Add instructions for building/installation.

git-svn-id: svn+ssh://oldsvn/home/mlalondesvn/svn/cral@55 3ee9b42a-b53c-0410-a25e-f0b6218d5d5b

branches/follower/wiz810mj/README.txt

@@ -1,5 +1,30 @@
+
+WIZnet W5100 / WIZ810MJ Hardwired TCP/IP Ethernet Chip/Module Driver for Arduino
+================================================================================
+
 For more information see:
 
   <http://code.rancidbacon.com/LearningAboutArduinoWIZ810MJ>
 
 Based on the W5100 driver from WIZnet.
+
+
+Installation and Building
+-------------------------
+
+Arduino will compile the library automatically if you put it in the
+library directory of the Arduino application.
+
+For Arduino version 0010 the library directory location is:
+
+  <ARDUINO>/hardware/libraries/
+
+For Ardino version 0009 the library directory location was:
+
+  <ARDUINO>/lib/targets/libraries/
+
+If you want to compile the library manually you can use the following:
+
+  avr-gcc -mmcu=atmega168 -Wall -Os -fsigned-char -combine -c socket.c w5100.c -o wiz810mj.o
+
+  avr-strip --strip-debug --strip-unneeded -X -x *.o