Index: gnuradio-runtime/lib/thread/thread.cc
--- gnuradio-runtime/lib/thread/thread.cc.orig
+++ gnuradio-runtime/lib/thread/thread.cc
@@ -147,7 +147,7 @@ void set_thread_name(gr_thread_t thread, std::string n
 
 #elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__) ||     \
     defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__GNU__) || \
-    defined(__NetBSD__)
+    defined(__NetBSD__) || defined(__OpenBSD__)
 
 namespace gr {
 namespace thread {
@@ -219,7 +219,9 @@ void set_thread_name(gr_thread_t thread, std::string n
 #else
 
 #include <pthread.h>
+#ifndef __OpenBSD__
 #include <sys/prctl.h>
+#endif
 #include <sstream>
 #include <stdexcept>