On Sat, Jul 30, 2005 at 09:33:45PM +0100, Mike Hearn wrote: > Hi, > > One problem with the parallel C++ ABI versioning (which makes it not so > useful) is that symbols in the libstdc++ namespaces are put into the > generated binary if you use the STL. Those generated symbols are *not* > symbol versioned so conflicts can still occur.
You may wish to read the proceedings from this year's GCC summit, where another solution was presented by some gentlemen from Intel. For various reasons, symbol versioning is not a useful solution to this problem. No one objected to their solution in principle, AFAICT, although there was some discussion afterwards about whether the use of strong namespace using was really necessary. I'm afraid I don't understand C++ well enough to explain the rest of that conversation. May just need someone to do the work. -- Daniel Jacobowitz CodeSourcery, LLC