* Don't use toString here - it causes the path of source file   (e.g. /home/foo/nixpkgs/.../glx-patch-0.6.2.patch) to be   substituted, which is clearly impure.  I noticed this because I was   getting different derivations for Compiz when running as root   vs. another user.
* Don't use toString here - it causes the path of source file
  (e.g. /home/foo/nixpkgs/.../glx-patch-0.6.2.patch) to be
  substituted, which is clearly impure.  I noticed this because I was
  getting different derivations for Compiz when running as root
  vs. another user.

svn path=/nixpkgs/trunk/; revision=12903

SymbiFlow/nixpkgs,NixOS/nixpkgs,triton/triton,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,triton/triton,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,triton/triton,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,triton/triton,NixOS/nixpkgs,triton/triton,NixOS/nixpkgs,triton/triton,SymbiFlow/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,triton/triton,triton/triton,SymbiFlow/nixpkgs,NixOS/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs,SymbiFlow/nixpkgs,NixOS/nixpkgs