Fix pointers to documentation

Do not print pointer to the 5.1 documentation from within MySQL 5.5.

Instead of hardcoding the MySQL version, use the MAJOR_VERSION and
MINOR_VERSION CMake variables defined at top-level.

storage/innobase/CMakeLists.txt

@@ -19,6 +19,10 @@ INCLUDE(CheckFunctionExists)
 INCLUDE(CheckCSourceCompiles)
 INCLUDE(CheckCSourceRuns)
 
+# Make MySQL version available to InnoDB
+ADD_DEFINITIONS("-DMYSQL_MAJOR_VERSION=${MAJOR_VERSION}")
+ADD_DEFINITIONS("-DMYSQL_MINOR_VERSION=${MINOR_VERSION}")
+
 # OS tests
 IF(UNIX)
   IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")

storage/innobase/include/univ.i

@@ -44,6 +44,11 @@ Created 1/20/1994 Heikki Tuuri
 #include "hb_univ.i"
 #endif /* UNIV_HOTBACKUP */
 
+/* aux macros to convert M into "123" (string) if M is defined like
+#define M 123 */
+#define _IB_TO_STR(s)	#s
+#define IB_TO_STR(s)	_IB_TO_STR(s)
+
 #define INNODB_VERSION_MAJOR	1
 #define INNODB_VERSION_MINOR	1
 #define INNODB_VERSION_BUGFIX	4
@@ -57,16 +62,14 @@ component, i.e. we show M.N.P as M.N */
 #define INNODB_VERSION_SHORT	\
 	(INNODB_VERSION_MAJOR << 8 | INNODB_VERSION_MINOR)
 
-/* auxiliary macros to help creating the version as string */
-#define __INNODB_VERSION(a, b, c)	(#a "." #b "." #c)
-#define _INNODB_VERSION(a, b, c)	__INNODB_VERSION(a, b, c)
-
 #define INNODB_VERSION_STR			\
-	_INNODB_VERSION(INNODB_VERSION_MAJOR,	\
-			INNODB_VERSION_MINOR,	\
-			INNODB_VERSION_BUGFIX)
+	IB_TO_STR(INNODB_VERSION_MAJOR) "."	\
+	IB_TO_STR(INNODB_VERSION_MINOR) "."	\
+	IB_TO_STR(INNODB_VERSION_BUGFIX)
 
-#define REFMAN "http://dev.mysql.com/doc/refman/5.1/en/"
+#define REFMAN "http://dev.mysql.com/doc/refman/"	\
+	IB_TO_STR(MYSQL_MAJOR_VERSION) "."		\
+	IB_TO_STR(MYSQL_MINOR_VERSION) "/en/"
 
 #ifdef MYSQL_DYNAMIC_PLUGIN
 /* In the dynamic plugin, redefine some externally visible symbols