diff --git a/gpio/gpio.c b/gpio/gpio.c
index d453327..1cbfb61 100644
--- a/gpio/gpio.c
+++ b/gpio/gpio.c
@@ -5,7 +5,7 @@
  *	Copyright (c) 2012-2018 Gordon Henderson
  ***********************************************************************
  * This file is part of wiringPi:
- *	https://github.com/WiringPi/WiringPi/
+ *	https://github.com/nuncio-bitis/WiringPi/
  *
  *    wiringPi is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU Lesser General Public License as published by
@@ -52,19 +52,19 @@ extern void doQmode      (int argc, char *argv[]);
 #  define	FALSE	(1==2)
 #endif
 
-#define	PI_USB_POWER_CONTROL	38
-#define	I2CDETECT		"i2cdetect"
-#define	MODPROBE		"modprobe"
-#define	RMMOD			"rmmod"
+#define	PI_USB_POWER_CONTROL 38
+#define	I2CDETECT  "i2cdetect"
+#define	MODPROBE   "modprobe"
+#define	RMMOD      "rmmod"
 
+// Intentionally global; also used in readall.c
 int wpMode;
 
-char *usage = "Usage: gpio -v                Show version info\n"
-              "       gpio -h                Show Help\n"
-//              "       gpio -V                Show gpio layout version (1.x)\n"
-              "       gpio[-b|-p|-w] ...    Use bcm-gpio/physical/WiringPi pin numbering scheme.\n"
-              "                             If none specified, BCM GPIO numbering is used by default.\n"
-              "      [-x extension:params][[ -x ...]] ...\n"
+char *usage = "Usage: gpio -v             Show version info\n"
+              "       gpio -h             Show Help\n"
+              "       gpio[-b|-p|-w] ...  Use bcm-gpio/physical/WiringPi pin numbering scheme.\n"
+              "                           If none specified, BCM GPIO numbering is used by default.\n"
+              "       [-x extension:params][[ -x ...]] ...\n"
               "       gpio <mode/read/write/aread/awritewb/pwm/pwmTone/clock> ...\n"
               "       gpio <toggle/blink> <pin>\n"
               "       gpio readall/allreadall\n"
diff --git a/gpio/readall.c b/gpio/readall.c
index 76835ca..f0f613b 100644
--- a/gpio/readall.c
+++ b/gpio/readall.c
@@ -4,7 +4,7 @@
  *	Copyright (c) 2012-2018 Gordon Henderson
  ***********************************************************************
  * This file is part of wiringPi:
- *	https://github.com/WiringPi/WiringPi/
+ *	https://github.com/nuncio-bitis/WiringPi/
  *
  *    wiringPi is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU Lesser General Public License as published by
diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index 22d0e2b..d026b7b 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -9,7 +9,7 @@
  *  the clock section /grr/mutter/
  ***********************************************************************
  * This file is part of wiringPi:
- *    https://github.com/WiringPi/WiringPi
+ *    https://github.com/nuncio-bitis/WiringPi
  *
  *    wiringPi is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU Lesser General Public License as
@@ -296,6 +296,7 @@ static volatile int    pinPass = -1;
 static pthread_mutex_t pinMutex;
 
 // Debugging & Return codes
+// Intentionally global; also used in gpio.c
 int wiringPiDebug       = FALSE;
 int wiringPiReturnCodes = TRUE;
 
diff --git a/wiringPi/wiringPi.h b/wiringPi/wiringPi.h
index 1400313..2f1efc6 100644
--- a/wiringPi/wiringPi.h
+++ b/wiringPi/wiringPi.h
@@ -4,7 +4,7 @@
  *  Copyright (c) 2012-2017 Gordon Henderson
  ***********************************************************************
  * This file is part of wiringPi:
- * https://github.com/WiringPi/WiringPi/
+ * https://github.com/nuncio-bitis/WiringPi/
  *
  * wiringPi is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Lesser General Public License as published by