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Tag: multilib (Page 4 of 10)

Rebuilt multilib gcc compiler suite for slackware-current

August 8, 2015 / / 4 Comments

There were many updates for Slackware-current last night. One of them was a rebuilt gcc compiler suite, and therefore an updated multilib compiler set was due as well.

The new multilib gcc packages are now online, The set of 32-bit “compat32” packages for slackware64-current has also been refreshed. The gcc packages had to be rebuilt because of other package updates causing library version bumps, but Pat took the opportunity to add two shell scripts “c89” and “c99” that are part of POSIX standard – they call the compiler with additional compatibility parameters. This was necessitated by the fact that recent git checkouts of the VLC mediaplayer would not compile on Slackware because the VLC developers started enforcing a check on the availability of the “c99” command.

You can obtain the updated multilib packages from the URLs below or from any other mirror near you that carries copies of my repositories:

A refresher on “multilib” for new users of Slackware: if you want to use (binary-only) 32-bit software on a 64-bit Slackware installation then that is not possible out of the box, because Slackware64 is a pure 64-bit OS. You need to expand the OS with “multilib capability” so that the OS can run (and compile) 32-bit programs as well. Examples of 32-bit (closed-source) programs are Skype, Valve’s Steam Client, the WINE emulator, the Pipelight browser plugin, Citrix client etc.

Instructions on how to add or update multilib on your 64-bit Slackware can be found on the Slackware Documentation Project. Also, the slackpkg+ extension to Slackware’s own slackpkg contains the script “setupmultilib.sh” which can help you in setting up multilib properly. With slackpkg+ it is then trivial to keep your multilib installation up to date when updates occur.

Security tip:

One note on the side about last night’s Slackware -current update. The work on this update was supposed to take a while longer because Pat wants to update additional packages and a proper integration is important so that things don’t break due to library incompatibilities. But the update to the mozilla-firefox package addresses a serious and critical security issue. This security fix needed to get out to you people as fast as possible. The exploit (which was found in the wild by an attentive Firefox user and then reported to Mozilla) uses Firefox’s internal PDF viewer implementation to gain access to your local files, and uploads e.g. your ssh configuration and keys, the password file, pidgin and psi configuration files to a Russian server – pretty sensitive things.

If you have been using Firefox 38 or 39 (normal or ESR versions) on your Linux computer and visited dodgy sites recently, and you have ssh keys for accessing remote servers without a password, you may want to consider replacing these ssh keys with fresh ones.

Enjoy! Eric

Multilib gcc updated to address changes in slackware-current

April 25, 2015 / / 11 Comments

slackware_multilib

In slackware-current two inter-related packages were updated yesterday: libmpc and gcc. It turns out that the update of libmpc caused a library version change. Since the gcc compiler is dynamically linked to libmpc, the gcc packages had to be recompiled in order to make it link against the new libmpc.so.3 library. Another reason for recompiling the gcc package was the missing libiberty.a file. The gcc.SlackBuild needed an additional configuration parameter to make it install into the package again.

Unfortunately that slackware-current update broke the multilib gcc packages which I have in my own repository, as several people noticed … the quick’n’dirty fix was (cd /usr/lib64 ; ln -s libmpc.so.3 libmpc.so.2).

I have recompiled the multilib gcc twice (after applying Slackware’s updates to the gcc-multilib.SlackBuild): first compilation was done with that symlink created like I just described. That resulted in the desired linkage to the new libmpc.so.3 library. Then I removed the symlink which I had created earlier and compiled the gcc packages again, just to be sure (for Slackware, this double compilation was performed as well).

The new gcc packages are now online, along with an update to the massconvert32.sh script which is part of the compat32-tools package. Also I refreshed the set of 32-bit “compat32” packages which I create from the official 32-bit Slackware package tree, because there were several updated packages in Slackware (again), and I added the libva-intel-driver-compat32 package on request.

Here is where you can find the updated packages:

If you wonder what this multilib is all about: it is needed if you want to use (binary-only) 32-bit software on 64-bit Slackware. Examples of that are Skype, Valve’s Steam Client, the WINE emulator, the Pipelight browser plugin, Citrix client etc.

Instructions on how to add or update multilib on your 64-bit Slackware can be found on the Slackware Documentation Project. Also, the slackpkg+ extension to Slackware’s own slackpkg contains the script “setupmultilib.sh” which can help you in setting up multilib properly.

 

Enjoy! Eric

PS: The nice graphic at the top was taken from the page http://gnu-linux-slackware.blogspot.nl/2013/01/switch-to-multilib-with-32-bit.html which is a Slackware related blog by Ismail.

Multilib glibc patched for GHOST vulnerability (CVE-2015-0235)

January 30, 2015 / / 13 Comments

There was some unrest about the most recent glibc update in the stable releases of Slackware (slackware-current excluded). Glibc was patched against a new vulnerability, CVE-2015-0235, for which the only known exploit currently is in the MTA Exim (software which is not part of Slackware) and an exploit for this vulnerability is difficult to write apparently. I usually am quite fast in following up on Slackware updates for gcc and especially glibc. This time, I was busy with answering questions about the new KDE 5 at night, and buried in shit at work during the day.

Nevertheless, when there were no updated multilib versions of glibc the next day, some people asked when they could expect a patched package. Others were less polite and demanded updated packages. That sucked.

Here is where you can find the updated packages:

For the un-initiated: multilib is needed if you want to use binary-only 32-bit software on 64-bit Slackware. Examples of that are Skype, Valve’s Steam Client, the WINE emulator, the Pipelight browser plugin, Citrix client etc.

Instructions on how to add or update multilib on your 64-bit Slackware can be found on the Slackware Documentation Project.

Cheers, Eric

 

Slackware-current – new multilib gcc compiler suite

June 3, 2014 / / 5 Comments

The latest update to Slackware-current brought us a new kernel (3.14.5) and a new gcc compiler (4.8.3).

This warranted a build of new multilib gcc packages. Get them from your nearest mirror. I also refreshed the “compat32” layer of packages – this is the set of converted 32-bit Slackware packages which you’ll need at a minimum, so that you will be able to run most of the 32-bit software that is out there.

Remember, a multilib configuration is needed if you want to use binary-only 32-bit software on 64-bit Slackware – think of Valve’s Steam Client, the WINE emulator, the Pipelight browser plugin, Citrix client etc.

If you are looking for instructions on how to add or update multilib on your 64-bit Slackware, check out our Slackware Documentation Project which has this information and much more.

Cheers, Eric

 

New multilib versions of glibc and gcc for slackware-current

May 9, 2014 / / 26 Comments

There were a couple of nice updates in the Slackware-current ChangeLog today – new kernel (3.14.3), new binutils (2.24.51.0.3), new glibc (2.19) and a rebuilt gcc. Not to speak of two new packages: libnftnl and nftables, which bring a new packet filtering framework on Linux.

It’s my birthday today and I took a day off to be with my family, so there was time enough to build new versions of multilib glibc and gcc :-). They are at their usual download locations:

Remember, a multilib configuration is needed if you want to use binary-only 32-bit software on 64-bit Slackware – think of Valve’s Steam Client, the WINE emulator, the Pipelight browser plugin, Citrix client etc.

If you are looking for instructions on how to add or update multilib on your 64-bit Slackware, check out our Slackware Documentation Project which has this information and much more.

Cheers, Eric

 

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