OSGeo · wenzeslaus · Jul 17, 2026
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -5,8 +5,7 @@
 # PURPOSE:      CMakeLists.txt root that adds options to activate/deactivate
 #               3rd party libraries
 #
-# COPYRIGHT:    (C) 2020-2025 by the GRASS Development Team
-#
+# SPDX-FileCopyrightText: 2020-2025 Other GRASS authors
 # SPDX-License-Identifier: GPL-2.0-or-later
 #
 ################################################################################

diff --git a/Makefile b/Makefile
@@ -9,11 +9,8 @@
 # PURPOSE:  	It provides the commands necessary to compile, install,
 #   	    	clean, and uninstall GRASS
 #   	    	See INSTALL.md file for usage.
-# COPYRIGHT:    (C) 2002-2026 by the GRASS Development Team
-#
-#               This program is free software under the GNU General Public
-#   	    	License (>=v2). Read the file COPYING that comes with GRASS
-#   	    	for details.
+# SPDX-FileCopyrightText: 2002-2026 Other GRASS authors
+# SPDX-License-Identifier: GPL-2.0-or-later
 #
 #############################################################################
 

diff --git a/cmake/ctypesgen.cmake b/cmake/ctypesgen.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    Generation of Python interface to GRASS API
-COPYRIGHT:  (c) 2020-2025 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020-2025 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/find_scripts/FindCBLAS.cmake b/cmake/find_scripts/FindCBLAS.cmake
@@ -1,5 +1,6 @@
 #[[
-COPYRIGHT: (c) 2025 Nicklas Larsson and the GRASS Development Team
+SPDX-FileCopyrightText: 2025 Nicklas Larsson
+SPDX-FileCopyrightText: Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 ]]
 

diff --git a/cmake/find_scripts/FindLAPACKE.cmake b/cmake/find_scripts/FindLAPACKE.cmake
@@ -1,5 +1,6 @@
 #[[
-COPYRIGHT: (c) 2025 Nicklas Larsson and the GRASS Development Team
+SPDX-FileCopyrightText: 2025 Nicklas Larsson
+SPDX-FileCopyrightText: Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 ]]
 

diff --git a/cmake/find_scripts/FindNetCDF.cmake b/cmake/find_scripts/FindNetCDF.cmake
@@ -1,5 +1,6 @@
 #[[
-COPYRIGHT: (c) 2020-2025 Rashad Kanavath and the GRASS Development Team
+SPDX-FileCopyrightText: 2020-2025 Rashad Kanavath
+SPDX-FileCopyrightText: Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 ]]
 

diff --git a/cmake/find_scripts/FindReadline.cmake b/cmake/find_scripts/FindReadline.cmake
@@ -1,5 +1,6 @@
 #[[
-COPYRIGHT: (c) 2025 Nicklas Larsson and the GRASS Development Team
+SPDX-FileCopyrightText: 2025 Nicklas Larsson
+SPDX-FileCopyrightText: Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 ]]
 

diff --git a/cmake/locale_strings.cmake b/cmake/locale_strings.cmake
@@ -2,8 +2,7 @@
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    create translation strings for grass scripts
             environment. TODO use custom_command POST_BUILD directly
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 
 PARAMS:     BINARY_DIR

diff --git a/cmake/modules/build_addon.cmake b/cmake/modules/build_addon.cmake
@@ -1,7 +1,7 @@
 #[[
 AUTHOR(S):  Nicklas Larsson <n_larsson yahoo.com>
 PURPOSE:    CMake module to build GRASS Addons
-COPYRIGHT:  (C) 2025 by the GRASS Development Team
+SPDX-FileCopyrightText: 2025 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 ]]
 

