Remove ill-advised cygwin_props

Cygwin_props have been invented to allow switching off the unique
installation keys in the first place, supposedly for debugging.
This never really was a good idea, after all we *want* the installations
to be independent and there's no good reason to break that, not even
for debugging purposes.

Other than that, cygwin_props were meant to be used for some other global
settings which never took place.  There's just no good reason to tweak
the DLL binary invisibly where a setting could be done in a file or the
environment.

This patch removes the cygwin_props entirely, including the related
settings in cygcheck.

cygwin:
	* cygprops.h: Remove file.
	* globals.cc (cygwin_props): Remove.
	* cygheap.cc (init_cygheap::init_installation_root): Drop removing
	installation key.

utils:
	* cygcheck.cc: Drop including cygprops.h.  Remove now unused option
	values.
	(unique_object_name_opt): Remove.
	(handle_unique_object_name): Remove function.
	(usage): Remove text for unique-object-names options.
	(longopts): Remove unique-object-names options.
	(main): Drop handling unique-object-names options.

doc:
	* utils.xml (cygcheck): Remove text for unique-object-names options.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

1 files changed, 0 insertions, 21 deletions

diff --git a/winsup/cygwin/cygprops.h b/winsup/cygwin/cygprops.h
deleted file mode 100644
index 70ea3cc5a..000000000
--- a/winsup/cygwin/cygprops.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* cygprops.h: Cygwin DLL properties
-
-   Copyright 2009, 2012 Red Hat, Inc.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#pragma once
-/* DLL properties data. */
-struct cygwin_props_t
-{
-  char magic[68];
-  ULONG size;
-  ULONG disable_key;
-};
-
-#define CYGWIN_PROPS_MAGIC \
-  "Fortunately, I keep my feathers numbered for just such an emergency"