Fix build with glibmm 2.50 (r437481).

It is backported from the upstream commit:

https://git.gnome.org/browse/gnote/commit/?id=df504af

Approved by:	bapt

deskutils/gnote/files/patch-src_actionmanager.cpp

@@ -0,0 +1,23 @@
+--- src/actionmanager.cpp.orig	2015-11-28 15:45:18 UTC
++++ src/actionmanager.cpp
+@@ -177,17 +177,17 @@ namespace gnote {
+ 
+     int pos = 0;
+     Glib::RefPtr<Gio::Menu> section = make_app_menu_section(APP_ACTION_NEW);
+-    if(section != 0) {
++    if(section) {
+       menu->insert_section(pos++, section);
+     }
+ 
+     section = make_app_menu_section(APP_ACTION_MANAGE);
+-    if(section != 0) {
++    if(section) {
+       menu->insert_section(pos++, section);
+     }
+ 
+     section = make_app_menu_section(APP_ACTION_LAST);
+-    if(section != 0) {
++    if(section) {
+       menu->insert_section(pos++, section);
+     }
+ 

deskutils/gnote/files/patch-src_addins_exporttogtg_exporttogtgnoteaddin.cpp

@@ -0,0 +1,24 @@
+--- src/addins/exporttogtg/exporttogtgnoteaddin.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/addins/exporttogtg/exporttogtgnoteaddin.cpp
+@@ -79,10 +79,10 @@ void ExportToGTGNoteAddin::on_note_opene
+ void ExportToGTGNoteAddin::export_button_clicked()
+ {
+   try {
+-    if (s_gtg_interface == 0) {
++    if (!s_gtg_interface) {
+       Glib::RefPtr<Gio::DBus::NodeInfo> node_info = Gio::DBus::NodeInfo::create_for_xml(GTG_INTERFACE);
+       s_gtg_interface = node_info->lookup_interface("org.gnome.GTG");
+-      if(s_gtg_interface == 0) {
++      if(!s_gtg_interface) {
+         ERR_OUT(_("GTG XML loaded, but interface not found"));
+         return;
+       }
+@@ -96,7 +96,7 @@ void ExportToGTGNoteAddin::export_button
+   try {
+     Glib::RefPtr<Gio::DBus::Proxy> proxy = Gio::DBus::Proxy::create_for_bus_sync(
+         Gio::DBus::BUS_TYPE_SESSION, "org.gnome.GTG", "/org/gnome/GTG", "org.gnome.GTG", s_gtg_interface);
+-    if(proxy == 0) {
++    if(!proxy) {
+       ERR_OUT(_("Failed to create D-Bus proxy for GTG"));
+       return;
+     }

deskutils/gnote/files/patch-src_addins_printnotes_printnotesnoteaddin.cpp

@@ -0,0 +1,11 @@
+--- src/addins/printnotes/printnotesnoteaddin.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/addins/printnotes/printnotesnoteaddin.cpp
+@@ -277,7 +277,7 @@ namespace printnotes {
+     }
+ 
+     gnote::DepthNoteTag::Ptr depth = get_buffer()->find_depth_tag(p_start);
+-    if(depth != 0) {
++    if(depth) {
+         indentation += ((int) (dpiX / 3)) * depth->get_depth();
+     }
+     layout->set_width(pango_units_from_double((int)context->get_width() -

deskutils/gnote/files/patch-src_addins_statistics_statisticsapplicationaddin.cpp

@@ -0,0 +1,11 @@
+--- src/addins/statistics/statisticsapplicationaddin.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/addins/statistics/statisticsapplicationaddin.cpp
+@@ -44,7 +44,7 @@ void StatisticsApplicationAddin::initial
+ {
+   if(!m_initialized) {
+     m_initialized = true;
+-    if(m_action == 0) {
++    if(!m_action) {
+       m_action = Gtk::Action::create();
+       m_action->set_name("ShowStatistics");
+       m_action->set_label(_("Show Statistics"));

