trx0purge.c Fix a bug which might stop purge from running

buf0flu.c	Add an include to fix compile problem in non-inlined version

innobase/buf/buf0flu.c

@@ -21,6 +21,7 @@ Created 11/11/1995 Heikki Tuuri
 #include "ibuf0ibuf.h"
 #include "log0log.h"
 #include "os0file.h"
+#include "trx0sys.h"
 
 /* When flushed, dirty blocks are searched in neigborhoods of this size, and
 flushed along with the original page. */

innobase/trx/trx0purge.c

@@ -678,6 +678,8 @@ trx_purge_choose_next_log(void)
 
 	rseg = UT_LIST_GET_FIRST(trx_sys->rseg_list);
 
+	min_trx_no = ut_dulint_max;
+
 	min_rseg = NULL;
 	
 	while (rseg) {