Fix build on some Vala compiler versions

See https://gitlab.gnome.org/GNOME/vala/-/issues/1474 and https://gitlab.gnome.org/GNOME/vala/-/issues/1478

libdino/CMakeLists.txt

@@ -6,6 +6,11 @@ find_packages(LIBDINO_PACKAGES REQUIRED
     GObject
 )
 
+set(LIBDINO_DEFINITIONS)
+if(LIBDINO_VERSION VERSION_EQUAL "0.56.11")
+    set(LIBDINO_DEFINITIONS ${LIBDINO_DEFINITIONS} VALA_0_56_11)
+endif()
+
 vala_precompile(LIBDINO_VALA_C
 SOURCES
     src/application.vala
@@ -76,6 +81,8 @@ GENERATE_VAPI
     dino
 GENERATE_HEADER
     dino
+DEFINITIONS
+    ${LIBDINO_DEFINITIONS}
 )
 
 add_custom_command(OUTPUT "${CMAKE_BINARY_DIR}/exports/dino_i18n.h"

libdino/src/service/stream_interactor.vala

@@ -89,7 +89,12 @@ public class ModuleIdentity<T> : Object {
     }
 
     public T? cast(StreamInteractionModule module) {
+#if VALA_0_56_11
+        // We can't typecheck due to compiler bug
+        return (T) module;
+#else
         return module.get_type().is_a(typeof(T)) ? (T?) module : null;
+#endif
     }
 
     public bool matches(StreamInteractionModule module) {

main/CMakeLists.txt

@@ -111,9 +111,24 @@ endif()
 if(GTK4_VERSION VERSION_GREATER_EQUAL "4.8")
     set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} GTK_4_8)
 endif()
+if(GTK4_VERSION VERSION_GREATER_EQUAL "4.12")
+    set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} GTK_4_12)
+endif()
 if(Adwaita_VERSION VERSION_GREATER_EQUAL "1.2")
     set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} Adw_1_2)
 endif()
+if(VALA_VERSION VERSION_GREATER_EQUAL "0.56.5" AND VALA_VERSION VERSION_LESS "0.58")
+    set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} VALA_0_56_GREATER_5)
+endif()
+if(VALA_VERSION VERSION_GREATER_EQUAL "0.56.11" AND VALA_VERSION VERSION_LESS "0.58")
+    set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} VALA_0_56_GREATER_11)
+endif()
+if(VALA_VERSION VERSION_EQUAL "0.56.11")
+    set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} VALA_0_56_11)
+endif()
+if(VALA_VERSION VERSION_EQUAL "0.56.12")
+    set(MAIN_DEFINITIONS ${MAIN_DEFINITIONS} VALA_0_56_12)
+endif()
 
 vala_precompile(MAIN_VALA_C
 SOURCES

main/src/ui/util/helper.vala

@@ -103,7 +103,13 @@ private const string force_color_css = "%s { color: %s; }";
 public static Gtk.CssProvider force_css(Gtk.Widget widget, string css) {
     var p = new Gtk.CssProvider();
     try {
+#if GTK_4_12 && (VALA_0_56_GREATER_11 || VALA_0_58)
+        p.load_from_string(css);
+#elif (VALA_0_56_11 || VALA_0_56_12)
+        p.load_from_data(css, css.length);
+#else
         p.load_from_data(css.data);
+#endif
         widget.get_style_context().add_provider(p, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
     } catch (GLib.Error err) {
         // handle err

main/src/ui/widgets/avatar_picture.vala

@@ -454,7 +454,7 @@ public class Dino.Ui.AvatarPicture : Gtk.Widget {
             label.insert_after(this, null);
             label.attributes = new Pango.AttrList();
             label.attributes.insert(Pango.attr_foreground_new(uint16.MAX, uint16.MAX, uint16.MAX));
-#if GTK_4_8 && VALA_0_58
+#if GTK_4_8 && (VALA_0_56_GREATER_5 || VALA_0_58)
             picture.content_fit = Gtk.ContentFit.COVER;
 #elif GTK_4_8
             picture.@set("content-fit", 2);

main/src/ui/widgets/fixed_ratio_picture.vala

@@ -8,7 +8,7 @@ class Dino.Ui.FixedRatioPicture : Gtk.Widget {
     public int max_height { get; set; default = int.MAX; }
     public File file { get { return inner.file; } set { inner.file = value; } }
     public Gdk.Paintable paintable { get { return inner.paintable; } set { inner.paintable = value; } }
-#if GTK_4_8 && VALA_0_58
+#if GTK_4_8 && (VALA_0_56_GREATER_5 || VALA_0_58)
     public Gtk.ContentFit content_fit { get { return inner.content_fit; } set { inner.content_fit = value; } }
 #endif
     private Gtk.Picture inner = new Gtk.Picture();

xmpp-vala/CMakeLists.txt

@@ -9,6 +9,11 @@ find_packages(ENGINE_PACKAGES REQUIRED
 
 set(ENGINE_EXTRA_OPTIONS ${MAIN_EXTRA_OPTIONS} --vapidir=${CMAKE_CURRENT_SOURCE_DIR}/vapi)
 
+set(ENGINE_DEFINITIONS)
+if(VALA_VERSION VERSION_EQUAL "0.56.11")
+    set(ENGINE_DEFINITIONS ${ENGINE_DEFINITIONS} VALA_0_56_11)
+endif()
+
 vala_precompile(ENGINE_VALA_C
 SOURCES
     "src/core/direct_tls_xmpp_stream.vala"
@@ -152,6 +157,8 @@ CUSTOM_VAPIS
     "${CMAKE_CURRENT_SOURCE_DIR}/src/glib_fixes.vapi"
 OPTIONS
     ${ENGINE_EXTRA_OPTIONS}
+DEFINITIONS
+    ${ENGINE_DEFINITIONS}
 )
 
 add_custom_target(xmpp-vala-vapi

xmpp-vala/src/core/module_flag.vala

@@ -10,7 +10,12 @@ namespace Xmpp {
         }
 
         public T? cast(XmppStreamFlag flag) {
+#if VALA_0_56_11
+        // We can't typecheck due to compiler bug
+        return (T) module;
+#else
             return flag.get_type().is_a(typeof(T)) ? (T?) flag : null;
+#endif
         }
 
         public bool matches(XmppStreamFlag module) {
@@ -34,7 +39,12 @@ namespace Xmpp {
         }
 
         public T? cast(XmppStreamModule module) {
+#if VALA_0_56_11
+        // We can't typecheck due to compiler bug
+        return (T) module;
+#else
             return module.get_type().is_a(typeof(T)) ? (T?) module : null;
+#endif
         }
 
         public bool matches(XmppStreamModule module) {