getopt: annotate files with relationship to gnulib.

As the final act in this patchset, adjust the "This file is part of
the GNU C Library" message at the top of each file to indicate which
files are synced with gnulib.

	* posix/bits/getopt_core.h, posix/bits/getopt_ext.h
	* posix/getopt.c, posix/getopt1.c, posix/getopt_int.h:
	Mention in top-of-file boilerplate that these files are shared
	with gnulib.
	* posix/getopt.h, posix/bits/getopt_posix.h:
	Mention in top-of-file boilerplate that these files are NOT shared
	with gnulib, unlike the rest of the getopt implementation.

7 files changed, 14 insertions, 9 deletions

diff --git a/posix/bits/getopt_core.h b/posix/bits/getopt_core.h
index 1e4dc25d77..1744c29b74 100644
--- a/posix/bits/getopt_core.h
+++ b/posix/bits/getopt_core.h
@@ -1,6 +1,7 @@
 /* Declarations for getopt (basic, portable features only).
    Copyright (C) 1989-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   This file is part of the GNU C Library and is also part of gnulib.
+   Patches to this file should be submitted to both projects.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/posix/bits/getopt_ext.h b/posix/bits/getopt_ext.h
index 2382f88fc1..c1a58da804 100644
--- a/posix/bits/getopt_ext.h
+++ b/posix/bits/getopt_ext.h
@@ -1,6 +1,7 @@
 /* Declarations for getopt (GNU extensions).
    Copyright (C) 1989-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   This file is part of the GNU C Library and is also part of gnulib.
+   Patches to this file should be submitted to both projects.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/posix/bits/getopt_posix.h b/posix/bits/getopt_posix.h
index 9436bb9202..f9f3265a20 100644
--- a/posix/bits/getopt_posix.h
+++ b/posix/bits/getopt_posix.h
@@ -1,6 +1,7 @@
 /* Declarations for getopt (POSIX compatibility shim).
    Copyright (C) 1989-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   Unlike the bulk of the getopt implementation, this file is NOT part
+   of gnulib.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/posix/getopt.c b/posix/getopt.c
index 6671787b6f..543c8e7284 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -1,9 +1,7 @@
 /* Getopt for GNU.
-   NOTE: getopt is part of the C library, so if you don't know what
-   "Keep this file name-space clean" means, talk to drepper@gnu.org
-   before changing it!
    Copyright (C) 1987-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   This file is part of the GNU C Library and is also part of gnulib.
+   Patches to this file should be submitted to both projects.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/posix/getopt.h b/posix/getopt.h
index 2b638658e3..d9db3a6b4c 100644
--- a/posix/getopt.h
+++ b/posix/getopt.h
@@ -1,6 +1,8 @@
 /* Declarations for getopt.
    Copyright (C) 1989-2017 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
+   Unlike the bulk of the getopt implementation, this file is NOT part
+   of gnulib; gnulib also has a getopt.h but it is different.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/posix/getopt1.c b/posix/getopt1.c
index b967d24f57..a1fab22817 100644
--- a/posix/getopt1.c
+++ b/posix/getopt1.c
@@ -1,6 +1,7 @@
 /* getopt_long and getopt_long_only entry points for GNU getopt.
    Copyright (C) 1987-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   This file is part of the GNU C Library and is also part of gnulib.
+   Patches to this file should be submitted to both projects.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/posix/getopt_int.h b/posix/getopt_int.h
index 6a029542ab..9a18d5d4e6 100644
--- a/posix/getopt_int.h
+++ b/posix/getopt_int.h
@@ -1,6 +1,7 @@
 /* Internal declarations for getopt.
    Copyright (C) 1989-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   This file is part of the GNU C Library and is also part of gnulib.
+   Patches to this file should be submitted to both projects.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public