During build I've got the following error:
Linking bin/cifs.upcall
lib/system.o: In function `sys_aio_suspend':
system.c:(.text+0x1ae): undefined reference to `aio_suspend64'
lib/system.o: In function `sys_aio_fsync':
system.c:(.text+0x1d8): undefined reference to `aio_fsync64'
lib/system.o: In function `sys_aio_error':
system.c:(.text+0x1fb): undefined reference to `aio_error64'
lib/system.o: In function `sys_aio_cancel':
system.c:(.text+0x225): undefined reference to `aio_cancel64'
lib/system.o: In function `sys_aio_return':
system.c:(.text+0x248): undefined reference to `aio_return64'
lib/system.o: In function `sys_aio_write':
system.c:(.text+0x26b): undefined reference to `aio_write64'
lib/system.o: In function `sys_aio_read':
system.c:(.text+0x28e): undefined reference to `aio_read64'
lib/system.o: In function `set_process_capability':
system.c:(.text+0xc70): undefined reference to `cap_get_proc'
system.c:(.text+0xd29): undefined reference to `cap_free'
system.c:(.text+0xda3): undefined reference to `cap_free'
system.c:(.text+0xdb2): undefined reference to `cap_free'
system.c:(.text+0xdf7): undefined reference to `cap_set_flag'
system.c:(.text+0xe1b): undefined reference to `cap_set_flag'
system.c:(.text+0xe23): undefined reference to `cap_set_proc'
lib/access.o: In function `string_match':
access.c:(.text+0x83d): undefined reference to `yp_get_default_domain'
lib/util.o: In function `automount_lookup':
util.c:(.text+0x3b26): undefined reference to `yp_get_default_domain'
util.c:(.text+0x3b7d): undefined reference to `yperr_string'
util.c:(.text+0x3c2b): undefined reference to `yp_match'
util.c:(.text+0x3dc2): undefined reference to `yperr_string'

I've made make to output what it calls to build this object and here is the output:

============================================================================
Linking bin/cifs.upcall
i686-pc-linux-gnu-gcc  -O -D_SAMBA_BUILD_=3  -Iinclude -I./include  -I. -I. -I./lib/replace -I./lib/talloc -I./lib/tdb/include -I./libaddns -I./librpc -DHAVE_CONFIG_H  -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Iinclude -I./include -I. -I. -I./lib/replace -I./lib/talloc -I./lib/tdb/include -I./libaddns -I./librpc -I./popt -DLDAP_DEPRECATED   -I/usr/include -I/var/tmp/portage/net-fs/samba-3.3.0/work/samba-3.3.0/source/lib -D_SAMBA_BUILD_=3 -o bin/cifs.upcall client/cifs.upcall.o -Wl,--export-dynamic -pie -Wl,-z,relro -Wl,--as-needed,-O1,--hash-style=gnu,--sort-common -L./bin \
                -lkeyutils -lcrypt -lcap -lresolv -lresolv -lnsl -ldl -lrt libsmb/libsmb_cache.o libsmb/libsmb_compat.o libsmb/libsmb_context.o libsmb/libsmb_dir.o libsmb/libsmb_file.o libsmb/libsmb_misc.o libsmb/libsmb_path.o libsmb/libsmb_printjob.o libsmb/libsmb_server.o libsmb/libsmb_stat.o libsmb/libsmb_xattr.o libsmb/libsmb_setget.o dynconfig.o param/loadparm.o param/params.o param/util.o lib/sharesec.o lib/ldap_debug_handler.o registry/reg_api.o registry/reg_dispatcher.o registry/reg_cachehook.o registry/regfio.o registry/reg_objects.o registry/reg_util.o lib/util_reg_api.o