diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,12 +3,22 @@
 SET(PROJECT_NAME "LEMON")
 PROJECT(${PROJECT_NAME})
 
+INCLUDE(FindPythonInterp)
+INCLUDE(FindWget)
+
 IF(EXISTS ${PROJECT_SOURCE_DIR}/cmake/version.cmake)
   INCLUDE(${PROJECT_SOURCE_DIR}/cmake/version.cmake)
 ELSEIF(DEFINED ENV{LEMON_VERSION})
   SET(LEMON_VERSION $ENV{LEMON_VERSION} CACHE STRING "LEMON version string.")
 ELSE()
   EXECUTE_PROCESS(
+    COMMAND ${PYTHON_EXECUTABLE} ./scripts/chg-len.py
+    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+    OUTPUT_VARIABLE HG_REVISION_PATH
+    ERROR_QUIET
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+  EXECUTE_PROCESS(
     COMMAND hg id -i
     WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
     OUTPUT_VARIABLE HG_REVISION
@@ -16,9 +26,15 @@
     OUTPUT_STRIP_TRAILING_WHITESPACE
   )
   IF(HG_REVISION STREQUAL "")
-    SET(HG_REVISION "hg-tip")
+    SET(HG_REVISION_ID "hg-tip")
+  ELSE()
+    IF(HG_REVISION_PATH STREQUAL "")
+      SET(HG_REVISION_ID ${HG_REVISION})
+    ELSE()
+      SET(HG_REVISION_ID ${HG_REVISION_PATH}.${HG_REVISION})
+    ENDIF()
   ENDIF()
-  SET(LEMON_VERSION ${HG_REVISION} CACHE STRING "LEMON version string.")
+  SET(LEMON_VERSION ${HG_REVISION_ID} CACHE STRING "LEMON version string.")
 ENDIF()
 
 SET(PROJECT_VERSION ${LEMON_VERSION})
@@ -31,12 +47,81 @@
 FIND_PACKAGE(CPLEX)
 FIND_PACKAGE(COIN)
 
+IF(DEFINED ENV{LEMON_CXX_WARNING})
+  SET(CXX_WARNING $ENV{LEMON_CXX_WARNING})
+ELSE()
+  IF(CMAKE_COMPILER_IS_GNUCXX)
+    SET(CXX_WARNING "-Wall -W -Wunused -Wformat=2 -Wctor-dtor-privacy -Wnon-virtual-dtor -Wno-char-subscripts -Wwrite-strings -Wno-char-subscripts -Wreturn-type -Wcast-qual -Wcast-align -Wsign-promo -Woverloaded-virtual -ansi -fno-strict-aliasing -Wold-style-cast -Wno-unknown-pragmas")
+    SET(CMAKE_CXX_FLAGS_DEBUG CACHE STRING "-ggdb")
+    SET(CMAKE_C_FLAGS_DEBUG CACHE STRING "-ggdb")
+  ELSEIF(MSVC)
+    # This part is unnecessary 'casue the same is set by the lemon/core.h.
+    # Still keep it as an example.
+    SET(CXX_WARNING "/wd4250 /wd4355 /wd4503 /wd4800 /wd4996")
+    # Suppressed warnings:
+    # C4250: 'class1' : inherits 'class2::member' via dominance
+    # C4355: 'this' : used in base member initializer list
+    # C4503: 'function' : decorated name length exceeded, name was truncated
+    # C4800: 'type' : forcing value to bool 'true' or 'false'
+    #        (performance warning)
+    # C4996: 'function': was declared deprecated
+  ELSE()
+    SET(CXX_WARNING "-Wall -W")
+  ENDIF()
+ENDIF()
+SET(LEMON_CXX_WARNING_FLAGS ${CXX_WARNING} CACHE STRING "LEMON warning flags.")
+
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LEMON_CXX_WARNING_FLAGS}")
+
+SET( CMAKE_CXX_FLAGS_MAINTAINER "-Werror -ggdb" CACHE STRING
+    "Flags used by the C++ compiler during maintainer builds."
+    FORCE )
+SET( CMAKE_C_FLAGS_MAINTAINER "-Werror" CACHE STRING
+    "Flags used by the C compiler during maintainer builds."
+    FORCE )
+SET( CMAKE_EXE_LINKER_FLAGS_MAINTAINER
+    "-Wl,--warn-unresolved-symbols,--warn-once" CACHE STRING
+    "Flags used for linking binaries during maintainer builds."
+    FORCE )
+SET( CMAKE_SHARED_LINKER_FLAGS_MAINTAINER
+    "-Wl,--warn-unresolved-symbols,--warn-once" CACHE STRING
+    "Flags used by the shared libraries linker during maintainer builds."
+    FORCE )
+MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_MAINTAINER
+    CMAKE_C_FLAGS_MAINTAINER
+    CMAKE_EXE_LINKER_FLAGS_MAINTAINER
+    CMAKE_SHARED_LINKER_FLAGS_MAINTAINER )
+
+IF(CMAKE_CONFIGURATION_TYPES)
+  LIST(APPEND CMAKE_CONFIGURATION_TYPES Maintainer)
+  LIST(REMOVE_DUPLICATES CMAKE_CONFIGURATION_TYPES)
+  SET(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING
+      "Add the configurations that we need"
+      FORCE)
+ endif()
+
+IF(NOT CMAKE_BUILD_TYPE)
+  SET(CMAKE_BUILD_TYPE "Release")
+ENDIF()
+
+SET( CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}" CACHE STRING
+    "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel Maintainer."
+    FORCE )
+
+
 INCLUDE(CheckTypeSize)
 CHECK_TYPE_SIZE("long long" LONG_LONG)
 SET(LEMON_HAVE_LONG_LONG ${HAVE_LONG_LONG})
 
 ENABLE_TESTING()
 
+IF(${CMAKE_BUILD_TYPE} STREQUAL "Maintainer")
+  ADD_CUSTOM_TARGET(check ALL COMMAND ${CMAKE_CTEST_COMMAND})
+ELSE()
+  ADD_CUSTOM_TARGET(check COMMAND ${CMAKE_CTEST_COMMAND})
+ENDIF()
+
 ADD_SUBDIRECTORY(lemon)
 IF(${CMAKE_SOURCE_DIR} STREQUAL ${PROJECT_SOURCE_DIR})
   ADD_SUBDIRECTORY(demo)
@@ -62,7 +147,7 @@
   )
 ENDIF()
 
-IF(${CMAKE_SOURCE_DIR} STREQUAL ${PROJECT_SOURCE_DIR} AND WIN32)
+IF(${CMAKE_SOURCE_DIR} STREQUAL ${PROJECT_SOURCE_DIR})
   SET(CPACK_PACKAGE_NAME ${PROJECT_NAME})
   SET(CPACK_PACKAGE_VENDOR "EGRES")
   SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY