Installation problem on recent mac

[keflavich]

This is almost certainly not a reproject issue exclusively, but I'm encountering it only for reproject and I don't know where else to ask - but maybe you've seen it?

I try to install the latest reproject and get:

  ERROR: Failed building wheel for numcodecs
Successfully built reproject
Failed to build numcodecs
ERROR: Could not build wheels for numcodecs, which is required to install pyproject.toml-based projects

which follows a long traceback:

      clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -fwrapv -O2 -Wall -fPIC -O2 -isystem /Users/adam/mambaforge/include -arch arm64 -fPIC -O2 -isystem /Users/adam/mambaforge/include -arch arm64 -DHAVE_LZ4=1 -DHAVE_ZLIB=1 -DHAVE_ZSTD=1 -Ic-blosc/blosc -Ic-blosc/internal-complibs/lz4-1.9.3 -Ic-blosc/internal-complibs/zstd-1.4.8 -Ic-blosc/internal-complibs/zlib-1.2.8 -Ic-blosc/internal-complibs/zstd-1.4.8/compress -Ic-blosc/internal-complibs/zstd-1.4.8/dictBuilder -Ic-blosc/internal-complibs/zstd-1.4.8/decompress -Ic-blosc/internal-complibs/zstd-1.4.8/legacy -Ic-blosc/internal-complibs/zstd-1.4.8/common -Ic-blosc/internal-complibs/zstd-1.4.8/dll -Ic-blosc/internal-complibs/zstd-1.4.8/deprecated -Ic-blosc/internal-complibs/zstd-1.4.8/dll/example -I/Users/adam/mambaforge/include/python3.10 -c c-blosc/blosc/bitshuffle-sse2.c -o build/temp.macosx-11.0-arm64-cpython-310/c-blosc/blosc/bitshuffle-sse2.o -stdlib=libc++ -DSHUFFLE_SSE2_ENABLED
      c-blosc/blosc/bitshuffle-sse2.c:20:4: error: SSE2 is not supported by the target architecture/platform and/or this compiler.
        #error SSE2 is not supported by the target architecture/platform and/or this compiler.
         ^
      In file included from c-blosc/blosc/bitshuffle-sse2.c:23:
      In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/13.1.6/include/emmintrin.h:13:
      In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/13.1.6/include/xmmintrin.h:13:
      /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/13.1.6/include/mmintrin.h:50:12: error: invalid conversion between vector type '__m64' (vector of 1 'long long' value) and integer type 'int' of different size
          return (__m64)__builtin_ia32_vec_init_v2si(__i, 0);
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I can't make sense of any of this. My best guess is there's a disagreement between the libraries and the compiler.

[keflavich]

OK this is probably zarr-developers/numcodecs#315. Closing as noise.