From: "Mingde (Matthew) Zeng" <matthew...@gmail.com>

Fixes [YOCTO #13319]

Signed-off-by: Mingde (Matthew) Zeng <matthew...@gmail.com>
---
 COPYING                  | 340 +++++++++++++++++++++++++++++++++++++++
 src/base_client.c        |  12 +-
 src/base_client.h        |  12 +-
 src/client_common.c      |  12 +-
 src/client_common.h      |  12 +-
 src/composite-engine.c   |  12 +-
 src/composite-engine.h   |  12 +-
 src/desktop_client.c     |  12 +-
 src/desktop_client.h     |  12 +-
 src/dialog_client.c      |  12 +-
 src/dialog_client.h      |  12 +-
 src/dockbar_client.c     |  14 +-
 src/dockbar_client.h     |  12 +-
 src/ewmh.c               |  12 +-
 src/ewmh.h               |  12 +-
 src/keys.c               |  12 +-
 src/keys.h               |  12 +-
 src/list.c               |  12 +-
 src/list.h               |  12 +-
 src/main.c               |  10 +-
 src/main_client.c        |  10 +-
 src/main_client.h        |  12 +-
 src/matchbox-remote.c    |  12 +-
 src/mbtheme-standalone.c |  12 +-
 src/mbtheme-standalone.h |  12 +-
 src/mbtheme.c            |  12 +-
 src/mbtheme.h            |  12 +-
 src/misc.c               |  12 +-
 src/misc.h               |  12 +-
 src/select_client.c      |  14 +-
 src/select_client.h      |  12 +-
 src/session.c            |  12 +-
 src/session.h            |  12 +-
 src/stack.c              |  12 +-
 src/stack.h              |  12 +-
 src/structs.h            |  12 +-
 src/toolbar_client.c     |  12 +-
 src/toolbar_client.h     |  12 +-
 src/toolbar_client_alt.c |  12 +-
 src/wm.c                 |  12 +-
 src/wm.h                 |  12 +-
 src/xml.c                |  12 +-
 src/xml.h                |  12 +-
 43 files changed, 424 insertions(+), 420 deletions(-)
 create mode 100644 COPYING

diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..d60c31a
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,340 @@
+                   GNU GENERAL PUBLIC LICENSE
+                      Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                           Preamble
+
+  The licenses for most software are designed to take away your
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+Foundation's software and to any other program whose authors commit to
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+                   GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+
+           How to Apply These Terms to Your New Programs
+
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+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    This is free software, and you are welcome to redistribute it
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+
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+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
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+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/src/base_client.c b/src/base_client.c
index 07f8334..02569ec 100644
--- a/src/base_client.c
+++ b/src/base_client.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/base_client.h b/src/base_client.h
index 60e3f00..1aa40e8 100644
--- a/src/base_client.h
+++ b/src/base_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/client_common.c b/src/client_common.c
index 2b62024..f139f3d 100644
--- a/src/client_common.c
+++ b/src/client_common.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/client_common.h b/src/client_common.h
index dd4c1d3..fc0d70b 100644
--- a/src/client_common.h
+++ b/src/client_common.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/composite-engine.c b/src/composite-engine.c
index 96f850e..de2dad8 100644
--- a/src/composite-engine.c
+++ b/src/composite-engine.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/composite-engine.h b/src/composite-engine.h
index c0b1341..639810d 100644
--- a/src/composite-engine.h
+++ b/src/composite-engine.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/desktop_client.c b/src/desktop_client.c
index 984cab6..2f1ecef 100644
--- a/src/desktop_client.c
+++ b/src/desktop_client.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/desktop_client.h b/src/desktop_client.h
index 9cfe904..153b2fb 100644
--- a/src/desktop_client.h
+++ b/src/desktop_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/dialog_client.c b/src/dialog_client.c
index 399a364..da54710 100644
--- a/src/dialog_client.c
+++ b/src/dialog_client.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/dialog_client.h b/src/dialog_client.h
index ed2685f..7764e88 100644
--- a/src/dialog_client.h
+++ b/src/dialog_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/dockbar_client.c b/src/dockbar_client.c
index 836c003..8a929d4 100644
--- a/src/dockbar_client.c
+++ b/src/dockbar_client.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,19 +6,11 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
-/* 
+/*
  *  a Dockbar is a *Panel*.
  */
 
