File headers: SPDX License migration

Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069

12 files changed, 24 insertions, 217 deletions

diff --git a/intern/iksolver/CMakeLists.txt b/intern/iksolver/CMakeLists.txt
index a7a346ccddd..3954cd5a343 100644
--- a/intern/iksolver/CMakeLists.txt
+++ b/intern/iksolver/CMakeLists.txt
@@ -1,22 +1,5 @@
-# ***** BEGIN GPL LICENSE BLOCK *****
-#
-# 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.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# The Original Code is Copyright (C) 2006, Blender Foundation
-# All rights reserved.
-# ***** END GPL LICENSE BLOCK *****
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright 2006 Blender Foundation. All rights reserved.
 
 set(INC
   intern
diff --git a/intern/iksolver/extern/IK_solver.h b/intern/iksolver/extern/IK_solver.h
index 302ed1545b4..662ef3c1177 100644
--- a/intern/iksolver/extern/IK_solver.h
+++ b/intern/iksolver/extern/IK_solver.h
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_Math.h b/intern/iksolver/intern/IK_Math.h
index 6a284df51f4..90b210bd46e 100644
--- a/intern/iksolver/intern/IK_Math.h
+++ b/intern/iksolver/intern/IK_Math.h
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QJacobian.cpp b/intern/iksolver/intern/IK_QJacobian.cpp
index 7e4d48e37c9..39c0e6eb348 100644
--- a/intern/iksolver/intern/IK_QJacobian.cpp
+++ b/intern/iksolver/intern/IK_QJacobian.cpp
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QJacobian.h b/intern/iksolver/intern/IK_QJacobian.h
index ed2d41368ad..aa6103ca03a 100644
--- a/intern/iksolver/intern/IK_QJacobian.h
+++ b/intern/iksolver/intern/IK_QJacobian.h
@@ -1,22 +1,6 @@
 
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QJacobianSolver.cpp b/intern/iksolver/intern/IK_QJacobianSolver.cpp
index efbf271c4b2..0758cf317a5 100644
--- a/intern/iksolver/intern/IK_QJacobianSolver.cpp
+++ b/intern/iksolver/intern/IK_QJacobianSolver.cpp
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QJacobianSolver.h b/intern/iksolver/intern/IK_QJacobianSolver.h
index 0c8ef661129..11b8a8ee99c 100644
--- a/intern/iksolver/intern/IK_QJacobianSolver.h
+++ b/intern/iksolver/intern/IK_QJacobianSolver.h
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QSegment.cpp b/intern/iksolver/intern/IK_QSegment.cpp
index 544d68e99ca..84c1b0619eb 100644
--- a/intern/iksolver/intern/IK_QSegment.cpp
+++ b/intern/iksolver/intern/IK_QSegment.cpp
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QSegment.h b/intern/iksolver/intern/IK_QSegment.h
index 4abb94ec4f7..afb85321d70 100644
--- a/intern/iksolver/intern/IK_QSegment.h
+++ b/intern/iksolver/intern/IK_QSegment.h
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QTask.cpp b/intern/iksolver/intern/IK_QTask.cpp
index 30fef1ff670..caf9585a94e 100644
--- a/intern/iksolver/intern/IK_QTask.cpp
+++ b/intern/iksolver/intern/IK_QTask.cpp
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_QTask.h b/intern/iksolver/intern/IK_QTask.h
index c0f1672ef80..7a68a8d3cc0 100644
--- a/intern/iksolver/intern/IK_QTask.h
+++ b/intern/iksolver/intern/IK_QTask.h
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver
diff --git a/intern/iksolver/intern/IK_Solver.cpp b/intern/iksolver/intern/IK_Solver.cpp
index 368546d7cef..3aea4422d41 100644
--- a/intern/iksolver/intern/IK_Solver.cpp
+++ b/intern/iksolver/intern/IK_Solver.cpp
@@ -1,21 +1,5 @@
-/*
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
 
 /** \file
  * \ingroup intern_iksolver