* include/netdb.h: Change type of first parameter of __getnetbyaddr_r.
* inet/getnetbyad.c: Likewise.
* inet/getnetbyad_r.c: Likewise.
* nis/nss_nis/nis-network.c: Likewise.
* nis/nssplus_nis/nisplus-network.c: Likewise.
* nss/nss_files/files-network.c: Likewise.
* resolv/netdb.h: Define uint32_t if not already happened.
Include bits/netdb.h. Remove definition of struct netent.
Change type of first parameter of getnetbyaddr_r and getnetbyaddr.
* sysdeps/generic/stdint.h: Allow definition of uint32_t elsewhere.
* sysdeps/generic/bits/netdb.h: New file.
* sysdeps/unix/sysv/linux/alpha/bits/netdb.h: New file.
