Index: uim.c
===================================================================
--- uim.c	(revision 5477)
+++ uim.c	(working copy)
@@ -76,7 +76,7 @@
 void uim_anthy_utf8_plugin_instance_quit(void);
 #endif
 
-static uim_bool uim_initialized;
+static unsigned int uim_init_count;
 static uim_lisp protected0, protected1;
 
 
@@ -96,7 +96,8 @@
   int ret;
   char *sys_load_path;
 
-  if (uim_initialized)
+  uim_init_count++;
+  if (uim_init_count != 1)
     return OK;
 
   uim_init_error();
@@ -157,22 +158,21 @@
 
   uim_scm_require_file("init.scm");
 
-  uim_initialized = UIM_TRUE;
-
   return (void *)OK;
 }
 
 void
 uim_quit(void)
 {
-  if (!uim_initialized)
-    return;
-
   if (UIM_CATCH_ERROR_BEGIN()) {
-    /* Leave uim_initialized uncleared to keep libuim disabled. */
+    /* Leave uim_init_count untouched to keep libuim disabled. */
     return;
   }
 
+  uim_init_count--;
+  if (uim_init_count != 0)
+    return;
+
   uim_quit_plugin();
 #ifdef ENABLE_ANTHY_STATIC
   uim_anthy_plugin_instance_quit();
@@ -184,7 +184,6 @@
   uim_notify_quit();
 #endif
   uim_scm_quit();
-  uim_initialized = UIM_FALSE;
 }
 
 uim_context