dokervirus/archlinux_dev repository overview

For Dockerfile:

FROM archlinux

RUN pacman -Syu --noconfirm

RUN pacman -S --noconfirm base-devel git vi emacs

VOLUME /build

RUN useradd -ms /bin/bash builder

RUN echo 'builder:builder' | chpasswd

RUN echo 'builder ALL=(ALL) ALL' >> /etc/sudoers

USER builder

WORKDIR /home/builder

For how to build mingw-w64-gcc:

$ git clone https://github.com/archlinux/svntogit-community.git⁠

$ cd svntogit-community/mingw-w64-gcc/trunk

$ makepkg -s --skippgpcheck