XFCE 4.16+ open save dialog revert buttons to bottom

Problem:
XFCE 4.16 and above moved the save/cancel and open/cancel buttons on the dialogs.

yuck:

Solution:
CLI to revert to original position:
xfconf-query -c xsettings -p /Gtk/DialogsUseHeader -s false

yay:

good luck!

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xfce 4 xfrce4 4.16 save open close dialog buttons top bottom revert

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set default gcc, cpp, clang versions in Debian 11, Debian 12 Linux

edit: updated this for Debian 12 / gcc 12, but essentially same solution(s).
see also: https://apt.llvm.org/

Problem: cpp-10 is default in Debian 11

Need: cpp-9 or gcc-9 as default

Solution:

sudo apt install build-essential cpp-12 cpp-11 cpp-10 cpp-9 gcc-12 gcc-11 gcc-10 gcc-9 

sudo update-alternatives --install /usr/bin/cpp cpp /usr/bin/cpp-9 10
sudo update-alternatives --install /usr/bin/cpp cpp /usr/bin/cpp-10 20
sudo update-alternatives --install /usr/bin/cpp cpp /usr/bin/cpp-11 30
sudo update-alternatives --install /usr/bin/cpp cpp /usr/bin/cpp-12 40

update-alternatives --query cpp
sudo update-alternatives --config cpp

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 10
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 20
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 30
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-12 40

update-alternatives --query gcc
sudo update-alternatives --config gcc

Resource: https://stackoverflow.com/questions/7832892/how-to-change-the-default-gcc-compiler-in-ubuntu

Potential problems:
If you get something like update-alternatives: error: cannot stat file '/usr/bin/cpp': Too many levels of symbolic links, then sudo rm /etc/alternatives/cpp. BUT be sure to reinstall cpp-* to get the /user/bin links recreated.

And you may do similarly with Clang/Clang++

sudo apt install clang-14 clang-13 clang-12 clang-11

sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-11 10
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-12 20
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-13 30
sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-14 40

sudo update-alternatives --config clang

sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-11 10
sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-12 20
sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-13 30
sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-14 40

sudo update-alternatives --config clang++

If you prefer non-interactive config, then you may

sudo update-alternatives --set clang /usr/bin/clang-12
sudo update-alternatives --set clang++ /usr/bin/clang++-12

and do so silimarly for any other alternatives







~~
good luck!

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