I am trying to upgrade gcc-4.8.1 and g++-4.8.1 to 4.8.2. I added the PPA containing g++-4.8.2, ran apt-get update and then when I try:

martin@martin-Studio-1537:~$ sudo apt-get upgrade

[sudo] password for martin: 

...

The following packages have been kept back:

  cpp-4.8 g++-4.8 gcc-4.8 gcc-4.8-base libasan0 libatomic1 libgcc-4.8-dev

  libgcc1 libgcc1-dbg libgfortran3 libgomp1 libitm1 libquadmath0

  libstdc++-4.8-dev libstdc++6 libstdc++6-4.8-dbg

0 upgraded, 0 newly installed, 0 to remove and 16 not upgraded.

the packages I need to upgrade are kept back. When I try:

martin@martin-Studio-1537:~$ sudo apt-get dist-upgrade

...

The following packages will be REMOVED:

  g++-4.8 gcc-4.8

The following packages will be upgraded:

  cpp-4.8 gcc-4.8-base libasan0 libatomic1 libgcc-4.8-dev libgcc1 libgcc1-dbg

  libgfortran3 libgomp1 libitm1 libquadmath0 libstdc++-4.8-dev libstdc++6

  libstdc++6-4.8-dbg

14 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.

Need to get 14.9 MB of archives.

After this operation, 32.4 MB disk space will be freed.

the system wants to remove g++-4.8 gcc-4.8.

When I try to install gcc-4.8 from Synaptic It wants to remove g++-4.8 and when I tell that it is ok to remove it, I get this error:

How can I install gcc-4.8.2 and g++-4.8.2?

EDIT:

As souravc suggested, I did

martin@martin-Studio-1537:~$ dpkg -l | grep "^rc" | awk '{print $2}'

and this is the result:

autoconf

bcmwl-kernel-source

dkms

lib64gcc1

libbotan-1.10-0

libc6-amd64

libc6-x32

libpcrecpp0:i386

libqt5clucene5:i386

libqt5declarative5:i386

libqt5designer5:i386

libqt5designercomponents5:i386

libqt5help5:i386

libqt5quickparticles5:i386

libqt5quicktest5:i386

libqt5script5:i386

libsigsegv2:i386

libx32gcc1

libx32stdc++6

linux-image-3.11.0-12-generic

linux-image-3.11.0-15-generic

linux-image-extra-3.11.0-12-generic

linux-image-extra-3.11.0-15-generic

usb-creator-gtk