sudo ./mk
In file included from sbagen.c:220:0:
oggdec.c: In function ‘looper_sched’:
oggdec.c:602:8: warning: variable ‘update’ set but not used [-Wunused-but-set-variable]
    int update= 0;
        ^
/tmp/ccAQmKNW.o: In function `init_sin_table':
sbagen.c:(.text+0x3422): undefined reference to `sin'
/tmp/ccAQmKNW.o: In function `inbuf_start':
sbagen.c:(.text+0x3f2c): undefined reference to `pthread_create'
/tmp/ccAQmKNW.o: In function `ogg_init':
sbagen.c:(.text+0x47cd): undefined reference to `pow'
/tmp/ccAQmKNW.o: In function `mp3_init':
sbagen.c:(.text+0x4a35): undefined reference to `pthread_create'
/tmp/ccAQmKNW.o: In function `sinc_interpolate':
sbagen.c:(.text+0xa22d): undefined reference to `sin'
/tmp/ccAQmKNW.o: In function `create_drop':
sbagen.c:(.text+0xb9d0): undefined reference to `log'
sbagen.c:(.text+0xb9ec): undefined reference to `exp'
collect2: error: ld returned 1 exit status