openscad: unpin cgal_4; fix darwin

pkgs/applications/graphics/openscad/default.nix

@@ -14,7 +14,7 @@
   libGL,
   glew,
   opencsg,
-  cgal_4,
+  cgal,
   mpfr,
   gmp,
   glib,
@@ -62,11 +62,32 @@ mkDerivation rec {
       url = "https://github.com/openscad/openscad/commit/84addf3c1efbd51d8ff424b7da276400bbfa1a4b.patch";
       sha256 = "sha256-KNEVu10E2d4G2x+FJcuHo2tjD8ygMRuhUcW9NbN98bM=";
     })
+    (fetchpatch {
+      # needed for cgal_5
+      name = "cgalutils-tess.cc-cgal-5.patch";
+      url = "https://github.com/openscad/openscad/commit/3a81c1fb9b663ebbedd6eb044e7276357b1f30a1.patch";
+      hash = "sha256-JdBznXkewx5ybY92Ss0h7UnMZ7d3IQbFRaDCDjb1bRA=";
+    })
+    (fetchpatch {
+      # needed for cgal_5
+      name = "cgalutils-tess.cc-cgal-5_4.patch";
+      url = "https://github.com/openscad/openscad/commit/71f2831c0484c3f35cbf44e1d1dc2c857384100b.patch";
+      hash = "sha256-Fu8dnjNIwZKCI6ukOeHYK8NiJwoA0XtqT8dg8sVevG8=";
+    })
+    (fetchpatch {
+      # needed for cgal_5. Removes dead code
+      name = "cgalutils-polyhedron.cc-cgal-5_3.patch";
+      url = "https://github.com/openscad/openscad/commit/cc49ad8dac24309f5452d5dea9abd406615a52d9.patch";
+      hash = "sha256-B3i+o6lR5osRcVXTimDZUFQmm12JhmbFgG9UwOPebF4=";
+    })
   ];
 
   postPatch = ''
     substituteInPlace src/FileModule.cc \
       --replace-fail 'fs::is_regular' 'fs::is_regular_file'
+
+    substituteInPlace src/openscad.cc \
+      --replace-fail 'boost::join' 'boost::algorithm::join'
   '';
 
   nativeBuildInputs = [
@@ -84,7 +105,7 @@ mkDerivation rec {
       boost
       glew
       opencsg
-      cgal_4
+      cgal
       mpfr
       gmp
       glib