Synced to git.drogon.net

build

@@ -1,5 +1,18 @@
 #!/bin/bash
 
+check-make-ok()
+{
+  if [ $? != 0 ]; then
+    echo ""
+    echo "Make Failed..."
+    echo "Please check the messages and fix any problems. If you're still stuck,"
+    echo "then please email all the output and as many details as you can to"
+    echo "  projects@drogon.net"
+    echo ""
+    exit 1
+  fi
+}
+
 if [ x$1 = "xclean" ]; then
   echo Cleaning
   echo
@@ -9,8 +22,10 @@ if [ x$1 = "xclean" ]; then
   make clean
   cd ../examples
   make clean
-  cd ..
-elif [ x$1 = "xuninstall" ]; then
+  exit
+fi
+
+if [ x$1 = "xuninstall" ]; then
   echo Uninstalling
   echo
   echo "WiringPi library"
@@ -21,24 +36,50 @@ elif [ x$1 = "xuninstall" ]; then
   cd ../gpio
   sudo make uninstall
   cd ..
-else
-  echo wiringPi Build script - please wait...
+  exit
+fi
+
+
+  echo "wiringPi Build script"
+  echo "====================="
+  echo
+
+# Check for I2C being installed...
+#	... and if-so, then automatically make the I2C helpers
+
+  if [ -f /usr/include/linux/i2c-dev.h ]; then
+    grep -q i2c_smbus_read_byte /usr/include/linux/i2c-dev.h
+    if [ $? = 0 ]; then
+      target=i2c
+      echo "Building wiringPi with the I2C helper libraries."
+    else
+      target=all
+      echo "The wiringPi I2C helper libraries will not be built."
+    fi
+  fi
+
   echo
   echo "WiringPi library"
   cd wiringPi
-  make 
+  sudo make uninstall
+  make $target
+  check-make-ok
   sudo make install
+  check-make-ok
+
   echo
   echo "GPIO Utility"
   cd ../gpio
   make
+  check-make-ok
   sudo make install
-  echo
-  echo "Examples"
-  cd ../examples
-  make
-  cd ..
-fi
+  check-make-ok
+
+# echo
+# echo "Examples"
+# cd ../examples
+# make
+# cd ..
 
 echo
 echo All Done.