Jessie arm cross-development environment broken.

[chricky]

Hi.
I recently broke my code development environment by upgrading a Jessy distribution.
The short question:
Is there somewhere I can find old *.deb package versions. Particularly I'm looking for development tools *-4.9_4.9.2-10_amd64.deb not *-4.9_4.9.2-10+deb8u1_amd64.deb

The Longer story:
I've recently broken my development environment were I'm compiling code for an ARM based Linux system on a AMD64 based Linux system.
The setup that was working was based on Jessie, with a combination of mainline and the embedian repository.
On a recent apt-get upgrade I allowed the gcc-4.9 to upgrade to version 4.9.2-10+deb8u1 for the amd64 target tools, this conflicts with the embedian arm-linux-gnueabihf_4.9.2-10 arm target tools.
The easiest way forward for me is to downgrade the _amd64 based tools, but I cannot find old versions of them.
I can't upgrade to stretch as this breaks other things in the development environment.
Any help or suggestions will be welcomed.
Best regards,
Chris

[debiman]

https://www.startpage.com/do/dsearch?qu ... +downgrade
seems there's various ways; i won't comment further, you need to read & decide what you want to try.
esp. with your non-standard repos this can become pretty tricky.

[4D696B65]

https://snapshot.debian.org/

[chricky]

Thank you, both to debiman, and particularly 4D698B65
The pointer to https://snapshot.debian.org/ was what I needed.
I had found some of the packages in ISO snap shots, but on a multi-arch system, that would have meant downloading a lot of Gigs.
I may add another post for those curious on if I manage to roll back and freeze development environment, but for the moment I have what I need to attempt the down grade.
Best regards,
Chris

[chricky]

Hi All.

Just a follow up:

Phew. I can build my project again. Thanks for the assistance.

Here is the FWI follow up:

Commented out normal sources from /etc/apt/sources.list and added the following line:
deb http://snapshot.debian.org/archive/debi ... 1T111800Z/ jessie main

Used aptitude to set the installation versions on a whole bunch of packages, and added the -f flag to assist with conflict resolution:
sudo aptitude install gcc-4.9-base=4.9.2-10 gcc-4.9-base:armhf=4.9.2-10 gcc-4.9-base:i386=4.9.2-10 libasan1=4.9.2-10 libasan1:armhf=4.9.2-10 libatomic1=4.9.2-10 libatomic1:armhf=4.9.2-10 libasan1:armhf=4.9.2-10 libgcc-4.9-dev=4.9.2-10 libgcc-4.9-dev:armhf=4.9.2-10 gcc-4.9-base:armhf=4.9.2-10 gcc-4.9-base:i386=4.9.2-10 libgomp1:armhf=4.9.2-10 gcc-4.9-base:armhf=4.9.2-10 libgomp1=4.9.2-10 libstdc++6:armhf=4.9.2-10 libstdc++6:i386=4.9.2-10 gcc-4.9-base:armhf=4.9.2-10 libstdc++6=4.9.2-10 gcc-4.9-base:i386=4.9.2-10 libstdc++6=4.9.2-10 libubsan0:armhf=4.9.2-10 gcc-4.9-base:armhf=4.9.2-10 libubsan0=4.9.2-10 gcc-4.9=4.9.2-10 libgcc1=1:4.9.2-10 libgcc1:armhf=1:4.9.2-10 libgcc1:i386=1:4.9.2-10 libc6-i386 libgcj-common -f

This allowed the installation of the compiler I needed:
sudo apt-get install gcc-arm-linux-gnueabihf

And the build environment for my project is functional again

Best regards,
Chris