Unpacking perl (5.20.2-6) over (5.20.2-3+deb8u1) ...
dpkg: error processing archive /var/cache/apt/archives/perl_5.20.2-6_amd64.deb (--unpack):
 trying to overwrite '/usr/bin/config_data', which is also in package libmodule-build-perl 0.421400-3
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/perl_5.20.2-6_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)