How to compile Seamly2D on Fedora 31

Seamly2D Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure("2") do |config|
  config.vm.box = "jackrayner/fedora-31-workstation"
  config.vm.provision "shell", inline: <<-EOF
    #!/usr/bin/env bash
    dnf --assumeyes --errorlevel=0 --nogpgcheck upgrade
    dnf --assumeyes --errorlevel=0 --nogpgcheck groupinstall "C Development Tools and Libraries"
    dnf --assumeyes --errorlevel=0 --nogpgcheck install git qt5-qtbase-devel qt5-qtxmlpatterns-devel qt5-linguist qt5-qtsvg-devel
    git clone https://github.com/FashionFreedom/Seamly2D.git
    sed -i -e 's/6/9/g' Seamly2D/Seamly2D.pro
    cd Seamly2D
    qmake-qt5 PREFIX=/usr/local PREFIX_LIB=/usr/lib/i386-linux-gnu Seamly2D.pro -r CONFIG+=noDebugSymbols CONFIG+=no_ccache
    make
    make install
  EOF
  config.vm.synced_folder ".", "/vagrant", disabled: true
  config.vm.provider "virtualbox" do |vb|
    vb.gui = true
    vb.cpus = "2"
    vb.memory = "4096"
  end
end