What is the “Illegal Instruction: 4” error and why does “-mmacosx-version-min=10.x” fix it?

From the Apple Developer Forum (account required):

“The compiler and linker are capable of using features and performing optimizations that do not work on older OS versions. -mmacosx-version-min tells the tools what OS versions you need to work with, so the tools can disable optimizations that won’t run on those OS versions. If you need to run on older OS versions then you must use this flag.

“The downside to -mmacosx-version-min is that the app’s performance may be worse on newer OS versions then it could have been if it did not need to be backwards-compatible. In most cases the differences are small.”

Related Posts:

  1. Installing GCC on macOS Catalina
  2. OS X 10.9.2: checking whether the C compiler works… no
  3. Why does cURL return error “(23) Failed writing body”?
  4. Enable OpenMP support in clang in Mac OS X (sierra & Mojave)
  5. How can I run python in terminal on a mac?
  6. Where to place $PATH variable assertions in zsh?
  7. Enable OpenMP support in clang in Mac OS X (sierra & Mojave)
  8. ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’
  9. No “Proceed Anyway” option on NET::ERR_CERT_INVALID in Chrome on MacOS
  10. Xcode is not currently available from the Software Update server
  11. Xcode is not currently available from the Software Update server
  12. How to uninstall Python 2.7 on a Mac OS X 10.6.4?
  13. Please enter a commit message to explain why this merge is necessary, especially if it merges an updated upstream into a topic branch
  14. VirtualBox NS_ERROR_FAILURE (0x80004005) macOS
  15. Installing Homebrew on OS X
  16. Updating Python on Mac
  17. How do I upgrade to Python 3.6 with conda?
  18. You don’t have write permissions for the /Library/Ruby/Gems/2.3.0 directory
  19. You don’t have write permissions for the /Library/Ruby/Gems/2.3.0 directory. (mac user)
  20. How to change default Python version?
  21. SocketException: Address already in use MONGODB
  22. OS X: equivalent of Linux’s wget
  23. Terminal error: zsh: permission denied: ./startup.sh
  24. Failed to attach the USB device SEGGER J-Link [0100] to the virtual machine WINDOWS 7
  25. You don’t have write permissions for the /Library/Ruby/Gems/2.3.0 directory. (mac user)
  26. ImportError: No module named sklearn (Python)
  27. What’s a good hex editor/viewer for the Mac?
  28. Where to find Application Loader app in Mac?
  29. OS X: equivalent of Linux’s wget
  30. Brew install docker does not include docker engine?
  31. How do you update Xcode on OSX to the latest version?
  32. Mongod complains that there is no /data/db folder
  33. How can I open the Atom editor from the command line in OS X?
  34. How to uninstall Docker completely from a Mac?
  35. mvn command not found in OSX Mavrerick
  36. How to easily install and uninstall docker on MacOs
  37. How to install wget in macOS?
  38. Maven Install on Mac OS X
  39. dyld: Library not loaded … Reason: Image not found
  40. How to install Java 8 on Mac
  41. editing PATH variable on mac
  42. Find (and kill) process locking port 3000 on Mac
  43. OS X Framework Library not loaded: ‘Image not found’
  44. How to update Ruby with Homebrew?
  45. Install Visual Studio 2015 on mac
  46. Vim Can’t Save File (E212)
  47. Recursively find all files that match a certain pattern
  48. Installing cgdb on a mac os x
  49. How do I update the password for Git?
  50. How can I install a previous version of Python 3 in macOS using homebrew?
  51. “code .” Not working in Command Line for Visual Studio Code on OSX/Mac
  52. mvn command not found in OSX Mavrerick
  53. How can I Remove .DS_Store files from a Git repository?
  54. Shared folder between MacOSX and Windows on Virtual Box
  55. VirtualBox: mount.vboxsf: mounting failed with the error: No such device
  56. Open an .html file with default browser using Bash on Mac
  57. How to use vim in the terminal?
  58. -bash: export: `=’: not a valid identifier
  59. How to use vim in the terminal?
  60. OS X cp command in Terminal – No such file or directory
  61. matplotlib: RuntimeError: Python is not installed as a framework
  62. Arduino IDE is not showing any port macOS
  63. psql: command not found Mac
  64. Can’t connect to MySQL server on ‘127.0.0.1’ (61) on Mac
  65. psql: FATAL: role “postgres” does not exist
  66. Update GCC on OSX
  67. boto3 python 2.7 ImportError: No module named boto3 USER_BASE USER_SITE site packages doesn’t exist
  68. Python: source code string cannot contain null bytes
  69. Python can’t find module NLTK
  70. sed command with -i option failing on Mac, but works on Linux
  71. Mac install and open mysql using terminal
  72. Making sure /usr/local/bin is in my $PATH on mac
  73. Run script on mac prompt “Permission denied”
  74. Finding text inside a folder using terminal
  75. Command not found go — on Mac after installing Go
  76. cannot download, $GOPATH not set
  77. How to install pip for Python 3 on Mac OS X?
  78. What is the difference between MacVim and regular Vim?
  79. gdb debugging in Terminal OS X (10.8.5) with zsh
  80. Updating php version on mac
  81. Kill a python process
  82. Reading syslog output on a Mac
  83. Unmount the directory which is mounted by sshfs in Mac
  84. Failed to launch macOS app built in Xcode
  85. Testing web application on Mac/Safari when I don’t own a Mac
  86. How to completely uninstall Android Studio on Mac?
  87. SQL Client for Mac OS X that works with MS SQL Server
  88. How do you stop MySQL on a Mac OS install?
  89. How can I display the current branch and folder path in terminal?
  90. How to navigate to to different directories in the terminal (mac)?
  91. Is there an equivalent of lsusb for OS X
  92. Where to find extensions installed folder for Google Chrome on Mac?
  93. hat’s a clean way to stop mongod on Mac OS X?
  94. How to install latest version of openssl Mac OS X El Capitan
  95. ERROR: While executing gem … (Gem::FilePermissionError)
  96. Mongod: Command Not Found (OS X)
  97. Open Sublime Text from Terminal in macOS
  98. how to update npm on macOS
  99. Unable to access MySQL after it automatically generated a temporary password
  100. No module named ipykernel_launcher

Leave a Comment