Switch from GPLv2 to GPLv2+

Signed-off-by: Keith Packard <keithp@keithp.com>

11 files changed, 22 insertions, 11 deletions

diff --git a/src/attiny/ao_arch.h b/src/attiny/ao_arch.h
index 6ca12af6..3a34f417 100644
--- a/src/attiny/ao_arch.h
+++ b/src/attiny/ao_arch.h
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_arch_funcs.h b/src/attiny/ao_arch_funcs.h
index d4584a9f..0b67a407 100644
--- a/src/attiny/ao_arch_funcs.h
+++ b/src/attiny/ao_arch_funcs.h
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_async.c b/src/attiny/ao_async.c
index f64f7bde..f7a29d3b 100644
--- a/src/attiny/ao_async.c
+++ b/src/attiny/ao_async.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_async.h b/src/attiny/ao_async.h
index 1b239712..e3ce97f3 100644
--- a/src/attiny/ao_async.h
+++ b/src/attiny/ao_async.h
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_clock.c b/src/attiny/ao_clock.c
index 22de8e99..d722d568 100644
--- a/src/attiny/ao_clock.c
+++ b/src/attiny/ao_clock.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_eeprom_tiny.c b/src/attiny/ao_eeprom_tiny.c
index 83014183..be3c965a 100644
--- a/src/attiny/ao_eeprom_tiny.c
+++ b/src/attiny/ao_eeprom_tiny.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_exti.c b/src/attiny/ao_exti.c
index 0ca10ca4..8ae1c4a0 100644
--- a/src/attiny/ao_exti.c
+++ b/src/attiny/ao_exti.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_exti.h b/src/attiny/ao_exti.h
index 85bb2fba..8b22458e 100644
--- a/src/attiny/ao_exti.h
+++ b/src/attiny/ao_exti.h
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_i2c_attiny.c b/src/attiny/ao_i2c_attiny.c
index 2ee44fd2..f29ed6a9 100644
--- a/src/attiny/ao_i2c_attiny.c
+++ b/src/attiny/ao_i2c_attiny.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_led.c b/src/attiny/ao_led.c
index 27bbea69..5f53129e 100644
--- a/src/attiny/ao_led.c
+++ b/src/attiny/ao_led.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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
diff --git a/src/attiny/ao_spi_attiny.c b/src/attiny/ao_spi_attiny.c
index 3c4afb02..f63eb651 100644
--- a/src/attiny/ao_spi_attiny.c
+++ b/src/attiny/ao_spi_attiny.c
@@ -3,7 +3,8 @@
  *
  * 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; version 2 of the License.
+ * 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