audio_sdl2: Update for mixer v2.0.2 support

[ghost]

Quick fix for #5457. The MIX_INIT_* flags no longer represent specific libraries, but instead "abstract format types" see here. It appears like the proper way to query for the exact library support is has_music, but that raises many questions.

This should in theory work with old and new versions, but I looked very quickly at the upstream changes... there could be other problems left to fix

[ghost]

This fixes the issue regarding the sdl2 error ^_^

This was tested on:

OS X: 10.13
Python: 3.6
Xcode: 9.1
Brew installation of sdl packages

[KeyWeeUsr]

Thanks!

[ghost]

Can you please suggest what needs to be done in order to install "kivy"? I get the following error when I run "pip install kivy".

/private/var/folders/1v/fsz767yj41q7hx2pd6kmzpfr0000gn/T/pip-build-Gtlg9Q/kivy/kivy/core/audio/audio_sdl2.c:1742:63: error: use of undeclared identifier 'MIX_INIT_MODPLUG'; did you mean 'MIX_INIT_MOD'?
__pyx_v_want_flags = (__pyx_v_want_flags | ((MIX_INIT_MOD | MIX_INIT_MODPLUG) | MIX_INIT_FLUIDSYNTH));
^~~~~~~~~~~~~~~~
MIX_INIT_MOD
/usr/local/include/SDL2/SDL_mixer.h:80:5: note: 'MIX_INIT_MOD' declared here
MIX_INIT_MOD = 0x00000002,
^
/private/var/folders/1v/fsz767yj41q7hx2pd6kmzpfr0000gn/T/pip-build-Gtlg9Q/kivy/kivy/core/audio/audio_sdl2.c:1742:83: error: use of undeclared identifier 'MIX_INIT_FLUIDSYNTH'
__pyx_v_want_flags = (__pyx_v_want_flags | ((MIX_INIT_MOD | MIX_INIT_MODPLUG) | MIX_INIT_FLUIDSYNTH));
^
/private/var/folders/1v/fsz767yj41q7hx2pd6kmzpfr0000gn/T/pip-build-Gtlg9Q/kivy/kivy/core/audio/audio_sdl2.c:5262:69: error: use of undeclared identifier 'MIX_INIT_MODPLUG'; did you mean 'MIX_INIT_MOD'?
__pyx_t_2 = ((__pyx_v_4kivy_4core_5audio_10audio_sdl2_mix_flags & MIX_INIT_MODPLUG) != 0);
^~~~~~~~~~~~~~~~
MIX_INIT_MOD
/usr/local/include/SDL2/SDL_mixer.h:80:5: note: 'MIX_INIT_MOD' declared here
MIX_INIT_MOD = 0x00000002,
^
3 errors generated.
error: command 'gcc' failed with exit status 1

[ghost]

@sp- Please use the development version of kivy which indicated on the kivy website MacOS installation.

pip install http://github.com/kivy/kivy/archive/master.zip

[jdsayle]

@lfasmpao Big thanks!

Wasn't able to install (last installation step) using 'pip install kivy' form within my virtualenv. 'pip install http://github.com/kivy/kivy/archive/master.zip' worked for me as well.

System specs:

• OSX: 10.13.1
• Python: 3.6.2
• Xcode: command-line tools (v. 9.1.0.0.1.1508540944)
• Kivy: latest Dev build as of the writing of this post
• Kivy installation method: brew + pip

[AndreMiras]

I confirm it fixes it also on Ubuntu 18.04. See log extract below:

pip install Kivy==1.10.0
...
-Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/tmp/pip-install-m41uwbhb/Kivy/kivy/include -I/usr/local/include/SDL2 -I/usr/include/SDL2 -I/usr/include/SDL2 -I/usr/include/python3.6m -I/home/
andre/workspace/EtherollApp/venv/include/python3.6m -c /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c -o build/temp.linux-x86_64-3.6/tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.o
    /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c: In function ‘__pyx_f_4kivy_4core_5audio_10audio_sdl2_mix_init’:
    /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c:1722:63: error: ‘MIX_INIT_MODPLUG’ undeclared (first use in this function); did you mean ‘MIX_INIT_MOD’?
       __pyx_v_want_flags = (__pyx_v_want_flags | ((MIX_INIT_MOD | MIX_INIT_MODPLUG) | MIX_INIT_FLUIDSYNTH));
                                                                   ^~~~~~~~~~~~~~~~
                                                                   MIX_INIT_MOD
    /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c:1722:63: note: each undeclared identifier is reported only once for each function it appears in
    /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c:1722:83: error: ‘MIX_INIT_FLUIDSYNTH’ undeclared (first use in this function); did you mean ‘MIX_INIT_MID’?
       __pyx_v_want_flags = (__pyx_v_want_flags | ((MIX_INIT_MOD | MIX_INIT_MODPLUG) | MIX_INIT_FLUIDSYNTH));
                                                                                       ^~~~~~~~~~~~~~~~~~~
                                                                                       MIX_INIT_MID
    /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c: In function ‘__pyx_pf_4kivy_4core_5audio_10audio_sdl2_9MusicSDL2_extensions’:
    /tmp/pip-install-m41uwbhb/Kivy/kivy/core/audio/audio_sdl2.c:5242:69: error: ‘MIX_INIT_MODPLUG’ undeclared (first use in this function); did you mean ‘MIX_INIT_MOD’?
       __pyx_t_2 = ((__pyx_v_4kivy_4core_5audio_10audio_sdl2_mix_flags & MIX_INIT_MODPLUG) != 0);
                                                                         ^~~~~~~~~~~~~~~~
                                                                         MIX_INIT_MOD
     error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

    ----------------------------------------
Command "/home/andre/workspace/EtherollApp/venv/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-m41uwbhb/Kivy/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n
', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-p6ma30ui/install-record.txt --single-version-externally-managed --compile --install-headers /home/andre/workspace/EtherollApp/
venv/include/site/python3.6/Kivy" failed with error code 1 in /tmp/pip-install-m41uwbhb/Kivy/
Makefile:14: recipe for target 'virtualenv' failed
make: *** [virtualenv] Error 1

Installing from that commit hash fixed it:

pip install 'https://github.com/kivy/kivy/archive/d8ef8c2834293098bc404c0432049b2761f9b721.zip#egg=kivy