fix for 2.4.6 bug should be properly enclosed to not break other versions.

sql/CMakeLists.txt

@@ -90,12 +90,14 @@ TARGET_LINK_LIBRARIES(mysqld
 
 SET_TARGET_PROPERTIES(mysqld PROPERTIES OUTPUT_NAME mysqld${MYSQLD_EXE_SUFFIX})
 
+IF(cmake_version EQUAL 20406)
 # Work around for 2.4.6 bug, OUTPUT_NAME will not set the right .PDB
 # file name. Note that COMPILE_FLAGS set some temporary pdb during build,
 # LINK_FLAGS sets the real one.
 SET_TARGET_PROPERTIES(mysqld PROPERTIES
                       COMPILE_FLAGS "/Fd${CMAKE_CFG_INTDIR}/mysqld${MYSQLD_EXE_SUFFIX}.pdb"
                       LINK_FLAGS  "/PDB:${CMAKE_CFG_INTDIR}/mysqld${MYSQLD_EXE_SUFFIX}.pdb")
+ENDIF(cmake_version EQUAL 20406)
 
 IF(EMBED_MANIFESTS)
   MYSQL_EMBED_MANIFEST("mysqld" "asInvoker")