freeimage: fix build on aarch64-darwin

pkgs/development/libraries/freeimage/default.nix

···
 { lib, stdenv, fetchsvn, darwin, libtiff
 , libpng, zlib, libwebp, libraw, openexr, openjpeg
 , libjpeg, jxrlib, pkg-config
-, fixDarwinDylibNames }:
+, fixDarwinDylibNames, autoSignDarwinBinariesHook }:
 
 stdenv.mkDerivation {
   pname = "freeimage";
···
   ] ++ lib.optionals stdenv.isDarwin [
     darwin.cctools
     fixDarwinDylibNames
+  ] ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
+    autoSignDarwinBinariesHook
   ];
   buildInputs = [ libtiff libtiff.dev_private libpng zlib libwebp libraw openexr openjpeg libjpeg libjpeg.dev_private jxrlib ];
 

pkgs/top-level/all-packages.nix

···
   fplll_20160331 = callPackage ../development/libraries/fplll/20160331.nix {};
 
   freeimage = callPackage ../development/libraries/freeimage {
+    inherit (darwin) autoSignDarwinBinariesHook;
     libraw = libraw_unstable;
   };