------- Comment #7 from dave dot korn dot cygwin at gmail dot com 2009-06-25 15:37 ------- Hmm, I'm getting somewhere with this.
By compiling the g++ testsuite "ptrflags.C" case with --save-temps, manually hacking all the superfluous typeinfo stuff out, and re-assembling and linking it, I can turn a FAIL into a PASS, with all the typeinfo and related stuff being imported from the DLL. So I think typeinfo can be made to work, and work with both __GXX_MERGED_TYPEINFO_NAMES and __GXX_TYPEINFO_EQUALITY_INLINE. All I need to do is stop the compiler from emitting comdat definitions of items with vague linkage when they are dllimported, or perhaps make the linker prefer an import over a comdat section when the same symbol could be resolved by either. Or perhaps both. I think the linker fix is what you were suggesting when you said > since if we depend on auto-import than > we should treat dll imports thae same as static lib imports More later. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40068
