diff --git a/.gitignore b/.gitignore
index 51f1d410..a2b1c37c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,6 @@
-bin/*
+build/*
 src/lex.yy.c
 src/lex.yy.h
-src/y.tab.c
-src/y.tab.h
-lib/*
 .dir-locals.el
 GPATH
 GRTAGS
diff --git a/.travis.yml b/.travis.yml
index 8d0bd1c2..b101d255 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,8 @@ language: c
 compiler:
   - gcc
   - clang
+before_script:
+  - cd build
 script:
-  - make && make no-act
-  - make debug && make no-act
+  - cmake .. && make && make no-act
+  - cmake -DCMAKE_BUILD_TYPE=Debug .. && make && make no-act
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 00000000..4090ea75
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 2.8)
+
+project(picrin)
+
+# git submodule update --init
+execute_process(
+  COMMAND ${GIT_EXECUTABLE} submodule update --init
+  WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+  )
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY bin)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY lib)
+set(CMAKE_C_FLAGS "-Wall -Wextra -std=c99")
+set(CMAKE_C_FLAGS_DEBUG "-DDEBUG=1")
+
+# external libraries
+add_library(xfile SHARED extlib/xfile/xfile.c)
+
+# build picrin
+include_directories(include extlib)
+include(src/CMakeLists.txt)
+include(tools/CMakeLists.txt)
+
+# copy runtime files
+file(COPY piclib DESTINATION .)
+file(COPY etc DESTINATION .)
+
+# $ make run
+add_custom_target(run bin/picrin DEPENDS repl)
+
+# $ make no-act
+add_custom_target(no-act bin/picrin -e '' > /dev/null DEPENDS repl)
+
+# $ make tak
+add_custom_target(tak bin/picrin etc/tak.scm DEPENDS repl)
+
+# $ make lines
+add_custom_target(lines find . -name "*.[chyl]" | xargs wc -l WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
diff --git a/Makefile b/Makefile
deleted file mode 100644
index fc555f7d..00000000
--- a/Makefile
+++ /dev/null
@@ -1,48 +0,0 @@
-CFLAGS=-Wall -Wextra -std=c99
-
-ifeq ($(findstring CYGWIN,$(shell uname -s)), CYGWIN)
-  XFILE_LIB=cygxfile.dll
-  PICRIN_LIB=cygpicrin.dll
-else
-  XFILE_LIB=libxfile.so
-  PICRIN_LIB=libpicrin.so
-endif
-
-all: deps release
-
-deps:
-	git submodule update --init
-	$(CC) $(CFLAGS) -shared -fPIC extlib/xfile/*.c -o lib/$(XFILE_LIB) -I./extlib/xfile
-
-release: CFLAGS += -DDEBUG=0 -O3
-release: build
-
-debug: CFLAGS += -g -DDEBUG=1 -O0
-debug: build
-
-build: build-lib build-main
-
-build-main:
-	$(CC) $(CFLAGS) -D_GNU_SOURCE -Wl,-rpath lib tools/main.c -o bin/picrin -I./include -I./extlib -L./lib -lreadline -lm -lxfile -lpicrin
-
-build-lib:
-	cd src; \
-	  flex scan.l
-	$(CC) $(CFLAGS) -shared -fPIC src/*.c -o lib/$(PICRIN_LIB) -I./include -I./extlib -L./lib -lm -lxfile
-
-clean:
-	rm -f src/lex.yy.c src/lex.yy.h
-	rm -f lib/$(PICRIN_LIB)
-	rm -f bin/picrin
-
-run:
-	bin/picrin
-
-tak: release
-	bin/picrin etc/tak.scm
-
-lines: clean
-	wc -l `find . -name "*.[chyl]"`
-
-no-act:
-	bin/picrin -e '' > /dev/null
diff --git a/README.md b/README.md
index 110685ba..9974c5bb 100644
--- a/README.md
+++ b/README.md
@@ -126,13 +126,22 @@ https://github.com/wasabiz/picrin
 
 ## How to use it
 
+- make `Makefile`
+
+	Change directory to `build` then run `cmake` to create Makefile. Once `Makefile` is generated you can run `make` command to build picrin.
+
+		$ cd build
+        $ cmake ..
+
+	Of course you don't need to move to `build` directory before running `cmake` (in that case `$ cmake .`), but I strongly recommend to follow above instruction.
+    
 - build
 
-	A built executable binary will be under bin/ directory and a shared library `libpicrin.so` under lib/.
-	
-		$ make
+ 	A built executable binary will be under bin/ directory and shared libraries under lib/.
 
