title: dyld: Symbol not found: _objc_alloc_init
body: <p>I built static ffmpeg binaries under one mac and when I trying to run the binary under another one I have the following error:</p>
  
  <pre><code>./ffmpeg -f avfoundation -list_devices true -i ''
  ffmpeg version N-95218-g7da57875b5 Copyright (c) 2000-2019 the FFmpeg developers
    built with Apple clang version 11.0.0 (clang-1100.0.33.8)
    configuration: --pkg-config-flags=--static --disable-ffplay --disable-debug --disable-doc --enable-filter=format --disable-d3d11va --disable-dxva2 --disable-network --disable-iconv --disable-protocol=crypto --enable-libopus --enable-libvorbis --enable-libmp3lame --enable-libopenh264 --enable-libtheora --enable-libvpx --enable-libwebp --disable-protocol=hls --disable-protocol=cache --extra-ldexeflags='-Bstatic -L/usr/local/lib -L/usr/local/opt/llvm/lib' --extra-cflags='-I/usr/local/include -static -I/usr/local/opt/llvm/include -I/usr/local/opt/llvm/include/c++/v1/ -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AVFoundation.framework/Versions/A/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreVideo.framework/Versions/A/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreMedia.framework/Versions/A/Headers' --disable-bzlib --disable-appkit --disable-coreimage --disable-indevs --enable-indev=lavfi --disable-asm --enable-indev=avfoundation --cc=/usr/bin/clang
    libavutil      56. 35.100 / 56. 35.100
    libavcodec     58. 59.101 / 58. 59.101
    libavformat    58. 33.100 / 58. 33.100
    libavdevice    58.  9.100 / 58.  9.100
    libavfilter     7. 61.100 /  7. 61.100
    libswscale      5.  6.100 /  5.  6.100
    libswresample   3.  6.100 /  3.  6.100
  dyld: lazy symbol binding failed: Symbol not found: _objc_alloc_init
    Referenced from: ffmpeg (which was built for Mac OS X 10.15)
    Expected in: /usr/lib/libobjc.A.dylib
  
  dyld: Symbol not found: _objc_alloc_init
    Referenced from: ffmpeg (which was built for Mac OS X 10.15)
    Expected in: /usr/lib/libobjc.A.dylib
  </code></pre>
  
  <p>Abort trap: 6</p>
  
  <p>Please advise.</p>