Alan W. Irwin wrote: > On 2008-10-10 11:49-0700 Alan W. Irwin wrote: > >> Later today I hope to report visibility fixes for Tcl, psttc, and the >> cairo >> device driver... > > > Just finished the tclmatrixd and plplottcltk namespace changes (revision > 8878). I also dropped the PLDLLIMPEXP* macros from the source code as > much > as possible and left it to the headers to use the macros instead. The > tcl/tk build now works (again?) with export CC='gcc -fvisibility=hidden'. > ctest for tcl also works. > > I actually don't have any idea why this works. Here are the nm results > Hi Alan,
the reason is actually very simple: Tcl registers the pointers to these functions itself, rather than have the linker do it. That means the functions need to be visible to the call to Tcl_CreateCommand (or Tcl_CreateObjCommand) and these calls reside in the initialisation routine - the only one that needs to be exported. Regards, Arjen ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
