From db36ca5cd527136243431baf26608729f0d8a219 Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Fri, 27 Jan 2017 16:20:04 +0100
Subject: [PATCH] Disable multi-threading in libjte of GNU xorriso if
 pthread_cancel() is missing

---
 xorriso/configure_ac.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/xorriso/configure_ac.txt b/xorriso/configure_ac.txt
index 6f7b7f21..8c65c28b 100644
--- a/xorriso/configure_ac.txt
+++ b/xorriso/configure_ac.txt
@@ -338,6 +338,17 @@ AC_ARG_ENABLE(jtethreads,
                , enable_jtethreads=yes) 
 if test x$LIBJTE_DEF = xyes
 then
+    if test "x$enable_jtethreads" = xyes; then
+        mem_LDFLAGs="$LDFLAGS"
+        LDFLAGS="$LDFLAGS $THREAD_LIBS"
+        AC_MSG_CHECKING([for pthread_cancel()]) 
+        AC_TRY_LINK([#include <pthread.h>],
+                    [pthread_cancel((pthread_t) NULL);],
+                    [],
+                    [enable_jtethreads=no])
+        AC_MSG_RESULT([$enable_jtethreads])
+        LDFLAGS="$mem_LDFLAGS"
+    fi
     if test "x$enable_jtethreads" = xyes; then
         AC_DEFINE([THREADED_CHECKSUMS], [])
         echo "enabled  multi-threading in libjte"