Arch Linux

iokiae

Member

Registered: 2018-03-11

Posts: 6

glibfortran.so.4 missing error after update to gcc 8

I get a message about libgfortran.so.4 missing when I try to compile OpenMP program. I have repaired it by linking /usr/lib/libgfortran.so.5 to /usr/lib/libgfortran.so.4
Does any one of you more experienced people know why this happens and if my fix is alright?

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,729

Re: glibfortran.so.4 missing error after update to gcc 8

Making that symlink was a horrible mistake. The solution is to rebuild whatever it is you have that's linked against the old version.

WorMzy

Administrator

From: Scotland

Registered: 2010-06-16

Posts: 13,718

Website

Re: glibfortran.so.4 missing error after update to gcc 8

Please remove that symlink and post the commands you are using that are reporting the error, and the actual output.

https://bbs.archlinux.org/viewtopic.php?id=57855

Mod note: not a programming issue, moving to NC.

Last edited by WorMzy (2018-05-25 21:29:09)

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iokiae

Member

Registered: 2018-03-11

Posts: 6

Re: glibfortran.so.4 missing error after update to gcc 8

Sorry for not answering for a long time.
Error Message that I recieve from g++ -fopenmp main.cpp is:

 /home/.../nBodyProblem: error while loading shared libraries: libgfortran.so.4: cannot open shared object file: No such file or directory 

Also the same problem happens to be present on my friends machine. Both of us use OpenMP and Armadillo library.

iokiae

Member

Registered: 2018-03-11

Posts: 6

Re: glibfortran.so.4 missing error after update to gcc 8

I have found a solution. I just had to update the Armadillo library after gcc update. How can I mark the problem as solved?

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,435

Re: glibfortran.so.4 missing error after update to gcc 8

Edit the title in your first post and prepend [SOLVED] also this should be a good lesson: If you see an error like this in the future, make sure you rebuild your external dependencies. AUR packages are your responsibility.

Last edited by V1del (2018-06-06 09:27:01)