diff --git a/dtool/metalibs/dtoolconfig/pydtool.cxx b/dtool/metalibs/dtoolconfig/pydtool.cxx
index 3350380ba4..0293df157f 100644
--- a/dtool/metalibs/dtoolconfig/pydtool.cxx
+++ b/dtool/metalibs/dtoolconfig/pydtool.cxx
@@ -60,6 +60,8 @@ static PyObject *_inP07ytISgV(PyObject *self, PyObject *args);
 static PyObject *_inP07ytH3bx(PyObject *self, PyObject *args);
 static PyObject *_inP07ytzeUk(PyObject *self, PyObject *args);
 static PyObject *_inP07ytUeI5(PyObject *self, PyObject *args);
+static PyObject *_inP07ytbmxJ(PyObject *self, PyObject *args);
+static PyObject *_inP07ytY8Lc(PyObject *self, PyObject *args);
 static PyObject *_inP07ytJAAI(PyObject *self, PyObject *args);
 static PyObject *_inP07yt0UXw(PyObject *self, PyObject *args);
 static PyObject *_inP07ytuSvx(PyObject *self, PyObject *args);
@@ -95,6 +97,8 @@ static PyObject *_inP07ytiytI(PyObject *self, PyObject *args);
 static PyObject *_inP07ytZc07(PyObject *self, PyObject *args);
 static PyObject *_inP07ytfaH0(PyObject *self, PyObject *args);
 static PyObject *_inP07ytGB9D(PyObject *self, PyObject *args);
+static PyObject *_inP07ytrppS(PyObject *self, PyObject *args);
+static PyObject *_inP07ytO50x(PyObject *self, PyObject *args);
 static PyObject *_inP07ytsxxs(PyObject *self, PyObject *args);
 static PyObject *_inP07ytMT0z(PyObject *self, PyObject *args);
 static PyObject *_inP07ytiW3v(PyObject *self, PyObject *args);
@@ -126,6 +130,8 @@ static PyObject *_inP07ytDyRd(PyObject *self, PyObject *args);
 static PyObject *_inP07ytMnKa(PyObject *self, PyObject *args);
 static PyObject *_inP07ytRtji(PyObject *self, PyObject *args);
 static PyObject *_inP07ytCnbQ(PyObject *self, PyObject *args);
+static PyObject *_inP07ytoxqc(PyObject *self, PyObject *args);
+static PyObject *_inP07ytZQIS(PyObject *self, PyObject *args);
 static PyObject *_inP07ytdUVN(PyObject *self, PyObject *args);
 static PyObject *_inP07ytZtNk(PyObject *self, PyObject *args);
 static PyObject *_inP07ytihbt(PyObject *self, PyObject *args);
@@ -828,6 +834,34 @@ _inP07ytUeI5(PyObject *, PyObject *args) {
   return nullptr;
 }
 
+/*
+ * Python simple wrapper for
+ * bool interrogate_function_is_unary_op(FunctionIndex function)
+ */
+static PyObject *
+_inP07ytbmxJ(PyObject *, PyObject *args) {
+  int param0;
+  if (PyArg_ParseTuple(args, "i", &param0)) {
+    bool return_value = (::interrogate_function_is_unary_op)((FunctionIndex)param0);
+    return PyBool_FromLong(return_value);
+  }
+  return nullptr;
+}
+
+/*
+ * Python simple wrapper for
+ * bool interrogate_function_is_operator_typecast(FunctionIndex function)
+ */
+static PyObject *
+_inP07ytY8Lc(PyObject *, PyObject *args) {
+  int param0;
+  if (PyArg_ParseTuple(args, "i", &param0)) {
+    bool return_value = (::interrogate_function_is_operator_typecast)((FunctionIndex)param0);
+    return PyBool_FromLong(return_value);
+  }
+  return nullptr;
+}
+
 /*
  * Python simple wrapper for
  * bool interrogate_function_is_constructor(FunctionIndex function)
@@ -1405,6 +1439,42 @@ _inP07ytGB9D(PyObject *, PyObject *args) {
   return nullptr;
 }
 