diff --git a/src/dockbar_client.h b/src/dockbar_client.h
index 7d805ee..1bc1034 100644
--- a/src/dockbar_client.h
+++ b/src/dockbar_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/ewmh.c b/src/ewmh.c
index afcabe7..dccac67 100644
--- a/src/ewmh.c
+++ b/src/ewmh.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/ewmh.h b/src/ewmh.h
index 3e54c07..c6220c2 100644
--- a/src/ewmh.h
+++ b/src/ewmh.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/keys.c b/src/keys.c
index bc83bd4..19ec286 100644
--- a/src/keys.c
+++ b/src/keys.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/keys.h b/src/keys.h
index 8450e82..865d673 100644
--- a/src/keys.h
+++ b/src/keys.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/list.c b/src/list.c
index 2f6251f..a39e8a5 100644
--- a/src/list.c
+++ b/src/list.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/list.h b/src/list.h
index 9cdf1f1..9971d99 100644
--- a/src/list.h
+++ b/src/list.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/main.c b/src/main.c
index c201bc4..4c37679 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/main_client.c b/src/main_client.c
index cafe5a0..9640940 100644
--- a/src/main_client.c
+++ b/src/main_client.c
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 #include "main_client.h"
diff --git a/src/main_client.h b/src/main_client.h
index 8f4decd..417354a 100644
--- a/src/main_client.h
+++ b/src/main_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/matchbox-remote.c b/src/matchbox-remote.c
index e6cc076..bcf2c36 100644
--- a/src/matchbox-remote.c
+++ b/src/matchbox-remote.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 #define _GNU_SOURCE
diff --git a/src/mbtheme-standalone.c b/src/mbtheme-standalone.c
index b754a14..0528074 100644
--- a/src/mbtheme-standalone.c
+++ b/src/mbtheme-standalone.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/mbtheme-standalone.h b/src/mbtheme-standalone.h
index 7aa595a..e4490af 100644
--- a/src/mbtheme-standalone.h
+++ b/src/mbtheme-standalone.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/mbtheme.c b/src/mbtheme.c
index 821195a..7f7527b 100644
--- a/src/mbtheme.c
+++ b/src/mbtheme.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/mbtheme.h b/src/mbtheme.h
index aa9a7c5..e23ed95 100644
--- a/src/mbtheme.h
+++ b/src/mbtheme.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/misc.c b/src/misc.c
index 792ec08..3c34727 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/misc.h b/src/misc.h
index 383a76a..3597844 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/select_client.c b/src/select_client.c
index 0a6c540..56d3712 100644
--- a/src/select_client.c
+++ b/src/select_client.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,19 +6,11 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
-/* 
+/*
  *  A 'select client' is the small titilebar task menu dropdown.
  */
 
diff --git a/src/select_client.h b/src/select_client.h
index e718cd4..eb04415 100644
--- a/src/select_client.h
+++ b/src/select_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/session.c b/src/session.c
index 8f08279..df06e72 100644
--- a/src/session.c
+++ b/src/session.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/session.h b/src/session.h
index b9fcf88..52d5829 100644
--- a/src/session.h
+++ b/src/session.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/stack.c b/src/stack.c
index c985fa2..62fc18b 100644
--- a/src/stack.c
+++ b/src/stack.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/stack.h b/src/stack.h
index 516fe00..c23cea6 100644
--- a/src/stack.h
+++ b/src/stack.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/structs.h b/src/structs.h
index 24985e7..dd9b0d0 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/toolbar_client.c b/src/toolbar_client.c
index 422791b..66af91d 100644
--- a/src/toolbar_client.c
+++ b/src/toolbar_client.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/toolbar_client.h b/src/toolbar_client.h
index 61c4281..57a4ce1 100644
--- a/src/toolbar_client.h
+++ b/src/toolbar_client.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/toolbar_client_alt.c b/src/toolbar_client_alt.c
index e7f6975..3a0c233 100644
--- a/src/toolbar_client_alt.c
+++ b/src/toolbar_client_alt.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/wm.c b/src/wm.c
index 0823fef..b1ce058 100644
--- a/src/wm.c
+++ b/src/wm.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/wm.h b/src/wm.h
index 52de97e..37f218c 100644
--- a/src/wm.h
+++ b/src/wm.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/xml.c b/src/xml.c
index 2a48f14..c7601bb 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
diff --git a/src/xml.h b/src/xml.h
index ac0ab63..f737bae 100644
--- a/src/xml.h
+++ b/src/xml.h
@@ -1,4 +1,4 @@
-/* 
+/*
  *  Matchbox Window Manager - A lightweight window manager not for the
  *                            desktop.
  *
@@ -6,15 +6,7 @@
  *
  *  Copyright (c) 2002, 2004 OpenedHand Ltd - http://o-hand.com
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  */
 
-- 
2.27.0

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