diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 309181c..e3ca329 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -133,6 +133,15 @@ project
          [ run single_instance_test.cpp single_instance_1.cpp single_instance_2.cpp
            :  :  : -<library>/boost/system//boost_system <define>BOOST_ERROR_CODE_HEADER_ONLY : single_instance_test_header
          ]
+         [ run before_main_test.cpp
+           :  :  : <link>static : before_main_test_static
+         ]
+         [ run before_main_test.cpp
+           :  :  : <link>shared : before_main_test_shared
+         ]
+         [ run before_main_test.cpp
+           :  :  : -<library>/boost/system//boost_system <define>BOOST_ERROR_CODE_HEADER_ONLY : before_main_test_header
+         ]
          ;
 
 # Quick (CI) test
diff --git a/test/before_main_test.cpp b/test/before_main_test.cpp
new file mode 100644
index 0000000..3b38abc
--- /dev/null
+++ b/test/before_main_test.cpp
@@ -0,0 +1,30 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cerrno>
+
+using namespace boost::system;
+
+static error_code e1( 1, system_category() );
+static std::string m1 = e1.message();
+
+static error_code e2( ENOENT, generic_category() );
+static std::string m2 = e2.message();
+
+int main()
+{
+    error_code e1_( 1, system_category() );
+
+    BOOST_TEST_EQ( e1, e1_ );
+    BOOST_TEST_EQ( m1, e1_.message() );
+
+    error_code e2_( ENOENT, generic_category() );
+
+    BOOST_TEST_EQ( e2, e2_ );
+    BOOST_TEST_EQ( m2, e2_.message() );
+
+    return boost::report_errors();
+}