Require running autogen.sh

README.md

@@ -1,11 +1,24 @@
 ## The Servo Parallel Browser Project
 
-It builds on Linux and OS X and requires the newest rustc you can find
+I currently build on OS X and Linux.
+
+### Prerequisites
+
+On OS X:
+
+    brew install sdl cairo
+
+On Debian-based Linuxes:
+
+    sudo apt-get install sdl cairo
+
+### Building
 
     git clone git://github.com/mozilla/servo.git
     cd servo
     git submodule init
     git submodule update
+    ./autogen.sh
     mkdir build && cd build
     ../configure
     make check && make