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diff --git a/wsrep-lib/include/wsrep/compiler.hpp b/wsrep-lib/include/wsrep/compiler.hpp
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+++ b/wsrep-lib/include/wsrep/compiler.hpp
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+/*
+ * Copyright (C) 2018 Codership Oy <info@codership.com>
+ *
+ * This file is part of wsrep-lib.
+ *
+ * Wsrep-lib 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.
+ *
+ * Wsrep-lib 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 wsrep-lib.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+
+/** @file compiler.hpp
+ *
+ * Compiler specific macro definitions.
+ *
+ * WSREP_NOEXCEPT - Specifies that the method/function does not throw. If
+ *                  and exception is thrown inside, std::terminate is called
+ *                  without propagating the exception.
+ *                  Set to "noexcept" if the compiler supports it, otherwise
+ *                  left empty.
+ * WSREP_NORETURN - Indicates that the method/function does not return.
+ *                  Set to attribute "[[noreturn]]" if the compiler supports,
+ *                  it, otherwise "__attribute__((noreturn))".
+ * WSREP_OVERRIDE - Set to "override" if the compiler supports it, otherwise
+ *                  left empty.
+ * WSREP_UNUSED - Can be used to mark variables which may be present in
+ *                debug builds but not in release builds.
+ * WSREP_FALLTHROUGH - Silence implicit fallthrough warning.
+ */
+
+#ifndef WSREP_LIB_COMPILER_HPP
+#define WSREP_LIB_COMPILER_HPP
+
+#if __cplusplus >= 201103L && !(__GNUC__ == 4 && __GNUG_MINOR__ < 8)
+#define WSREP_NORETURN [[noreturn]]
+#else
+#define WSREP_NORETURN __attribute__((noreturn))
+#endif // __cplusplus >= 201103L && !(__GNUC__ == 4 && __GNUG_MINOR__ < 8)
+
+#if __cplusplus >= 201103L
+#define WSREP_NOEXCEPT noexcept
+#define WSREP_OVERRIDE override
+#else
+#define WSREP_NOEXCEPT
+#define WSREP_OVERRIDE
+#endif // __cplusplus >= 201103L
+#define WSREP_UNUSED __attribute__((unused))
+
+#if __GNUC__ >= 7
+#define WSREP_FALLTHROUGH __attribute__((fallthrough))
+#elif defined(__clang__)
+#  if defined(__has_warning)
+#    if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough")
+#      define WSREP_FALLTHROUGH [[clang::fallthrough]]
+#    endif
+#  endif
+#else  // __clang __
+#define WSREP_FALLTHROUGH ((void)0)
+#endif // __GNUC__ >= 7 || (__clang__ && __clang_major__ >= 10)
+
+#endif // WSREP_LIB_COMPILER_HPP