Public bug reported:
Hello.
If you look at the instruction of installation of binary or source code
compilation from the original source, ncl will traditionally install in
/usr/local/ncl
Then environment NCARG_ROOT is set to /usr/local/ncl. The ncl folder contains
bin, lib and include folders.
Various ncl scripts will call upon this environment NCARG_ROOT to load
the various libraries and supporting scripts from the ncl package
installation. There are also programs like RIP that depends on the
classic installation path of ncl.
Installing ncl will install the ncl components in various places, that is:
/usr/bin
/usr/lib/ncarg
/usr/include/ncarg
/usr/share/ncarg
Even more messy is that there is a there is a folder inside
/usr/share/ncarg/ and /usr/lib/ncarg that will just point at each other
and creating endless loop.
The fix to this messy problem and making sure that the ncl installation
will work
For the traditional lib directory and sub directories.
sudo mkdir /usr/local/ncl
sudo mkdir /usr/local/ncl/lib
sudo ln -sf /lib/x86_64-linux-gnu/ncarg/* /usr/local/ncl/lib/.
sudo mkdir /usr/local/ncl/lib/ncarg
sudo ln -sf /usr/share/ncarg/* /usr/local/ncl/lib/ncarg/.
sudo mkdir /usr/local/ncl/include
sudo mkdir /usr/local/ncl/include/ncarg
sudo ln -sf /usr/include/ncarg* /usr/local/ncl/include/ncarg/.
For the traditional include directory and sub directories.
Optional, remove the link loop
sudo rm /usr/share/ncarg/ncarg
I think there's no need to link the bin directory
Then add in ~./bashrc
export NCARG_ROOT=/usr/local/ncl
Now all typical ncl scripts, whether written by ncl developers
themselves (as example) or by ncl users will work. Programs that utilise
ncl such as RIP would also work now.
This is important, as ncl development has been discontinued. The binary
installation provided by ncl websites still depends on libgfortran3
which has long been discontinued.
** Affects: ncl (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1889040
Title:
Messy ncl installation in 20.04 and fix
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