Can't install ffmpeg because sdl2 dependency fails as well (macOS Catalina)

[Gertcha]

Output of brew config

HOMEBREW_VERSION: 4.2.9-63-g6a9c9c0
ORIGIN: https://github.com/Homebrew/brew
HEAD: 6a9c9c00a028cf0bcf7da5a9e5b28c861a981ebd
Last commit: 14 hours ago
Core tap HEAD: 0f4edd3bdb5928ef5a8ccb8957d912e50780e446
Core tap last commit: 6 hours ago
Core tap JSON: 21 Feb 22:12 UTC
Core cask tap HEAD: 9ae64255faee24a9121ea233ee8f51a450e1c160
Core cask tap last commit: 5 hours ago
Core cask tap JSON: 21 Feb 22:12 UTC
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 8
HOMEBREW_SORBET_RUNTIME: set
Homebrew Ruby: 3.1.4 => /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/bin/ruby
CPU: octa-core 64-bit ivybridge
Clang: 12.0.0 build 1200
Git: 2.24.3 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 7.64.1 => /usr/bin/curl
macOS: 10.15.7-x86_64
CLT: 12.4.0.0.1.1610135815
Xcode: N/A

Output of brew doctor

Warning: You are using macOS 10.15.
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Description of issue

Am I SOL becuase my macOS is so old? 😮

sdl2 falls over with the following error:

Last 15 lines from /Users/USER/Library/Logs/Homebrew/sdl2/02.make:
  CC     build/SDL_syshaptic.lo
  CC     build/SDL_syspower.lo
  CC     build/SDL_sysfilesystem.lo
  CC     build/SDL_systimer.lo
  CC     build/SDL_rwopsbundlesupport.lo
  CC     build/SDL_poll.lo
/private/tmp/sdl2-20240221-80867-k9njgg/SDL2-2.30.0/src/joystick/iphoneos/SDL_mfijoystick.m:1140:84: error: property 'physicalInputProfile' not found on object of type 'GCController *'
            NSDictionary<NSString *, GCControllerElement *> *elements = controller.physicalInputProfile.elements;
                                                                                   ^
/private/tmp/sdl2-20240221-80867-k9njgg/SDL2-2.30.0/src/joystick/iphoneos/SDL_mfijoystick.m:1141:87: error: property 'physicalInputProfile' not found on object of type 'GCController *'
            NSDictionary<NSString *, GCControllerButtonInput *> *buttons = controller.physicalInputProfile.buttons;
                                                                                      ^
2 errors generated.
make: *** [build/SDL_mfijoystick.lo] Error 1
make: *** Waiting for unfinished jobs....

Thanks for anyone taking the time to offer any help.

[sryze]

I had the same error on my Catalina install.

There is a sort of a hacky solution: you can install sdl2 in debug mode and edit CMakeList.txt to exclude the joystick *.c files from the build, and it will install successfully after that.

I'm sure why ffmpeg needs SDL though, my guess is ffplay. I don't really use ffplay, so can't guarantee that it will work as expected after doing this.

[Gertcha]

Thanks for the pointer.
How do you do that? Would you comment them out? I'm still such a CLI noob.

I ran
brew install --debug sdl2

then got presented with

1. raise
2. ignore
3. backtrace
4. irb
5. shell
Choose an action:

Not sure where to go from here.

[sryze]

1. Choose shell
2. Edit CMakeLists.txt via nano or vim, e.g. type nano CMakeLists.txt
3. Find the line where it says the following (somewhere around line number 2140):

if(SDL_JOYSTICK)
    file(GLOB MFI_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/iphoneos/*.m)

5. Change the condition from if(SDL_JOYSTICK) to if(FALSE) or just remove the whole if() block
6. Save the file and exit vim/nano
7. Execute make - it should compile successfully
8. Exit the shell by typing Ctrl+D
9. Choose ignore

[Gertcha]

Thanks for taking the time to write that.

Alas, it did not work for me, so I appreciate your help even if you're out of ideas or have no wish to get involved further.

