* Makefile.in (dtable_CFLAGS): Use -fomit-frame-pointer and -fcheck-new.

* cygheap.cc (cmalloc): Only emit system_printf warnings on failure if
DEBUGGING.
(crealloc): Ditto.
(ccalloc): Ditto.
* dtable.cc (build_fh_name): Treat NULL return from cnew as indicative of
EMFILE condition.
(build_fh_dev): Ditto.
(dtable::dup_worker): Handle NULL return from build_fh_pc.
(dtable::vfork_child_dup): Trust dup_worker to set errno.
* fhandler.h (fhandler_base::new): Mark as nothrow.

winsup/cygwin/dcrt0.cc

@@ -725,6 +725,11 @@ dll_crt0_1 (char *)
 
   check_sanity_and_sync (user_data);
   malloc_init ();
+#ifdef CGF
+  int i = 0;
+  while (i)
+    cmalloc (HEAP_STR, 2000000);
+#endif
 
   /* Initialize SIGSEGV handling, etc. */
   init_exceptions (&cygwin_except_entry);