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.

8 files changed, 22 insertions, 9 deletions

diff --git a/ChangeLog b/ChangeLog
index 4637ffb..fcd1cbd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2017-04-07  Zack Weinberg  <zackw@panix.com>
 
+	* 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.
+
 	* posix/bits/getopt_core.h, posix/bits/getopt_ext.h:
 	New files, intended to be shared with gnulib.
 	* posix/bits/getopt_posix.h:
diff --git a/posix/bits/getopt_core.h b/posix/bits/getopt_core.h
index 1e4dc25..1744c29 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 2382f88..c1a58da 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 9436bb9..f9f3265 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 6671787..543c8e7 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 2b63865..d9db3a6 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 b967d24..a1fab22 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 6a02954..9a18d5d 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