Index: src/exception.cpp
===================================================================
--- src/exception.cpp	(revision 187356)
+++ src/exception.cpp	(working copy)
@@ -150,8 +150,11 @@
     __cxa_decrement_exception_refcount(__ptr_);
 #else
     #warning exception_ptr not yet implemented
-    printf("exception_ptr not yet implemented\n");
-    ::abort();
+    if (__ptr_ != nullptr)
+    {
+        printf("exception_ptr not yet implemented\n");
+        ::abort();
+    }
 #endif  // __APPLE__
 }