does not build on armhf: unrecognized command line option ‘-msse2’

[streaps]

I tried to build on a Raspberry Pi 2, 32 bit Debian Buster (Raspbian 10). I followed the instructions from README.md:

[ 0%] Building C object libs/iovm/tools/CMakeFiles/io2c.dir/io2c.c.o
cc: error: unrecognized command line option ‘-msse2’
make[2]: *** [libs/iovm/tools/CMakeFiles/io2c.dir/build.make:63: libs/iovm/tools/CMakeFiles/io2c.dir/io2c.c.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:478: libs/iovm/tools/CMakeFiles/io2c.dir/all] Error 2
make: *** [Makefile:152: all] Error 2

[yegor256]

@streaps @stevedekorte the same problem for me, here is the Dockerfile that reproduces it:

FROM ubuntu:22.04

ENV DEBIAN_FRONTEND=noninteractive

SHELL ["/bin/bash", "-eo", "pipefail", "-c"]

ENV GIT_SSL_NO_VERIFY=1

# Build essentials that are required later
RUN apt-get update -y --fix-missing \
  && apt-get -y install --no-install-recommends \
    cmake=3.22.1-1ubuntu1.22.04.2 \
    git=1:2.34.1-1ubuntu1.10 \
    build-essential=12.9ubuntu3 \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/*

RUN git clone --recursive https://github.com/IoLanguage/io.git \
  && cd io \
  && git checkout 7113659c4342e98e9a86482b25441775fa066a96 \
  && mkdir build \
  && cd build \
  && cmake .. \
  && make \
  && make install \
  && io --version

The output:

...
 > [3/5] RUN git clone --recursive https://github.com/IoLanguage/io.git   && cd io   && git checkout 7113659c4342e98e9a86482b25441775fa066a96   && mkdir build   && cd build   && cmake ..   && xCPUARCH=armv7l make   && make install   && io --version:
8.101 -- Build files have been written to: /io/build
8.134 [  0%] Built target copy_coroutine_headers
8.274 [  0%] Built target copy_basekit_headers
8.294 [  0%] Built target copy_garbagecollector_headers
8.475 [  0%] Built target copy_iovm_headers
8.483 [  0%] Building C object libs/iovm/tools/CMakeFiles/io2c.dir/io2c.c.o
8.484 cc: error: unrecognized command-line option '-msse2'
8.485 make[2]: *** [libs/iovm/tools/CMakeFiles/io2c.dir/build.make:76: libs/iovm/tools/CMakeFiles/io2c.dir/io2c.c.o] Error 1
8.485 make[1]: *** [CMakeFiles/Makefile2:455: libs/iovm/tools/CMakeFiles/io2c.dir/all] Error 2
8.485 make: *** [Makefile:156: all] Error 2

[yegor256]

@stevedekorte however, this Dockerfile compiles just fine in CentOS 7. It fails only on macOS M2.

[stevedekorte]

Was just looking into Libco: https://github.com/Tencent/libco

[rickard-von-essen]

Related to #474

[pedro-w]

I believe just this line needs removing

io/CMakeLists.txt

Line 42 in 7113659

SET(CMAKE_C_FLAGS "-msse2")

BUT: there is some assembly in the coroutine library and I don't think there is an ARM implementation (same applies to Tencent's libco AFAICS). I don't know if the assembly is needed if the platform has ucontext (Mac / BSD) - hopefully someone else can answer