2.12.14.orig/gl/sys_time.in.h	2012-01-15 10:54:39.517285351 -0800
+++ gnutls-2.12.14/gl/sys_time.in.h	2012-01-15 10:59:23.773299108 -0800
@@ -82,20 +82,20 @@
 #    define gettimeofday rpl_gettimeofday
 #   endif
 _GL_FUNCDECL_RPL (gettimeofday, int,
-                  (struct timeval *restrict, void *restrict)
+                  (struct timeval *__restrict, void *__restrict)
                   _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (gettimeofday, int,
-                  (struct timeval *restrict, void *restrict));
+                  (struct timeval *__restrict, void *__restrict));
 #  else
 #   if !@HAVE_GETTIMEOFDAY@
 _GL_FUNCDECL_SYS (gettimeofday, int,
-                  (struct timeval *restrict, void *restrict)
+                  (struct timeval *__restrict, void *__restrict)
                   _GL_ARG_NONNULL ((1)));
 #   endif
 /* Need to cast, because on glibc systems, by default, the second argument is
                                                   struct timezone *.  */
 _GL_CXXALIAS_SYS_CAST (gettimeofday, int,
-                       (struct timeval *restrict, void *restrict));
+                       (struct timeval *__restrict, void *__restrict));
 #  endif
 _GL_CXXALIASWARN (gettimeofday);
 # elif defined GNULIB_POSIXCHECK