Bug#26294: library name conflict between MySQL 4.x, 5.0 and Qt 3.3

When linking with some external programs, "multiple definition 
of `init_time'"

Rename init_time() to my_init_time() to avoid collision with other
libraries (particularly libmng).

client/mysqlbinlog.cc

@@ -1474,7 +1474,7 @@ int main(int argc, char** argv)
   DBUG_ENTER("main");
   DBUG_PROCESS(argv[0]);
 
-  init_time(); // for time functions
+  my_init_time(); // for time functions
 
   parse_args(&argc, (char***)&argv);
   defaults_argv=argv;

include/my_time.h

@@ -94,7 +94,7 @@ long calc_daynr(uint year,uint month,uint day);
 uint calc_days_in_year(uint year);
 uint year_2000_handling(uint year);
 
-void init_time(void);
+void my_init_time(void);
 
 
 /*

sql-common/my_time.c

@@ -704,9 +704,9 @@ int check_time_range(struct st_mysql_time *my_time, int *warning)
   Prepare offset of system time zone from UTC for my_system_gmt_sec() func.
 
   SYNOPSIS
-    init_time()
+    my_init_time()
 */
-void init_time(void)
+void my_init_time(void)
 {
   time_t seconds;
   struct tm *l_time,tm_tmp;
@@ -795,7 +795,7 @@ long calc_daynr(uint year,uint month,uint day)
   NOTES
     The idea is to cache the time zone offset from UTC (including daylight 
     saving time) for the next call to make things faster. But currently we 
-    just calculate this offset during startup (by calling init_time() 
+    just calculate this offset during startup (by calling my_init_time() 
     function) and use it all the time.
     Time value provided should be legal time value (e.g. '2003-01-01 25:00:00'
     is not allowed).

sql/init.cc

@@ -30,7 +30,7 @@ void unireg_init(ulong options)
   wild_many='%'; wild_one='_'; wild_prefix='\\'; /* Change to sql syntax */
 
   current_pid=(ulong) getpid();		/* Save for later ref */
-  init_time();				/* Init time-functions (read zone) */
+  my_init_time();			/* Init time-functions (read zone) */
 #ifndef EMBEDDED_LIBRARY
   my_abort_hook=unireg_abort;		/* Abort with close of databases */
 #endif

sql/tztime.cc

@@ -1035,7 +1035,7 @@ public:
     return lowest possible my_time_t in case of ambiguity or if we
     provide time corresponding to the time-gap.
 
-    You should call init_time() function before using this function.
+    You should call my_init_time() function before using this function.
 
   RETURN VALUE
     Corresponding my_time_t value or 0 in case of error
@@ -2757,7 +2757,7 @@ main(int argc, char **argv)
   }
   printf("gmt_sec_to_TIME = localtime for time_t in [1000000000,1100000000) range\n");
 
-  init_time();
+  my_init_time();
 
   /*
     Be careful here! my_system_gmt_sec doesn't fully handle unnormalized