Adopt REUSE machine-readable licensing standard

60 files changed, 1377 insertions, 768 deletions

diff --git a/.clang-format b/.clang-format
index 8ef8bd6..9688e2f 100644
--- a/.clang-format
+++ b/.clang-format
@@ -1,3 +1,6 @@
+# Copyright 2020-2021 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: CC0-1.0 OR GPL-3.0-or-later
+
 ---
 AlignConsecutiveAssignments: true
 AlignConsecutiveDeclarations: true
diff --git a/.clang-tidy b/.clang-tidy
index dfe31a7..1e0353f 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,3 +1,6 @@
+# Copyright 2020-2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: CC0-1.0 OR GPL-3.0-or-later
+
 Checks: >
   *,
   -*-c-arrays,
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 0000000..7749513
--- /dev/null
+++ b/.reuse/dep5
@@ -0,0 +1,32 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: patchage
+Upstream-Contact: David Robillard <d@drobilla.net>
+Source: https://gitlab.com/drobilla/patchage
+
+Files: .clant.json .includes.imp INSTALL.md NEWS meson_options.txt
+Copyright: 2020-2021 David Robillard <d@drobilla.net>
+License: CC0-1.0 OR GPL-3.0-or-later
+
+Files: AUTHORS README.md patchage.desktop.in
+Copyright: 2006-2014 David Robillard <d@drobilla.net>
+License: CC0-1.0 OR GPL-3.0-or-later
+
+Files: src/patchage.gladep src/patchage.ui.in
+Copyright: 2006-2014 David Robillard <d@drobilla.net>
+License: GPL-3.0-or-later
+
+Files: osx/Info.plist.in osx/gtkrc osx/loaders.cache osx/pango.modules osx/pangorc
+Copyright: 2011-2017 David Robillard <d@drobilla.net>
+License: CC0-1.0 OR GPL-3.0-or-later
+
+Files: osx/Patchage.icns
+Copyright: 2011 David Robillard <d@drobilla.net>
+License: CC-BY-SA-4.0 OR GPL-3.0-or-later
+
+Files: doc/patchage.1
+Copyright: 2010-2020 David Robillard <d@drobilla.net>
+License: CC-BY-SA-4.0 OR GPL-3.0-or-later
+
+Files: icons/*.png icons/*.svg
+Copyright: 2007-2011 David Robillard <d@drobilla.net>
+License: CC-BY-SA-4.0 OR GPL-3.0-or-later
diff --git a/LICENSES/CC-BY-SA-4.0.txt b/LICENSES/CC-BY-SA-4.0.txt
new file mode 100644
index 0000000..1912a89
--- /dev/null
+++ b/LICENSES/CC-BY-SA-4.0.txt
@@ -0,0 +1,425 @@
+Creative Commons Attribution-ShareAlike 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice.  Distribution of
+Creative Commons public licenses does not create a lawyer-client or
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+Using Creative Commons Public Licenses
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+Creative Commons public licenses provide a standard set of terms and
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+original works of authorship and other material subject to copyright
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+following considerations are for informational purposes only, are not
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+
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+
+     Considerations for the public: By using one of our public
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+     wiki.creativecommons.org/Considerations_for_licensees
+
+=======================================================================
+
+Creative Commons Attribution-ShareAlike 4.0 International Public
+License
+
+By exercising the Licensed Rights (defined below), You accept and agree
+to be bound by the terms and conditions of this Creative Commons
+Attribution-ShareAlike 4.0 International Public License ("Public
+License").  To the extent this Public License may be interpreted as a
+contract, You are granted the Licensed Rights in consideration of Your
+acceptance of these terms and conditions, and the Licensor grants You
+such rights in consideration of benefits the Licensor receives from
+making the Licensed Material available under these terms and
+conditions.
+
+
+Section 1 -- Definitions.
+
+  a. Adapted Material means material subject to Copyright and Similar
+     Rights that is derived from or based upon the Licensed Material
+     and in which the Licensed Material is translated, altered,
+     arranged, transformed, or otherwise modified in a manner requiring
+     permission under the Copyright and Similar Rights held by the
+     Licensor.  For purposes of this Public License, where the Licensed
+     Material is a musical work, performance, or sound recording,
+     Adapted Material is always produced where the Licensed Material is
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+
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+
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+
+  e. Effective Technological Measures means those measures that, in the
+     absence of proper authority, may not be circumvented under laws
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+  f. Exceptions and Limitations means fair use, fair dealing, and/or
+     any other exception or limitation to Copyright and Similar Rights
+     that applies to Your use of the Licensed Material.
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+  g. License Elements means the license attributes listed in the name
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+
+  i. Licensed Rights means the rights granted to You subject to the
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+
+  j. Licensor means the individual(s) or entity(ies) granting rights
+     under this Public License.
+
+  k. Share means to provide material to the public by any means or
+     process that requires permission under the Licensed Rights, such
+     as reproduction, public display, public performance, distribution,
+     dissemination, communication, or importation, and to make material
+     available to the public including in ways that members of the
+     public may access the material from a place and at a time
+     individually chosen by them.
+
+  l. Sui Generis Database Rights means rights other than copyright
+     resulting from Directive 96/9/EC of the European Parliament and of
+     the Council of 11 March 1996 on the legal protection of databases,
+     as amended and/or succeeded, as well as other essentially
+     equivalent rights anywhere in the world.
+
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+
+
+Section 2 -- Scope.
+
+  a. License grant.
+
+       1. Subject to the terms and conditions of this Public License,
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+          exercise the Licensed Rights in the Licensed Material to:
+
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+               in part; and
+
+            b. produce, reproduce, and Share Adapted Material.
+
+       2. Exceptions and Limitations.  For the avoidance of doubt,
+          where Exceptions and Limitations apply to Your use, this
