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squoosh/codecs/cpp.Dockerfile
Ingvar Stepanyan d1cff7d84e Consolidate C++ builds
Use a shared base image with fixed Emscripten version, autotools and optimisation flags for all C++ codecs.

Additionally, move build commands for codecs themselves to Makefile - they're already platform-specific, and Make allows for better caching and parallelisation that custom ad-hoc scripts.

This is essentially same as #777 but for C++.
2020-07-28 18:05:09 +01:00

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FROM emscripten/emsdk:1.39.19
RUN apt-get update && apt-get install -qqy autoconf libtool pkg-config
ENV CFLAGS "-Os -flto"
ENV CXXFLAGS "${CFLAGS} -std=c++17"
ENV LDFLAGS "${CFLAGS}"
# Build and cache standard libraries with these flags
RUN emcc ${CXXFLAGS} --bind -xc++ /dev/null -o /dev/null
WORKDIR /src
CMD ["sh", "-c", "emmake make -j`nproc`"]