test/oldapi.c(https://github.com/alsa-project/alsa-lib/blob/master/test/oldapi.c)、
oldapi.c:40:6: warning: incompatible function pointer types assigning to 'myfcn *' (aka 'void (*)(void *)') from 'int (*)(const snd_pcm_hw_params_t *)' (aka 'int (*)(const struct _snd_pcm_hw_params *)') [-Wincompatible-function-pointer-types]
fcn = &snd_pcm_hw_params_get_access;
のwarningをどう潰すか頭が痛い。単純にfcn = (myfcn *)&うだうだ、でキャストして良いものかどうか…