+          Public License does not apply, and You do not need to comply
+          with its terms and conditions.
+
+       3. Term.  The term of this Public License is specified in
+          Section 6(a).
+
+       4. Media and formats; technical modifications allowed.  The
+          Licensor authorizes You to exercise the Licensed Rights in
+          all media and formats whether now known or hereafter created,
+          and to make technical modifications necessary to do so.  The
+          Licensor waives and/or agrees not to assert any right or
+          authority to forbid You from making technical modifications
+          necessary to exercise the Licensed Rights, including
+          technical modifications necessary to circumvent Effective
+          Technological Measures.  For purposes of this Public License,
+          simply making modifications authorized by this Section 2(a)
+          (4) never produces Adapted Material.
+
+       5. Downstream recipients.
+
+            a. Offer from the Licensor -- Licensed Material.  Every
+               recipient of the Licensed Material automatically
+               receives an offer from the Licensor to exercise the
+               Licensed Rights under the terms and conditions of this
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+
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+               Every recipient of Adapted Material from You
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+               exercise the Licensed Rights in the Adapted Material
+               under the conditions of the Adapter's License You apply.
+
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+               any additional or different terms or conditions on, or
+               apply any Effective Technological Measures to, the
+               Licensed Material if doing so restricts exercise of the
+               Licensed Rights by any recipient of the Licensed
+               Material.
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+          or may be construed as permission to assert or imply that You
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+Section 3 -- License Conditions.
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+Your exercise of the Licensed Rights is expressly made subject to the
+following conditions.
+
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+
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+
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+
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+
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+
+            c. indicate the Licensed Material is licensed under this
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+               hyperlink to, this Public License.
+
+       2. You may satisfy the conditions in Section 3(a)(1) in any
+          reasonable manner based on the medium, means, and context in
+          which You Share the Licensed Material.  For example, it may
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+          information.
+
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+          information required by Section 3(a)(1)(A) to the extent
+          reasonably practicable.
+
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+
+     In addition to the conditions in Section 3(a), if You Share
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+
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+          license with the same License Elements, this version or
+          later, or a BY-SA Compatible License.
+
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+          Adapter's License You apply.  You may satisfy this condition
+          in any reasonable manner based on the medium, means, and
+          context in which You Share Adapted Material.
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+          or conditions on, or apply any Effective Technological
+          Measures to, Adapted Material that restrict exercise of the
+          rights granted under the Adapter's License You apply.
+
+
+Section 4 -- Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that
+apply to Your use of the Licensed Material:
+
+  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
+     to extract, reuse, reproduce, and Share all or a substantial
+     portion of the contents of the database;
+
+  b. if You include all or a substantial portion of the database
+     contents in a database in which You have Sui Generis Database
+     Rights, then the database in which You have Sui Generis Database
+     Rights (but not its individual contents) is Adapted Material,
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+
+  c. You must comply with the conditions in Section 3(a) if You Share
+     all or a substantial portion of the contents of the database.
+
+For the avoidance of doubt, this Section 4 supplements and does not
+replace Your obligations under this Public License where the Licensed
+Rights include other Copyright and Similar Rights.
+
+
+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
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+
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+
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+
+
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+
+Section 8 -- Interpretation.
+
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+
+
+=======================================================================
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diff --git a/LICENSES/CC0-1.0.txt b/LICENSES/CC0-1.0.txt
new file mode 100644
index 0000000..0e259d4
--- /dev/null
+++ b/LICENSES/CC0-1.0.txt
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
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diff --git a/LICENSES/GPL-3.0-or-later.txt b/LICENSES/GPL-3.0-or-later.txt
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSES/GPL-3.0-or-later.txt
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    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 3 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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into 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 Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/meson.build b/meson.build
index 08a71dc..862bc09 100644
--- a/meson.build
+++ b/meson.build
@@ -247,6 +247,17 @@ if not get_option('tests').disabled() and not meson.is_subproject()
       suite: 'data',
     )
   endif
+
+  # Check licensing metadata
+  reuse = find_program('reuse', required: false)
+  if reuse.found()
+    test(
+      'REUSE',
+      reuse,
+      args: ['--root', patchage_src_root, 'lint'],
+      suite: 'data',
+    )
+  endif
 endif
 
