diff --git a/.hgignore b/.hgignore
--- a/.hgignore
+++ b/.hgignore
@@ -34,3 +34,8 @@
 ^objs.*/.*
 ^test/[a-z_]*$
 ^demo/.*_demo$
+^build/.*
+CMakeFiles
+DartTestfile.txt
+cmake_install.cmake
+CMakeCache.txt
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,5 @@
+project (LEMON)
+enable_testing ()
+add_subdirectory (lemon)
+add_subdirectory (demo)
+add_subdirectory (test)
diff --git a/benchmark/Makefile b/benchmark/Makefile
deleted file mode 100644
--- a/benchmark/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-all:
-	$(MAKE) -C ..
diff --git a/demo/CMakeLists.txt b/demo/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/demo/CMakeLists.txt
@@ -0,0 +1,13 @@
+include_directories (${LEMON_SOURCE_DIR})
+
+link_directories (${LEMON_BINARY_DIR}/lemon)
+
+set (DEMOS
+  arg_parser_demo
+  graph_to_eps_demo
+  lgf_demo)
+
+foreach (DEMO_NAME ${DEMOS})
+  add_executable (${DEMO_NAME} ${DEMO_NAME}.cc)
+  target_link_libraries (${DEMO_NAME} lemon)
+  endforeach (DEMO_NAME)
diff --git a/demo/Makefile b/demo/Makefile
deleted file mode 100644
--- a/demo/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-all:
-	$(MAKE) -C ..
diff --git a/doc/Makefile b/doc/Makefile
deleted file mode 100644
--- a/doc/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-all:
-	$(MAKE) -C ..
diff --git a/lemon/CMakeLists.txt b/lemon/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/lemon/CMakeLists.txt
@@ -0,0 +1,2 @@
+include_directories (${LEMON_SOURCE_DIR})
+add_library (lemon arg_parser.cc base.cc color.cc random.cc)
diff --git a/lemon/Makefile b/lemon/Makefile
deleted file mode 100644
--- a/lemon/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-all:
-	$(MAKE) -C ..
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,24 @@
+include_directories (${LEMON_SOURCE_DIR})
+
+link_directories (${LEMON_BINARY_DIR}/lemon)
+
+set (TESTS
+  bfs_test
+  counter_test
+  dfs_test
+  digraph_test
+  dim_test
+  error_test
+  graph_test
+  kruskal_test
+  maps_test
+  random_test
+  path_test
+  time_measure_test
+  unionfind_test)
+
+foreach (TEST_NAME ${TESTS})
+  add_executable (${TEST_NAME} ${TEST_NAME}.cc)
+  target_link_libraries (${TEST_NAME} lemon)
+  add_test(${TEST_NAME} ${TEST_NAME})
+endforeach (TEST_NAME)
diff --git a/test/Makefile b/test/Makefile
deleted file mode 100644
--- a/test/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-all:
-	$(MAKE) -C ..
diff --git a/tools/Makefile b/tools/Makefile
deleted file mode 100644
--- a/tools/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-all:
-	$(MAKE) -C ..