Licence update to GPLv3.0

23 files changed, 345 insertions, 46 deletions

diff --git a/src/audio.c b/src/audio.c
index 11c983c..a139e35 100644
--- a/src/audio.c
+++ b/src/audio.c
@@ -3,9 +3,22 @@
  *
  * Sound stuff
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/audio.h b/src/audio.h
index fc90980..e6aa540 100644
--- a/src/audio.h
+++ b/src/audio.h
@@ -3,9 +3,22 @@
  *
  * Sound stuff
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/game.c b/src/game.c
index dd309c5..a377b84 100644
--- a/src/game.c
+++ b/src/game.c
@@ -3,9 +3,22 @@
  *
  * Game book-keeping
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/game.h b/src/game.h
index 6f0f5c1..5a1cef7 100644
--- a/src/game.h
+++ b/src/game.h
@@ -3,9 +3,22 @@
  *
  * Game book-keeping
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/gentexture.c b/src/gentexture.c
index d43f8b5..25f3fa3 100644
--- a/src/gentexture.c
+++ b/src/gentexture.c
@@ -3,9 +3,22 @@
  *
  * Generate normal map stuff
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/glcheck.c b/src/glcheck.c
index 14667b9..734fe56 100644
--- a/src/glcheck.c
+++ b/src/glcheck.c
@@ -3,9 +3,22 @@
  *
  * Quick check of OpenGL functionality
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/main.c b/src/main.c
index 09ed04b..1f07910 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3,9 +3,22 @@
  *
  * Where it all begins
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/model.c b/src/model.c
index 3dc6d46..93fe424 100644
--- a/src/model.c
+++ b/src/model.c
@@ -3,9 +3,22 @@
  *
  * Basic functions to handle models
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/model.h b/src/model.h
index 926e9b5..cccb0e9 100644
--- a/src/model.h
+++ b/src/model.h
@@ -3,9 +3,22 @@
  *
  * Basic functions to handle models
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/obj2model.c b/src/obj2model.c
index 9b6f9ba..102a4f7 100644
--- a/src/obj2model.c
+++ b/src/obj2model.c
@@ -3,9 +3,22 @@
  *
  * Turn Wavefront OBJ files into Thrust3D models
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/physics.c b/src/physics.c
index 7416e64..e858cdb 100644
--- a/src/physics.c
+++ b/src/physics.c
@@ -3,9 +3,22 @@
  *
  * Calculate what happens
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/physics.h b/src/physics.h
index e1e3ffc..b119e5f 100644
--- a/src/physics.h
+++ b/src/physics.h
@@ -3,9 +3,22 @@
  *
  * Calculate what happens
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/render-text.c b/src/render-text.c
index 8285827..0b1a44d 100644
--- a/src/render-text.c
+++ b/src/render-text.c
@@ -3,9 +3,22 @@
  *
  * Simple text rendering
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/render-text.h b/src/render-text.h
index 243dfb0..506a086 100644
--- a/src/render-text.h
+++ b/src/render-text.h
@@ -3,9 +3,22 @@
  *
  * Simple text rendering
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/render.c b/src/render.c
index 2338057..f4ff355 100644
--- a/src/render.c
+++ b/src/render.c
@@ -3,9 +3,22 @@
  *
  * Render the scene
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/render.h b/src/render.h
index 8dd00a4..498bc1a 100644
--- a/src/render.h
+++ b/src/render.h
@@ -3,9 +3,22 @@
  *
  * Render the scene
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/shaderutils.c b/src/shaderutils.c
index 6db4212..d81db09 100644
--- a/src/shaderutils.c
+++ b/src/shaderutils.c
@@ -3,9 +3,22 @@
  *
  * Shader utilities
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/shaderutils.h b/src/shaderutils.h
index df8fb78..3e8139f 100644
--- a/src/shaderutils.h
+++ b/src/shaderutils.h
@@ -3,9 +3,22 @@
  *
  * Shader utilities
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/texture.c b/src/texture.c
index 9476d75..6a4139f 100644
--- a/src/texture.c
+++ b/src/texture.c
@@ -3,9 +3,22 @@
  *
  * Handle textures
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/texture.h b/src/texture.h
index df4091e..40143d3 100644
--- a/src/texture.h
+++ b/src/texture.h
@@ -3,9 +3,22 @@
  *
  * Handle textures
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/types.h b/src/types.h
index c9a4b0c..1800c9d 100644
--- a/src/types.h
+++ b/src/types.h
@@ -3,9 +3,22 @@
  *
  * All the data types - avoid circular reference silliness
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/utils.c b/src/utils.c
index e957f2a..1cee30e 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -3,9 +3,22 @@
  *
  * Utility stuff
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
 
diff --git a/src/utils.h b/src/utils.h
index d25dc3c..500a5b0 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -3,9 +3,22 @@
  *
  * Utility stuff
  *
- * (c) 2008 Thomas White <taw27@cam.ac.uk>
+ * Copyright (c) 2008 Thomas White <taw27@cam.ac.uk>
  *
- *  thrust3d - a silly game
+ * This file is part of Thrust3D - a silly game
+ *
+ * Thrust3D 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.
+ *
+ * Thrust3D 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 Thrust3D.  If not, see <http://www.gnu.org/licenses/>.
  *
  */