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diff --git a/source/blender/alembic/intern/abc_util.h b/source/blender/alembic/intern/abc_util.h
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+++ b/source/blender/alembic/intern/abc_util.h
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+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Esteban Tovagliari, Cedric Paille, Kevin Dietrich
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __ABC_UTIL_H__
+#define __ABC_UTIL_H__
+
+#include <Alembic/Abc/All.h>
+#include <Alembic/AbcGeom/All.h>
+
+#ifdef _MSC_VER
+#  define ABC_INLINE static __forceinline
+#else
+#  define ABC_INLINE static inline
+#endif
+
+using Alembic::Abc::chrono_t;
+
+class ImportSettings;
+
+struct ID;
+struct Object;
+
+std::string get_id_name(ID *id);
+std::string get_id_name(Object *ob);
+std::string get_object_dag_path_name(Object *ob, Object *dupli_parent);
+
+bool object_selected(Object *ob);
+bool parent_selected(Object *ob);
+
+Imath::M44d convert_matrix(float mat[4][4]);
+void create_transform_matrix(float r_mat[4][4]);
+void create_transform_matrix(Object *obj, float transform_mat[4][4]);
+
+void split(const std::string &s, const char delim, std::vector<std::string> &tokens);
+
+template<class TContainer>
+bool begins_with(const TContainer &input, const TContainer &match)
+{
+	return input.size() >= match.size()
+	        && std::equal(match.begin(), match.end(), input.begin());
+}
+
+void create_input_transform(const Alembic::AbcGeom::ISampleSelector &sample_sel,
+                            const Alembic::AbcGeom::IXform &ixform, Object *ob,
+                            float r_mat[4][4], float scale, bool has_alembic_parent = false);
+
+template <typename Schema>
+void get_min_max_time(const Schema &schema, chrono_t &min, chrono_t &max)
+{
+	const Alembic::Abc::TimeSamplingPtr &time_samp = schema.getTimeSampling();
+
+	if (!schema.isConstant()) {
+		const size_t num_samps = schema.getNumSamples();
+
+		if (num_samps > 0) {
+			const chrono_t min_time = time_samp->getSampleTime(0);
+			min = std::min(min, min_time);
+
+			const chrono_t max_time = time_samp->getSampleTime(num_samps - 1);
+			max = std::max(max, max_time);
+		}
+	}
+}
+
+bool has_property(const Alembic::Abc::ICompoundProperty &prop, const std::string &name);
+
+/* ************************** */
+
+/* TODO(kevin): for now keeping these transformations hardcoded to make sure
+ * everything works properly, and also because Alembic is almost exclusively
+ * used in Y-up software, but eventually they'll be set by the user in the UI
+ * like other importers/exporters do, to support other axis. */
+
+/* Copy from Y-up to Z-up. */
+
+ABC_INLINE void copy_yup_zup(float zup[3], const float yup[3])
+{
+	zup[0] = yup[0];
+	zup[1] = -yup[2];
+	zup[2] = yup[1];
+}
+
+ABC_INLINE void copy_yup_zup(short zup[3], const short yup[3])
+{
+	zup[0] = yup[0];
+	zup[1] = -yup[2];
+	zup[2] = yup[1];
+}
+
+/* Copy from Z-up to Y-up. */
+
+ABC_INLINE void copy_zup_yup(float yup[3], const float zup[3])
+{
+	yup[0] = zup[0];
+	yup[1] = zup[2];
+	yup[2] = -zup[1];
+}
+
+ABC_INLINE void copy_zup_yup(short yup[3], const short zup[3])
+{
+	yup[0] = zup[0];
+	yup[1] = zup[2];
+	yup[2] = -zup[1];
+}
+
+#endif  /* __ABC_UTIL_H__ */