1º我创建了一个使用Cmake使用OpenCV2.framework foo的项目,使用foo.a创建一个XCode项目.我的可执行文件链接OpenCV2.framework foo.a并且完美地工作,编译和链接.

2º我用Ogre的模板创建了另一个项目.这个项目工作得很好.

3º然后,我尝试将foo.a添加到新项目中,以创建与我在第1步中使用的可执行文件相同的内容.

>添加包括标题搜索路径的路径.
>将库路径添加到库搜索路径.
>将-ObjC -all_load -lfoo添加到其他链接器路径,如This和this
>添加项目中所需的代码源.
>当我使用foo函数调用时 – >链接问题：架构armv7到foo :: functionname()的未定义符号.

>信息：
>那个电话就像第一个项目那样有效.
>使用otool -hv foo.a – >我看到cputype是所有lib.o的ARV V7
>使用lipo -info foo.a – >当我使用那个拱门时,我看到foo.a是armv7或armv7s.
>使用nm foo.a | grep functionname – >我在编译两个arch时看到函数在armv7和armv7s中的库中.

那么,如果库在另一个项目中工作,并且函数在里面,为什么链接问题呢？

>信息2：
>将foo目标添加到食人魔的项目中,同样的问题.遵循THIS方法.
>添加目标依赖项也不起作用.

编译此示例的我的CmakeList是：

# /////////////////////////////////////////////////////////
 # //SAMPLE 
 # /////////////////////////////////////////////////////////

 # 3rdParty (OGRE LOCATION)
set(OGRE_SDK_ROOT /Users/vgoni/Librerias/ogre1.9-pre/OgreSDK/ CACHE PATH "Ogre SDK ROOT")
set(OGRE_DEPENDENCIES_DIR ${OGRE_SDK_ROOT}/iOSDependencies CACHE PATH "Ogre SDK DEP")

 # Set up project
SET(PROJ_NAME ogreIOS)

PROJECT( ${PROJ_NAME} )
SET(PRODUCT_NAME ${PROJ_NAME})
SET(EXECUTABLE_NAME ${PROJ_NAME}Executable)

 # Add variable to generate iphone project in ADD_EXECUTABLE
SET(APP_TYPE MACOSX_BUNDLE)

 # Headers
SET(${PROJ_NAME}_HEADERS
    include/OgreStaticPluginLoader.h
    include/OgreDemoApp.h
    include/OgreFramework.h
    include/AppDelegate.h
    )

 # Source
SET(${PROJ_NAME}_SRC
    src/OgreFramework.cpp
    src/OgreDemoApp.cpp
    src/main.mm
)

 # Add there files to Resources package into XCODE
SET_SOURCE_FILES_PROPERTIES(
    resources/ogre.cfg
    resources/plugins.cfg
    resources/resources.cfg
    resources/ogreiosSample-Info.plist
    resources/ogreiosSample-Prefix.pch
    resources/en.lproj/InfoPlist.strings
    PROPERTIES
    MACOSX_PACKAGE_LOCATION Resources
)
 # Include self directories
INCLUDE_DIRECTORIES( include )

 # Include OGRE headers needed
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include/OIS )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include/OGRE )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include/OGRE/Overlay )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include/OGRE/iOS )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include/OGRE/RTShaderSystem )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/include/OGRE/RenderSystems/GLES2 )
INCLUDE_DIRECTORIES( ${OGRE_SDK_ROOT}/iOSDependencies/include )

 # Link Directories where libraries needed are
LINK_DIRECTORIES( ${OGRE_SDK_ROOT}/lib/Release )
LINK_DIRECTORIES( ${OGRE_SDK_ROOT}/iOSDependencies/lib )
LINK_DIRECTORIES( ${OGRE_SDK_ROOT}/iOSDependencies/lib/Release )

 # Add ogre & boots libraries flags
SET (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -lmesaglsl2 -lboost_system -lboost_chrono -lboost_date_time -lboost_thread -lFreeType -lFreeImage -lzzip -lz -lc++ -lforce_load -lfoo")
 # foo is my library,force to load all to avoid fail in linking

 # 3rdParty ogre libraries
SET(OGRE_LIBS OIS OgreMainStatic RenderSystem_GLES2Static OgreRTShaderSystemStatic ) 

 # Link the libraries needed
 #TARGET_LINK_LIBRARIES (${PROJ_NAME} ${OGRE_LIBS})

 # Create executable for iOS
ADD_EXECUTABLE(
    ${EXECUTABLE_NAME}
        ${APP_TYPE}
        ${${PROJ_NAME}_HEADERS}
        ${${PROJ_NAME}_SRC}
)

 # Adding info to XCode project
 #set_target_properties(${EXECUTABLE_NAME}  PROPERTIES 
    #MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/resources/Info.plist)

 # Change name to make work Macros
SET(PROJ_NAME ogreIOSExecutable) 

 # Macro to add frameworks to Sample Executable
link_ios_framework(AssetsLibrary    ${EXECUTABLE_NAME})
link_ios_framework(AVFoundation     ${EXECUTABLE_NAME})
link_ios_framework(CoreMedia        ${EXECUTABLE_NAME})
link_ios_framework(CoreGraphics     ${EXECUTABLE_NAME})
link_ios_framework(CoreVideo        ${EXECUTABLE_NAME})
link_ios_framework(ImageIO          ${EXECUTABLE_NAME})
link_ios_framework(Foundation       ${EXECUTABLE_NAME})
link_ios_framework(OpenGLES         ${EXECUTABLE_NAME})
link_ios_framework(QuartzCore       ${EXECUTABLE_NAME})
link_ios_framework(UIKit            ${EXECUTABLE_NAME})

 # Needed dependencies
link_ios_sdk(libc++.1.dylib ${EXECUTABLE_NAME})
link_ios_sdk(libz.dylib ${EXECUTABLE_NAME})

 #Add OpenCV Libraries to link
TARGET_LINK_LIBRARIES (${PROJ_NAME} ${OpenCV_LIBS})

LINK_DIRECTORIES(
    ${LIBRARY_OUTPUT_PATH}
)