如何通過CMake找到特定/本地文件

我在本地安裝的庫存在問題。在我的項目存在XMLRPC++的0.7庫：如何通過CMake找到特定/本地文件

myproject/ 
+-- xmlrpc++0.7/ 
     +-- src/

我想CMake的使用本地XMLRPC，如果沒有找到，否則回退到++目錄0.7。兩個問題，第一個，find_path（）或find_library（）不適用於本地目錄。如果find_xxx（）處理的變量是空的，我使用變通方法測試。如果爲空，我手動設置它們。 cmake現在生成沒有錯誤的Makefile。但是如果我想通過make編譯項目，C++編譯器將返回「error：XmlRpc.h：file not found」。文件XmlRpc.h位於myproject/xmlrpC++ 0.7/src中，如果我手動編譯它們，它可以正常工作。

這是我的CMakeLists.txt。如果有人能夠在上述條件下指出使用cmake的正確解決方案，我非常高興。

--- ---的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)

來源

2011-01-11 Andreas Romeyke

find_library不關心局部/全局路徑，你給他們打電話。它將搜索您指定的路徑以查找。驗證您正在搜索的路徑是否正確。在你的問題你提到XMLRPC++ 0.7但是在你的CMakeLists.txt你看xmlrpc0.7 ++這可以解釋爲什麼它沒有找到。另外，如您所說，編譯器無法找到xmlrpc.h，但您使用xmlrpcserver.h來查找路徑。

來源

2011-01-11 15:17:29 David

Thx。這解釋了編譯錯誤。但本地路徑的問題仍然存在。如果我註釋瞭解決方法，路徑將被設置爲空。 BTW。 xmlrpc.h和xmlrpcserver.h位於相同的目錄中 – 2011-01-11 15:28:44

問題解決了。這裏是我的新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 
    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}].") 
add_library(tesseract STATIC IMPORTED) 
set_property(TARGET tesseract PROPERTY IMPORTED_LOCATION 
    ${TESSERACT_LIBRARY} 
    ) 
#find xmlrpc++ 
message(STATUS "cmake home dir: [${CMAKE_HOME_DIRECTORY}].") 
set(LOCAL_XMLRPCPLUSPLUS ${CMAKE_HOME_DIRECTORY}/xmlrpc++0.7/) 
message(STATUS "xmlrpc++ local dir: [${LOCAL_XMLRPCPLUSPLUS}].") 
find_path(XMLRPCPLUSPLUS_INCLUDE_DIR XmlRpc.h 
    ${LOCAL_XMLRPCPLUSPLUS}src 
    /opt/local/include 
    /usr/local/include 
    /usr/include 
    ) 
find_library(XMLRPCPLUSPLUS_LIBRARY 
    NAMES XmlRpc 
    PATHS 
    ${LOCAL_XMLRPCPLUSPLUS} 
    /opt/local/lib/ 
    /usr/local/lib/ 
    /usr/lib/ 
    ) 
message(STATUS "looked for xmlrpc++ library.") 
message(STATUS "Include file detected: [${XMLRPCPLUSPLUS_INCLUDE_DIR}].") 
message(STATUS "Lib file detected: [${XMLRPCPLUSPLUS_LIBRARY}].") 
add_library(xmlrpc STATIC IMPORTED) 
set_property(TARGET xmlrpc PROPERTY IMPORTED_LOCATION 
    ${XMLRPCPLUSPLUS_LIBRARY} 
    ) 
#### link together 
include_directories(${XMLRPCPLUSPLUS_INCLUDE_DIR} ${TESSERACT_INCLUDE_DIR}) 
link_directories(${XMLRPCPLUSPLUS_LIBRARY} ${TESSERACT_LIBRARY}) 
add_library(simpleocr STATIC simple_ocr.cpp) 
add_executable(webservice_tesseract webservice.cpp) 
target_link_libraries(webservice_tesseract xmlrpc tesseract simpleocr)

來源

2011-01-11 15:33:49

如何通過CMake找到特定/本地文件

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