libstdc++6 breaks libboost-date-time1.55.0

[Alex Yang <i@gsalex.net>]

I am using debian sid. After a recent list-upgrade, gnome-shell was removed.
I found this is because the libstdc++6_5.2.1-14_amd64 package breaks the libboost-date-time1.55.0.

Console output as below:

# aptitude install gnome-shell
The following NEW packages will be installed:
evolution-data-server{a} gdm3{a} gnome-contacts{a} gnome-shell libboost-date-time1.55.0{a} 
libebook-1.2-16{a} libebook-contacts-1.2-1{a} libedata-book-1.2-25{a} libfolks-eds25{a} 
libphonenumber6{a} 
0 packages upgraded, 10 newly installed, 0 to remove and 0 not upgraded.
Need to get 1,166 kB/4,654 kB of archives. After unpacking 33.2 MB will be used.
The following packages have unmet dependencies:
libstdc++6 : Breaks: libboost-date-time1.55.0 but 1.55.0+dfsg-4 is to be installed.