HEADS UP: No gcc by default in -HEAD on platforms where clang is cc

[S.N.Grigoriev]

Hi list,

after upgrading to r255423 (make buildworld && make buildkernel && make installkernel && make installworld && reboot; make delete-old && make delete-old-libs) I cannot build the system with the WITH_GCC=yes and WITH_GNUCXX=yes options in my src.conf. The following error occures:

--- libgssapi_krb5.so.10 ---
building shared library libgssapi_krb5.so.10
--- gnu/lib__L ---
/usr/src/gnu/lib/libstdc++/../../../contrib/libstdc++/src/list.cc:61:3: error: use of undeclared identifier '_List_node_base'
  _List_node_base::swap(_List_node_base& __x, _List_node_base& __y)
  ^
/usr/src/gnu/lib/libstdc++/../../../contrib/libstdc++/src/list.cc:61:25: error: use of undeclared identifier '_List_node_base'; did you mean '__list_node_base'?
  _List_node_base::swap(_List_node_base& __x, _List_node_base& __y)
                        ^~~~~~~~~~~~~~~
                        __list_node_base
/usr/obj/usr/src/tmp/usr/include/c++/v1/list:190:8: note: '__list_node_base' declared here
struct __list_node_base
       ^
/usr/src/gnu/lib/libstdc++/../../../contrib/libstdc++/src/list.cc:61:25: error: no template named '_List_node_base'; did you mean '__list_node_base'?
  _List_node_base::swap(_List_node_base& __x, _List_node_base& __y)
                        ^~~~~~~~~~~~~~~
                        __list_node_base
/usr/obj/usr/src/tmp/usr/include/c++/v1/list:190:8: note: '__list_node_base' declared here
struct __list_node_base
       ^
/usr/src/gnu/lib/libstdc++/../../../contrib/libstdc++/src/list.cc:61:25: error: use of class template '__list_node_base' requires template arguments
  _List_node_base::swap(_List_node_base& __x, _List_node_base& __y)
                        ^
/usr/obj/usr/src/tmp/usr/include/c++/v1/list:190:8: note: template is declared here
struct __list_node_base
       ^

Without options listed above all works fine.

-- 
Regards,
Serguey.