The symbol versioning solution for libmysqlclient in mysql 5.1 was pretty
awful (export everything) and as of 5.5.8 the cmake build scripts have
forgotten the issue entirely.  So we now maintain our own list of exported
symbols and jam it into the build with this hack.


diff -Naur mysql-5.5.8.orig/libmysql/CMakeLists.txt mysql-5.5.8/libmysql/CMakeLists.txt
--- mysql-5.5.8.orig/libmysql/CMakeLists.txt	2010-12-03 12:58:26.000000000 -0500
+++ mysql-5.5.8/libmysql/CMakeLists.txt	2010-12-21 21:00:07.135311386 -0500
@@ -197,7 +197,7 @@
         SET(libmysql_link_flags)
       ENDIF()
       SET_TARGET_PROPERTIES(libmysql PROPERTIES LINK_FLAGS 
-        "${libmysql_link_flags} ${LINK_FLAG_NO_UNDEFINED}")
+        "${libmysql_link_flags} -Wl,--version-script=libmysql.version ${LINK_FLAG_NO_UNDEFINED}")
     ENDIF() 
     # clean direct output needs to be set several targets have the same name
     #(mysqlclient in this case)