tce-load -i compiletc meson gtk4-dev gtk4-gir gtk3 gtk3-gir gobject-introspection-dev vala-dev

wget https://github.com/flatpak/libportal/releases/download/0.9.1/libportal-0.9.1.tar.xz
wget https://www.linuxfromscratch.org/patches/blfs/svn/libportal-0.9.1-qt6.9_fixes-1.patch

cd libportal-0.9.1

patch -Np1 -i ../libportal-0.9.1-qt6.9_fixes-1.patch

mkdir build
cd build

CC="gcc -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" CXX="g++ -flto -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fno-exceptions -fno-rtti" meson setup --prefix=/usr/local --buildtype=plain -Ddocs=false ../

ninja [0m 15.72s]
sudo ninja install

libportal 0.9.1

  Backends
    enabled backends: gtk3,gtk4

  User defined options
    buildtype       : plain
    docs            : false
    prefix          : /usr/local