diff --git a/nativelib/src/main/resources/unwind.c b/nativelib/src/main/resources/unwind.c
index b87e730..f66f836 100644
--- a/nativelib/src/main/resources/unwind.c
+++ b/nativelib/src/main/resources/unwind.c
@@ -1,19 +1,20 @@
-#include <libunwind.h>
+//#include <libunwind.h>
+#include <stddef.h>

 int scalanative_unwind_get_context(void *context) {
-    return unw_getcontext((unw_context_t*) context);
+    return 0;//unw_getcontext((unw_context_t*) context);
 }

 int scalanative_unwind_init_local(void *cursor, void *context) {
-    return unw_init_local((unw_cursor_t*) cursor, (unw_context_t*) context);
+    return 0;//unw_init_local((unw_cursor_t*) cursor, (unw_context_t*) context);
 }

 int scalanative_unwind_step(void *cursor) {
-    return unw_step((unw_cursor_t*) cursor);
+    return 0;//unw_step((unw_cursor_t*) cursor);
 }

 int scalanative_unwind_get_proc_name(void *cursor, char *buffer,
        size_t length, void *offset) {
-    return unw_get_proc_name((unw_cursor_t*) cursor, buffer, length,
-            (unw_word_t*) offset);
+    return 0;//unw_get_proc_name((unw_cursor_t*) cursor, buffer, length,
+            //(unw_word_t*) offset);
 }
diff --git a/nativelib/src/main/resources/wrap.c b/nativelib/src/main/resources/wrap.c
index 0dbe813..2ac98d8 100644
--- a/nativelib/src/main/resources/wrap.c
+++ b/nativelib/src/main/resources/wrap.c
@@ -4,6 +4,13 @@
 #include <math.h>
 #include <errno.h>

+# define MATH_ERRNO	1	/* errno set by math functions.  */
+# define MATH_ERREXCEPT	2	/* Exceptions raised by math functions.  */
+
+# ifndef __FAST_MATH__
+#  define math_errhandling	(MATH_ERRNO | MATH_ERREXCEPT)
+# endif
+
 // This file contains functions that wrap libc
 // built-in macros. We need this because Scala Native
 // can not expand C macros, and that's the easiest way to