libndtypes: add dev output

pkgs/development/libraries/libndtypes/default.nix

@@ -1,4 +1,5 @@
-{ lib, stdenv
+{ lib
+, stdenv
 , fetchFromGitHub
 }:
 
@@ -6,6 +7,8 @@ stdenv.mkDerivation {
   pname = "libndtypes";
   version = "unstable-2019-08-01";
 
+  outputs = [ "out" "dev" ];
+
   src = fetchFromGitHub {
     owner = "xnd-project";
     repo = "ndtypes";

pkgs/development/python-modules/gumath/default.nix

@@ -39,7 +39,7 @@ buildPythonPackage {
   postPatch = ''
     substituteInPlace setup.py \
       --replace 'add_include_dirs = [".", "libgumath", "ndtypes/python/ndtypes", "xnd/python/xnd"] + INCLUDES' \
-                'add_include_dirs = [".", "${libndtypes}/include", "${libxnd}/include", "${libgumath}/include"]' \
+                'add_include_dirs = [".", "${libndtypes.dev}/include", "${libxnd}/include", "${libgumath}/include"]' \
       --replace 'add_library_dirs = ["libgumath", "ndtypes/libndtypes", "xnd/libxnd"] + LIBS' \
                 'add_library_dirs = ["${libndtypes}/lib", "${libxnd}/lib", "${libgumath}/lib"]' \
       --replace 'add_runtime_library_dirs = ["$ORIGIN"]' \

pkgs/development/python-modules/ndtypes/default.nix

@@ -17,7 +17,7 @@ buildPythonPackage {
   postPatch = ''
     substituteInPlace setup.py \
       --replace 'include_dirs = ["libndtypes"]' \
-                'include_dirs = ["${libndtypes}/include"]' \
+                'include_dirs = ["${libndtypes.dev}/include"]' \
       --replace 'library_dirs = ["libndtypes"]' \
                 'library_dirs = ["${libndtypes}/lib"]' \
       --replace 'runtime_library_dirs = ["$ORIGIN"]' \