Merge branch 'add-noinline-handle-longjmp'

Minimal fix attempt for GH-55.

src/duk_features.h.in

@@ -1911,6 +1911,19 @@ typedef FILE duk_file;
 #define DUK_UNLIKELY(x)  (x)
 #endif
 
+/*
+ *  DUK_NOINLINE: macro to avoid inlining a function.
+ *
+ *  This has been added specifically to fix GH-55 and the macro syntax may not
+ *  map well to all compilers.
+ */
+
+#if defined(DUK_F_CLANG)
+#define DUK_NOINLINE __attribute__ ((noinline))
+#else
+#define DUK_NOINLINE /*nop*/
+#endif
+
 /*
  *  Symbol visibility macros
  *

src/duk_js_executor.c

@@ -668,6 +668,7 @@ DUK_LOCAL void duk__handle_yield(duk_hthread *thr, duk_hthread *resumer, duk_siz
 }
 
 DUK_LOCAL
+DUK_NOINLINE  /* Needed to fix crash on OSX, see GH-55. */
 duk_small_uint_t duk__handle_longjmp(duk_hthread *thr,
                                      duk_hthread *entry_thread,
                                      duk_size_t entry_callstack_top) {