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+/*
+ * Copyright © 2009 Christian Persch
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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.
+ */
+
+#ifndef EV_VERSION_H
+#define EV_VERSION_H
+
+/**
+ * SECTION:ev-version
+ * @short_description: Library version checks
+ *
+ * These macros enable compile time checks of the library version.
+ */
+
+/**
+ * EV_MAJOR_VERSION:
+ *
+ * The major version number of the EV library
+ * (e.g. in version 3.1.4 this is 3).
+ */
+
+#define EV_MAJOR_VERSION (@EV_MAJOR_VERSION@)
+
+/**
+ * EV_MINOR_VERSION:
+ *
+ * The minor version number of the EV library
+ * (e.g. in version 3.1.4 this is 1).
+ */
+#define EV_MINOR_VERSION (@EV_MINOR_VERSION@)
+
+/**
+ * EV_MICRO_VERSION:
+ *
+ * The micro version number of the EV library
+ * (e.g. in version 3.1.4 this is 4).
+ */
+#define EV_MICRO_VERSION (@EV_MICRO_VERSION@)
+
+/**
+ * EV_CHECK_VERSION:
+ * @major: required major version
+ * @minor: required minor version
+ * @micro: required micro version
+ *
+ * Macro to check the library version at compile time.
+ * It returns <literal>1</literal> if the version of EV is greater or
+ * equal to the required one, and <literal>0</literal> otherwise.
+ */
+#define EV_CHECK_VERSION(major,minor,micro) \
+  (EV_MAJOR_VERSION > (major) || \
+   (EV_MAJOR_VERSION == (major) && EV_MINOR_VERSION > (minor)) || \
+   (EV_MAJOR_VERSION == (major) && EV_MINOR_VERSION == (minor) && EV_MICRO_VERSION >= (micro)))
+
+#endif /* #ifndef EV_VERSION_H */