deskutils/gnote/files/patch-src_addins_todo_todonoteaddin.cpp

@@ -0,0 +1,11 @@
+--- src/addins/todo/todonoteaddin.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/addins/todo/todonoteaddin.cpp
+@@ -42,7 +42,7 @@ TodoModule::TodoModule()
+ void Todo::initialize()
+ {
+   FOREACH(const std::string & s, s_todo_patterns) {
+-    if(get_note()->get_tag_table()->lookup(s) == 0) {
++    if(!get_note()->get_tag_table()->lookup(s)) {
+       Glib::RefPtr<Gtk::TextTag> tag = Gtk::TextTag::create(s);
+       tag->property_foreground() = "#0080f0";
+       tag->property_weight() = PANGO_WEIGHT_BOLD;

deskutils/gnote/files/patch-src_dbus_searchprovider.cpp

@@ -0,0 +1,11 @@
+--- src/dbus/searchprovider.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/dbus/searchprovider.cpp
+@@ -228,7 +228,7 @@ Glib::VariantContainerBase SearchProvide
+ 
+ gchar *SearchProvider::get_icon()
+ {
+-  if(m_note_icon == 0) {
++  if(!m_note_icon) {
+     Gtk::IconInfo info = gnote::IconManager::obj().lookup_icon(gnote::IconManager::NOTE, 48);
+     m_note_icon = Gio::Icon::create(info.get_filename());
+   }

deskutils/gnote/files/patch-src_gnome-keyring_ring.cpp

@@ -1,10 +0,0 @@
---- src/gnome_keyring/ring.cpp.orig	2013-10-30 16:54:52.000000000 +0100
-+++ src/gnome_keyring/ring.cpp	2013-10-30 16:56:09.000000000 +0100
-@@ -20,6 +20,7 @@
- 
- 
- #include <cstring>
-+#include <cstdlib>
- 
- #include "keyringexception.hpp"
- #include "ring.hpp"

deskutils/gnote/files/patch-src_gnome__keyring_ring.cpp

@@ -0,0 +1,10 @@
+--- src/gnome_keyring/ring.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/gnome_keyring/ring.cpp
+@@ -20,6 +20,7 @@
+ 
+ 
+ #include <cstring>
++#include <cstdlib>
+ 
+ #include "keyringexception.hpp"
+ #include "ring.hpp"

deskutils/gnote/files/patch-src_note.hpp

@@ -0,0 +1,20 @@
+--- src/note.hpp.orig	2015-11-28 15:44:34 UTC
++++ src/note.hpp
+@@ -124,7 +124,7 @@ public:
+   const Glib::RefPtr<NoteTagTable> & get_tag_table();
+   bool has_buffer() const
+     {
+-      return m_buffer;
++      return (bool)m_buffer;
+     }
+   const Glib::RefPtr<NoteBuffer> & get_buffer();
+   bool has_window() const 
+@@ -139,7 +139,7 @@ public:
+   bool is_special() const;
+   bool is_loaded() const
+     {
+-      return (m_buffer);
++      return (bool)m_buffer;
+     }
+   bool is_opened() const
+     { 

deskutils/gnote/files/patch-src_notebuffer.cpp

@@ -0,0 +1,29 @@
+--- src/notebuffer.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/notebuffer.cpp
+@@ -248,7 +248,7 @@ namespace gnote {
+ 
+     Glib::RefPtr<Gtk::TextTag> depth = find_depth_tag(iter);
+ 
+-    return depth;
++    return (bool)depth;
+   }
+ 
+ 
+@@ -1341,7 +1341,7 @@ namespace gnote {
+       if (iter.get_line() < buffer->get_line_count() - 1) {
+         Gtk::TextIter next_line = buffer->get_iter_at_line(iter.get_line()+1);
+         next_line_has_depth =
+-          NoteBuffer::Ptr::cast_static(buffer)->find_depth_tag (next_line);
++          (bool)NoteBuffer::Ptr::cast_static(buffer)->find_depth_tag (next_line);
+       }
+ 
+       bool at_empty_line = iter.ends_line () && iter.starts_line ();
+@@ -1576,7 +1576,7 @@ namespace gnote {
+               NoteBuffer::Ptr note_buffer = NoteBuffer::Ptr::cast_dynamic(buffer);
+               // Do not insert bullet if it's already there
+               // this happens when using double identation in bullet list
+-              if(note_buffer->find_depth_tag(apply_start) == 0) {
++              if(!note_buffer->find_depth_tag(apply_start)) {
+                 note_buffer->insert_bullet (apply_start, depth_tag->get_depth(), depth_tag->get_direction());
+                 buffer->remove_all_tags (apply_start, apply_start);
+                 offset += 2;

