Fix: Cycles lite build failure without Pugixml

CMakeLists.txt

@@ -1277,9 +1277,10 @@ set_and_warn_dependency(WITH_BOOST WITH_OPENVDB        OFF)
 set_and_warn_dependency(WITH_BOOST WITH_QUADRIFLOW     OFF)
 set_and_warn_dependency(WITH_BOOST WITH_USD            OFF)
 if(WITH_CYCLES)
-  set_and_warn_dependency(WITH_BOOST   WITH_CYCLES_OSL   OFF)
-  set_and_warn_dependency(WITH_PUGIXML WITH_CYCLES_OSL   OFF)
-  set_and_warn_dependency(WITH_CYCLES_OSL WITH_CYCLES_TEST_OSL   OFF)
+  set_and_warn_dependency(WITH_BOOST   WITH_CYCLES_OSL          OFF)
+  set_and_warn_dependency(WITH_PUGIXML WITH_CYCLES_OSL          OFF)
+  set_and_warn_dependency(WITH_PUGIXML WITH_CYCLES_STANDALONE   OFF)
+  set_and_warn_dependency(WITH_CYCLES_OSL WITH_CYCLES_TEST_OSL  OFF)
 endif()
 
 set_and_warn_dependency(WITH_TBB WITH_CYCLES            OFF)

intern/cycles/CMakeLists.txt

@@ -386,8 +386,11 @@ if(WITH_CYCLES_DEBUG_NAN)
   add_definitions(-DWITH_CYCLES_DEBUG_NAN)
 endif()
 
-if((NOT OPENIMAGEIO_PUGIXML_FOUND) OR WIN32)
-  add_definitions(-DWITH_SYSTEM_PUGIXML)
+if(WITH_PUGIXML OR OPENIMAGEIO_PUGIXML_FOUND)
+  add_definitions(-DWITH_PUGIXML)
+  if((NOT OPENIMAGEIO_PUGIXML_FOUND) OR WIN32)
+    add_definitions(-DWITH_SYSTEM_PUGIXML)
+  endif()
 endif()
 
 if(CYCLES_STANDALONE_REPOSITORY)

intern/cycles/graph/node_xml.cpp

@@ -2,11 +2,14 @@
  *
  * SPDX-License-Identifier: Apache-2.0 */
 
-#include "graph/node_xml.h"
+#ifdef WITH_PUGIXML
 
-#include "util/foreach.h"
-#include "util/string.h"
-#include "util/transform.h"
+#  include "graph/node_xml.h"
+#  include "graph/node.h"
+
+#  include "util/foreach.h"
+#  include "util/string.h"
+#  include "util/transform.h"
 
 CCL_NAMESPACE_BEGIN
 
@@ -433,3 +436,5 @@ xml_node xml_write_node(Node *node, xml_node xml_root)
 }
 
 CCL_NAMESPACE_END
+
+#endif /* WITH_PUGIXML */

intern/cycles/graph/node_xml.h

@@ -4,14 +4,16 @@
 
 #pragma once
 
-#include "graph/node.h"
+#ifdef WITH_PUGIXML
 
-#include "util/map.h"
-#include "util/string.h"
-#include "util/xml.h"
+#  include "util/map.h"
+#  include "util/param.h"
+#  include "util/xml.h"
 
 CCL_NAMESPACE_BEGIN
 
+struct Node;
+
 struct XMLReader {
   map<ustring, Node *> node_map;
 };
@@ -20,3 +22,5 @@ void xml_read_node(XMLReader &reader, Node *node, xml_node xml_node);
 xml_node xml_write_node(Node *node, xml_node xml_root);
 
 CCL_NAMESPACE_END
+
+#endif /* WITH_PUGIXML */

intern/cycles/util/xml.h

@@ -2,22 +2,21 @@
  *
  * SPDX-License-Identifier: Apache-2.0 */
 
-#ifndef __UTIL_XML_H__
-#define __UTIL_XML_H__
+#pragma once
+
+#ifdef WITH_PUGIXML
 
 /* PugiXML is used for XML parsing. */
 
-#include <pugixml.hpp>
+#  include <pugixml.hpp>
 
 CCL_NAMESPACE_BEGIN
 
-OIIO_NAMESPACE_USING
-
-#ifdef WITH_SYSTEM_PUGIXML
-#  define PUGIXML_NAMESPACE pugi
-#else
-#  define PUGIXML_NAMESPACE OIIO_NAMESPACE::pugi
-#endif
+#  ifdef WITH_SYSTEM_PUGIXML
+#    define PUGIXML_NAMESPACE pugi
+#  else
+#    define PUGIXML_NAMESPACE OIIO_NAMESPACE::pugi
+#  endif
 
 using PUGIXML_NAMESPACE::xml_attribute;
 using PUGIXML_NAMESPACE::xml_document;
@@ -26,4 +25,4 @@ using PUGIXML_NAMESPACE::xml_parse_result;
 
 CCL_NAMESPACE_END
 
-#endif /* __UTIL_XML_H__ */
+#endif