[boost] [config] including typeinfo in dinkumware.hpp when RTTI is disabled

Subject: [boost] [config] including typeinfo in dinkumware.hpp when RTTI is disabled
From: Edward Diener (eldiener_at_[hidden])
Date: 2013-11-01 09:38:11

Evidently the only way to currently compile clang on Windows using the 
VC++ RTL is to compile without RTTI and exception handling in its VC++ 
emulation ( options -D_HAS_EXCEPTIONS=0 /GR- ). This may be totally 
unrealistic for Boost. Nonetheless with these compiler options, when the 
dinkumware.hpp is being used by Boost config, it is including typeinfo 
and this is causing a problem:

  c:\Program Files\Microsoft Visual Studio 
10.0\VC\INCLUDE\typeinfo(156,10) :  error: unknown class name 
'exception'; did you mean '_exception'?
         : public exception

Is it realistic in dinkumware.hpp to not include typeinfo if RTTI is not 
enabled ? Or is it just more realistic to say that compiling Boost 
libraries with RTTI disabled is not going to work ?