os: Fix thread copy constructor.

diff --git a/common/os_thread.hpp b/common/os_thread.hpp
index 5e9577b56a29924b816abfc10fb16baf70a9bb14..9dc656eedce84798480de480b3fa1747e1da7c9b 100644 (file)
--- a/common/os_thread.hpp
+++ b/common/os_thread.hpp
@@ -301,7 +301,7 @@ namespace os {
         }
 
         inline
-        thread(thread &other) :
+        thread(const thread &other) :
             _native_handle(other._native_handle)
         {
         }