依存関係の破損により、Apt-getがブロックされました（libc6、Linux Mint）。

現在、一部の未解決の依存関係が原因でApt-getが完全にブロックされており、アップグレードを実行すると次のエラーが発生します。

sudo apt-get upgrade
Reading package lists... Done                                                                                                        
Building dependency tree                                                                                                             
Reading state information... Done                                                                                                    
You might want to run 'apt-get -f install' to correct these.                                                                         
The following packages have unmet dependencies:                                                                                      
 gcc-4.8-multilib : Depends: libc6-dev-i386 (>= 2.11) but it is not installed                                                        
 libc6-dev-x32 : Depends: libc6-dev-i386 (= 2.19-0ubuntu6.5) but it is not installed                                                 
E: Unmet dependencies. Try using -f.      

-f install オプションを実行すると、次のエラーメッセージが表示されます。

sudo apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following extra packages will be installed:
  libc6-dev-i386
Recommended packages:
  gcc-multilib
The following NEW packages will be installed:
  libc6-dev-i386
0 upgraded, 1 newly installed, 0 to remove and 96 not upgraded.
27 not fully installed or removed.
Need to get 0 B/1,151 kB of archives.
After this operation, 6,337 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 190746 files and directories currently installed.)
Preparing to unpack .../libc6-dev-i386_2.19-0ubuntu6.5_amd64.deb ...
Unpacking libc6-dev-i386 (2.19-0ubuntu6.5) ...
dpkg: error processing archive /var/cache/apt/archives/libc6-dev-i386_2.19-0ubuntu6.5_amd64.deb (--unpack):
 trying to overwrite '/usr/include/gnu', which is also in package libc6-dev-amd64 2.19-0ubuntu6.5
Errors were encountered while processing:
 /var/cache/apt/archives/libc6-dev-i386_2.19-0ubuntu6.5_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

この問題を解決する方法がわかりません。このエラーのため、パッケージを削除することもできません。