diff --git a/cmake/modules/build_gui_in_subdir.cmake b/cmake/modules/build_gui_in_subdir.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    build_gui_in_subdir is the cmake function that builds g.gui.* modules
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/build_library_in_subdir.cmake b/cmake/modules/build_library_in_subdir.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    This is the macro to make grass libraries through build_module function.
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/build_module.cmake b/cmake/modules/build_module.cmake
@@ -3,8 +3,7 @@ AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    This is the main function that builds all grass libraries (prefixed with grass_)
             and grass executables. This cmake function is tailored to meet requirement of grass
             gnu make rules
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/build_program.cmake b/cmake/modules/build_program.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    Shortcut macro to call build_module with EXE argument set
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/build_program_in_subdir.cmake b/cmake/modules/build_program_in_subdir.cmake
@@ -2,8 +2,7 @@
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    CMake macro to build a grass executable (program) under sub directory
             which is passed as argument to macro
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/build_script_in_subdir.cmake b/cmake/modules/build_script_in_subdir.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    A CMake function that builds grass python script modules
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/copy_python_files_in_subdir.cmake b/cmake/modules/copy_python_files_in_subdir.cmake
@@ -3,8 +3,7 @@ AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    Simply copy python file in given subdirectory
             Destination will be relative to GISBASE directory set in root
             CMakeLists.txt
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/generate_docs.cmake b/cmake/modules/generate_docs.cmake
@@ -1,7 +1,7 @@
 #[[
 AUTHOR(S):  Nicklas Larsson
 PURPOSE:    Generate documentation (html, man etc.)
-COPYRIGHT:  (C) 2025-2026 by the GRASS Development Team
+SPDX-FileCopyrightText: 2025-2026 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 ]]
 

diff --git a/cmake/modules/get_host_arch.cmake b/cmake/modules/get_host_arch.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    Get host system architecture
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/get_versions.cmake b/cmake/modules/get_versions.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    Read major, minor patch, date from given version file
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/cmake/modules/repo_status.cmake b/cmake/modules/repo_status.cmake
@@ -1,8 +1,7 @@
 #[[
 AUTHOR(S):  Rashad Kanavath <rashad km gmail>
 PURPOSE:    Read git status of grass repository if building from git clone
-COPYRIGHT:  (C) 2020 by the GRASS Development Team
-
+SPDX-FileCopyrightText: 2020 Other GRASS authors
 SPDX-License-Identifier: GPL-2.0-or-later
 #]]
 

diff --git a/configure.ac b/configure.ac
@@ -9,11 +9,8 @@
 # PURPOSE:	This configure runs all the tests to determine what components
 #		are installed on the current system. It also defines certain
 #		configuration variables for compilation and installation.
-# COPYRIGHT:    (C) 2000-2026 by the GRASS Development Team
-#
-#		This program is free software under the GNU General
-#		Public License (>=v2). Read the file COPYING that
-#		comes with GRASS for details.
+# SPDX-FileCopyrightText: 2000-2026 Other GRASS authors
+# SPDX-License-Identifier: GPL-2.0-or-later
 #
 # MANUAL:       https://www.gnu.org/software/autoconf/manual/autoconf.html
 #               http://savannah.gnu.org/projects/autoconf/

diff --git a/db/db.columns/main.c b/db/db.columns/main.c
@@ -5,11 +5,8 @@
  *               Glynn Clements <glynn gclements.plus.com>,
  *               Markus Neteler <neteler itc.it>
  * PURPOSE:      list the column names for a table
- * COPYRIGHT:    (C) 2002-2006 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2006 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.connect/main.c b/db/db.connect/main.c
@@ -8,11 +8,8 @@
  *               Hamish Bowman <hamish_b yahoo com>
  *               Martin Landa <landa.martin gmail.com> ('d' flag)
  * PURPOSE:      set parameters for connection to database
- * COPYRIGHT:    (C) 2002-2014 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2014 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 #include <stdio.h>

