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FROM alpine
RUN apk update && apk add \
make \
gcc \
musl-dev \
wget
COPY --from=libsdl:1.2.15 /opt/spm/SDL-1.2.15/ /usr/local/
# sdl-config must be edited when moved to another prefix.
RUN sed -ie 's,/opt/spm/SDL-1.2.15,/usr/local,g' $(which sdl-config)
RUN wget https://www.libsdl.org/projects/SDL_mixer/release/SDL_mixer-1.2.12.tar.gz
RUN tar -xf SDL_mixer-1.2.12.tar.gz
WORKDIR /SDL_mixer-1.2.12
ARG PREFIX=/opt/spm/SDL_mixer-1.2.12
RUN ./configure \
--prefix=$PREFIX \
--enable-shared=no \
CFLAGS='-ffunction-sections -fdata-sections -Os'
RUN make -j$(nproc --all)
RUN make install
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