Dockerfile for cross-compilation of SFML from Fedora, using mingw32.

Dockerfile

### Usage (this will create an image named "test"):
### docker build -t test
### docker run -it test

FROM fedora:latest

RUN dnf update -y

RUN dnf install -y cmake
RUN dnf install -y mingw32-gcc-c++ mingw32-libstdc++
RUN dnf install -y \
    mingw32-flac \
    mingw32-freetype \
    mingw32-libvorbis \
    mingw32-openal-soft 

### Do everything after this as "user", not as "root".
RUN dnf install -y passwd shadow-utils
RUN adduser -u 1000 user
RUN passwd -d user


USER user
WORKDIR /home/user
RUN mkdir src
WORKDIR src


### Grab SFML sources

RUN dnf install -y wget
RUN wget -q https://github.com/SFML/SFML/archive/refs/tags/2.6.1.tar.gz -O SFML-2.6.1.tar.gz
RUN tar xf SFML-2.6.1.tar.gz
#ADD SFML-2.6.1-sources.zip .
#RUN unzip SFML-2.6.1-sources.zip

### Cross-compile it.
WORKDIR SFML-2.6.1
RUN mkdir build
WORKDIR build
ENV MINGW_ROOT=/usr/i686-w64-mingw32/sys-root/mingw
RUN cmake \
    -DCMAKE_TOOLCHAIN_FILE=/usr/share/mingw/toolchain-mingw32.cmake \
    -DBUILD_SHARED_LIBS=ON \
    -DCMAKE_INSTALL_PREFIX=${MINGW_ROOT} \
    -DCMAKE_VERBOSE_MAKEFILE=ON \
    -DSFML_INSTALL_PKGCONFIG_FILES=TRUE \
    -DCMAKE_INSTALL_LIBDIR=lib \
    ..
RUN make

USER root
RUN make install

USER user

# delete build dir
#WORKDIR ..
#RUN rm -rf build

WORKDIR /home/user

CMD /bin/bash