diff --git a/include/toolchain.h b/include/toolchain.h
index 5d0ac3907aa..88cedb0fb3b 100644
--- a/include/toolchain.h
+++ b/include/toolchain.h
@@ -15,6 +15,24 @@
 #ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_
 #define ZEPHYR_INCLUDE_TOOLCHAIN_H_
 
+/**
+ * @def HAS_BUILTIN(x)
+ * @brief Check if the compiler supports the built-in function \a x.
+ *
+ * This macro is for use with conditional compilation to enable code using a
+ * builtin function that may not be available in every compiler.
+ */
+#ifdef __has_builtin
+#define HAS_BUILTIN(x) __has_builtin(x)
+#else
+/*
+ * The compiler doesn't provide the __has_builtin() macro, so instead we depend
+ * on the toolchain-specific headers to define HAS_BUILTIN_x for the builtins
+ * supported.
+ */
+#define HAS_BUILTIN(x) HAS_BUILTIN_##x
+#endif
+
 #if defined(__XCC__)
 #include <toolchain/xcc.h>
 #elif defined(__GNUC__) || (defined(_LINKER) && defined(__GCC_LINKER_CMD__))
diff --git a/include/toolchain/gcc.h b/include/toolchain/gcc.h
index 0c455597673..b45e5b2cfd3 100644
--- a/include/toolchain/gcc.h
+++ b/include/toolchain/gcc.h
@@ -152,6 +152,22 @@ do {                                                                    \
 #endif
 #define __unused __attribute__((__unused__))
 
+/* Builtins with availability that depend on the compiler version. */
+#if __GNUC__ >= 5
+#define HAS_BUILTIN___builtin_add_overflow 1
+#define HAS_BUILTIN___builtin_sub_overflow 1
+#define HAS_BUILTIN___builtin_mul_overflow 1
+#define HAS_BUILTIN___builtin_div_overflow 1
+#endif
+#if __GNUC__ >= 4
+#define HAS_BUILTIN___builtin_clz 1
+#define HAS_BUILTIN___builtin_clzl 1
+#define HAS_BUILTIN___builtin_clzll 1
+#define HAS_BUILTIN___builtin_ctz 1
+#define HAS_BUILTIN___builtin_ctzl 1
+#define HAS_BUILTIN___builtin_ctzll 1
+#endif
+
 /* Be *very* careful with this, you cannot filter out with -wno-deprecated,
  * which has implications for -Werror
  */