Install GDB libcxx printers.

install_gdb_libcxx_printers.sh

# determines what version you want
version=heads/main
# path=tags/llvmorg-21-init

mkdir -p ~/.config/gdb/libcxx

wget https://github.com/llvm/llvm-project/raw/refs/$version/libcxx/utils/gdb/libcxx/printers.py -O ~/.config/gdb/libcxx/printers.py
touch ~/.config/gdb/libcxx/__init__.py

if [ ! -f ~/.gdbinit ]; then
    echo "
set print pretty on
set print object on
" | tee ~/.gdbinit
fi

echo "
# libc++ pretty printers
# See: https://github.com/koutheir/libcxx-pretty-printers
python
import sys
sys.path.insert(0, '$(eval echo ~)/.config/gdb')
from libcxx.printers import register_libcxx_printer_loader
register_libcxx_printer_loader()
end
" | tee -a ~/.gdbinit