12 files changed, 24 insertions, 168 deletions
diff --git a/include/raul/Array.hpp b/include/raul/Array.hpp
index 911fca9..a56ecb4 100644
--- a/include/raul/Array.hpp
+++ b/include/raul/Array.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2013 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2013 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_ARRAY_HPP
 #define RAUL_ARRAY_HPP
diff --git a/include/raul/Deletable.hpp b/include/raul/Deletable.hpp
index 704d89c..a510690 100644
--- a/include/raul/Deletable.hpp
+++ b/include/raul/Deletable.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2013 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2013 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_DELETABLE_HPP
 #define RAUL_DELETABLE_HPP
diff --git a/include/raul/DoubleBuffer.hpp b/include/raul/DoubleBuffer.hpp
index ac5256d..326b24b 100644
--- a/include/raul/DoubleBuffer.hpp
+++ b/include/raul/DoubleBuffer.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2013 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2013 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_DOUBLEBUFFER_HPP
 #define RAUL_DOUBLEBUFFER_HPP
diff --git a/include/raul/Exception.hpp b/include/raul/Exception.hpp
index 13dea19..ef5b764 100644
--- a/include/raul/Exception.hpp
+++ b/include/raul/Exception.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2012 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2012 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_EXCEPTION_HPP
 #define RAUL_EXCEPTION_HPP
diff --git a/include/raul/Maid.hpp b/include/raul/Maid.hpp
index 5c02b7f..f50bc24 100644
--- a/include/raul/Maid.hpp
+++ b/include/raul/Maid.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2017 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2017 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_MAID_HPP
 #define RAUL_MAID_HPP
diff --git a/include/raul/Noncopyable.hpp b/include/raul/Noncopyable.hpp
index 76e1f6d..091609f 100644
--- a/include/raul/Noncopyable.hpp
+++ b/include/raul/Noncopyable.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2013 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2013 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_NONCOPYABLE_HPP
 #define RAUL_NONCOPYABLE_HPP
diff --git a/include/raul/Path.hpp b/include/raul/Path.hpp
index 1ddfb24..eddc4f0 100644
--- a/include/raul/Path.hpp
+++ b/include/raul/Path.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2014 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2014 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_PATH_HPP
 #define RAUL_PATH_HPP
diff --git a/include/raul/Process.hpp b/include/raul/Process.hpp
index e92effc..056cfff 100644
--- a/include/raul/Process.hpp
+++ b/include/raul/Process.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2015 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2015 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_PROCESS_HPP
 #define RAUL_PROCESS_HPP
diff --git a/include/raul/RingBuffer.hpp b/include/raul/RingBuffer.hpp
index 9c49d1b..829efa3 100644
--- a/include/raul/RingBuffer.hpp
+++ b/include/raul/RingBuffer.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2012 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2012 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_RINGBUFFER_HPP
 #define RAUL_RINGBUFFER_HPP
diff --git a/include/raul/Semaphore.hpp b/include/raul/Semaphore.hpp
index a30737b..f66bb9d 100644
--- a/include/raul/Semaphore.hpp
+++ b/include/raul/Semaphore.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2014 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2014 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_SEMAPHORE_HPP
 #define RAUL_SEMAPHORE_HPP
diff --git a/include/raul/Socket.hpp b/include/raul/Socket.hpp
index d73cf69..bd8ea35 100644
--- a/include/raul/Socket.hpp
+++ b/include/raul/Socket.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2015 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2015 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_SOCKET_HPP
 #define RAUL_SOCKET_HPP
diff --git a/include/raul/Symbol.hpp b/include/raul/Symbol.hpp
index a4ac6bd..8b8704c 100644
--- a/include/raul/Symbol.hpp
+++ b/include/raul/Symbol.hpp
@@ -1,17 +1,5 @@
-/*
-  Copyright 2007-2014 David Robillard <d@drobilla.net>
-
-  Raul 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 any later version.
-
-  Raul 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 Raul.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// Copyright 2007-2014 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: GPL-3.0-or-later
 
 #ifndef RAUL_SYMBOL_HPP
 #define RAUL_SYMBOL_HPP