Undefined behaviour under agressive compiler optimizations.

[stolk]

The compiler warns about this, it seems like a real issue:

[armeabi-v7a] Compile thumb : openal <= mixer.c
/home/bram/src/openal-soft/jni/OpenAL/Alc/mixer.c: In function 'Mix_ALfp_6_point32':
/home/bram/src/openal-soft/jni/OpenAL/Alc/mixer.c:226:55: warning: iteration 3u invokes undefined behavior [-Waggressive-loop-optimizations]
DrySend[i][c] = Source->Params.DryGains[i][c];
^
/home/bram/src/openal-soft/jni/OpenAL/Alc/mixer.c:359:1: note: in expansion of macro 'DECL_TEMPLATE'
DECL_TEMPLATE(ALfp, 6, point32)
^
/home/bram/src/openal-soft/jni/OpenAL/Alc/mixer.c:223:5: note: containing loop
for(i = 0;i < Channels;i++)
^
/home/bram/src/openal-soft/jni/OpenAL/Alc/mixer.c:359:1: note: in expansion of macro 'DECL_TEMPLATE'
DECL_TEMPLATE(ALfp, 6, point32)
^
/home/bram/src/openal-soft/jni/OpenAL/Alc/mixer.c: In function 'Mix_ALfp_6_lerp32':
...