diff --git a/db/db.copy/main.c b/db/db.copy/main.c
@@ -5,11 +5,8 @@
  *               Glynn Clements <glynn gclements.plus.com>,
  *               Markus Neteler <neteler itc.it>
  * PURPOSE:      copy a table
- * COPYRIGHT:    (C) 2003-2006 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2003-2006 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.createdb/main.c b/db/db.createdb/main.c
@@ -5,11 +5,8 @@
  *               Glynn Clements <glynn gclements.plus.com>,
  *               Markus Neteler <neteler itc.it>
  * PURPOSE:      create a new empty database
- * COPYRIGHT:    (C) 2002-2006 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2006 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.databases/main.c b/db/db.databases/main.c
@@ -5,11 +5,8 @@
  *               Glynn Clements <glynn gclements.plus.com>,
  *               Markus Neteler <neteler itc.it>
  * PURPOSE:      lists all databases for a given driver
- * COPYRIGHT:    (C) 2002-2006, 2012 by the GRASS Development Team
- *
- *               This program is free software under the GNU General
- *               Public License (>=v2). Read the file COPYING that
- *               comes with GRASS for details.
+ * SPDX-FileCopyrightText: 2002-2006, 2012 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.describe/main.c b/db/db.describe/main.c
@@ -6,11 +6,8 @@
  *               Markus Neteler <neteler itc.it>,
  *               Stephan Holl
  * PURPOSE:      Displays table information
- * COPYRIGHT:    (C) 2002-2021 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2021 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.drivers/main.c b/db/db.drivers/main.c
@@ -6,11 +6,8 @@
  *               Markus Neteler <neteler itc.it>,
  *               Stephan Holl
  * PURPOSE:      lists all database drivers
- * COPYRIGHT:    (C) 2002-2006, 2012 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2006, 2012 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.dropdb/main.c b/db/db.dropdb/main.c
@@ -6,11 +6,8 @@
  *               Markus Neteler <neteler itc.it>,
  *               Stephan Holl
  * PURPOSE:      removes an existing database
- * COPYRIGHT:    (C) 2002-2006 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2006 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.execute/main.c b/db/db.execute/main.c
@@ -9,11 +9,8 @@
  *               Stephan Holl
  *               Martin Landa <landa.martin gmail.com>
  * PURPOSE:      process one non-select sql statement
- * COPYRIGHT:    (C) 2002-2011 by the GRASS Development Team
- *
- *               This program is free software under the GNU General
- *               Public License (>=v2). Read the file COPYING that
- *               comes with GRASS for details.
+ * SPDX-FileCopyrightText: 2002-2011 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.login/main.c b/db/db.login/main.c
@@ -5,11 +5,8 @@
  *               Glynn Clements <glynn gclements.plus.com>
  *               Markus Neteler <neteler itc.it>
  * PURPOSE:      Store db login settings
- * COPYRIGHT:    (C) 2004-2015 by the GRASS Development Team
- *
- *               This program is free software under the GNU General
- *               Public License (>=v2). Read the file COPYING that
- *               comes with GRASS for details.
+ * SPDX-FileCopyrightText: 2004-2015 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 #include <stdio.h>

diff --git a/db/db.select/main.c b/db/db.select/main.c
@@ -8,11 +8,8 @@
  *               Markus Neteler <neteler itc.it>
  *               Stephan Holl
  * PURPOSE:      Process one sql select statement
- * COPYRIGHT:    (C) 2002-2010, 2013 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2010, 2013 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/
 

diff --git a/db/db.select/testsuite/test_db_select_json_csv.py b/db/db.select/testsuite/test_db_select_json_csv.py
@@ -3,11 +3,8 @@
 # MODULE:       Test of db.select
 # AUTHOR(S):    Gulshan Kumar
 # PURPOSE:      Test parsing and structure of CSV and JSON outputs
-# COPYRIGHT:    (C) 2021-2025 by the GRASS Development Team
-#
-#               This program is free software under the GNU General Public
-#               License (>=v2). Read the file COPYING that comes with GRASS
-#               for details.
+# SPDX-FileCopyrightText: 2021-2025 Other GRASS authors
+# SPDX-License-Identifier: GPL-2.0-or-later
 #
 #############################################################################
 

diff --git a/db/db.tables/main.c b/db/db.tables/main.c
@@ -6,11 +6,8 @@
  *               Markus Neteler <neteler itc.it>,
  *               Stephan Holl
  * PURPOSE:      lists all tables for a given database
- * COPYRIGHT:    (C) 2002-2006 by the GRASS Development Team
- *
- *               This program is free software under the GNU General Public
- *               License (>=v2). Read the file COPYING that comes with GRASS
- *               for details.
+ * SPDX-FileCopyrightText: 2002-2006 Other GRASS authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  *
  *****************************************************************************/