diff --git a/doc/README.txt b/doc/README.txt
index 64fc9ce9a..12e58e457 100644
--- a/doc/README.txt
+++ b/doc/README.txt
@@ -46,7 +46,7 @@ Compiling on GNU/Linux:
 -----------------------
 
 Install dependencies. Here's an example for Debian/Ubuntu:
-$ apt-get install libirrlicht-dev cmake libbz2-dev libpng12-dev libjpeg8-dev libxxf86vm-dev libgl1-mesa-dev
+$ apt-get install build-essential libirrlicht-dev cmake libbz2-dev libpng12-dev libjpeg8-dev libxxf86vm-dev libgl1-mesa-dev
 
 Download source, extract (this is the URL to the latest of source repository, which might not work at all times):
 $ wget https://bitbucket.org/celeron55/minetest/get/tip.tar.gz
diff --git a/src/main.cpp b/src/main.cpp
index 92c012a90..28697146f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -111,6 +111,8 @@ Game content:
 	- This can be done in the active blocks I guess.
 	- Lots of stuff can be done in the active blocks.
 	- Uh, is there an active block list somewhere? I think not. Add it.
+- Breaking weak structures
+	- This can probably be accomplished in the same way as grass
 - Player health points
 	- When player dies, throw items on map (needs better item-on-map
 	  implementation)