[Bug c++/50594] Option -fwhole-program discards replaced new operator for std::string

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50594

--- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-10-04 09:54:57 UTC ---
I don't think they're special to the front end either, it transforms "new T"
into a call to the relevant library allocation function and then invokes a
constructor.  The allocation functions are just ordinary functions implemented
in libsupc++ but as weak symbols so they can be overridden.  If we just declare
them externally_visible in libsupc++'s <new> won't that work?