diff -uNr Boost-Geometry-Utils-0.15/src/mline2av.h Boost-Geometry-Utils-0.15p/src/mline2av.h
--- Boost-Geometry-Utils-0.15/src/mline2av.h	2013-06-21 20:47:35.000000000 +0300
+++ Boost-Geometry-Utils-0.15p/src/mline2av.h	2014-08-17 15:57:02.117758229 +0300
@@ -9,7 +9,8 @@
 {
   AV* av = newAV();
   const unsigned int size = mls.size();
-  av_extend(av, size-1);
+  if (size > 0)
+    av_extend(av, size-1);
 
   for (int i = 0; i < size; i++) {
     AV* lineav = newAV();