我有一个本地安装的库的问题 . 在我的项目中有xmlrpc 0.7库:
myproject/
+-- xmlrpc++0.7/
+-- src/
如果没有找到,我希望CMake使用本地xmlrpc 0.7目录进行回退 . 两个问题,第一个,find_path()或find_library()不适用于本地目录 . 我使用了一种变通方法来测试find_xxx()处理的变量是否为空 . 如果为空,我手动设置它们 . cmake现在生成Makefile而没有错误 . 但是如果我想通过make编译项目,则c编译器返回“错误:XmlRpc.h:找不到文件” . 文件XmlRpc.h位于myproject / xmlrpc 0.7 / src中,如果我手动编译它们就可以了 .
这是我的CMakeLists.txt . 如果有人能指出在上述条件下使用cmake的正确解决方案,我感到非常高兴 .
--- CMakeLists.txt ---
project(webservice_tesseract)
cmake_minimum_required(VERSION 2.6)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# find tesseract
find_path(TESSERACT_INCLUDE_DIR tesseract/tesseractmain.h
/opt/local/include
/usr/local/include
/usr/include
)
find_library(TESSERACT_LIBRARY_DIR
NAMES tesseract_main
PATHS
/opt/local/lib/
/usr/local/lib/
/usr/lib
)
message(STATUS "looked for tesseract library.")
message(STATUS "Include file detected: [${TESSERACT_INCLUDE_DIR}].")
message(STATUS "Lib file detected: [${TESSERACT_LIBRARY_DIR}].")
add_library(tesseract STATIC IMPORTED)
set_property(TARGET tesseract PROPERTY IMPORTED_LOCATION
${TESSERACT_LIBRARY_DIR}/libtesseractmain.a
)
#find xmlrpc++
message(STATUS "cmake home dir: [${CMAKE_HOME_DIRECTORY}].")
set(LOCAL_XMLRPCPLUSPLUS ${CMAKE_HOME_DIRECTORY}/xmlrpc0.7++/)
message(STATUS "xmlrpc++ local dir: [${LOCAL_XMLRPCPLUSPLUS}].")
find_path(XMLRPCPLUSPLUS_INCLUDE_DIR XmlRpcServer.h
${LOCAL_XMLRPCPLUSPLUS}src
/opt/local/include
/usr/local/include
/usr/include
)
find_library(XMLRPCPLUSPLUS_LIBRARY_DIR
NAMES XmlRpc
PATHS
${LOCAL_XMLRPCPLUSPLUS}
/opt/local/lib/
/usr/local/lib/
/usr/lib/
)
# next lines are an ugly workaround because cmake find_xxx() does not find local stuff
if (XMLRPCPLUSPLUS_INCLUDE_DIR)
else (XMLRPCPLUSPLUS_INCLUDE_DIR)
set(XMLRPCPLUSPLUS_INCLUDE_DIR ${LOCAL_XMLRPCPLUSPLUS}src)
endif (XMLRPCPLUSPLUS_INCLUDE_DIR)
if (XMLRPCPLUSPLUS_LIBRARY_DIR)
else (XMLRPCPLUSPLUS_LIBRARY_DIR)
set(XMLRPCPLUSPLUS_LIBRARY_DIR ${LOCAL_XMLRPCPLUSPLUS})
endif (XMLRPCPLUSPLUS_LIBRARY_DIR)
message(STATUS "looked for xmlrpc++ library.")
message(STATUS "Include file detected: [${XMLRPCPLUSPLUS_INCLUDE_DIR}].")
message(STATUS "Lib file detected: [${XMLRPCPLUSPLUS_LIBRARY_DIR}].")
add_library(xmlrpc STATIC IMPORTED)
set_property(TARGET xmlrpc PROPERTY IMPORTED_LOCATION
${XMLRPCPLUSPLUS_LIBRARY_DIR}/libXmlRpc.a
)
#### link together
include_directories(${XMLRPCPLUSPLUS_INCLUDE_DIR} ${TESSERACT_INCLUDE_DIR})
link_directories(${XMLRPCPLUSPLUS_LIBRARY_DIR} ${TESSERACT_LIBRARY_DIR})
add_library(simpleocr STATIC simple_ocr.cpp)
add_executable(webservice_tesseract webservice.cpp)
target_link_libraries(webservice_tesseract xmlrpc tesseract simpleocr)