install versão mais antiga do gcc - debian sid

Question

Eu tenho o teste do Debian. Minha versão do gcc é:

gcc (Debian 6.2.1-5) 6.2.1 20161124

Eu gostaria de instalar a versão 4.7 do gcc, mas qualquer tentativa falha. Eu adicionei

deb http //ftp.fr.debian.org/debian/ wheezy main contrib non-free

para ter o pacote disponível via apt-get

ou eu troped para baixar o .deb aqui

link

mas falha com o erro:

dpkg: dependency problems prevent configuration of gcc-4.7-base:amd64: gcc-6-base:i386 (6.2.1-5) breaks gcc-4.7-base (<< 4.7.3) and is installed. Version of gcc-4.7-base:amd64 to be configured is 4.7.2-5. gcc-6-base:amd64 (6.2.1-5) breaks gcc-4.7-base (<< 4.7.3) and is installed. Version of gcc-4.7-base:amd64 to be configured is 4.7.2-5.

dpkg: error processing package gcc-4.7-base:amd64 (--install): dependency problems - leaving unconfigured Errors were encountered while processing: gcc-4.7-base:amd64

O ponto, eu não posso remover o gcc-6