Давайте определимся с конкретной целью. От этого зависит возможное создание дополнительных подпакетов. На текущий момент я попытался решить аналогичную задачу для пакета samba-DC-libs. Я разделил его на два подпакета samba-DC-libs samba-DC-libs-common, но что-то пошло не так:

[sin@tor ~]$ girar-show 183912
2017-Jun-09 11:01:56 :: task #183912 for sisyphus resumed by sin:
#100 build 4.6.5-alt1%ubt from /people/sin/packages/samba.git
#200 build dc/4.6.5-alt1%ubt from /people/sin/packages/samba-DC.git
#300 build 2.4-alt19.zentyal23%ubt from /people/sin/packages/openchange.git
#400 build 3.2.9-alt2 from /people/sin/packages/sogo3.git
2017-Jun-09 11:01:56 :: waiting for a shared lock on sisyphus
2017-Jun-09 11:02:00 :: acquired a shared lock on sisyphus
2017-Jun-09 11:02:19 :: created build repo
2017-Jun-09 11:02:20 :: [i586] #100 samba.git 4.6.5-alt1%ubt: build start
2017-Jun-09 11:02:20 :: [x86_64] #100 samba.git 4.6.5-alt1%ubt: build start
2017-Jun-09 11:50:58 :: [x86_64] #100 samba.git 4.6.5-alt1%ubt: build OK
2017-Jun-09 11:50:58 :: [x86_64] #200 samba-DC.git dc/4.6.5-alt1%ubt: build start
2017-Jun-09 11:57:02 :: [i586] #100 samba.git 4.6.5-alt1%ubt: build OK
2017-Jun-09 11:57:02 :: [i586] #200 samba-DC.git dc/4.6.5-alt1%ubt: build start
2017-Jun-09 12:52:45 :: [x86_64] #200 samba-DC.git dc/4.6.5-alt1%ubt: build OK
2017-Jun-09 12:52:45 :: [x86_64] #300 openchange.git 2.4-alt19.zentyal23%ubt: build start
[...]                                                                                                                                                         
build/300/x86_64/log:lib.req: WARNING: /usr/lib64/samba-dc/libsamba-util.so.0()(64bit) is not yet set-versioned                                                                                                                                                               
2017-Jun-09 12:58:21 :: [x86_64] #300 openchange.git 2.4-alt19.zentyal23%ubt: build OK                                                                                                                                                                                        
2017-Jun-09 12:58:21 :: [x86_64] #400 sogo3.git 3.2.9-alt2: build start
warning: Macro %apache2_sites_available not found
warning: Macro %apache2_sites_available not found
warning: Macro %apache2_sites_enabled not found
warning: Macro %apache2_sites_enabled not found
warning: Macro %apache2_sites_available not found
warning: Macro %apache2_sites_enabled not found
Reading Package Lists...
Building Dependency Tree...
MI2a: mark gnustep-make-devel
MI2a:  target gnustep-make
[...]
MI2c:         mark python-tools-2to3
Starting
Starting 2
Selecting gcc5-objc for 'gcc-objc'
Selecting libsope-devel for 'sope-appserver-devel'
Selecting libsope-devel for 'sope-core-devel'
Selecting libsope-devel for 'sope-ldap-devel'
Selecting libsope-devel for 'sope-mime-devel'
Selecting libsope-devel for 'sope-xml-devel'
Selecting libsope-devel for 'sope-gdl1-devel'
Selecting libsope-devel for 'sope-sbjson-devel'
Selecting libobjc6-devel for 'libobjc-devel'
Investigating samba-DC-libs
Package samba-DC-libs has broken dep on samba-libs
  Considering samba-libs 2 as a solution to samba-DC-libs 10
  Re-Instated samba-libs
  Added samba-libs to the remove list
  Considering samba-libs 2 as a solution to samba-DC-libs 10
Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  samba-DC-libs: Conflicts: samba-libs
E: Broken packages
hsh-install: Failed to calculate package file list.
hsh-install: Failed to generate package file list.
2017-Jun-09 12:58:46 :: [x86_64] sogo3.git 3.2.9-alt2: remote: cannot build src.rpm
2017-Jun-09 12:58:46 :: [x86_64] #400 sogo3.git 3.2.9-alt2: build FAILED
2017-Jun-09 13:04:45 :: [i586] #200 samba-DC.git dc/4.6.5-alt1%ubt: build OK
2017-Jun-09 13:04:45 :: [i586] #300 openchange.git 2.4-alt19.zentyal23%ubt: build start
[...]
build/300/i586/log:lib.req: WARNING: /usr/lib/samba-dc/libsamba-util.so.0 is not yet set-versioned
2017-Jun-09 13:11:05 :: [i586] #300 openchange.git 2.4-alt19.zentyal23%ubt: build OK
2017-Jun-09 13:11:05 :: [i586] #400 sogo3.git 3.2.9-alt2: build start
warning: Macro %apache2_sites_available not found
warning: Macro %apache2_sites_available not found
warning: Macro %apache2_sites_enabled not found
warning: Macro %apache2_sites_enabled not found
warning: Macro %apache2_sites_available not found
warning: Macro %apache2_sites_enabled not found
Reading Package Lists...
Building Dependency Tree...
MI2a: mark gnustep-make-devel
MI2a:  target gnustep-make
[...]
MI2c:         mark python-tools-2to3
Starting
Starting 2
Selecting gcc5-objc for 'gcc-objc'
Selecting libsope-devel for 'sope-appserver-devel'
Selecting libsope-devel for 'sope-core-devel'
Selecting libsope-devel for 'sope-ldap-devel'
Selecting libsope-devel for 'sope-mime-devel'
Selecting libsope-devel for 'sope-xml-devel'
Selecting libsope-devel for 'sope-gdl1-devel'
Selecting libsope-devel for 'sope-sbjson-devel'
Selecting libobjc6-devel for 'libobjc-devel'
Investigating samba-DC-libs
Package samba-DC-libs has broken dep on samba-libs
  Considering samba-libs 2 as a solution to samba-DC-libs 10
  Re-Instated samba-libs
  Added samba-libs to the remove list
  Considering samba-libs 2 as a solution to samba-DC-libs 10
Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  samba-DC-libs: Conflicts: samba-libs
E: Broken packages
hsh-install: Failed to calculate package file list.
hsh-install: Failed to generate package file list.
2017-Jun-09 13:11:31 :: [i586] sogo3.git 3.2.9-alt2: remote: cannot build src.rpm
2017-Jun-09 13:11:31 :: [i586] #400 sogo3.git 3.2.9-alt2: build FAILED
2017-Jun-09 12:58:46 :: [x86_64] build FAILED
2017-Jun-09 13:11:31 :: [i586] build FAILED
2017-Jun-09 13:11:31 :: task #183912 for sisyphus FAILED