 if not meson.is_subproject()
diff --git a/osx/bundleify.sh b/osx/bundleify.sh
index 55ff57d..786eb48 100755
--- a/osx/bundleify.sh
+++ b/osx/bundleify.sh
@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# Copyright 2011-2017 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: CC0-1.0 OR GPL-3.0-or-later
+
 if [ "$#" != 3 ]; then
 	echo "USAGE: $0 LIB_PREFIX BUNDLE EXE";
 	exit 1;
diff --git a/src/Action.hpp b/src/Action.hpp
index 0a13216..688a73c 100644
--- a/src/Action.hpp
+++ b/src/Action.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_ACTION_HPP
 #define PATCHAGE_ACTION_HPP
diff --git a/src/ActionSink.hpp b/src/ActionSink.hpp
index c0d92ec..7e023f8 100644
--- a/src/ActionSink.hpp
+++ b/src/ActionSink.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_ACTION_SINK_HPP
 #define PATCHAGE_ACTION_SINK_HPP
diff --git a/src/AlsaDriver.cpp b/src/AlsaDriver.cpp
index 8ad3569..41ee7c4 100644
--- a/src/AlsaDriver.cpp
+++ b/src/AlsaDriver.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "make_alsa_driver.hpp"
 
diff --git a/src/AudioDriver.hpp b/src/AudioDriver.hpp
index 06cfe7f..ac3d5ec 100644
--- a/src/AudioDriver.hpp
+++ b/src/AudioDriver.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_AUDIODRIVER_HPP
 #define PATCHAGE_AUDIODRIVER_HPP
diff --git a/src/Canvas.cpp b/src/Canvas.cpp
index d86049d..b244972 100644
--- a/src/Canvas.cpp
+++ b/src/Canvas.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Canvas.hpp"
 
diff --git a/src/Canvas.hpp b/src/Canvas.hpp
index 943b399..4eef24e 100644
--- a/src/Canvas.hpp
+++ b/src/Canvas.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CANVAS_HPP
 #define PATCHAGE_CANVAS_HPP
diff --git a/src/CanvasModule.cpp b/src/CanvasModule.cpp
index d9e3c9c..b567212 100644
--- a/src/CanvasModule.cpp
+++ b/src/CanvasModule.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2010-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2010-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "CanvasModule.hpp"
 
