While looking at c++/47263 I noticed that eh_ptr.cc doesn't compile in
C++0x mode because __safe_bool isn't defined, but is used. Is this the
way you'd like to fix that?
commit e018fa18d85e6974b3d66a12c5b7ae9f77b76683
Author: Jason Merrill <ja...@redhat.com>
Date: Sun May 22 16:31:20 2011 -0400
* libsupc++/exception_ptr.h: Fix compilation in C++0x mode.
diff --git a/libstdc++-v3/libsupc++/exception_ptr.h b/libstdc++-v3/libsupc++/exception_ptr.h
index 26117cd..00b30fd 100644
--- a/libstdc++-v3/libsupc++/exception_ptr.h
+++ b/libstdc++-v3/libsupc++/exception_ptr.h
@@ -97,7 +97,9 @@ namespace std
exception_ptr(exception_ptr&& __o) throw()
: _M_exception_object(__o._M_exception_object)
{ __o._M_exception_object = 0; }
-#else
+#endif
+
+#if !defined (__GXX_EXPERIMENTAL_CXX0X__) || defined (_GLIBCXX_EH_PTR_COMPAT)
typedef void (exception_ptr::*__safe_bool)();
// For construction from nullptr or 0.