I tried both, first changing the condition (if(SDL_JOYSTICK) to if(FALSE)) and then removing the whole block:

if(SDL_JOYSTICK)
    file(GLOB MFI_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/iphoneos/*.m)
    if(IOS OR TVOS)
      file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/steam/*.c)
      set(SDL_JOYSTICK_MFI 1)
      if(IOS)
        set(SDL_FRAMEWORK_COREMOTION 1)
      endif()
      set(SDL_FRAMEWORK_GAMECONTROLLER 1)
      set(SDL_FRAMEWORK_COREHAPTICS 1)
    else()
      file(GLOB JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/darwin/*.c)
      set_property(SOURCE ${MFI_JOYSTICK_SOURCES} APPEND_STRING PROPERTY COMPILE_FLAGS " -fobjc-weak")
      check_objc_source_compiles("
          #include <AvailabilityMacros.h>
          #include <TargetConditionals.h>
          #import <Foundation/Foundation.h>
          #import <GameController/GameController.h>
          #if MAC_OS_X_VERSION_MIN_REQUIRED < 1080
          #error GameController framework doesn't work on this configuration
          #endif
          #if TARGET_CPU_X86
          #error GameController framework doesn't work on this configuration
          #endif
          int main() { return 0; }" HAVE_FRAMEWORK_GAMECONTROLLER)
      check_objc_source_compiles("
          #include <AvailabilityMacros.h>
          #include <TargetConditionals.h>
          #import <Foundation/Foundation.h>
          #import <CoreHaptics/CoreHaptics.h>
          int main() { return 0; }" HAVE_FRAMEWORK_COREHAPTICS)
      if(HAVE_FRAMEWORK_GAMECONTROLLER AND HAVE_FRAMEWORK_COREHAPTICS)
        # Only enable MFI if we also have CoreHaptics to ensure rumble works
        set(SDL_JOYSTICK_MFI 1)
        set(SDL_FRAMEWORK_GAMECONTROLLER 1)
        set(SDL_FRAMEWORK_COREHAPTICS 1)
      endif()
      set(SDL_JOYSTICK_IOKIT 1)
      set(SDL_FRAMEWORK_IOKIT 1)
      set(SDL_FRAMEWORK_FF 1)
    endif()
    list(APPEND SOURCE_FILES ${JOYSTICK_SOURCES} ${MFI_JOYSTICK_SOURCES})
    set(HAVE_SDL_JOYSTICK TRUE)
  endif()

Definitely saved and exited nano correct, executed make but got the following error, which I think is the same:

  CC     build/SDL_mfijoystick.lo
  CC     build/SDL_dummysensor.lo
  CC     build/SDL_dummy_main.lo
  CC     build/SDL_test_assert.lo
  CC     build/SDL_test_common.lo
  CC     build/SDL_test_compare.lo
  CC     build/SDL_test_crc32.lo
  CC     build/SDL_test_font.lo
  CC     build/SDL_test_fuzzer.lo
  CC     build/SDL_test_harness.lo
  CC     build/SDL_test_imageBlit.lo
  CC     build/SDL_test_imageBlitBlend.lo
  CC     build/SDL_test_imageFace.lo
  CC     build/SDL_test_imagePrimitives.lo
/private/tmp/sdl2-20240223-54930-khv9nk/SDL2-2.30.0/src/joystick/iphoneos/SDL_mfijoystick.m:1140:84: error: property 'physicalInputProfile' not found on object
      of type 'GCController *'
            NSDictionary<NSString *, GCControllerElement *> *elements = controller.physicalInputProfile.elements;
                                                                                   ^
/private/tmp/sdl2-20240223-54930-khv9nk/SDL2-2.30.0/src/joystick/iphoneos/SDL_mfijoystick.m:1141:87: error: property 'physicalInputProfile' not found on object
      of type 'GCController *'
            NSDictionary<NSString *, GCControllerButtonInput *> *buttons = controller.physicalInputProfile.buttons;
                                                                                      ^
2 errors generated.
make: *** [build/SDL_mfijoystick.lo] Error 1
make: *** Waiting for unfinished jobs....

Actually, they aren't exactly the same.

[cmsolinger]

This worked for me:
Replace src/joystick/iphoneos/SDL_mfijoystick.m and src/joystick/iphoneos/SDL_mfijoystick_c.h with these files when debugging in shell
libsdl-org/SDL@2f2b44a

[Gertcha]

Thanks for replying.
I managed to figure out how to replace the files, sdl2 then compiled correctly and then so did ffmpeg.

Grateful to you both.