lib/util_nttoken.o registry/reg_backend_db.o registry/reg_init_basic.o registry/reg_backend_smbconf.o registry/reg_init_smbconf.o lib/smbconf/smbconf.o lib/smbconf/smbconf_util.o lib/smbconf/smbconf_reg.o lib/smbconf/smbconf_txt.o lib/smbconf/smbconf_init.o lib/privileges_basic.o lib/replace/replace.o lib/replace/snprintf.o lib/replace/getpass.o lib/socket_wrapper/socket_wrapper.o lib/nss_wrapper/nss_wrapper.o lib/messages.o librpc/gen_ndr/ndr_messaging.o lib/messages_local.o lib/messages_ctdbd.o lib/packet.o lib/ctdbd_conn.o lib/talloc_stack.o lib/interfaces.o lib/rbtree.o lib/memcache.o lib/util_transfer_file.o lib/async_req.o lib/async_sock.o lib/util_tdb.o lib/dbwrap.o lib/dbwrap_tdb.o lib/dbwrap_ctdb.o lib/dbwrap_rbt.o  lib/version.o lib/charcnv.o lib/debug.o lib/fault.o lib/interface.o lib/md4.o lib/pidfile.o lib/signal.o lib/system.o lib/sendfile.o lib/recvfile.o lib/time.o lib/ufc.o lib/genrand.o lib/username.o lib/util_pw.o lib/access.o lib/smbrun.o lib/bitmap.o lib/crc32.o lib/dprintf.o lib/xfile.o lib/wins_srv.o lib/util_reg.o lib/util_str.o lib/clobber.o lib/util_sid.o lib/util_uuid.o lib/util_unistr.o lib/util_file.o lib/data_blob.o lib/util.o lib/util_sock.o lib/sock_exec.o lib/util_sec.o lib/substitute.o lib/fsusage.o lib/dbwrap_util.o lib/ms_fnmatch.o lib/select.o lib/errmap_unix.o lib/tallocmsg.o lib/dmallocmsg.o libsmb/smb_signing.o lib/md5.o lib/hmacmd5.o lib/arc4.o lib/iconv.o lib/pam_errors.o intl/lang_tdb.o lib/conn_tdb.o lib/adt_tree.o lib/gencache.o lib/module.o lib/events.o lib/ldap_escape.o lib/secdesc.o lib/util_seaccess.o lib/secace.o lib/secacl.o libads/krb5_errs.o lib/system_smbd.o lib/audit.o librpc/ndr/ndr_basic.o librpc/ndr/ndr.o librpc/ndr/ndr_misc.o librpc/gen_ndr/ndr_misc.o librpc/gen_ndr/ndr_security.o librpc/ndr/ndr_sec_helper.o librpc/ndr/ndr_string.o librpc/ndr/sid.o librpc/ndr/uuid.o lib/file_id.o lib/idmap_cache.o lib/dummysmbd.o lib/dummyroot.o libsmb/clientgen.o libsmb/cliconnect.o libsmb/clifile.o libsmb/clikrb5.o libsmb/clispnego.o libsmb/asn1.o libsmb/clirap.o libsmb/clierror.o libsmb/climessage.o libsmb/clireadwrite.o libsmb/clilist.o libsmb/cliprint.o libsmb/clitrans.o libsmb/clisecdesc.o libsmb/clidgram.o libsmb/clistr.o libsmb/cliquota.o libsmb/clifsinfo.o libsmb/clidfs.o libsmb/smberr.o libsmb/credentials.o libsmb/pwd_cache.o libsmb/clioplock.o libsmb/clirap2.o libsmb/smb_seal.o libsmb/async_smb.o libsmb/ntlm_check.o libsmb/ntlmssp.o libsmb/ntlmssp_sign.o libsmb/nterr.o libsmb/doserr.o libsmb/errormap.o libsmb/dcerpc_err.o libsmb/smbdes.o libsmb/smbencrypt.o libsmb/ntlmssp_parse.o rpc_parse/parse_prs.o rpc_parse/parse_misc.o rpc_parse/parse_sec.o passdb/secrets.o passdb/machine_sid.o libsmb/unexpected.o libsmb/namecache.o libsmb/nmblib.o libsmb/namequery.o libsmb/conncache.o libads/dns.o libcli/nbt/nbtname.o libcli/ndr_netlogon.o libcli/netlogon.o librpc/gen_ndr/ndr_nbt.o librpc/gen_ndr/ndr_svcctl.o libads/cldap.o librpc/ndr/ndr_drsuapi.o librpc/ndr/ndr_compression.o librpc/gen_ndr/ndr_drsuapi.o librpc/gen_ndr/ndr_drsblobs.o