Red Hat Bugzilla – Bug 1288083
ncl-common creates symlinks in /usr/lib/ncarg
Last modified: 2015-12-07 08:03:27 EST
Description of problem:
ncl-common creates /usr/lib/ncarg and populates it with symlinks which are not required is environment variables are set properly
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. install ncl.x86_64 and ncl-common
2. ls -l /usr/lib/ncarg
/usr/lib/ncarg is populated with symlinks to ../../share/ncarg
These symlinks are not needed because /etc/profile.d/ncarg.sh sets
variables that refer to /usr/lib64/ncarg and /usr/share/ncarg.
Installation should create only directories and symlinks that are
Are they causing any particular problem? My recollection is that some applications/scripts do not pay proper attention to the environment variables so it was necessary to produce the symlinks, so I'm hesitant to remove them unless they are causing problems.
I agree that it would be nice to have ncl installed via RPM work without having to set the NCARG variables, but I fear that requires changes to the build. I've learned to be careful about letting unnecessary files accumulate as they can cause difficulties, e.g., if a new version of ncl is installed from sources
in a non-standard path and picks up some old config files because the default looks in /usr/lib/ncarg.
If the goal is to be able to run ncl scripts without setting NCARG_* environment variables (e.g., bypassing /etc/profile.d/ncl.sh) that doesn't work for my 64-bit system.
With no NCARG_* variables set, ncl gives
NDV_COLORMAP_PATH environment varaible not set:
defaulting to .:$NCARG_ROOT/lib/ncarg/colormaps
warning:["Palette.c"1844]:NhlLoadColormapFiles: Invalid directory encountered in colormap path specification
and segfaults, so NCARG_ROOT must be set.
If I set NCARG_ROOT=/usr, then ncl runs and can be used for simple arithmetic, but gives:
warning:WorkstationClassInitialize:Unable to access rgb color database - named colors unsupported
If I create the symlinks in /usr/lib64/ncarg I still get this message, so it appears that ncl defaults to /usr/lib/ncarg and requires the additional variables from /etc/profile.d/ncarg.sh that point to /usr/lib64/ncarg.