--- a/extern/duktape/duk_config.h	Thu Dec 01 12:57:29 2016 +0100
+++ b/extern/duktape/duk_config.h	Thu Dec 01 13:05:12 2016 +0100
@@ -1,9 +1,9 @@
 /*
  *  duk_config.h configuration header generated by genconfig.py.
  *
- *  Git commit: 83d557704ee63f68ab40b6fcb00995c9b3d6777c
- *  Git describe: v1.5.0
- *  Git branch: master
+ *  Git commit: 2cc76e9ff1f64869e1146ad7317d8cbe33bbd27e
+ *  Git describe: v1.5.1
+ *  Git branch: HEAD
  *
  *  Supported platforms:
  *      - Mac OSX, iPhone, Darwin
@@ -918,12 +918,27 @@
 #define DUK_EXTERNAL_DECL  __attribute__ ((visibility("default"))) extern
 #define DUK_EXTERNAL       __attribute__ ((visibility("default")))
 #if defined(DUK_SINGLE_FILE)
+#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
+/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
+ * Clang.  Based on documentation it should suffice to have the attribute
+ * in the declaration only, but in practice some warnings are generated unless
+ * the attribute is also applied to the definition.
+ */
+#define DUK_INTERNAL_DECL  static __attribute__ ((unused))
+#define DUK_INTERNAL       static __attribute__ ((unused))
+#else
 #define DUK_INTERNAL_DECL  static
 #define DUK_INTERNAL       static
+#endif
+#else
+#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
+#define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
+#define DUK_INTERNAL       __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
 #else
 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) extern
 #define DUK_INTERNAL       __attribute__ ((visibility("hidden")))
 #endif
+#endif
 #define DUK_LOCAL_DECL     static
 #define DUK_LOCAL          static
 #endif
@@ -1012,12 +1027,27 @@
 #define DUK_EXTERNAL_DECL  __attribute__ ((visibility("default"))) extern
 #define DUK_EXTERNAL       __attribute__ ((visibility("default")))
 #if defined(DUK_SINGLE_FILE)
+#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
+/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
+ * Clang.  Based on documentation it should suffice to have the attribute
+ * in the declaration only, but in practice some warnings are generated unless
+ * the attribute is also applied to the definition.
+ */
+#define DUK_INTERNAL_DECL  static __attribute__ ((unused))
+#define DUK_INTERNAL       static __attribute__ ((unused))
+#else
 #define DUK_INTERNAL_DECL  static
 #define DUK_INTERNAL       static
+#endif
+#else
+#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
+#define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
+#define DUK_INTERNAL       __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
 #else
 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) extern
 #define DUK_INTERNAL       __attribute__ ((visibility("hidden")))
 #endif
+#endif
 #define DUK_LOCAL_DECL     static
 #define DUK_LOCAL          static
 #endif
@@ -1174,12 +1204,27 @@
 #define DUK_EXTERNAL_DECL  __attribute__ ((visibility("default"))) extern
 #define DUK_EXTERNAL       __attribute__ ((visibility("default")))
 #if defined(DUK_SINGLE_FILE)
+#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
+/* Minimize warnings for unused internal functions with GCC >= 3.1.1 and
+ * Clang.  Based on documentation it should suffice to have the attribute
+ * in the declaration only, but in practice some warnings are generated unless
+ * the attribute is also applied to the definition.
+ */
+#define DUK_INTERNAL_DECL  static __attribute__ ((unused))
+#define DUK_INTERNAL       static __attribute__ ((unused))
+#else
 #define DUK_INTERNAL_DECL  static
 #define DUK_INTERNAL       static
+#endif
+#else
+#if (defined(DUK_F_GCC_VERSION) && DUK_F_GCC_VERSION >= 30101) || defined(DUK_F_CLANG)
+#define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) __attribute__ ((unused)) extern
+#define DUK_INTERNAL       __attribute__ ((visibility("hidden"))) __attribute__ ((unused))
 #else
 #define DUK_INTERNAL_DECL  __attribute__ ((visibility("hidden"))) extern
 #define DUK_INTERNAL       __attribute__ ((visibility("hidden")))
 #endif
+#endif
 #define DUK_LOCAL_DECL     static
 #define DUK_LOCAL          static
 
@@ -2077,7 +2122,13 @@
 /* Missing some obvious constants. */
 #define DUK_F_USE_REPL_ALL
 #elif defined(DUK_F_AMIGAOS) && defined(DUK_F_VBCC)
-/* VBCC is missing the built-ins even in C99 mode (perhaps a header issue) */
+/* VBCC is missing the built-ins even in C99 mode (perhaps a header issue). */
+#define DUK_F_USE_REPL_ALL
+#elif defined(DUK_F_AMIGAOS) && defined(DUK_F_M68K)
+/* AmigaOS + M68K seems to have math issues even when using GCC cross
+ * compilation.  Use replacements for all AmigaOS versions on M68K
+ * regardless of compiler.
+ */
 #define DUK_F_USE_REPL_ALL
 #elif defined(DUK_F_FREEBSD) && defined(DUK_F_CLANG)
 /* Placeholder fix for (detection is wider than necessary):