ARG GH_REPO=btbn/ffmpeg-builds FROM docker.pkg.github.com/$GH_REPO/base:latest ENV DEBIAN_FRONTEND noninteractive RUN \ apt-get -y install mingw-w64 && \ apt-get -y clean && \ rm /usr/lib/gcc/*-w64-mingw32/*/libstdc++*.dll* && \ rm /usr/lib/gcc/*-w64-mingw32/*/libgcc_s* && \ rm /usr/lib/gcc/*-w64-mingw32/*/*.dll.a && \ rm /usr/*-w64-mingw32/lib/*.dll.a && \ mkdir /opt/ffbuild ADD toolchain.cmake /toolchain.cmake ADD cross.meson /cross.meson ENV FFBUILD_TARGET_FLAGS="--pkg-config=pkg-config --cross-prefix=i686-w64-mingw32- --arch=i686 --target-os=mingw32" \ FFBUILD_TOOLCHAIN=i686-w64-mingw32 \ FFBUILD_CROSS_PREFIX=i686-w64-mingw32- \ FFBUILD_PREFIX=/opt/ffbuild \ FFBUILD_CMAKE_TOOLCHAIN=/toolchain.cmake \ PKG_CONFIG_LIBDIR=/opt/ffbuild/lib/pkgconfig \ CFLAGS="-static-libgcc -static-libstdc++ -I/opt/ffbuild/include -O2 -pipe -D_FORTIFY_SOURCE=2 -fstack-protector-strong" \ CXXFLAGS="-static-libgcc -static-libstdc++ -I/opt/ffbuild/include -O2 -pipe -D_FORTIFY_SOURCE=2 -fstack-protector-strong" \ LDFLAGS="-static-libgcc -static-libstdc++ -L/opt/ffbuild/lib -O2 -pipe -fstack-protector-strong"