diff --git a/src/CanvasModule.hpp b/src/CanvasModule.hpp
index e86699c..7ce8950 100644
--- a/src/CanvasModule.hpp
+++ b/src/CanvasModule.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CANVASMODULE_HPP
 #define PATCHAGE_CANVASMODULE_HPP
diff --git a/src/CanvasPort.hpp b/src/CanvasPort.hpp
index 3376e15..71c1117 100644
--- a/src/CanvasPort.hpp
+++ b/src/CanvasPort.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CANVASPORT_HPP
 #define PATCHAGE_CANVASPORT_HPP
diff --git a/src/ClientID.hpp b/src/ClientID.hpp
index 911d2ec..7bf8faa 100644
--- a/src/ClientID.hpp
+++ b/src/ClientID.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CLIENTID_HPP
 #define PATCHAGE_CLIENTID_HPP
diff --git a/src/ClientInfo.hpp b/src/ClientInfo.hpp
index 8acddfe..2dd755e 100644
--- a/src/ClientInfo.hpp
+++ b/src/ClientInfo.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CLIENTINFO_HPP
 #define PATCHAGE_CLIENTINFO_HPP
diff --git a/src/ClientType.hpp b/src/ClientType.hpp
index 4785501..0812aa0 100644
--- a/src/ClientType.hpp
+++ b/src/ClientType.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CLIENTTYPE_HPP
 #define PATCHAGE_CLIENTTYPE_HPP
diff --git a/src/Configuration.cpp b/src/Configuration.cpp
index e498487..679feb1 100644
--- a/src/Configuration.cpp
+++ b/src/Configuration.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Configuration.hpp"
 
diff --git a/src/Configuration.hpp b/src/Configuration.hpp
index d98968f..9c9142d 100644
--- a/src/Configuration.hpp
+++ b/src/Configuration.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_CONFIGURATION_HPP
 #define PATCHAGE_CONFIGURATION_HPP
diff --git a/src/Coord.hpp b/src/Coord.hpp
index 2d6a85a..b24d7dc 100644
--- a/src/Coord.hpp
+++ b/src/Coord.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_COORD_HPP
 #define PATCHAGE_COORD_HPP
diff --git a/src/Driver.hpp b/src/Driver.hpp
index da11765..027e973 100644
--- a/src/Driver.hpp
+++ b/src/Driver.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_DRIVER_HPP
 #define PATCHAGE_DRIVER_HPP
diff --git a/src/Drivers.cpp b/src/Drivers.cpp
index 4f57f34..6341a63 100644
--- a/src/Drivers.cpp
+++ b/src/Drivers.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Drivers.hpp"
 
diff --git a/src/Drivers.hpp b/src/Drivers.hpp
index ae3c063..c8938b8 100644
--- a/src/Drivers.hpp
+++ b/src/Drivers.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_DRIVERS_HPP
 #define PATCHAGE_DRIVERS_HPP
diff --git a/src/Event.hpp b/src/Event.hpp
index 233d1a1..0ad6b44 100644
--- a/src/Event.hpp
+++ b/src/Event.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_EVENT_HPP
 #define PATCHAGE_EVENT_HPP
diff --git a/src/ILog.hpp b/src/ILog.hpp
index d71059a..e5759a2 100644
--- a/src/ILog.hpp
+++ b/src/ILog.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_ILOG_HPP
 #define PATCHAGE_ILOG_HPP
diff --git a/src/JackDbusDriver.cpp b/src/JackDbusDriver.cpp
index 7710e56..4e9b23c 100644
--- a/src/JackDbusDriver.cpp
+++ b/src/JackDbusDriver.cpp
@@ -1,19 +1,6 @@
-/* This file is part of Patchage.
- * Copyright 2008-2020 David Robillard <d@drobilla.net>
- * Copyright 2008 Nedko Arnaudov <nedko@arnaudov.name>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2008-2020 David Robillard <d@drobilla.net>
+// Copyright 2008 Nedko Arnaudov <nedko@arnaudov.name>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "AudioDriver.hpp"
 #include "ClientType.hpp"
diff --git a/src/JackLibDriver.cpp b/src/JackLibDriver.cpp
index 8c804ba..927c923 100644
--- a/src/JackLibDriver.cpp
+++ b/src/JackLibDriver.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "AudioDriver.hpp"
 #include "ClientID.hpp"
diff --git a/src/Legend.cpp b/src/Legend.cpp
index 294f589..bdf51bc 100644
--- a/src/Legend.cpp
+++ b/src/Legend.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2014-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2014-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Legend.hpp"
 
diff --git a/src/Legend.hpp b/src/Legend.hpp
index 81fbd86..e690120 100644
--- a/src/Legend.hpp
+++ b/src/Legend.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2014-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2014-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_LEGEND_HPP
 #define PATCHAGE_LEGEND_HPP
diff --git a/src/Metadata.cpp b/src/Metadata.cpp
index e75cf19..aa60582 100644
--- a/src/Metadata.cpp
+++ b/src/Metadata.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2014-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2014-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Metadata.hpp"
 
