When glib is built static, the threads and clock code are not
initialized since DllMain is never run. Instead, initialize them from
the glib constructor.

https://bugzilla.gnome.org/show_bug.cgi?id=678387

diff --git a/glib/glib/glib-init.c b/glib/glib/glib-init.c
index f4edd5c..3ec89a0 100644
--- a/glib/glib/glib-init.c
+++ b/glib/glib/glib-init.c
@@ -225,6 +225,10 @@ glib_init (void)
 
 HMODULE glib_dll;
 
+#endif
+
+#if defined (G_OS_WIN32) && !defined (GLIB_STATIC_COMPILATION)
+
 BOOL WINAPI
 DllMain (HINSTANCE hinstDLL,
          DWORD     fdwReason,
@@ -261,6 +265,10 @@ G_DEFINE_CONSTRUCTOR(glib_init_ctor)
 static void
 glib_init_ctor (void)
 {
+#ifdef G_OS_WIN32
+  g_clock_win32_init ();
+  g_thread_win32_init ();
+#endif
   glib_init ();
 }