From 783a71be49b32b2c0d92509579f425cdbf5208ac Mon Sep 17 00:00:00 2001
From: Mart Raudsepp <leio@gentoo.org>
Date: Sun, 12 Jul 2020 12:27:59 +0300
Subject: [PATCH 2/5] build: Make kerberos optional

---
 meson.build                             | 5 +++++
 meson_options.txt                       | 1 +
 panels/user-accounts/cc-realm-manager.c | 9 +++++++++
 panels/user-accounts/meson.build        | 4 ----
 4 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/meson.build b/meson.build
index 4470376db..acf68a1da 100644
--- a/meson.build
+++ b/meson.build
@@ -262,6 +262,11 @@ config_h.set('HAVE_WACOM', enable_wacom,
 config_h.set('BUILD_THUNDERBOLT', host_is_linux_not_s390,
              description: 'Define to 1 to build the Thunderbolt panel')
 
+# Kerberos support
+krb_dep = dependency('krb5', required: get_option('kerberos'))
+config_h.set('HAVE_KERBEROS', krb_dep.found(),
+             description: 'Define to 1 if kerberos support is available')
+
 gnome = import('gnome')
 i18n = import('i18n')
 pkg = import('pkgconfig')
diff --git a/meson_options.txt b/meson_options.txt
index 2b3da02c0..5c558557d 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -2,6 +2,7 @@ option('bluetooth', type: 'boolean', value: true, description: 'build with Bluet
 option('cheese', type: 'boolean', value: true, description: 'build with cheese webcam support')
 option('documentation', type: 'boolean', value: false, description: 'build documentation')
 option('ibus', type: 'boolean', value: true, description: 'build with IBus support')
+option('kerberos', type: 'feature', value: 'auto', description: 'build with kerberos support')
 option('network_manager', type: 'boolean', value: true, description: 'build with NetworkManager support')
 option('privileged_group', type: 'string', value: 'wheel', description: 'name of group that has elevated permissions')
 option('snap', type: 'boolean', value: false, description: 'build with Snap support')
diff --git a/panels/user-accounts/cc-realm-manager.c b/panels/user-accounts/cc-realm-manager.c
index bc43e6d0f..cd1cb025d 100644
--- a/panels/user-accounts/cc-realm-manager.c
+++ b/panels/user-accounts/cc-realm-manager.c
@@ -22,7 +22,9 @@
 
 #include "cc-realm-manager.h"
 
+#ifdef HAVE_KERBEROS
 #include <krb5/krb5.h>
+#endif
 
 #include <glib.h>
 #include <glib/gi18n.h>
@@ -596,6 +598,7 @@ login_closure_free (gpointer data)
         g_slice_free (LoginClosure, login);
 }
 
+#ifdef HAVE_KERBEROS
 static krb5_error_code
 login_perform_kinit (krb5_context k5,
                      const gchar *realm,
@@ -657,6 +660,7 @@ login_perform_kinit (krb5_context k5,
 
         return code;
 }
+#endif
 
 static void
 kinit_thread_func (GTask *t,
@@ -665,6 +669,7 @@ kinit_thread_func (GTask *t,
                    GCancellable *cancellable)
 {
         g_autoptr(GTask) task = t;
+#ifdef HAVE_KERBEROS
         LoginClosure *login = task_data;
         krb5_context k5 = NULL;
         krb5_error_code code;
@@ -740,6 +745,10 @@ kinit_thread_func (GTask *t,
 
         if (k5)
                 krb5_free_context (k5);
+#else
+        g_task_return_new_error (task, CC_REALM_ERROR, CC_REALM_ERROR_GENERIC,
+                                 _("gnome-control-center was built without kerberos support"));
+#endif
 }
 
 void
diff --git a/panels/user-accounts/meson.build b/panels/user-accounts/meson.build
index b8ee9d98e..4375d3816 100644
--- a/panels/user-accounts/meson.build
+++ b/panels/user-accounts/meson.build
@@ -169,10 +169,6 @@ sources += gnome.mkenums_simple(
   'cc-user-accounts-enum-types',
   sources: files(enum_headers))
 
-# Kerberos support
-krb_dep = dependency('krb5', required: false)
-assert(krb_dep.found(), 'kerberos libraries not found in your path')
-
 deps = common_deps + [
   accounts_dep,
   gdk_pixbuf_dep,
-- 
2.26.3