Compile errors on AIX

I had no problems on Solaris and HP, but trying to compile
Postgres 7.3.2 on AIX I'm getting this errors:

.../src/backend/postgres.imp -Wl,-bE:libpgtcl.exp
ld: 0711-224 WARNING: Duplicate symbol: .pqsignal
ld: 0711-224 WARNING: Duplicate symbol: .pg_char_to_encoding
ld: 0711-224 WARNING: Duplicate symbol: .pg_valid_server_encoding
ld: 0711-224 WARNING: Duplicate symbol: .pg_valid_client_encoding
ld: 0711-224 WARNING: Duplicate symbol: .pg_encoding_to_char
ld: 0711-224 WARNING: Duplicate symbol: .pg_char_to_encname_struct
ld: 0711-224 WARNING: Duplicate symbol: pg_enc2name_tbl
ld: 0711-224 WARNING: Duplicate symbol: pg_encname_tbl_sz
ld: 0711-224 WARNING: Duplicate symbol: pg_encname_tbl
ld: 0711-224 WARNING: Duplicate symbol: .pg_encoding_mblen
ld: 0711-224 WARNING: Duplicate symbol: .pg_utf_mblen
ld: 0711-224 WARNING: Duplicate symbol: .pg_encoding_max_length
ld: 0711-224 WARNING: Duplicate symbol: .pg_mic_mblen
ld: 0711-224 WARNING: Duplicate symbol: .pg_mule_mblen
ld: 0711-224 WARNING: Duplicate symbol: pg_wchar_table
ld: 0711-224 WARNING: Duplicate symbol: pg_utf_mblen
ld: 0711-224 WARNING: Duplicate symbol: pg_mule_mblen
ld: 0711-224 WARNING: Duplicate symbol: .DLNewElem
ld: 0711-224 WARNING: Duplicate symbol: .DLMoveToFront
ld: 0711-224 WARNING: Duplicate symbol: .DLRemTail
ld: 0711-224 WARNING: Duplicate symbol: .DLRemHead
ld: 0711-224 WARNING: Duplicate symbol: .DLAddTail
ld: 0711-224 WARNING: Duplicate symbol: .DLAddHead
ld: 0711-224 WARNING: Duplicate symbol: .DLRemove
ld: 0711-224 WARNING: Duplicate symbol: .DLFreeElem
ld: 0711-224 WARNING: Duplicate symbol: .DLInitElem
ld: 0711-224 WARNING: Duplicate symbol: .DLFreeList
ld: 0711-224 WARNING: Duplicate symbol: .DLInitList
ld: 0711-224 WARNING: Duplicate symbol: .DLNewList
ld: 0711-224 WARNING: Duplicate symbol: .EncryptMD5
ld: 0711-224 WARNING: Duplicate symbol: .md5_hash
ld: 0711-224 WARNING: Duplicate symbol: .lo_export
ld: 0711-224 WARNING: Duplicate symbol: .lo_import
ld: 0711-224 WARNING: Duplicate symbol: .lo_unlink
ld: 0711-224 WARNING: Duplicate symbol: .lo_tell
ld: 0711-224 WARNING: Duplicate symbol: .lo_creat
ld: 0711-224 WARNING: Duplicate symbol: .lo_lseek
ld: 0711-224 WARNING: Duplicate symbol: .lo_write
ld: 0711-224 WARNING: Duplicate symbol: .lo_read
ld: 0711-224 WARNING: Duplicate symbol: .lo_close
ld: 0711-224 WARNING: Duplicate symbol: .lo_open
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more
information.
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetVar
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetDouble
ld: 0711-317 ERROR: Undefined symbol: .Tcl_SetVar2
ld: 0711-317 ERROR: Undefined symbol: .Tcl_SetVar
ld: 0711-317 ERROR: Undefined symbol: .Tcl_AppendResult
ld: 0711-317 ERROR: Undefined symbol: .Tcl_Preserve
ld: 0711-317 ERROR: Undefined symbol: .Tcl_Alloc
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GlobalEval
ld: 0711-317 ERROR: Undefined symbol: .Tcl_AddErrorInfo
ld: 0711-317 ERROR: Undefined symbol: .Tcl_BackgroundError
ld: 0711-317 ERROR: Undefined symbol: .Tcl_Release
ld: 0711-317 ERROR: Undefined symbol: .Tcl_Free
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetChannel
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetChannelType
ld: 0711-317 ERROR: Undefined symbol: .Tcl_SetResult
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetInt
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetChannelInstanceData
ld: 0711-317 ERROR: Undefined symbol: .Tcl_QueueEvent
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DeleteChannelHandler
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DeleteEvents
ld: 0711-317 ERROR: Undefined symbol: .Tcl_CreateChannelHandler
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetChannelName
ld: 0711-317 ERROR: Undefined symbol: .Tcl_ResetResult
ld: 0711-317 ERROR: Undefined symbol: .Tcl_Realloc
ld: 0711-317 ERROR: Undefined symbol: .Tcl_FirstHashEntry
ld: 0711-317 ERROR: Undefined symbol: .Tcl_NextHashEntry
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DeleteHashTable
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DontCallWhenDeleted
ld: 0711-317 ERROR: Undefined symbol: .Tcl_UnregisterChannel
ld: 0711-317 ERROR: Undefined symbol: .Tcl_EventuallyFree
ld: 0711-317 ERROR: Undefined symbol: .Tcl_MakeTcpClientChannel
ld: 0711-317 ERROR: Undefined symbol: .Tcl_RegisterChannel
ld: 0711-317 ERROR: Undefined symbol: .Tcl_CreateChannel
ld: 0711-317 ERROR: Undefined symbol: .Tcl_SetChannelOption
ld: 0711-317 ERROR: Undefined symbol: .Tcl_InitHashTable
ld: 0711-317 ERROR: Undefined symbol: .Tcl_CallWhenDeleted
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DeleteHashEntry
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetStringFromObj
ld: 0711-317 ERROR: Undefined symbol: .Tcl_GetIntFromObj
ld: 0711-317 ERROR: Undefined symbol: .Tcl_NewIntObj
ld: 0711-317 ERROR: Undefined symbol: .Tcl_SetObjResult
ld: 0711-317 ERROR: Undefined symbol: .Tcl_NewStringObj
ld: 0711-317 ERROR: Undefined symbol: .Tcl_ObjSetVar2
ld: 0711-317 ERROR: Undefined symbol: .Tcl_AppendElement
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DStringInit
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DStringAppendElement
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DStringFree
ld: 0711-317 ERROR: Undefined symbol: .Tcl_Eval
ld: 0711-317 ERROR: Undefined symbol: .Tcl_UnsetVar
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DStringStartSublist
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DStringEndSublist
ld: 0711-317 ERROR: Undefined symbol: .Tcl_DStringResult
ld: 0711-317 ERROR: Undefined symbol: .Tcl_CreateCommand
ld: 0711-317 ERROR: Undefined symbol: .Tcl_CreateObjCommand
ld: 0711-317 ERROR: Undefined symbol: .Tcl_PkgProvide
make[4]: *** [libpgtcl.so] Error 8
make[4]: Leaving directory ...

Does anyone have a suggestion, or perhaps an experience building on AIX?
Thanks,
Mike.