Call XInitThreads.

diff --git a/retrace/glws_glx.cpp b/retrace/glws_glx.cpp
index b6175304d29dd1ff8557027a8dab800d4f3373e0..1494d060d7245cae687637db7c5452cc6a6c2f2b 100644 (file)
--- a/retrace/glws_glx.cpp
+++ b/retrace/glws_glx.cpp
@@ -238,6 +238,8 @@ public:
 
 void
 init(void) {
+    XInitThreads();
+
     display = XOpenDisplay(NULL);
     if (!display) {
         std::cerr << "error: unable to open display " << XDisplayName(NULL) << "\n";