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diff --git a/libs/assimp/code/AssetLib/IFC/IFCLoader.h b/libs/assimp/code/AssetLib/IFC/IFCLoader.h
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+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  IFC.h
+ *  @brief Declaration of the Industry Foundation Classes (IFC) loader main class
+ */
+#ifndef INCLUDED_AI_IFC_LOADER_H
+#define INCLUDED_AI_IFC_LOADER_H
+
+#include <assimp/BaseImporter.h>
+#include <assimp/LogAux.h>
+
+namespace Assimp {
+
+// TinyFormatter.h
+namespace Formatter {
+
+template <typename T, typename TR, typename A>
+class basic_formatter;
+typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
+
+} // namespace Formatter
+
+namespace STEP {
+
+class DB;
+
+}
+
+// -------------------------------------------------------------------------------------------
+/** Load the IFC format, which is an open specification to describe building and construction
+    industry data.
+
+ See http://en.wikipedia.org/wiki/Industry_Foundation_Classes
+*/
+// -------------------------------------------------------------------------------------------
+class IFCImporter : public BaseImporter, public LogFunctions<IFCImporter> {
+public:
+    // loader settings, publicly accessible via their corresponding AI_CONFIG constants
+    struct Settings {
+        Settings() :
+                skipSpaceRepresentations(), useCustomTriangulation(), skipAnnotations(), conicSamplingAngle(10.f), cylindricalTessellation(32) {}
+
+        bool skipSpaceRepresentations;
+        bool useCustomTriangulation;
+        bool skipAnnotations;
+        float conicSamplingAngle;
+        int cylindricalTessellation;
+    };
+
+    IFCImporter();
+    ~IFCImporter() override;
+
+    // --------------------
+    bool CanRead(const std::string &pFile,
+            IOSystem *pIOHandler,
+            bool checkSig) const override;
+
+protected:
+    // --------------------
+    const aiImporterDesc *GetInfo() const override;
+
+    // --------------------
+    void SetupProperties(const Importer *pImp) override;
+
+    // --------------------
+    void InternReadFile(const std::string &pFile,
+            aiScene *pScene,
+            IOSystem *pIOHandler) override;
+
+private:
+    Settings settings;
+
+}; // !class IFCImporter
+
+} // end of namespace Assimp
+#endif // !INCLUDED_AI_IFC_LOADER_H