Merge branch 'master' into staging

doc/languages-frameworks/haskell.md

@@ -740,7 +740,7 @@ to the `stack.yaml` like the following:
       enable: true
 	  packages: [ zlib ]
 
-Stack's Nix support knows to add `${zlib}/lib` and `${zlib}/include` as an
+Stack's Nix support knows to add `${zlib.out}/lib` and `${zlib.dev}/include` as an
 `--extra-lib-dirs` and `extra-include-dirs`, respectively. Alternatively, you
 can achieve the same effect by hand. First of all, run
 

doc/languages-frameworks/python.md

@@ -291,8 +291,8 @@ pyfftw = buildPythonPackage rec {
   # Tests cannot import pyfftw. pyfftw works fine though.
   doCheck = false;
 
-  LDFLAGS="-L${pkgs.fftw}/lib -L${pkgs.fftwFloat}/lib -L${pkgs.fftwLongDouble}/lib"
-  CFLAGS="-I${pkgs.fftw}/include -I${pkgs.fftwFloat}/include -I${pkgs.fftwLongDouble}/include"
+  LDFLAGS="-L${pkgs.fftw.dev}/lib -L${pkgs.fftwFloat.out}/lib -L${pkgs.fftwLongDouble.out}/lib"
+  CFLAGS="-I${pkgs.fftw.dev}/include -I${pkgs.fftwFloat.dev}/include -I${pkgs.fftwLongDouble.dev}/include"
   '';
 
   meta = {