diff --git a/src/Metadata.hpp b/src/Metadata.hpp
index 489c0b2..15d9672 100644
--- a/src/Metadata.hpp
+++ b/src/Metadata.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_METADATA_HPP
 #define PATCHAGE_METADATA_HPP
diff --git a/src/Options.hpp b/src/Options.hpp
index dd143fe..76846aa 100644
--- a/src/Options.hpp
+++ b/src/Options.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_OPTIONS_HPP
 #define PATCHAGE_OPTIONS_HPP
diff --git a/src/Patchage.cpp b/src/Patchage.cpp
index 7997354..29f6ecc 100644
--- a/src/Patchage.cpp
+++ b/src/Patchage.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Patchage.hpp"
 
diff --git a/src/Patchage.hpp b/src/Patchage.hpp
index c3ed61d..f5462ce 100644
--- a/src/Patchage.hpp
+++ b/src/Patchage.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_PATCHAGE_HPP
 #define PATCHAGE_PATCHAGE_HPP
diff --git a/src/PortID.hpp b/src/PortID.hpp
index 2ef7a0c..e9011c9 100644
--- a/src/PortID.hpp
+++ b/src/PortID.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2008-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2008-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_PORTID_HPP
 #define PATCHAGE_PORTID_HPP
diff --git a/src/PortInfo.hpp b/src/PortInfo.hpp
index 3a4103d..860d1db 100644
--- a/src/PortInfo.hpp
+++ b/src/PortInfo.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_PORTINFO_HPP
 #define PATCHAGE_PORTINFO_HPP
diff --git a/src/PortNames.hpp b/src/PortNames.hpp
index 1ec7685..4dce7c6 100644
--- a/src/PortNames.hpp
+++ b/src/PortNames.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2008-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2008-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_PORTNAMES_HPP
 #define PATCHAGE_PORTNAMES_HPP
diff --git a/src/PortType.hpp b/src/PortType.hpp
index 9db0c1f..ec322b7 100644
--- a/src/PortType.hpp
+++ b/src/PortType.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_PORTTYPE_HPP
 #define PATCHAGE_PORTTYPE_HPP
diff --git a/src/Reactor.cpp b/src/Reactor.cpp
index b48d85d..6c9a508 100644
--- a/src/Reactor.cpp
+++ b/src/Reactor.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "Reactor.hpp"
 
diff --git a/src/Reactor.hpp b/src/Reactor.hpp
index 58b1ffc..4d92793 100644
--- a/src/Reactor.hpp
+++ b/src/Reactor.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_REACTOR_HPP
 #define PATCHAGE_REACTOR_HPP
diff --git a/src/Setting.hpp b/src/Setting.hpp
index 90fb124..9720ba2 100644
--- a/src/Setting.hpp
+++ b/src/Setting.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_SETTING_HPP
 #define PATCHAGE_SETTING_HPP
diff --git a/src/SignalDirection.hpp b/src/SignalDirection.hpp
index 94f5126..3d499a4 100644
--- a/src/SignalDirection.hpp
+++ b/src/SignalDirection.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_SIGNALDIRECTION_HPP
 #define PATCHAGE_SIGNALDIRECTION_HPP
diff --git a/src/TextViewLog.cpp b/src/TextViewLog.cpp
index 33b7d22..50d85b0 100644
--- a/src/TextViewLog.cpp
+++ b/src/TextViewLog.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "TextViewLog.hpp"
 
diff --git a/src/TextViewLog.hpp b/src/TextViewLog.hpp
index 5a91853..31b786d 100644
--- a/src/TextViewLog.hpp
+++ b/src/TextViewLog.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_TEXTVIEWLOG_HPP
 #define PATCHAGE_TEXTVIEWLOG_HPP
diff --git a/src/UIFile.hpp b/src/UIFile.hpp
index 28d7c82..6eb9d9c 100644
--- a/src/UIFile.hpp
+++ b/src/UIFile.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_UIFILE_HPP
 #define PATCHAGE_UIFILE_HPP
diff --git a/src/Widget.hpp b/src/Widget.hpp
index 3d13b91..d818210 100644
--- a/src/Widget.hpp
+++ b/src/Widget.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_WIDGET_HPP
 #define PATCHAGE_WIDGET_HPP
diff --git a/src/binary_location.h b/src/binary_location.h
index d3394f3..0cc3688 100644
--- a/src/binary_location.h
+++ b/src/binary_location.h
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2008-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2008-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include <dlfcn.h>
 
