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I'm building the latest Samba 4 on Centos 6.4. From running configure a couple of times, I already figured out almost all of the needed packages. Almost, because there is one dependency I cannot figure out: DMAPI support. Here is the information that configure spits out:

Checking for DMAPI library existence
Checking for library dm                             : not found
Checking for dm_get_eventlist                       : not found
Checking for library jfsdm                          : not found
Checking for dm_get_eventlist                       : not found
Checking for library dmapi                          : not found
Checking for dm_get_eventlist                       : not found
Checking for library xdsm                           : not found
Checking for dm_get_eventlist                       : not found
Checking for header sys/dmi.h                       : no
Checking for header xfs/dmapi.h                     : no
Checking for header sys/jfsdmapi.h                  : no
Checking for header sys/dmapi.h                     : no
Checking for header dmapi.h                         : no
Checking whether DMAPI lib can be used              : not found

In Centos 5.x, the DMAPI libraries were available. But in Centos 6, XFS (where DMAPI is needed for, as they say) is built in. And so, these DMAPI libraries are not availabe anymore: not in the default repositories, not in any other repo that I know of.

Actually, I have three questions:

  1. Do I actually need DMAPI support in Samba, or is it only needed in very specific situations?
  2. Does the built-in XFS somehow provide support for DMAPI calls?
  3. If I need it, where can I get package(s) that contain the needed libraries.

To prevent the obvious question: I cannot use the default RPM's, because they are really stripped down and don't provide Active Directory support, for example.

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