Hi,
some funcs in sys/sysconf.h leave unimpletmented, for example:
get_nprocs/_conf and other two.

Even these funcs are rare used, I still find a problem in jamvm(for get_nprocs), defined but unimplemented.

I use below codes to fix:

#define get_nprocs_conf() (sysconf(_SC_NPROCESSORS_CONF))
#define get_nprocs() (sysconf(_SC_NPROCESSORS_ONLN))

It seems ok.