+/*
+ * Python simple wrapper for
+ * FunctionIndex interrogate_make_seq_num_getter(MakeSeqIndex make_seq)
+ */
+static PyObject *
+_inP07ytrppS(PyObject *, PyObject *args) {
+  int param0;
+  if (PyArg_ParseTuple(args, "i", &param0)) {
+    FunctionIndex return_value = (::interrogate_make_seq_num_getter)((MakeSeqIndex)param0);
+#if PY_MAJOR_VERSION >= 3
+    return PyLong_FromLong(return_value);
+#else
+    return PyInt_FromLong(return_value);
+#endif
+  }
+  return nullptr;
+}
+
+/*
+ * Python simple wrapper for
+ * FunctionIndex interrogate_make_seq_element_getter(MakeSeqIndex make_seq)
+ */
+static PyObject *
+_inP07ytO50x(PyObject *, PyObject *args) {
+  int param0;
+  if (PyArg_ParseTuple(args, "i", &param0)) {
+    FunctionIndex return_value = (::interrogate_make_seq_element_getter)((MakeSeqIndex)param0);
+#if PY_MAJOR_VERSION >= 3
+    return PyLong_FromLong(return_value);
+#else
+    return PyInt_FromLong(return_value);
+#endif
+  }
+  return nullptr;
+}
+
 /*
  * Python simple wrapper for
  * int interrogate_number_of_global_types(void)
@@ -1901,6 +1971,38 @@ _inP07ytCnbQ(PyObject *, PyObject *args) {
   return nullptr;
 }
 
+/*
+ * Python simple wrapper for
+ * bool interrogate_type_is_array(TypeIndex type)
+ */
+static PyObject *
+_inP07ytoxqc(PyObject *, PyObject *args) {
+  int param0;
+  if (PyArg_ParseTuple(args, "i", &param0)) {
+    bool return_value = (::interrogate_type_is_array)((TypeIndex)param0);
+    return PyBool_FromLong(return_value);
+  }
+  return nullptr;
+}
+
+/*
+ * Python simple wrapper for
+ * int interrogate_type_array_size(TypeIndex type)
+ */
+static PyObject *
+_inP07ytZQIS(PyObject *, PyObject *args) {
+  int param0;
+  if (PyArg_ParseTuple(args, "i", &param0)) {
+    int return_value = (::interrogate_type_array_size)((TypeIndex)param0);
+#if PY_MAJOR_VERSION >= 3
+    return PyLong_FromLong(return_value);
+#else
+    return PyInt_FromLong(return_value);
+#endif
+  }
+  return nullptr;
+}
+
 /*
  * Python simple wrapper for
  * bool interrogate_type_is_enum(TypeIndex type)
@@ -2565,6 +2667,8 @@ static PyMethodDef python_simple_funcs[] = {
   { "interrogate_function_prototype", &_inP07ytH3bx, METH_VARARGS, nullptr },
   { "interrogate_function_is_method", &_inP07ytzeUk, METH_VARARGS, nullptr },
   { "interrogate_function_class", &_inP07ytUeI5, METH_VARARGS, nullptr },
+  { "interrogate_function_is_unary_op", &_inP07ytbmxJ, METH_VARARGS, nullptr },
+  { "interrogate_function_is_operator_typecast", &_inP07ytY8Lc, METH_VARARGS, nullptr },
   { "interrogate_function_is_constructor", &_inP07ytJAAI, METH_VARARGS, nullptr },
   { "interrogate_function_is_destructor", &_inP07yt0UXw, METH_VARARGS, nullptr },
   { "interrogate_function_has_module_name", &_inP07ytuSvx, METH_VARARGS, nullptr },
@@ -2600,6 +2704,8 @@ static PyMethodDef python_simple_funcs[] = {
   { "interrogate_make_seq_comment", &_inP07ytZc07, METH_VARARGS, nullptr },
   { "interrogate_make_seq_num_name", &_inP07ytfaH0, METH_VARARGS, nullptr },
   { "interrogate_make_seq_element_name", &_inP07ytGB9D, METH_VARARGS, nullptr },
+  { "interrogate_make_seq_num_getter", &_inP07ytrppS, METH_VARARGS, nullptr },
+  { "interrogate_make_seq_element_getter", &_inP07ytO50x, METH_VARARGS, nullptr },
   { "interrogate_number_of_global_types", &_inP07ytsxxs, METH_VARARGS, nullptr },
   { "interrogate_get_global_type", &_inP07ytMT0z, METH_VARARGS, nullptr },
   { "interrogate_number_of_types", &_inP07ytiW3v, METH_VARARGS, nullptr },
@@ -2631,6 +2737,8 @@ static PyMethodDef python_simple_funcs[] = {
   { "interrogate_type_is_const", &_inP07ytMnKa, METH_VARARGS, nullptr },
   { "interrogate_type_is_typedef", &_inP07ytRtji, METH_VARARGS, nullptr },
   { "interrogate_type_wrapped_type", &_inP07ytCnbQ, METH_VARARGS, nullptr },
+  { "interrogate_type_is_array", &_inP07ytoxqc, METH_VARARGS, nullptr },
+  { "interrogate_type_array_size", &_inP07ytZQIS, METH_VARARGS, nullptr },
   { "interrogate_type_is_enum", &_inP07ytdUVN, METH_VARARGS, nullptr },
   { "interrogate_type_is_scoped_enum", &_inP07ytZtNk, METH_VARARGS, nullptr },
   { "interrogate_type_number_of_enum_values", &_inP07ytihbt, METH_VARARGS, nullptr },
diff --git a/dtool/src/interrogatedb/interrogate_interface.cxx b/dtool/src/interrogatedb/interrogate_interface.cxx
index 38f03bad11..d7f4ce58dd 100644
--- a/dtool/src/interrogatedb/interrogate_interface.cxx
+++ b/dtool/src/interrogatedb/interrogate_interface.cxx
@@ -266,6 +266,19 @@ interrogate_function_class(FunctionIndex function) {
   return InterrogateDatabase::get_ptr()->get_function(function).get_class();
 }
 
