[root@localhost ~]# wget http://cs.trinity.edu/~aharwell/wallpaper.tar && tar xf wallpaper.tar && cd wallpaper && make
--04:46:11--  http://cs.trinity.edu/~aharwell/wallpaper.tar
           => `wallpaper.tar'
Resolving cs.trinity.edu... 131.194.71.168
Connecting to cs.trinity.edu|131.194.71.168|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 30,720 (30K) [application/x-tar]

100%[====================================>] 30,720       130.12K/s

04:46:12 (129.61 KB/s) - `wallpaper.tar' saved [30720/30720]

compiling : wallpaper.c -> build/libwallpaper.loPackage x11 was not found in the pkg-config search path.
Perhaps you should add the directory containing `x11.pc'
to the PKG_CONFIG_PATH environment variable
No package 'x11' found
Package beryl was not found in the pkg-config search path.
Perhaps you should add the directory containing `beryl.pc'
to the PKG_CONFIG_PATH environment variable
No package 'beryl' found
/bin/sh: libtool: command not found
make: *** [build/libwallpaper.lo] Error 127