diff --git a/.gitignore b/.gitignore
index fb93101..6087c35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 .clang-format
-docs
-*png
+*.png
+*.o
+*.d
 ANA
-*o
-*d
diff --git a/_build/CMakeLists.txt b/_build/CMakeLists.txt
new file mode 100644
index 0000000..999e131
--- /dev/null
+++ b/_build/CMakeLists.txt
@@ -0,0 +1,45 @@
+# Created by the script cgal_create_CMakeLists
+# This is the CMake script for compiling a set of CGAL applications.
+
+project( _build )
+
+
+cmake_minimum_required(VERSION 2.8.11)
+
+# CGAL and its components
+find_package( CGAL QUIET COMPONENTS  )
+
+if ( NOT CGAL_FOUND )
+
+  message(STATUS "This project requires the CGAL library, and will not be compiled.")
+  return()  
+
+endif()
+
+# include helper file
+include( ${CGAL_USE_FILE} )
+
+
+# Boost and its components
+find_package( Boost REQUIRED )
+
+if ( NOT Boost_FOUND )
+
+  message(STATUS "This project requires the Boost library, and will not be compiled.")
+
+  return()  
+
+endif()
+
+# include for local directory
+
+# include for local package
+include_directories( BEFORE ../include )
+
+
+# Creating entries for all C++ files with "main" routine
+# ##########################################################
+
+include( CGAL_CreateSingleSourceCGALProgram )
+
+