I'm using jBlas and it require libgfortran3 and tell me to install it from:
sudo apt-get install libgfortran3
But I'm using Lubuntu 20.04, which use the same packages as Ubuntu 20.04. I can't find the package here https://packages.ubuntu.com/search?keywords=libgfortran3
So what should I do?
In short, libgfortran3
is no longer supported in Ubuntu 20.04. It depends on an older version of gcc
which is no longer maintained in this version of the distribution.
As an alternative, you might want to try installing its successor package with:
sudo apt-get install libgfortran5
It will provide these files for your Ubuntu installation:
/usr/lib/x86_64-linux-gnu/libgfortran.so.5
/usr/lib/x86_64-linux-gnu/libgfortran.so.5.0.0
/usr/share/doc/libgfortran5
This way, you have an option of dynamically loading/linking against libgfortran
at runtime.
Hope it helps.