Set firewall_backend_priority whenever WITH_NWFILTER is set. And
similarly, print firewall backends on the same condition.

Otherwise a build with -Ddriver_network=disabled fails with:

    src/nwfilter/meson.build:51:43: ERROR: Unknown variable 
"firewall_backend_priority".

Signed-off-by: Marek Marczykowski-Górecki <[email protected]>
---
 meson.build | 52 ++++++++++++++++++++++++++--------------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/meson.build b/meson.build
index 927665b5fb..049d259555 100644
--- a/meson.build
+++ b/meson.build
@@ -1650,31 +1650,6 @@ endif
 
 if not get_option('driver_network').disabled() and conf.has('WITH_LIBVIRTD')
   conf.set('WITH_NETWORK', 1)
-
-  firewall_backend_priority = get_option('firewall_backend_priority')
-  if firewall_backend_priority.length() == 0
-      if host_machine.system() == 'linux'
-          firewall_backend_priority = ['nftables', 'iptables']
-      elif host_machine.system() == 'freebsd'
-          firewall_backend_priority = ['pf']
-      else
-          # No firewall impl on non-Linux so far, so force 'none'
-          # as placeholder
-          firewall_backend_priority = ['none']
-      endif
-  else
-      if host_machine.system() != 'linux'
-          error('firewall backend priority only supported on linux hosts')
-      endif
-  endif
-
-  backends = []
-  foreach backend: firewall_backend_priority
-      backend = 'VIR_FIREWALL_BACKEND_' + backend.to_upper()
-      backends += backend
-  endforeach
-
-  conf.set('FIREWALL_BACKENDS', ', '.join(backends))
 elif get_option('driver_network').enabled()
   error('libvirtd must be enabled to build the network driver')
 endif
@@ -2033,6 +2008,31 @@ endif
 # libvirt daemon is also being compiled
 if conf.has('WITH_LIBVIRTD') and host_machine.system() == 'linux'
   conf.set('WITH_NWFILTER', 1)
+
+  firewall_backend_priority = get_option('firewall_backend_priority')
+  if firewall_backend_priority.length() == 0
+      if host_machine.system() == 'linux'
+          firewall_backend_priority = ['nftables', 'iptables']
+      elif host_machine.system() == 'freebsd'
+          firewall_backend_priority = ['pf']
+      else
+          # No firewall impl on non-Linux so far, so force 'none'
+          # as placeholder
+          firewall_backend_priority = ['none']
+      endif
+  else
+      if host_machine.system() != 'linux'
+          error('firewall backend priority only supported on linux hosts')
+      endif
+  endif
+
+  backends = []
+  foreach backend: firewall_backend_priority
+      backend = 'VIR_FIREWALL_BACKEND_' + backend.to_upper()
+      backends += backend
+  endforeach
+
+  conf.set('FIREWALL_BACKENDS', ', '.join(backends))
 endif
 
 if not get_option('pm_utils').disabled()
@@ -2373,7 +2373,7 @@ misc_summary = {
   'virt-login-shell': conf.has('WITH_LOGIN_SHELL'),
   'Warning Flags': supported_cc_flags,
 }
-if conf.has('WITH_NETWORK')
+if conf.has('WITH_NWFILTER')
   misc_summary += {
     'firewall backends': firewall_backend_priority,
   }
-- 
2.54.0

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