Fix an issue with the IBM C++ compiler

Joerg Bruehe · Joerg Bruehe · commit bcf1a3aca1a1 · 2010-03-24T20:15:06.000+01:00
which was detected during the build of 5.5.3-m3.
This requires version 9 of IBM C++ to help.

More fixes will still be needed, it is very strict
(or rather: a bit picky?) about templates.
--BZR--
revision-id: joerg@mysql.com-20100324191506-u2rr3s1fsb9o3vkw
property-branch-nick: clone-5.5
testament3-sha1: afda01fdcbcfce0411ce4ffad4f78d97cca77194
diff --git a/sql/mdl.h b/sql/mdl.h
@@ -15,6 +15,14 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+#if defined(__IBMC__) || defined(__IBMCPP__)
+/* Further down, "next_in_lock" and "next_in_context" have the same type,
+   and in "sql_plist.h" this leads to an identical signature, which causes
+   problems in function overloading.
+*/
+#pragma namemangling(v5)
+#endif
+
 
 #include "sql_plist.h"
 #include <my_sys.h>
