diff --git a/third_party/leptonica/kylin/amd64/lib/libleptonica.a b/third_party/leptonica/kylin/amd64/lib/libleptonica.a
index cec3d397..553e5da0 100644
Binary files a/third_party/leptonica/kylin/amd64/lib/libleptonica.a and b/third_party/leptonica/kylin/amd64/lib/libleptonica.a differ
diff --git a/third_party/leptonica/src/CMakeLists.txt b/third_party/leptonica/src/CMakeLists.txt
new file mode 100644
index 00000000..5cf07fdb
--- /dev/null
+++ b/third_party/leptonica/src/CMakeLists.txt
@@ -0,0 +1,153 @@
+#
+# leptonica
+#
+
+###############################################################################
+#
+# cmake settings
+#
+###############################################################################
+
+cmake_minimum_required(VERSION 2.8.11)
+
+# In-source builds are disabled.
+if (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
+    message(FATAL_ERROR
+        "CMake generation is not possible within the source directory!"
+        "\n Remove the CMakeCache.txt file and try again from another folder, e.g.:"
+        "\n "
+        "\n rm CMakeCache.txt"
+        "\n mkdir build"
+        "\n cd build"
+        "\n cmake .."
+    )
+endif()
+
+set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_SOURCE_DIR}/cmake")
+
+set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}/bin")
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${EXECUTABLE_OUTPUT_PATH}")
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -O2")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -O2")
+
+# Use solution folders.
+set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+set_property(GLOBAL PROPERTY PREDEFINED_TARGETS_FOLDER "CMake Targets")
+
+###############################################################################
+#
+# project settings
+#
+###############################################################################
+
+project(leptonica C CXX)
+
+set(VERSION_MAJOR 1)
+set(VERSION_MINOR 74)
+set(VERSION_PATCH 4)
+set(VERSION_PLAIN ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH})
+
+option(BUILD_PROG "Build utility programs" OFF)
+
+if(NOT EXISTS ${PROJECT_SOURCE_DIR}/.cppan)
+    find_package(GIF)
+    find_package(JPEG)
+    find_package(PNG)
+    find_package(TIFF)
+    find_package(ZLIB)
+
+    find_package(PkgConfig)
+
+    if (PKG_CONFIG_FOUND)
+    pkg_check_modules(WEBP libwebp)
+    pkg_check_modules(JP2K libopenjp2)
+    endif()
+else()
+    add_subdirectory(.cppan)
+
+    add_definitions(
+        -DHAVE_LIBGIF=1
+        -DHAVE_LIBJPEG=1
+        -DHAVE_LIBPNG=1
+        -DHAVE_LIBTIFF=1
+        -DHAVE_LIBWEBP=1
+        -DHAVE_LIBZ=1
+
+        -DHAVE_LIBJP2K=1
+        -DLIBJP2K_HEADER="openjpeg.h"
+    )
+endif()
+
+###############################################################################
+#
+# compiler and linker
+#
+###############################################################################
+
+set(LIBRARY_TYPE STATIC)
+if (STATIC)
+    set(LIBRARY_TYPE)
+endif()
+
+if (WIN32)
+    if (MSVC)
+        add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W1")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
+    endif()
+endif()
+
+###############################################################################
+#
+# configure
+#
+###############################################################################
+
+set(AUTOCONFIG_SRC ${CMAKE_BINARY_DIR}/config_auto.h.in)
+set(AUTOCONFIG ${CMAKE_BINARY_DIR}/src/config_auto.h)
+
+include(Configure)
+
+configure_file(${AUTOCONFIG_SRC} ${AUTOCONFIG} @ONLY)
+
+set(INCLUDE_DIR "${CMAKE_INSTALL_PREFIX}/include" "${CMAKE_INSTALL_PREFIX}/include/leptonica")
+
+configure_file(
+    ${CMAKE_SOURCE_DIR}/cmake/templates/LeptonicaConfig-version.cmake.in
+    ${CMAKE_BINARY_DIR}/LeptonicaConfig-version.cmake @ONLY)
+configure_file(
+    ${CMAKE_SOURCE_DIR}/cmake/templates/LeptonicaConfig.cmake.in
+    ${CMAKE_BINARY_DIR}/LeptonicaConfig.cmake @ONLY)
+
+###############################################################################
+#
+# build
+#
+###############################################################################
+
+add_definitions(-DHAVE_CONFIG_H)
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/src)
+include_directories(/home/luoliangyi/sane/code_app/third_party/libjpeg/kylin/amd64/include)
+include_directories(/home/luoliangyi/sane/code_app/third_party/libpng/kylin/amd64/include/libpng16)
+include_directories(/home/luoliangyi/sane/code_app/third_party/libtiff/kylin/amd64/include)
+
+if (BUILD_PROG)
+add_subdirectory(prog)
+endif()
+
+add_subdirectory(src)
+
+get_target_property(leptonica_NAME leptonica NAME)
+get_target_property(leptonica_VERSION leptonica VERSION)
+get_target_property(leptonica_OUTPUT_NAME leptonica OUTPUT_NAME)
+configure_file(lept.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/lept.pc @ONLY)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/lept.pc DESTINATION lib/pkgconfig)
+install(FILES
+    ${CMAKE_BINARY_DIR}/LeptonicaConfig.cmake
+    ${CMAKE_BINARY_DIR}/LeptonicaConfig-version.cmake
+    DESTINATION cmake)
+
+###############################################################################
diff --git a/third_party/leptonica/uos/amd64/lib/libleptonica.a b/third_party/leptonica/uos/amd64/lib/libleptonica.a
index 7a0620b0..553e5da0 100644
Binary files a/third_party/leptonica/uos/amd64/lib/libleptonica.a and b/third_party/leptonica/uos/amd64/lib/libleptonica.a differ