BUILD: enable USE_THREAD for OpenBSD build.

diff --git a/Makefile b/Makefile
index f066f3102a5540b951778fc62ca3cf4516b3caa5..c897c02548a3168a1d227bc2385130932ce76ce6 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -335,6 +335,7 @@ ifeq ($(TARGET),openbsd)
   USE_KQUEUE     = implicit
   USE_TPROXY     = implicit
   USE_ACCEPT4    = implicit
+  USE_THREAD     = implicit
 else
 ifeq ($(TARGET),netbsd)
   # This is for NetBSD