I was getting the same thing last night as I am this morning. Becareful performing a d-u.
terroreek, how is this situation for you now? I'm having a very similar situation:
apt-get dist-upgrade -d
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be REMOVED:
gccxml gobjc gobjc-4.8 linux-headers-3.13-6.towo-siduction-amd64
linux-headers-3.13-7.towo-siduction-amd64
linux-headers-3.14-1.towo-siduction-amd64
linux-headers-3.14-3.towo-siduction-amd64
linux-headers-3.14-4.towo-siduction-amd64 linux-headers-siduction-amd64
The following packages have been kept back:
cpp-4.8 g++-4.8 gcc-4.8 gcc-4.8-base gcc-4.9-base jitsi libasan0 libatomic1
libgcc-4.8-dev libgcc1 libgfortran3 libgomp1 libitm1 libobjc-4.8-dev
libobjc4 libquadmath0 libstdc++-4.8-dev libstdc++6 libtsan0