+bool
+interrogate_function_is_unary_op(FunctionIndex function) {
+  // cerr << "interrogate_function_is_unary_op(" << function << ")\n";
+  return InterrogateDatabase::get_ptr()->get_function(function).is_unary_op();
+}
+
+bool
+interrogate_function_is_operator_typecast(FunctionIndex function) {
+  // cerr << "interrogate_function_is_operator_typecast(" << function <<
+  // ")\n";
+  return InterrogateDatabase::get_ptr()->get_function(function).is_operator_typecast();
+}
+
 bool
 interrogate_function_is_constructor(FunctionIndex function) {
   // cerr << "interrogate_function_is_constructor(" << function << ")\n";
@@ -697,6 +710,18 @@ interrogate_type_wrapped_type(TypeIndex type) {
   return InterrogateDatabase::get_ptr()->get_type(type).get_wrapped_type();
 }
 
+bool
+interrogate_type_is_array(TypeIndex type) {
+  // cerr << "interrogate_type_is_array(" << type << ")\n";
+  return InterrogateDatabase::get_ptr()->get_type(type).is_array();
+}
+
+int
+interrogate_type_array_size(TypeIndex type) {
+  // cerr << "interrogate_type_array_size(" << type << ")\n";
+  return InterrogateDatabase::get_ptr()->get_type(type).get_array_size();
+}
+
 bool
 interrogate_type_is_enum(TypeIndex type) {
   // cerr << "interrogate_type_is_enum(" << type << ")\n";
diff --git a/dtool/src/interrogatedb/interrogate_interface.h b/dtool/src/interrogatedb/interrogate_interface.h
index fa44a00f2c..a44f9fef92 100644
--- a/dtool/src/interrogatedb/interrogate_interface.h
+++ b/dtool/src/interrogatedb/interrogate_interface.h
@@ -210,6 +210,8 @@ EXPCL_INTERROGATEDB const char *interrogate_function_prototype(FunctionIndex fun
 // if the function is a class method.
 EXPCL_INTERROGATEDB bool interrogate_function_is_method(FunctionIndex function);
 EXPCL_INTERROGATEDB TypeIndex interrogate_function_class(FunctionIndex function);
+EXPCL_INTERROGATEDB bool interrogate_function_is_unary_op(FunctionIndex function);
+EXPCL_INTERROGATEDB bool interrogate_function_is_operator_typecast(FunctionIndex function);
 EXPCL_INTERROGATEDB bool interrogate_function_is_constructor(FunctionIndex function);
 EXPCL_INTERROGATEDB bool interrogate_function_is_destructor(FunctionIndex function);
 
@@ -424,6 +426,10 @@ EXPCL_INTERROGATEDB bool interrogate_type_is_const(TypeIndex type);
 EXPCL_INTERROGATEDB bool interrogate_type_is_typedef(TypeIndex type);
 EXPCL_INTERROGATEDB TypeIndex interrogate_type_wrapped_type(TypeIndex type);
 
+// If interrogate_type_is_array() returns true, this is an array type.
+EXPCL_INTERROGATEDB bool interrogate_type_is_array(TypeIndex type);
+EXPCL_INTERROGATEDB int interrogate_type_array_size(TypeIndex type);
+
 // If interrogate_type_is_enum() returns true, this is an enumerated type,
 // which means it may take any one of a number of named integer values.
 EXPCL_INTERROGATEDB bool interrogate_type_is_enum(TypeIndex type);
diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index 1a086196fb..c1d921cf0c 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -6118,7 +6118,7 @@ if PkgSkip("PYTHON") == 0:
 
