Installation:

Copy SDK/#? ALL SDK:
MakeLink SOFT SDK:local/newlib/lib/libSDL_mixer.so libSDL_mixer-1.2.so.12

Changes:

SDL_mixer 1.2.12 (9.12.2017)
- Recompiled and relinked with latest .so files.

SDL_mixer 1.2.12 (13.3.2013)
- Added version number to sobj name.
- Enabled modplug module support.

SDL_mixer 1.2.12 (23.7.2012)
- Disabled usage of SDL_LoadObject() as this feature is not implemented in
  current AmigaOS 4.x SDL.

--- original readme ---

SDL_mixer 1.2

The latest version of this library is available from:
http://www.libsdl.org/projects/SDL_mixer/

Due to popular demand, here is a simple multi-channel audio mixer.
It supports 8 channels of 16 bit stereo audio, plus a single channel
of music, mixed by the popular MikMod MOD, Timidity MIDI and SMPEG MP3
libraries.

See the header file SDL_mixer.h and the examples playwave.c and playmus.c
for documentation on this mixer library.

The mixer can currently load Microsoft WAVE files and Creative Labs VOC
files as audio samples, and can load MIDI files via Timidity and the
following music formats via MikMod:  .MOD .S3M .IT .XM. It can load
Ogg Vorbis streams as music if built with Ogg Vorbis or Tremor libraries,
and finally it can load MP3 music using the SMPEG or libmad libraries.

Tremor decoding is disabled by default; you can enable it by passing
	--enable-music-ogg-tremor
to configure, or by defining OGG_MUSIC and OGG_USE_TREMOR.

libmad decoding is disabled by default; you can enable it by passing
	--enable-music-mp3-mad
to configure, or by defining MP3_MAD_MUSIC
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
WARNING: The license for libmad is GPL, which means that in order to
         use it your application must also be GPL!
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The process of mixing MIDI files to wave output is very CPU intensive,
so if playing regular WAVE files sound great, but playing MIDI files
sound choppy, try using 8-bit audio, mono audio, or lower frequencies.

To play MIDI files, you'll need to get a complete set of GUS patches
from:
http://www.libsdl.org/projects/mixer/timidity/timidity.tar.gz
and unpack them in /usr/local/lib under UNIX, and C:\ under Win32.

This library is under the zlib license, see the file "COPYING" for details.

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[unknown]                11572   31955  36.2% -lh5- 5896 Dec  9 10:51 libSDL_mixer-1.2.12/bin/playmus
[unknown]                 9931   25028  39.7% -lh5- 69e6 Dec  9 10:51 libSDL_mixer-1.2.12/bin/playwave
[unknown]                 5971   15457  38.6% -lh5- 28d2 Jan 16  2012 libSDL_mixer-1.2.12/CHANGES
[unknown]                  531     974  54.5% -lh5- c628 Jan 16  2012 libSDL_mixer-1.2.12/COPYING
[unknown]                 1252    2548  49.1% -lh5- 904c Dec  9 10:56 libSDL_mixer-1.2.12/libsdl_mixer.readme
[unknown]                  887    1848  48.0% -lh5- 8ad2 Jan 16  2012 libSDL_mixer-1.2.12/README
[unknown]                 8631   27739  31.1% -lh5- 8869 Mar 12  2013 libSDL_mixer-1.2.12/SDK/local/common/include/SDL/SDL_mixer.h
[unknown]               343935  803146  42.8% -lh5- 34d2 Dec  9 10:48 libSDL_mixer-1.2.12/SDK/local/newlib/lib/libSDL_mixer-1.2.so.12
[unknown]                  544    1061  51.3% -lh5- bcf8 Mar 13  2013 libSDL_mixer-1.2.12/SDK/local/newlib/lib/libSDL_mixer.la
[unknown]                  188     282  66.7% -lh5- 741e Mar 13  2013 libSDL_mixer-1.2.12/SDK/local/newlib/lib/pkgconfig/SDL_mixer.pc
[unknown]                  438     874  50.1% -lh5- 6cfb Mar 13  2013 libSDL_mixer-1.2.12/timidity_config.h.diff
[unknown]               383692  923606  41.5% -lh5- 4232 Dec  9 10:59 libSDL_mixer-1.2.12/SDK/local/newlib/lib/libSDL_mixer.a
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total        12 files  767572 1834518  41.8%            Dec  9 19:54