-	If you want to build picrin on other systems than x86_64, make sure PIC_NAN_BOXING flag is turned off (see include/config.h for detail).
+        $ make
+
+	If you are building picrin on other systems than x86_64, PIC_NAN_BOXING flag is automatically turned on (see include/config.h for detail).
 
 - run
 
@@ -140,15 +149,15 @@ https://github.com/wasabiz/picrin
 
 		$ make run
 
-- debug-run
+- debug
 
-	When `make` command is called with an argument `debug`, it builds the binary with all debug flags enabled (PIC_GC_STRESS, VM_DEBUG, DEBUG).
+	If you execute `cmake` with debug flag `-DCMAKE_BUILD_TYPE=Debug`, it builds the binary with all debug flags enabled (PIC_GC_STRESS, VM_DEBUG, DEBUG).
 
-		$ make debug
+		$ cmake -DCMAKE_BUILD_TYPE=Debug ..
 	
 - install
 
-	As of now picrin does not provide a command automatically installs the binary. If you want to place picrin library and binary in a parmanent directory, please do it by hand.
+	As of this writing picrin does not provide a command automatically installs the binary. If you want to place picrin library and binary in a parmanent directory, please do it by hand. (TODO)
 
 ## Requirement
 
@@ -157,7 +166,7 @@ picrin scheme depends on some external libraries to build the binary:
 - lex (preferably, flex)
 - readline (optional)
 
-The compilation is tested only on Mac OSX. I think (or hope) it'll be ok to compile and run on other operating systems such as Linux or Windows, but there's no guarantee :(
+The compilation is tested only on Mac OSX and Ubuntu. I think (or hope) it'll be ok to compile and run on other operating systems such as Arch or Windows, but I don't guarantee :(
 
 ## Authors
 
diff --git a/bin/.gitkeep b/build/.gitkeep
similarity index 100%
rename from bin/.gitkeep
rename to build/.gitkeep
diff --git a/lib/.gitkeep b/lib/.gitkeep
deleted file mode 100644
index e69de29b..00000000
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 00000000..e80d7cc3
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,10 @@
+find_package(FLEX REQUIRED)
+flex_target(scan src/scan.l ${PROJECT_SOURCE_DIR}/src/lex.yy.c COMPILE_FLAGS --header-file="src/lex.yy.h")
+
+add_library(picrin SHARED
+  src/blob.c src/bool.c src/char.c src/codegen.c src/cont.c src/error.c
+  src/file.c src/gc.c src/init.c src/lib.c src/load.c src/macro.c
+  src/number.c src/pair.c src/port.c src/proc.c src/read.c src/state.c
+  src/string.c src/symbol.c src/system.c src/time.c src/var.c src/vector.c
+  src/vm.c src/write.c ${PROJECT_SOURCE_DIR}/src/lex.yy.c)
+target_link_libraries(picrin m xfile)
diff --git a/src/scan.l b/src/scan.l
index 8c4cd5c5..055aff98 100644
--- a/src/scan.l
+++ b/src/scan.l
@@ -29,7 +29,6 @@
 %option noyywrap
 
 %option extra-type="struct parser_control *"
-%option header-file="lex.yy.h"
 %option never-interactive
 
   /* comment */
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
new file mode 100644
index 00000000..97619e93
--- /dev/null
+++ b/tools/CMakeLists.txt
@@ -0,0 +1,3 @@
+add_executable(repl tools/main.c)
+set_target_properties(repl PROPERTIES OUTPUT_NAME picrin)
+target_link_libraries(repl picrin readline)
diff --git a/tools/main.c b/tools/main.c
index a522915e..a50f2cf6 100644
--- a/tools/main.c
+++ b/tools/main.c
@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
+#include <getopt.h>
 
 #include "picrin.h"
 #include "picrin/pair.h"