query cache code can be excluded from server

sql/mysqld.cc:
  fake query_cache_size parameter if query cache code excluded from server

BUILD/compile-pentium-debug

@@ -6,7 +6,7 @@ path=`dirname $0`
 extra_flags="$pentium_cflags $debug_cflags"
 c_warnings="$c_warnings $debug_extra_warnings"
 cxx_warnings="$cxx_warnings $debug_extra_warnings"
-extra_configs="$pentium_configs $debug_configs $static_link"
+extra_configs="$pentium_configs $debug_configs $static_link --without-query-cache"
 
 extra_configs="$extra_configs "
 

Docs/manual.texi

@@ -36325,6 +36325,8 @@ Following are some performance data for the query cache
 @item
 If you want to disable the query cache code set @code{query_cache_size=0}.
 By disabling the query cache code there is no noticeable overhead.
+(query cache can be excluded from code with help of configure option
+@code{--without-query-cache}) 
 @item
 If all of the queries you're preforming are simple (such as selecting a
 row from a table with one row); but still differ so that the queries can
@@ -48918,6 +48920,8 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
 
 @itemize @bullet
 @item
+New configure option --without-query-cache. 
+@item
 Memory allocation strategy for 'root memory' changed. Block size now grows 
 with number of allocated blocks.
 @item

configure.in

@@ -1823,7 +1823,7 @@ AC_ARG_WITH(embedded-server,
 )
 
 AC_ARG_WITH(query_cache,
-    [  --without-query-cache  Don not build query cache in embedded server.],
+    [  --without-query-cache   Do not build query cache.],
     [with_query_cache=$withval],
     [with_query_cache=yes]
 )

include/my_global.h

@@ -1023,12 +1023,4 @@ typedef union {
 #define C_MODE_END
 #endif
 
-/* 
-   Now if query is taken off then tests with query cache fails
-   SANJA TODO: remove this when problem with mysql-test will be solved
-*/
-#if defined(MYSQL_SERVER) && !defined(HAVE_QUERY_CACHE)
-#define HAVE_QUERY_CACHE
-#endif
-
 #endif /* _global_h */

mysql-test/t/innodb_cache.test

 -- source include/have_innodb.inc
+-- source include/have_query_cache.inc
 
 #
 # Without auto_commit.

sql/mysqld.cc

@@ -291,8 +291,9 @@ ulong keybuff_size,sortbuff_size,max_item_sort_length,table_cache_size,
 ulong com_stat[(uint) SQLCOM_END], com_other;
 ulong slave_net_timeout;
 ulong thread_cache_size=0, binlog_cache_size=0, max_binlog_cache_size=0;
+ulong query_cache_size=0;
 #ifdef HAVE_QUERY_CACHE
-ulong query_cache_size=0, query_cache_limit=0, query_cache_startup_type=1;
+ulong query_cache_limit=0, query_cache_startup_type=1;
 Query_cache query_cache;
 #endif
 
@@ -3048,8 +3049,10 @@ CHANGEABLE_VAR changeable_vars[] = {
 #ifdef HAVE_QUERY_CACHE
   { "query_cache_limit",       (long*) &query_cache_limit,
      1024*1024L, 0, ULONG_MAX, 0, 1},
+#endif /*HAVE_QUERY_CACHE*/
   { "query_cache_size",        (long*) &query_cache_size,
       0, 0, ULONG_MAX, 0, 1},
+#ifdef HAVE_QUERY_CACHE
   { "query_cache_startup_type",(long*) &query_cache_startup_type,
       1, 0, 2, 0, 1},
 #endif /*HAVE_QUERY_CACHE*/