bug#14433 - archive uses wrong ref_length

mysql-test/t/func_group.test:
  re-enable the test

mysql-test/t/disabled.def

@@ -15,4 +15,3 @@ rpl_relayrotate : Unstable test case, bug#12429
 rpl_until       : Unstable test case, bug#12429
 rpl_deadlock    : Unstable test case, bug#12429
 kill            : Unstable test case, bug#9712
-archive_gis     : The test fails on 32bit Linux

mysql-test/t/func_group.test

@@ -2,8 +2,6 @@
 # simple test of all group functions
 #
 
---source include/have_innodb.inc
-
 --disable_warnings
 drop table if exists t1,t2;
 --enable_warnings
@@ -545,10 +543,12 @@ DROP TABLE t1;
 # Bug #12882  	min/max inconsistent on empty table
 #
 
+--disable_warnings
 create table t1m (a int) engine=myisam;
 create table t1i (a int) engine=innodb;
 create table t2m (a int) engine=myisam;
 create table t2i (a int) engine=innodb;
+--enable_warnings
 insert into t2m values (5);
 insert into t2i values (5);
 

sql/ha_archive.cc

@@ -233,7 +233,8 @@ ha_archive::ha_archive(TABLE *table_arg)
   buffer.set((char *)byte_buffer, IO_SIZE, system_charset_info);
 
   /* The size of the offset value we will use for position() */
-  ref_length = sizeof(z_off_t);
+  ref_length = 2 << ((zlibCompileFlags() >> 6) & 3);
+  DBUG_ASSERT(ref_length <= sizeof(z_off_t));
 }
 
 /*