我正在尝试用 cmake 构建一个子项目(它不是一个 xcode 项目,甚至不是一个 iPhone 应用程序,结果是跨平台控制台可执行文件,#includes 一些继承自 C++ 抽象类,用 objective-c++ 编写)
我正在使用本指南链接 mac 操作系统框架:http://www.vtk.org/Wiki/CMake:HowToUseExistingOSXFrameworks
和这个宏:
macro(ADD_FRAMEWORK fwname appname)
find_library(FRAMEWORK_${fwname}
NAMES ${fwname}
PATHS ${CMAKE_OSX_SYSROOT}/System/Library
PATH_SUFFIXES Frameworks
NO_DEFAULT_PATH)
if( ${FRAMEWORK_${fwname}} STREQUAL FRAMEWORK_${fwname}-NOTFOUND)
MESSAGE(ERROR ": Framework ${fwname} not found")
else()
TARGET_LINK_LIBRARIES(${appname} ${FRAMEWORK_${fwname}})
MESSAGE(STATUS "Framework ${fwname} found at ${FRAMEWORK_${fwname}}")
endif()
endmacro(ADD_FRAMEWORK)
这是CMakeLists.txt中的重要部分
project(myprojectname)
........
add_executable(mytarget src/mytarget.cpp)
add_framework(CoreMedia mytarget)
add_framework(CoreVideo mytarget)
add_framework(AVFoundation mytarget)
add_framework(Foundation mytarget)
........
这就是我在尝试构建时所拥有的:
WARNING: Target "mytarget" requests linking to directory "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/System/Library/Frameworks/CoreMedia.framework". Targets may link only to libraries. CMake is dropping the item.
WARNING: Target "mytarget" requests linking to directory "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/System/Library/Frameworks/CoreVideo.framework". Targets may link only to libraries. CMake is dropping the item.
WARNING: Target "mytarget" requests linking to directory "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/System/Library/Frameworks/AVFoundation.framework". Targets may link only to libraries. CMake is dropping the item.
WARNING: Target "mytarget" requests linking to directory "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk/System/Library/Frameworks/Foundation.framework". Targets may link only to libraries. CMake is dropping the item.
它实际上找到了所有这些框架,但无法链接,这会产生很多链接器错误。我很确定这就是原因,因为我使用 XCode 制作了一个 testproj,并且它有相同的错误,直到我链接了所有需要的框架。
刚用的时候
FIND_LIBRARY(COREMEDIA_LIB CoreMedia)
...
然后 COREMEDIA_LIB
设置为 NOTFOUND
- 这是怎么回事? :/
我在谷歌上搜索了很多但一无所获 :( 感觉很迷茫。
最佳答案
明白了:您必须不是TARGET_LINK_LIBRARIES
中的frameworkname.framework
文件夹,但是fwname.framework/fwname
文件!现在它以这种方式工作。
修改后的宏是这样的:
macro(ADD_FRAMEWORK fwname appname)
find_library(FRAMEWORK_${fwname}
NAMES ${fwname}
PATHS ${CMAKE_OSX_SYSROOT}/System/Library
PATH_SUFFIXES Frameworks
NO_DEFAULT_PATH)
if( ${FRAMEWORK_${fwname}} STREQUAL FRAMEWORK_${fwname}-NOTFOUND)
MESSAGE(ERROR ": Framework ${fwname} not found")
else()
TARGET_LINK_LIBRARIES(${appname} "${FRAMEWORK_${fwname}}/${fwname}")
MESSAGE(STATUS "Framework ${fwname} found at ${FRAMEWORK_${fwname}}")
endif()
endmacro(ADD_FRAMEWORK)
希望对某人有用...
关于ios - 无法将 MacOS 框架与 CMake 链接,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12547624/