treewide: move fixDarwinDylibNames to nativeBuildInputs

This hook runs at build time and depends on executing
install_name_tool from binutils.

pkgs/development/libraries/boost/generic.nix

@@ -145,11 +145,11 @@ stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
-  nativeBuildInputs = [ which ];
+  nativeBuildInputs = [ which ]
+    ++ optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
   depsBuildBuild = [ buildPackages.stdenv.cc ];
   buildInputs = [ expat zlib bzip2 libiconv ]
     ++ optional (stdenv.hostPlatform == stdenv.buildPlatform) icu
-    ++ optional stdenv.isDarwin fixDarwinDylibNames
     ++ optional enablePython python
     ++ optional enableNumpy python.pkgs.numpy;