python3.pkgs.tables: fix build against hdf5

In 6cbf0b4bd2 the package splitted
of header files, which broke this build as a result.

cc @ttuegel

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

@@ -1,6 +1,8 @@
 { stdenv, fetchPypi, python, buildPythonPackage
 , cython, bzip2, lzo, numpy, numexpr, hdf5, six, c-blosc, mock }:
 
+with stdenv.lib;
+
 buildPythonPackage rec {
   version = "3.5.2";
   pname = "tables";
@@ -15,12 +17,12 @@ buildPythonPackage rec {
 
   # The setup script complains about missing run-paths, but they are
   # actually set.
-  setupPyBuildFlags =
-    [ "--hdf5=${hdf5}"
-      "--lzo=${lzo}"
-      "--bzip2=${bzip2.dev}"
-      "--blosc=${c-blosc}"
-    ];
+  setupPyBuildFlags = [
+    "--hdf5=${getDev hdf5}"
+    "--lzo=${getDev lzo}"
+    "--bzip2=${getDev bzip2}"
+    "--blosc=${getDev c-blosc}"
+  ];
 
   # Run the test suite.
   # It requires the build path to be in the python search path.