diff -uNr djvulibre-3.5.27/libdjvu/GThreads.cpp djvulibre-3.5.27.mod/libdjvu/GThreads.cpp
--- djvulibre-3.5.27/libdjvu/GThreads.cpp	2015-02-08 19:30:52.000000000 +0000
+++ djvulibre-3.5.27.mod/libdjvu/GThreads.cpp	2020-11-05 20:29:41.941759223 +0000
@@ -447,7 +447,7 @@
 GThread::terminate()
 {
   if (xentry || xarg)
-    pthread_cancel(hthr);
+    pthread_exit(NULL);
 }
 
 int