Merge trift2.:/MySQL/M41/tmp-4.1

into  trift2.:/MySQL/M50/merge-5.0

configure.in

@@ -1736,6 +1736,12 @@ AC_ARG_WITH(client-ldflags,
     [CLIENT_EXTRA_LDFLAGS=])
 AC_SUBST(CLIENT_EXTRA_LDFLAGS)
 
+AC_ARG_WITH(mysqld-libs,
+    [  --with-mysqld-libs   Extra libraries to link with for mysqld],
+    [MYSQLD_EXTRA_LIBS=$withval],
+    [MYSQLD_EXTRA_LIBS=])
+AC_SUBST(MYSQLD_EXTRA_LIBS)
+
 AC_ARG_WITH(lib-ccflags,
     [  --with-lib-ccflags      Extra CC options for libraries],
     [LIB_EXTRA_CCFLAGS=$withval],

libmysqld/lib_sql.cc

@@ -590,7 +590,7 @@ void *create_embedded_thd(int client_flag)
   thd->set_time();
   thd->init_for_queries();
   thd->client_capabilities= client_flag;
-  thd->real_id= (pthread_t) thd;
+  thd->real_id= (pthread_t)thd->thread_id;
 
   thd->db= NULL;
   thd->db_length= 0;

sql/Makefile.am

@@ -43,7 +43,7 @@ mysqld_LDADD =		@MYSQLD_EXTRA_LDFLAGS@ \
                         @innodb_system_libs@ \
 			@ndbcluster_libs@ @ndbcluster_system_libs@ \
 			$(LDADD)  $(CXXLDFLAGS) $(WRAPLIBS) @LIBDL@ \
-                        $(yassl_libs) $(openssl_libs)
+                        $(yassl_libs) $(openssl_libs) @MYSQLD_EXTRA_LIBS@
 
 noinst_HEADERS =	item.h item_func.h item_sum.h item_cmpfunc.h \
 			item_strfunc.h item_timefunc.h item_uniq.h \

sql/item_func.cc

@@ -3578,7 +3578,7 @@ longlong Item_func_release_lock::val_int()
   else
   {
 #ifdef EMBEDDED_LIBRARY
-    if (ull->locked && pthread_equal(current_thd->real_id,ull->thread))
+    if (ull->locked && (current_thd->real_id == ull->thread))
 #else
     if (ull->locked && pthread_equal(pthread_self(),ull->thread))
 #endif