On Tue, Apr 27, 2010 at 3:29 PM, David Maxwell <[email protected]> wrote: > Hi all: > > There appears to be a bug in Apple's gcc shipping with OS X 10.6 related to > run time type identification, templated derived classes, and shared > libraries. While this is not a bug in libmesh, it affects libmesh. Using > libmesh version 3802, examples 9 and 14 (among others) compile but throw a > run time exception because a dynamic cast fails. > > I was able to work around this problem by changing the line > > libmesh_CXXSHAREDFLAG = -dynamiclib > -Wl,-undefined,dynamic_lookup,-flat_namespace > > in Make.common to > > libmesh_CXXSHAREDFLAG = -ldylib1.o -dynamiclib > -Wl,-undefined,dynamic_lookup,-flat_namespace,-no_compact_linkedit > > The dynamic casts are now fine. There are instances of a few other projects > out there running into this bug: > > http://openradar.appspot.com/7512422 > http://raichoo.blogspot.com/2009/09/bug-snow-leopards-dynamiccast-und.html > http://www.mail-archive.com/[email protected]/msg00974.html > > It might be worthwhile to update libmesh's configure with a workaround.
Thanks for the information! -- John ------------------------------------------------------------------------------ _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
