gcc7 (libs) package?

dfk · 2018-05-07 19:48:47

Upgrading to gcc8 broke a number of things that look for libgfortran.so.4 (mostly R packages in my case). gcc8 has libgfortran.so.5. I noticed there are packages in community/AUR for version of gcc older than 7, but nothing for 7, and nothing comes up when I "pacman -Fs libgfortran.so.4" (even after "pacman -Fy"). I'm assuming this is because gcc8 was only released recently in core, but I'm not equipped to make my own gcc7 package.

Not sure if this is the right place to post this (maybe the AUR channel is more appropriate?) but I figured others may have run into the same problem as me so I'd appreciate any suggestions.

eschwartz · 2018-05-07 19:56:42

Most of the old gcc versioned packages basically just use the old version of the gcc PKGBUILD, with /usr/bin commands renamed to the right versioned binary name, and the pkgname modified.

The gcc PKGBUILD is pretty easy to respin that way.

...

That answers your question "how to get old gcc version".

But that really isn't your issue. If R packages are looking for old libgfortran.so, that's because you didn't rebuild them when gcc was updated.

If repo packages link to the old soname, they get rebuilt. If AUR packages link to the old soname, we tell users to rebuild themselves.

Is the fact that these are installed to your profile, somehow a reason to not follow the excellent advice from other cases?

mcardillo55 · 2018-05-07 22:01:28

I'm also running into this issue. The gcc8 upgrade caused my extra/python-numpy installation to break, for the same reasons as dfk (missing libgfortran.so.4).

arojas · 2018-05-07 22:06:51

mcardillo55 wrote:

I'm also running into this issue. The gcc8 upgrade caused my extra/python-numpy installation to break, for the same reasons as dfk (missing libgfortran.so.4).

You are responsible for rebuilding your unsupported packages

mcardillo55 · 2018-05-07 22:12:45

arojas wrote:

mcardillo55 wrote:
I'm also running into this issue. The gcc8 upgrade caused my extra/python-numpy installation to break, for the same reasons as dfk (missing libgfortran.so.4).
You are responsible for rebuilding your unsupported packages

Is the extra repository unsupported?

WorMzy · 2018-05-07 22:16:49

No, but everything in extra has been rebuilt against the new libs.

Check your foreign package list (pacman -Qm), I'm guessing you have an unsupported cblas or lapack package kicking about that you neglected to rebuild.

eschwartz · 2018-05-07 22:22:02

mcardillo55 wrote:

I'm also running into this issue. The gcc8 upgrade caused my extra/python-numpy installation to break, for the same reasons as dfk (missing libgfortran.so.4).

$ pkg-list-linked-libraries python-numpy libgfortran.so.4
==> checking linked libraries for python-numpy-1.14.3-1-x86_64.pkg.tar.xz ...
==> ERROR: No file in python-numpy-1.14.3-1-x86_64.pkg.tar.xz is linked to libgfortran.so.4

You're wrong.

You're probably also doing like many users and, as WorMzy suggested, are using an AUR replacement for a package that numpy depends on.

mcardillo55 · 2018-05-07 22:27:54

WorMzy wrote:

I'm guessing you have an unsupported cblas or lapack package kicking about that you neglected to rebuild.

This was it. Thank you!

r00tr4t · 2018-05-08 21:32:46

Thank you, I had the exact same problem my self and wasted 2 hours chasing down this problem.

sudo pacman -S cblas lapack blas

Removed the 'openblas-lapack-0.2.20-1' package.
Why did i install openblas in the first place???

dfk · 2018-05-09 17:20:10

Thanks for all the suggestions. My problem was indeed caused by an unsupported package (anaconda, which was shadowing a system library).

WorMzy · 2018-05-09 17:29:37

Great, please remember to mark your thread as solved by editing the first post and amending the topic title.

Last edited by WorMzy (2018-05-09 17:29:59)

Arch Linux

#1 2018-05-07 19:48:47

gcc7 (libs) package?

#2 2018-05-07 19:56:42

Re: gcc7 (libs) package?

#3 2018-05-07 22:01:28

Re: gcc7 (libs) package?

#4 2018-05-07 22:06:51

Re: gcc7 (libs) package?

#5 2018-05-07 22:12:45

Re: gcc7 (libs) package?

#6 2018-05-07 22:16:49

Re: gcc7 (libs) package?

#7 2018-05-07 22:22:02

Re: gcc7 (libs) package?

#8 2018-05-07 22:27:54

Re: gcc7 (libs) package?

#9 2018-05-08 21:32:46

Re: gcc7 (libs) package?

#10 2018-05-09 17:20:10

Re: gcc7 (libs) package?

#11 2018-05-09 17:29:37

Re: gcc7 (libs) package?

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