Fixed bugs found by buildbot:

- Use -Wno-uninitialized if -DFORCE_INIT_OF_VARS is not used, to avoid warnings about not initialized variables.
- Fixed compiler warnings
- Added a name for each thr_lock to get better error messages (This is needed to find out why 'archive.test' sometimes fails)


BUILD/SETUP.sh:
  Use -Wno-uninitialized if -DFORCE_INIT_OF_VARS is not used, to avoid warnings about not initialized variables.
BUILD/build_mccge.sh:
  Use -Wno-uninitialized if -DFORCE_INIT_OF_VARS is not used, to avoid warnings about not initialized variables.
client/mysqltest.cc:
  Fixed bug in remove_files_wildcards (the orignal code never removed anything)
extra/libevent/devpoll.c:
  Fixed compiler warning
include/thr_lock.h:
  Added a name for each thr_lock to get better error messages.
mysql-test/suite/maria/t/maria3.test:
  Speed up test.
mysys/thr_lock.c:
  Added a name for each thr_lock to get better error messages.
  Added a second 'check_locks' to find if something goes wrong in 'wake_up_waiters'.
sql/lock.cc:
  Added a name for each thr_lock to get better error messages.
storage/xtradb/fil/fil0fil.c:
  Fixed compiler warning

mysql-test/suite/maria/t/maria3.test

@@ -172,11 +172,13 @@ create table t1 (a bigint auto_increment, primary key(a), b char(255), c varchar
 let $1=1000;
 --disable_query_log
 --disable_warnings
+lock tables t1 write;
 while ($1)
 {
   insert into t1 () values();
   dec $1;
 }
+unlock tables;
 --enable_query_log
 update t1 set b=repeat('a',100) where a between 1 and 100;
 check table t1;

mysql-test/valgrind.supp

@@ -488,6 +488,21 @@
    fun:_ZL13plugin_dl_delPK19st_mysql_lex_string
 }
 
+{
+   dlsym memory loss from plugin on SuSE 11.1 x64
+   Memcheck:Leak
+   fun:*alloc
+   obj:/lib*/ld-*.so
+   obj:/lib*/ld-*.so
+   obj:/lib*/ld-*.so
+   obj:/lib*/libc-*.so
+   obj:/lib*/libdl-*.so
+   obj:/lib*/ld-*.so
+   obj:/lib*/libdl-*.so
+   fun:dlsym
+   fun:*plugin_dl_add*
+}
+
 {
    dlopen / ptread_cancel_init memory loss on Suse Linux 10.3 32/64 bit ver 1
    Memcheck:Leak