[users] Fix test building

- now Config can create jobs, tests that consume Config need
  to build the jobs as well; re-jig CMakeLists to make
  those a little easier.

src/modules/users/CMakeLists.txt

@@ -18,17 +18,24 @@ endif()
 
 include_directories( ${PROJECT_BINARY_DIR}/src/libcalamaresui )
 
+set( JOB_SRC
+    CreateUserJob.cpp
+    SetPasswordJob.cpp
+    SetHostNameJob.cpp
+)
+set( CONFIG_SRC
+    CheckPWQuality.cpp
+    Config.cpp
+)
+
 calamares_add_plugin( users
     TYPE viewmodule
     EXPORT_MACRO PLUGINDLLEXPORT_PRO
     SOURCES
-        CreateUserJob.cpp
-        SetPasswordJob.cpp
         UsersViewStep.cpp
         UsersPage.cpp
-        SetHostNameJob.cpp
-        CheckPWQuality.cpp
-        Config.cpp
+        ${JOB_SRC}
+        ${CONFIG_SRC}
     UI
         page_usersetup.ui
     RESOURCES
@@ -63,15 +70,17 @@ calamares_add_test(
         TestSetHostNameJob.cpp
         SetHostNameJob.cpp
     LIBRARIES
-        Qt5::DBus
+        Qt5::DBus  # HostName job can use DBus to systemd
 )
 
 calamares_add_test(
     userstest
     SOURCES
         Tests.cpp
-        Config.cpp
-        CheckPWQuality.cpp
+        ${JOB_SRC}
+        ${CONFIG_SRC}
     LIBRARIES
         ${USER_EXTRA_LIB}
+        Qt5::DBus  # HostName job can use DBus to systemd
+        ${CRYPT_LIBRARIES}  # SetPassword job uses crypt()
 )