deskutils/gnote/files/patch-src_notetag.cpp

@@ -0,0 +1,11 @@
+--- src/notetag.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/notetag.cpp
+@@ -523,7 +523,7 @@ namespace gnote {
+ 
+   bool NoteTagTable::tag_has_depth(const Glib::RefPtr<Gtk::TextBuffer::Tag> & tag)
+   {
+-    return DepthNoteTag::Ptr::cast_dynamic(tag);
++    return (bool)DepthNoteTag::Ptr::cast_dynamic(tag);
+   }
+ 
+ 

deskutils/gnote/files/patch-src_notewindow.cpp

@@ -0,0 +1,29 @@
+--- src/notewindow.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/notewindow.cpp
+@@ -186,7 +186,7 @@ namespace gnote {
+       return;
+     }
+     remove_accel_group(*parent);
+-    if(parent->get_window() != 0
++    if(parent->get_window()
+        && (parent->get_window()->get_state() & Gdk::WINDOW_STATE_MAXIMIZED) == 0) {
+       int cur_width, cur_height;
+       parent->get_size(cur_width, cur_height);
+@@ -316,7 +316,7 @@ namespace gnote {
+     }
+     m_widget_actions[order] = action;
+     m_signal_actions_changed();
+-    if(Glib::RefPtr<NonModifyingNoteAction>::cast_dynamic(action) == 0) {
++    if(!Glib::RefPtr<NonModifyingNoteAction>::cast_dynamic(action)) {
+       action->set_sensitive(m_enabled);
+     }
+   }
+@@ -619,7 +619,7 @@ namespace gnote {
+       m_global_keys->enabled(m_enabled);
+     FOREACH(const Glib::RefPtr<Gtk::Action> & action, get_widget_actions()) {
+       // A list includes empty actions to mark separators, non-modifying actions are always enabled
+-      if(action != 0 && Glib::RefPtr<NonModifyingNoteAction>::cast_dynamic(action) == 0) {
++      if(action && !Glib::RefPtr<NonModifyingNoteAction>::cast_dynamic(action)) {
+         action->set_sensitive(enable);
+       }
+     }

deskutils/gnote/files/patch-src_remotecontrolproxy.cpp

@@ -0,0 +1,11 @@
+--- src/remotecontrolproxy.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/remotecontrolproxy.cpp
+@@ -35,7 +35,7 @@ namespace {
+   void load_interface_from_file(const char *filename, const char *interface_name,
+                                 Glib::RefPtr<Gio::DBus::InterfaceInfo> & interface)
+   {
+-    if(interface != 0) {
++    if(interface) {
+       return;
+     }
+     std::ifstream fin(filename);

deskutils/gnote/files/patch-src_searchnoteswidget.cpp

@@ -0,0 +1,11 @@
+--- src/searchnoteswidget.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/searchnoteswidget.cpp
+@@ -1520,7 +1520,7 @@ void SearchNotesWidget::parse_sorting_se
+ void SearchNotesWidget::on_rename_notebook()
+ {
+   Glib::RefPtr<Gtk::TreeSelection> selection = m_notebooksTree->get_selection();
+-  if(selection == 0) {
++  if(!selection) {
+     return;
+   }
+   std::vector<Gtk::TreeModel::Path> selected_row = selection->get_selected_rows();

deskutils/gnote/files/patch-src_synchronization_gnotesyncclient.cpp

@@ -0,0 +1,11 @@
+--- src/synchronization/gnotesyncclient.cpp.orig	2015-11-28 15:44:34 UTC
++++ src/synchronization/gnotesyncclient.cpp
+@@ -54,7 +54,7 @@ namespace sync {
+   {
+     m_local_manifest_file_path = Glib::build_filename(IGnote::conf_dir(), LOCAL_MANIFEST_FILE_NAME);
+     Glib::RefPtr<Gio::File> manifest = Gio::File::create_for_path(m_local_manifest_file_path);
+-    if(manifest != 0) {
++    if(manifest) {
+       m_file_watcher = manifest->monitor_file();
+       m_file_watcher->signal_changed()
+         .connect(sigc::mem_fun(*this, &GnoteSyncClient::on_changed));