Rakefile in rays-0.1.46 vs Rakefile in rays-0.1.47

@@ -23,13 +23,13 @@
   tag:      '6.4.2',
   incdirs:  'cpp',
   srcdirs:  'cpp',
   excludes: 'clipper/cpp/cpp_'
 
-use_external_library 'https://github.com/greenm01/poly2tri',
-  commit:  '88de49021b6d9bef6faa1bc94ceb3fbd85c3c204',
-  incdirs: 'poly2tri',
-  srcdirs: 'poly2tri'
+use_external_library 'https://github.com/mapbox/earcut.hpp',
+  tag:     'v2.2.4',
+  incdirs: 'include/mapbox',
+  srcdirs: 'NOSRC'
 
 use_external_library 'https://github.com/andrewwillmott/splines-lib',
   commit:   '11e7240d57b0d22871aec3308186a5fcf915ba77',
   excludes: 'Test\.cpp'