lib/compression/mszip.o libads/kerberos.o libads/ads_status.o rpc_client/cli_lsarpc.o rpc_client/cli_samr.o rpc_client/cli_netlogon.o rpc_client/cli_reg.o rpc_client/cli_pipe.o rpc_client/cli_spoolss.o rpc_client/cli_spoolss_notify.o rpc_client/cli_svcctl.o rpc_client/init_samr.o librpc/rpc/dcerpc.o librpc/rpc/binding.o librpc/gen_ndr/cli_lsa.o librpc/gen_ndr/cli_dfs.o librpc/gen_ndr/cli_echo.o librpc/gen_ndr/cli_srvsvc.o librpc/gen_ndr/cli_svcctl.o librpc/gen_ndr/cli_winreg.o librpc/gen_ndr/cli_initshutdown.o librpc/gen_ndr/cli_eventlog.o librpc/gen_ndr/cli_wkssvc.o librpc/gen_ndr/cli_netlogon.o librpc/gen_ndr/cli_samr.o librpc/gen_ndr/cli_dssetup.o librpc/gen_ndr/cli_ntsvcs.o librpc/gen_ndr/cli_epmapper.o librpc/gen_ndr/cli_drsuapi.o librpc/gen_ndr/ndr_wkssvc.o librpc/gen_ndr/ndr_samr.o librpc/gen_ndr/ndr_lsa.o librpc/gen_ndr/ndr_dfs.o librpc/gen_ndr/ndr_echo.o librpc/gen_ndr/ndr_winreg.o librpc/gen_ndr/ndr_initshutdown.o librpc/gen_ndr/ndr_srvsvc.o librpc/gen_ndr/ndr_eventlog.o librpc/gen_ndr/ndr_netlogon.o librpc/ndr/ndr_netlogon.o librpc/gen_ndr/ndr_dssetup.o librpc/gen_ndr/ndr_notify.o librpc/gen_ndr/ndr_xattr.o librpc/gen_ndr/ndr_epmapper.o librpc/gen_ndr/ndr_ntsvcs.o rpc_client/ndr.o rpc_parse/parse_rpc.o rpc_client/init_netlogon.o rpc_client/init_lsa.o rpc_client/init_srvsvc.o rpc_parse/parse_spoolss.o rpc_parse/parse_eventlog.o rpc_parse/parse_buffer.o rpc_parse/parse_ntsvcs.o rpc_parse/parse_svcctl.o passdb/pdb_get_set.o passdb/passdb.o passdb/pdb_interface.o passdb/util_wellknown.o passdb/util_builtin.o passdb/pdb_compat.o passdb/util_unixsids.o passdb/lookup_sid.o passdb/login_cache.o  passdb/pdb_ldap.o passdb/pdb_nds.o passdb/pdb_smbpasswd.o passdb/pdb_tdb.o lib/account_pol.o lib/privileges.o lib/util_nscd.o lib/winbind_util.o lib/smbldap.o lib/smbldap_util.o groupdb/mapping.o groupdb/mapping_tdb.o groupdb/mapping_ldb.o lib/ldb/common/ldb.o lib/ldb/common/ldb_ldif.o lib/ldb/common/ldb_parse.o lib/ldb/common/ldb_msg.o lib/ldb/common/ldb_utf8.o lib/ldb/common/ldb_debug.o lib/ldb/common/ldb_modules.o lib/ldb/common/ldb_dn.o lib/ldb/common/ldb_match.o lib/ldb/common/ldb_attributes.o lib/ldb/common/attrib_handlers.o lib/ldb/common/ldb_controls.o lib/ldb/common/qsort.o lib/ldb/ldb_tdb/ldb_tdb.o lib/ldb/ldb_tdb/ldb_pack.o lib/ldb/ldb_tdb/ldb_search.o lib/ldb/ldb_tdb/ldb_index.o lib/ldb/ldb_tdb/ldb_cache.o lib/ldb/ldb_tdb/ldb_tdb_wrap.o  lib/ldb/modules/operational.o lib/ldb/modules/rdn_name.o lib/ldb/modules/objectclass.o lib/ldb/modules/paged_results.o lib/ldb/modules/sort.o lib/ldb/modules/asq.o -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lresolv -ldl \
                -lldap -llber  -lpopt -ltalloc -lwbclient \
                -ltdb
lib/system.o: In function `sys_aio_suspend':
system.c:(.text+0x1ae): undefined reference to `aio_suspend64'
lib/system.o: In function `sys_aio_fsync':
system.c:(.text+0x1d8): undefined reference to `aio_fsync64'
lib/system.o: In function `sys_aio_error':
[and so on...]
============================================================================