Pandoc dependency issue on openSUSE Leap 15

[gkamendje]

I am trying to add openSUSE Leap 15 support to ORFS. While doing this, I am getting the following dependency conflict with Pandoc while running sudo ./setup.sh in the ORFS main directory.

Problem: 1: the installed pandoc-cli-3.1.11.1-150500.11.3.1.x86_64 obsoletes 'pandoc < 3' provided by the to be installed pandoc-2.18-150500.1.2.x86_64
 Solution 1: deinstallation of pandoc-cli-3.1.11.1-150500.11.3.1.x86_64
 Solution 2: do not install pandoc-2.18-150500.1.2.x86_64

Removing the pandoc entry from the _installOpenSusePackages() function in ./tools/OpenROAD/etc/DependencyInstaller.sh fixes the problem but I am not sure this is the correct solution to this issue.
I have replicated the problem with openSUSE Leap 15.5 and openSUSE Leap 15.6.

On a very similar note, despite launching the ORFS setup script with sudo access sudo ./setup.sh, I am getting the following error message

./tools/OpenROAD/etc/DependencyInstaller.sh: line 980: /home/gkamendje/tmp_compile/OpenROAD-flow-scripts/tools/OpenROAD/etc/openroad_deps_prefixes.txt: Permission denied

As if the root user ID is not passed down to the process that executes the following piece of code in OpenROAD/etc/DependencyInstaller.sh

if [[ ! -z ${saveDepsPrefixes} ]]; then
    mkdir -p "$(dirname $saveDepsPrefixes)"
    echo "$CMAKE_PACKAGE_ROOT_ARGS" > $saveDepsPrefixes
fi

On openSUSE Leap 15.6 the calls to zypper in function _installOpenSusePackages() and _installOpenSuseCleanUp
in ./tools/OpenROAD/etc/DependencyInstaller.sh need to be preceded by sudo otherwise the system complains that root privileges are required to execute those calls despite the script ORFS setup script is started with sudo.