16 files changed, 16 insertions, 208 deletions
diff --git a/gr-qtgui/examples/CMakeLists.txt b/gr-qtgui/examples/CMakeLists.txt
index 8180039ee2..53a03d6b09 100644
--- a/gr-qtgui/examples/CMakeLists.txt
+++ b/gr-qtgui/examples/CMakeLists.txt
@@ -2,20 +2,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 
 include(GrPython)
 
diff --git a/gr-qtgui/examples/c++/CMakeLists.txt b/gr-qtgui/examples/c++/CMakeLists.txt
index 1ae16829e6..ceb4eaf4de 100644
--- a/gr-qtgui/examples/c++/CMakeLists.txt
+++ b/gr-qtgui/examples/c++/CMakeLists.txt
@@ -2,20 +2,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 
 include_directories(
   ${GR_QTGUI_INCLUDE_DIRS}
diff --git a/gr-qtgui/examples/c++/display_qt.cc b/gr-qtgui/examples/c++/display_qt.cc
index 21a299c93a..eafac04b01 100644
--- a/gr-qtgui/examples/c++/display_qt.cc
+++ b/gr-qtgui/examples/c++/display_qt.cc
@@ -3,20 +3,8 @@
  *
  * This file is part of GNU Radio
  *
- * GNU Radio 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, or (at your option)
- * any later version.
+ * SPDX-License-Identifier: GPL-3.0-or-later
  *
- * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
  */
 
 #include "display_qt.h"
diff --git a/gr-qtgui/examples/c++/display_qt.h b/gr-qtgui/examples/c++/display_qt.h
index 819b24407a..9f140e7db5 100644
--- a/gr-qtgui/examples/c++/display_qt.h
+++ b/gr-qtgui/examples/c++/display_qt.h
@@ -3,20 +3,8 @@
  *
  * This file is part of GNU Radio
  *
- * GNU Radio 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, or (at your option)
- * any later version.
+ * SPDX-License-Identifier: GPL-3.0-or-later
  *
- * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
  */
 
 // Q_MOC_RUN is a workaround for a QT4 + Boost version issue
diff --git a/gr-qtgui/examples/pyqt_const_c.py b/gr-qtgui/examples/pyqt_const_c.py
index e789e013bf..a02deb78a1 100644
--- a/gr-qtgui/examples/pyqt_const_c.py
+++ b/gr-qtgui/examples/pyqt_const_c.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_example_c.py b/gr-qtgui/examples/pyqt_example_c.py
index 5854d968c0..675101c5a9 100644
--- a/gr-qtgui/examples/pyqt_example_c.py
+++ b/gr-qtgui/examples/pyqt_example_c.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_example_f.py b/gr-qtgui/examples/pyqt_example_f.py
index e2f41b57cf..16d0f02681 100644
--- a/gr-qtgui/examples/pyqt_example_f.py
+++ b/gr-qtgui/examples/pyqt_example_f.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_freq_c.py b/gr-qtgui/examples/pyqt_freq_c.py
index 9140bbb882..3a7d57c93b 100644
--- a/gr-qtgui/examples/pyqt_freq_c.py
+++ b/gr-qtgui/examples/pyqt_freq_c.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_freq_f.py b/gr-qtgui/examples/pyqt_freq_f.py
index 06a6d95b0b..1059b967a7 100644
--- a/gr-qtgui/examples/pyqt_freq_f.py
+++ b/gr-qtgui/examples/pyqt_freq_f.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_histogram_f.py b/gr-qtgui/examples/pyqt_histogram_f.py
index cf2f59b9a3..5a7627475d 100644
--- a/gr-qtgui/examples/pyqt_histogram_f.py
+++ b/gr-qtgui/examples/pyqt_histogram_f.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_time_c.py b/gr-qtgui/examples/pyqt_time_c.py
index 8196b62dcc..d8a177eb4d 100644
--- a/gr-qtgui/examples/pyqt_time_c.py
+++ b/gr-qtgui/examples/pyqt_time_c.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_time_f.py b/gr-qtgui/examples/pyqt_time_f.py
index 9fc9dd5e4c..8f0d7a6e99 100644
--- a/gr-qtgui/examples/pyqt_time_f.py
+++ b/gr-qtgui/examples/pyqt_time_f.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_time_raster_b.py b/gr-qtgui/examples/pyqt_time_raster_b.py
index 278cb90ed0..b57e0592c8 100644
--- a/gr-qtgui/examples/pyqt_time_raster_b.py
+++ b/gr-qtgui/examples/pyqt_time_raster_b.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_time_raster_f.py b/gr-qtgui/examples/pyqt_time_raster_f.py
index 249ec07010..a80bde5351 100644
--- a/gr-qtgui/examples/pyqt_time_raster_f.py
+++ b/gr-qtgui/examples/pyqt_time_raster_f.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_waterfall_c.py b/gr-qtgui/examples/pyqt_waterfall_c.py
index 2c183a99ac..9d5ff333bb 100644
--- a/gr-qtgui/examples/pyqt_waterfall_c.py
+++ b/gr-qtgui/examples/pyqt_waterfall_c.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function
diff --git a/gr-qtgui/examples/pyqt_waterfall_f.py b/gr-qtgui/examples/pyqt_waterfall_f.py
index 660e7595f2..401fc81333 100644
--- a/gr-qtgui/examples/pyqt_waterfall_f.py
+++ b/gr-qtgui/examples/pyqt_waterfall_f.py
@@ -4,20 +4,8 @@
 #
 # This file is part of GNU Radio
 #
-# GNU Radio 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, or (at your option)
-# any later version.
+# SPDX-License-Identifier: GPL-3.0-or-later
 #
-# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
 #
 
 from __future__ import print_function