cc -O2 -pipe  -pthread  -Wall -Wextra -Werror=implicit-function-declaration aio/aio_fsync.c -o aio/aio_fsync -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE  -lm -lpthread 
aio/aio_fsync.c:4:10: fatal error: 'aio.h' file not found
    4 | #include <aio.h>
      |          ^~~~~~~
1 error generated.