When linking with -Wl,--no-undefined -Wl,--as-needed, cifs.upcall will not be linked successfully, reporting undefined references.

Linking bin/cifs.upcall
../librpc/ndr/ndr_compression.o: In function `ndr_push_compression_end':
ndr_compression.c:(.text+0x30f): undefined reference to `deflateInit2_'
ndr_compression.c:(.text+0x31c): undefined reference to `zError'
ndr_compression.c:(.text+0x34f): undefined reference to `deflate'
ndr_compression.c:(.text+0x361): undefined reference to `zError'
ndr_compression.c:(.text+0x3bf): undefined reference to `deflateReset'
ndr_compression.c:(.text+0x3cc): undefined reference to `zError'
ndr_compression.c:(.text+0x400): undefined reference to `deflateSetDictionary'
ndr_compression.c:(.text+0x40d): undefined reference to `zError'

This seems to be due to incorrect linking order (see http://wiki.mandriva.com/en/Overlinking#Wrong_linking_order)

The same error message is reported for libnetapi, but due to -lz being missing (underlinked breaking --as-needed), See http://wiki.mandriva.com/en/Underlinking.

Linking shared library bin/libnetapi.so.0                                            
../librpc/ndr/ndr_compression.o: In function `ndr_push_compression_end':             
ndr_compression.c:(.text+0x30f): undefined reference to `deflateInit2_'              
ndr_compression.c:(.text+0x31c): undefined reference to `zError'                     
ndr_compression.c:(.text+0x34f): undefined reference to `deflate'                    
ndr_compression.c:(.text+0x361): undefined reference to `zError'                     
ndr_compression.c:(.text+0x3bf): undefined reference to `deflateReset'               
ndr_compression.c:(.text+0x3cc): undefined reference to `zError'                     
ndr_compression.c:(.text+0x400): undefined reference to `deflateSetDictionary'       
ndr_compression.c:(.text+0x40d): undefined reference to `zError'                     
../librpc/ndr/ndr_compression.o: In function `ndr_pull_compression_start':           
ndr_compression.c:(.text+0x8f1): undefined reference to `inflateInit2_'              
ndr_compression.c:(.text+0x8fe): undefined reference to `zError'                     
ndr_compression.c:(.text+0x936): undefined reference to `inflate'                    
ndr_compression.c:(.text+0x948): undefined reference to `zError'                     
ndr_compression.c:(.text+0x9f2): undefined reference to `inflateReset'               
ndr_compression.c:(.text+0xa00): undefined reference to `zError'                     
ndr_compression.c:(.text+0xa32): undefined reference to `inflateSetDictionary'       
ndr_compression.c:(.text+0xa40): undefined reference to `zError'

libwbclient also has the wrong linking order (objects should precede libraries):

Linking shared library bin/libwbclient.so.0                                          
utils/smbfilter.c: In function ‘filter_request’:                                     
utils/smbfilter.c:115: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result                                                             
../nsswitch/libwbclient/wbclient.o: In function `wbcLibraryDetails':                 
wbclient.c:(.text+0xf7): undefined reference to `talloc_named_const'                 
wbclient.c:(.text+0x119): undefined reference to `talloc_strdup'                     
wbclient.c:(.text+0x13f): undefined reference to `talloc_free'                       
../nsswitch/libwbclient/wbclient.o: In function `wbcFreeMemory':                     
wbclient.c:(.text+0x17b): undefined reference to `talloc_free'


Patches to follow.