--- ../libqalculate-1.0.0/libqalculate/util.cc	2017-07-16 12:48:15.000000000 +0200
+++ ./libqalculate/util.cc	2017-08-08 23:15:29.000000000 +0200
@@ -937,8 +937,8 @@
 }
 
 void Thread::enableAsynchronousCancel() {
-	pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
-	pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
+	//pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
+	//pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
 }
 
 void *Thread::doRun(void *data) {
@@ -960,7 +960,7 @@
 }
 
 bool Thread::cancel() {
-	int ret = pthread_cancel(m_thread);
+	int ret = pthread_kill(m_thread, 0);
 	running = (ret != 0);
 	return !running;
 }