     if GetTarget() == 'linux' or GetTarget() == 'freebsd':
         # Setup rpath so libs can be found in the same directory as the deployed game
-        LibName('DEPLOYSTUB', "-Wl,-rpath,\\$ORIGIN")
+        LibName('DEPLOYSTUB', "-Wl,--disable-new-dtags,-rpath,\\$ORIGIN")
         LibName('DEPLOYSTUB', "-Wl,-z,origin")
         LibName('DEPLOYSTUB', "-rdynamic")
 
diff --git a/panda/src/display/config_display.cxx b/panda/src/display/config_display.cxx
index 093069a2b5..1a5f975215 100644
--- a/panda/src/display/config_display.cxx
+++ b/panda/src/display/config_display.cxx
@@ -475,6 +475,12 @@ ConfigVariableInt shadow_depth_bits
  PRC_DESC("The minimum number of depth buffer bits requested when rendering "
           "shadow maps.  Set this to 32 for more depth resolution in shadow "
           "maps."));
+ConfigVariableBool shadow_cube_map_filter
+("shadow-cube-map-filter", false,
+ PRC_DESC("If true, Panda enables hardware depth map comparison mode for "
+          "point lights, if supported.  If false, does not.  Keep this set to "
+          "false if you want the shader generator to work correctly for point "
+          "light shadows."));
 
 ConfigVariableColor background_color
 ("background-color", "0.41 0.41 0.41 0.0",
diff --git a/panda/src/display/config_display.h b/panda/src/display/config_display.h
index 8560251f1b..82cf8ea2e7 100644
--- a/panda/src/display/config_display.h
+++ b/panda/src/display/config_display.h
@@ -105,6 +105,7 @@ extern EXPCL_PANDA_DISPLAY ConfigVariableInt accum_bits;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt multisamples;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt back_buffers;
 extern EXPCL_PANDA_DISPLAY ConfigVariableInt shadow_depth_bits;
+extern EXPCL_PANDA_DISPLAY ConfigVariableBool shadow_cube_map_filter;
 
 extern EXPCL_PANDA_DISPLAY ConfigVariableDouble pixel_zoom;
 
diff --git a/panda/src/display/graphicsStateGuardian.cxx b/panda/src/display/graphicsStateGuardian.cxx
index 89d4e7b73f..6f23741a15 100644
--- a/panda/src/display/graphicsStateGuardian.cxx
+++ b/panda/src/display/graphicsStateGuardian.cxx
@@ -3549,8 +3549,15 @@ get_dummy_shadow_map(Texture::TextureType texture_type) const {
       dummy_cube->setup_cube_map(1, Texture::T_unsigned_byte, Texture::F_depth_component);
       dummy_cube->set_clear_color(1);
       // Note: cube map shadow filtering doesn't seem to work in Cg.
-      dummy_cube->set_minfilter(SamplerState::FT_linear);
-      dummy_cube->set_magfilter(SamplerState::FT_linear);
+      // That is why it is currently disabled by default, but it can be
+      // overridden in Config.prc for apps that have custom GLSL shaders.
+      if (shadow_cube_map_filter && get_supports_shadow_filter()) {
+        dummy_cube->set_minfilter(SamplerState::FT_shadow);
+        dummy_cube->set_magfilter(SamplerState::FT_shadow);
+      } else {
+        dummy_cube->set_minfilter(SamplerState::FT_linear);
+        dummy_cube->set_magfilter(SamplerState::FT_linear);
+      }
     }
     return dummy_cube;
   }
diff --git a/panda/src/ffmpeg/ffmpegAudio.h b/panda/src/ffmpeg/ffmpegAudio.h
index 6559f59ff5..fe22f93c23 100644
--- a/panda/src/ffmpeg/ffmpegAudio.h
+++ b/panda/src/ffmpeg/ffmpegAudio.h
@@ -38,7 +38,7 @@ public:
     return _type_handle;
   }
   static void init_type() {
-    TypedWritableReferenceCount::init_type();
+    MovieAudio::init_type();
     register_type(_type_handle, "FfmpegAudio",
                   MovieAudio::get_class_type());
   }
diff --git a/pandatool/src/deploy-stub/deploy-stub.c b/pandatool/src/deploy-stub/deploy-stub.c
index f1b5e10852..3d3ba9c9c1 100644
--- a/pandatool/src/deploy-stub/deploy-stub.c
+++ b/pandatool/src/deploy-stub/deploy-stub.c
@@ -388,6 +388,10 @@ int Py_FrozenMain(int argc, char **argv)
     Py_NoSiteFlag = 0;
     Py_NoUserSiteDirectory = 1;
 
+#if PY_VERSION_HEX >= 0x03020000
+    Py_OptimizeFlag = 2;
+#endif
+
 #ifndef NDEBUG
     if ((p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
         inspect = 1;