diff --git a/src/event_to_string.cpp b/src/event_to_string.cpp
index c8a6c42..159a863 100644
--- a/src/event_to_string.cpp
+++ b/src/event_to_string.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "event_to_string.hpp"
 
diff --git a/src/event_to_string.hpp b/src/event_to_string.hpp
index db55733..926065c 100644
--- a/src/event_to_string.hpp
+++ b/src/event_to_string.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_EVENT_TO_STRING_HPP
 #define PATCHAGE_EVENT_TO_STRING_HPP
diff --git a/src/handle_event.cpp b/src/handle_event.cpp
index fa543e6..373b74a 100644
--- a/src/handle_event.cpp
+++ b/src/handle_event.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "handle_event.hpp"
 
diff --git a/src/handle_event.hpp b/src/handle_event.hpp
index 5cf15ef..fae6d78 100644
--- a/src/handle_event.hpp
+++ b/src/handle_event.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2021 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2021 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_HANDLE_EVENT_HPP
 #define PATCHAGE_HANDLE_EVENT_HPP
diff --git a/src/jackey.h b/src/jackey.h
index 2c0e298..607eadb 100644
--- a/src/jackey.h
+++ b/src/jackey.h
@@ -1,18 +1,5 @@
-/*
-  Copyright 2014-2020 David Robillard <d@drobilla.net>
-
-  Permission to use, copy, modify, and/or distribute this software for any
-  purpose with or without fee is hereby granted, provided that the above
-  copyright notice and this permission notice appear in all copies.
-
-  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
+// Copyright 2014-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef JACKEY_H
 #define JACKEY_H
diff --git a/src/main.cpp b/src/main.cpp
index 499db30..4466e15 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2022 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifdef __APPLE__
 #  include "binary_location.h"
@@ -91,7 +78,7 @@ void
 print_version()
 {
   std::cout << "Patchage " PATCHAGE_VERSION << R"(
-Copyright 2007-2020 David Robillard <d@drobilla.net>.
+Copyright 2007-2022 David Robillard <d@drobilla.net>.
 License GPLv3+: <http://gnu.org/licenses/gpl.html>.
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.
diff --git a/src/make_alsa_driver.hpp b/src/make_alsa_driver.hpp
index cfd89c0..7f3b594 100644
--- a/src/make_alsa_driver.hpp
+++ b/src/make_alsa_driver.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_MAKE_ALSA_DRIVER_HPP
 #define PATCHAGE_MAKE_ALSA_DRIVER_HPP
diff --git a/src/make_jack_driver.hpp b/src/make_jack_driver.hpp
index 38aef65..79c6eb5 100644
--- a/src/make_jack_driver.hpp
+++ b/src/make_jack_driver.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2007-2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2007-2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_MAKE_JACK_DRIVER_HPP
 #define PATCHAGE_MAKE_JACK_DRIVER_HPP
diff --git a/src/patchage_config.h b/src/patchage_config.h
index 579a253..5cc311e 100644
--- a/src/patchage_config.h
+++ b/src/patchage_config.h
@@ -1,5 +1,5 @@
 // Copyright 2021-2022 David Robillard <d@drobilla.net>
-// SPDX-License-Identifier: ISC
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 /*
   Configuration header that defines reasonable defaults at compile time.
diff --git a/src/warnings.hpp b/src/warnings.hpp
index e8337a1..ee9b3d8 100644
--- a/src/warnings.hpp
+++ b/src/warnings.hpp
@@ -1,18 +1,5 @@
-/* This file is part of Patchage.
- * Copyright 2020 David Robillard <d@drobilla.net>
- *
- * Patchage 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 3 of the License, or (at your option)
- * any later version.
- *
- * Patchage 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 details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Patchage.  If not, see <http://www.gnu.org/licenses/>.
- */
+// Copyright 2020 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef PATCHAGE_WARNINGS_HPP
 #define PATCHAGE_WARNINGS_HPP