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-rw-r--r--e-util/e-module.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/e-util/e-module.c b/e-util/e-module.c
index b3e90aac72..46486080d6 100644
--- a/e-util/e-module.c
+++ b/e-util/e-module.c
@@ -139,6 +139,25 @@ module_load (GTypeModule *type_module)
priv->load (type_module);
+ /* XXX This is a Band-Aid for a design flaw in EExtension. If the
+ * "extensible_type" member of EExtensionClass is set to a GType
+ * that hasn't already been registered, then when the extension's
+ * module is unloaded the GType registration that was triggered
+ * by setting "extensible_type" will be invalidated and cause
+ * Evolution to malfunction when the module is loaded again.
+ *
+ * Extension modules get loaded and unloaded repeatedly by
+ * e_extensible_load_extensions(), which temporarily references
+ * all extension classes and picks out the ones it needs for a
+ * given EExtensible instance based on the "extensible_type"
+ * class member.
+ *
+ * Making the module resident prevents the aforementioned GType
+ * registration from being invalidated when the extension class
+ * is unreferenced.
+ */
+ g_module_make_resident (priv->module);
+
return TRUE;
fail: