* exceptions.cc (sigdelayed): Move declaration to sigproc.h.

* sigproc.h (sigdelayed): Make symbol globally available.
* gendef (sigdelayed): Specifically zero incyg and stacklock.
* signal.cc (sigwaitinfo): Lock _my_tls and try harder to clean up signal
information.

winsup/cygwin/sigproc.h

@@ -86,6 +86,8 @@ void __stdcall sigalloc ();
 int kill_pgrp (pid_t, siginfo_t&);
 int killsys (pid_t, int);
 
+extern "C" void sigdelayed ();
+
 extern char myself_nowait_dummy[];
 
 extern struct sigaction *global_sigs;