From c121349a7bbf8e9c8b30b03661836effbde2b373 Mon Sep 17 00:00:00 2001
From: Gordon Henderson <projects@drogon.net>
Date: Tue, 15 Jan 2013 15:30:26 +0000
Subject: [PATCH] Minor changes to messages being printed from wiringPiSetup()
 Changed built to work marginally better.

---
 build               | 1 +
 wiringPi/wiringPi.c | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/build b/build
index 740b512..9eeb4df 100755
--- a/build
+++ b/build
@@ -26,6 +26,7 @@ else
   echo
   echo "WiringPi library"
   cd wiringPi
+  sudo make uninstall
   make 
   sudo make install
   echo
diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index cfb6705..066f842 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -1166,7 +1166,7 @@ int wiringPiSetup (void)
 
   if (geteuid () != 0)
   {
-    fprintf (stderr, "Must be root to call wiringPiSetup(). (Did you forget sudo?)\n") ;
+    fprintf (stderr, "wiringPi:\n  Must be root to call wiringPiSetup().\n  (Did you forget sudo?)\n") ;
     exit (EXIT_FAILURE) ;
   }
 
@@ -1203,7 +1203,8 @@ int wiringPiSetup (void)
 
   if ((fd = open ("/dev/mem", O_RDWR | O_SYNC) ) < 0)
   {
-    fprintf (stderr, "wiringPiSetup: Unable to open /dev/mem: %s\n", strerror (errno)) ;
+    if (wiringPiDebug)
+      fprintf (stderr, "wiringPiSetup: Unable to open /dev/mem: %s\n", strerror (errno)) ;
     return -1 ;
   }