diff --git a/cabal2nix.cabal b/cabal2nix.cabal
--- a/cabal2nix.cabal
+++ b/cabal2nix.cabal
@@ -1,5 +1,5 @@
 Name:                   cabal2nix
-Version:                1.42
+Version:                1.43
 Copyright:              Peter Simons, Andres Loeh
 License:                BSD3
 License-File:           LICENSE
@@ -32,8 +32,8 @@
   .
   The only required argument is the path to the cabal file. For example:
   .
-  > cabal2nix http://hackage.haskell.org/packages/archive/cabal2nix/1.42/cabal2nix.cabal
-  > cabal2nix cabal://cabal2nix-1.42
+  > cabal2nix http://hackage.haskell.org/packages/archive/cabal2nix/1.43/cabal2nix.cabal
+  > cabal2nix cabal://cabal2nix-1.43
   .
   If the @--sha256@ option has not been specified, cabal2nix calls
   @nix-prefetch-url@ to determine the hash automatically. This causes
diff --git a/src/Cabal2Nix.hs b/src/Cabal2Nix.hs
--- a/src/Cabal2Nix.hs
+++ b/src/Cabal2Nix.hs
@@ -50,6 +50,7 @@
         , "Recognized URI schemes:"
         , ""
         , "  cabal://pkgname-pkgversion       download the specified package from Hackage"
+        , "  cabal://pkgname                  download latest version of the specified package from Hackage"
         , "  http://host/path                 fetch the Cabal file via HTTP"
         , "  file:///local/path               load the Cabal file from the local disk"
         , "  /local/path                      abbreviated version of file URI"
diff --git a/src/Cabal2Nix/PostProcess.hs b/src/Cabal2Nix/PostProcess.hs
--- a/src/Cabal2Nix/PostProcess.hs
+++ b/src/Cabal2Nix/PostProcess.hs
@@ -30,6 +30,7 @@
   | pname == "idris"            = deriv { buildTools = "happy":buildTools }
   | pname == "language-c-quote" = deriv { buildTools = "alex":"happy":buildTools }
   | pname == "leksah-server"    = deriv { buildDepends = "process-leksah":buildDepends }
+  | pname == "llvm-base"        = deriv { extraLibs = "llvm":extraLibs }
   | pname == "multiarg"         = deriv { buildDepends = "utf8String":buildDepends }
   | pname == "OpenAL"           = deriv { extraLibs = "openal":extraLibs }
   | pname == "OpenGL"           = deriv { extraLibs = "mesa":"libX11":extraLibs }