gtk2 compilation failed

[Alejandro Aragon]

Hello everyone,

I was trying to build pidgin, and when compiling gtk2 I had the  
following error:

i686-apple-darwin9-gcc-4.0.1: /usr/X11/lib/libXrandr.2.0.0.dylib: No  
such file or directory
make[4]: *** [libgdk-x11-2.0.la] Error 1

I'm new to Mac OS so I was wondering why this library is not there. Is  
there an easy way to fix this?

Thank you all,

aa