Don't use AC_CANONICAL_SYSTEM, only use AC_CANONICAL_HOST.
Don't use AC_CANONICAL_SYSTEM, only use AC_CANONICAL_HOST.

Since alsa-lib is not a tool generating architecture code, the target
definition does not matter, instead use $host and $build properly.

See http://blog.flameeyes.eu/2008/10/11 for a detailed explanation of
the problem and the fix.

Signed-off-by: Diego E. 'Flameeyes' Pettenò <99325f48769a47b9aabe48dd7058a851b4e7dc6c@gmail.com>

alsa-project/alsa-lib,mikelima/alsa-lib,takaswie/alsa-lib,mengdonglin/alsa-lib,lgirdwood/alsa-lib,mikelima/alsa-lib,mengdonglin/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,zedongchen/alsa-lib,gittup/alsa-lib,Distrotech/alsa-lib,mengdonglin/alsa-lib,mikelima/alsa-lib,Distrotech/alsa-lib,takaswie/alsa-lib,mengdonglin/alsa-lib,lgirdwood/alsa-lib,tiwai/alsa-lib,gittup/alsa-lib,zedongchen/alsa-lib,gittup/alsa-lib,alsa-project/alsa-lib,lgirdwood/alsa-lib,mikelima/alsa-lib,zedongchen/alsa-lib,alsa-project/alsa-lib,mikelima/alsa-lib,lgirdwood/alsa-lib,Distrotech/alsa-lib,tiwai/alsa-lib,takaswie/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,tiwai/alsa-lib,lgirdwood/alsa-lib,tiwai/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,takaswie/alsa-lib,mengdonglin/alsa-lib,gittup/alsa-lib