How to find specific / local files through CMake

Question

I have a problem with a locally installed library. There is xmlrpC ++ 0.7 library in my project:

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

I want CMake to return using the local xmlrpC ++ 0.7 directory, unless otherwise found. Two problems, the first, find_path () or find_library () do not work with the local dir. I used a workaround if the variables handled by find_xxx () are empty or not. If empty, I install them manually. Now cmake generates a Makefile without errors. But if I want to compile the project using make, the C ++ compiler returns "error: XmlRpc.h: file not found". The XmlRpc.h file is located in myproject / xmlrpC ++ 0.7 / src, and if I compile all of them manually, it works fine.

Here is my CMakeLists.txt. I am very happy if anyone could point out the right decision to use cmake in the conditions described above.

--- 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)

Answer 1

find_library / , . , . , , , . xmlrp++ 0.7, cmakelists.txt xmlrpc0.7 ++, , . , , xmlrpc.h, xmlrpcserver.h .

Answer 2

. 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)