* fork.cc (fork): Set sigframe here, since it can pause for a considerable

amount of time.
* environ.cc (_addenv): Add debugging.
* fhandler.cc: Eliminate unneeded include.
* smallprint.c: Ditto.

winsup/cygwin/fork.cc

@@ -580,6 +580,7 @@ fork ()
   } grouped;
 
   MALLOC_CHECK;
+  sigframe thisframe (mainthread);
 
   debug_printf ("entering");
   grouped.hParent = grouped.first_dll = NULL;