* dcrt0.cc (dll_crt0_1): Initialize mainthread stuff here before anything needs

it.
* sigproc.cc (sigproc_init): Move mainthread initialization out of here.
* sigproc.h (sigthread): Add init() method.
(sigframe): Don't try to initialize muto.
* sync.cc: Undef WaitForSingleObject to avoid recursion.

winsup/cygwin/sync.cc

@@ -23,6 +23,8 @@ details. */
 
 muto NO_COPY muto_start;
 
+#undef WaitForSingleObject
+
 /* Constructor */
 muto::muto (int inh, const char *s) : sync (0), visits(0), waiters(-1), tid (0), next (NULL)
 {