diff --git a/libc/include/arpa/inet.h b/libc/include/arpa/inet.h
index 3ebb872..e78e7c5 100644
--- a/libc/include/arpa/inet.h
+++ b/libc/include/arpa/inet.h
@@ -31,7 +31,6 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <netinet/in.h>
-#include <netinet/in6.h>
 
 __BEGIN_DECLS
 
diff --git a/libc/include/netinet/in.h b/libc/include/netinet/in.h
index 77ae506..0ebd926 100644
--- a/libc/include/netinet/in.h
+++ b/libc/include/netinet/in.h
@@ -32,6 +32,7 @@
 #include <linux/socket.h>
 #include <linux/in.h>
 #include <linux/in6.h>
+#include <netinet/in6.h>
 
 __BEGIN_DECLS
 
@@ -39,6 +40,9 @@
 
 extern int bindresvport (int sd, struct sockaddr_in *sin);
 
+static const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
+static const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
+
 __END_DECLS
 
 #endif /* _NETINET_IN_H_ */
diff --git a/libc/include/netinet/in6.h b/libc/include/netinet/in6.h
index e645c48..2f5fee1 100644
--- a/libc/include/netinet/in6.h
+++ b/libc/include/netinet/in6.h
@@ -90,4 +90,12 @@
 
 #define INET6_ADDRSTRLEN 46
 
+#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
+#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
+
+#define IN6ADDR_ANY_INIT {{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}}
+
+#define ipv6mr_interface ipv6mr_ifindex
+
+
 #endif /* _NETINET_IN6_H */
diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index e3afdae..6603b3f 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -179,14 +179,41 @@
  *         to the CLOCK_MONOTONIC clock instead, to avoid any problems when
  *         the wall-clock time is changed brutally
  */
+int pthread_cond_timedwait_monotonic_np(pthread_cond_t         *cond,
+                                        pthread_mutex_t        *mutex,
+                                        const struct timespec  *abstime);
+
+/* BIONIC: DEPRECATED. same as pthread_cond_timedwait_monotonic_np()
+ * unfortunately pthread_cond_timedwait_monotonic has shipped already
+ */
 int pthread_cond_timedwait_monotonic(pthread_cond_t         *cond,
                                      pthread_mutex_t        *mutex,
                                      const struct timespec  *abstime);
 
+#define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1
+
+/* BIONIC: same as pthread_cond_timedwait, except the 'reltime' given refers
+ *         is relative to the current time.
+ */
+int pthread_cond_timedwait_relative_np(pthread_cond_t         *cond,
+                                     pthread_mutex_t        *mutex,
+                                     const struct timespec  *reltime);
+
+#define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1
+
+
+
 int pthread_cond_timeout_np(pthread_cond_t *cond,
                             pthread_mutex_t * mutex,
                             unsigned msecs);
 
+/* same as pthread_mutex_lock(), but will wait up to 'msecs' milli-seconds
+ * before returning. same return values than pthread_mutex_trylock though, i.e.
+ * returns EBUSY if the lock could not be acquired after the timeout
+ * expired.
+ */
+int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs);
+
 int pthread_key_create(pthread_key_t *key, void (*destructor_function)(void *));
 int pthread_key_delete (pthread_key_t);
 int pthread_setspecific(pthread_key_t key, const void *value);
diff --git a/libc/include/time.h b/libc/include/time.h
index 35c2358..5d1a0e2 100644
--- a/libc/include/time.h
+++ b/libc/include/time.h
@@ -79,9 +79,29 @@
 extern char*       strptime(const char *buf, const char *fmt, struct tm *tm);
 extern size_t      strftime(char *s, size_t max, const char *format, const struct tm *tm);
 
+/* ANDROID-BEGIN */
+struct strftime_locale {
+    const char *  mon[12];
+    const char *  month[12];
+    const char *  standalone_month[12];
+    const char *  wday[7];
+    const char *  weekday[7];
+    const char *  X_fmt;
+    const char *  x_fmt;
+    const char *  c_fmt;
+    const char *  am;
+    const char *  pm;
+    const char *  date_fmt;
+};
+
+extern size_t      strftime_tz(char *s, size_t max, const char *format, const struct tm *tm, const struct strftime_locale*  lc);
+/* ANDROID-END */
+
 extern char *ctime(const time_t *timep);
 extern char *ctime_r(const time_t *timep, char *buf);
 
+extern void  tzset(void);
+
 /* global includes */
 extern char*     tzname[];
 extern int       daylight;
@@ -89,7 +109,7 @@
 
 #define CLOCKS_PER_SEC     1000000
 
-extern clock_t   clock();
+extern clock_t   clock(void);
 
 /* BIONIC: extra linux clock goodies */
 extern int clock_getres(int, struct timespec *);