Question

所以我是过去几个月一直在学习python的诺布。我最近发现了一个名为PyWiiUse的python库，想用它来做一些有趣的WiiMote。由于库只是C库WiiUse的包装器，我发现在开始任何操作之前我必须安装这两个库。

我有一台运行山狮的mac，我在编译和安装WiiUse库时遇到了一些麻烦。 README说使用cmake为源代码生成MakeFile。我在安装cmake，xcode和xcode命令行工具后运行了以下命令。

cd /build_directory
cmake /source_directory
make
make install

cmake成功制作了一个MakeFile，并构建了gnu make软件并安装了一个静态库“libwiiuse.a”和头文件“wiiuse.h”。静态库安装到/ usr / local / lib，头文件安装到/ usr / local / include。

我不知道如何处理stative库。 README文件让我相信我会以libwiiuse.so的形式获得一个链接库。我读了静态库并了解到它们只是编译代码的档案。我将.o文件从存档中解压缩到名为libwiiuse的文件夹中，并运行以下代码：

gcc -shared -o libwiiuse.so io.o os_mac_find.o classic.o ir.o os_mac_interface.o dynamics.o motion_plus.o util.o events.o nunchuk.o wiiboard.o guitar_hero_3.o os_mac.o wiiuse.o

我试图将所有“.o”（对象？）文件编译成一个“.so”（共享对象？）文件。我得到的结果出人意料。

Undefined symbols for architecture x86_64:
"_IOBluetoothNSStringFromDeviceAddress", referenced from:
  -[WiiuseDeviceInquiry collectResultsOf:] in os_mac_find.o
"_NSDefaultRunLoopMode", referenced from:
  -[WiiuseDeviceInquiry wait] in os_mac_find.o
  -[WiiuseWiimote waitForIncomingData:] in os_mac.o
"_OBJC_CLASS_$_IOBluetoothDeviceInquiry", referenced from:
  objc-class-ref in os_mac_find.o
_OBJC_CLASS_$_IOBluetoothHostController", referenced from:
  objc-class-ref in os_mac_find.o
"_OBJC_CLASS_$_NSAutoreleasePool", referenced from:
  objc-class-ref in os_mac_find.o
  objc-class-ref in os_mac_interface.o
  objc-class-ref in os_mac.o
"_OBJC_CLASS_$_NSData", referenced from:
  objc-class-ref in os_mac.o
"_OBJC_CLASS_$_NSDate", referenced from:
  objc-class-ref in os_mac_find.o
  objc-class-ref in os_mac.o
"_OBJC_CLASS_$_NSLock", referenced from:
  objc-class-ref in os_mac.o
"_OBJC_CLASS_$_NSMutableArray", referenced from:
  objc-class-ref in os_mac.o
"_OBJC_CLASS_$_NSObject", referenced from:
  _OBJC_CLASS_$_WiiuseDeviceInquiry in os_mac_find.o
  _OBJC_CLASS_$_WiiuseWiimote in os_mac.o
  _OBJC_CLASS_$_WiiuseDisconnectionMessage in os_mac.o
  _OBJC_CLASS_$_WiiuseReceivedData in os_mac.o
"_OBJC_CLASS_$_NSRunLoop", referenced from:
  objc-class-ref in os_mac_find.o
  objc-class-ref in os_mac.o
"_OBJC_METACLASS_$_NSObject", referenced from:
  _OBJC_METACLASS_$_WiiuseDeviceInquiry in os_mac_find.o
  _OBJC_METACLASS_$_WiiuseWiimote in os_mac.o
  _OBJC_METACLASS_$_WiiuseReceivedData in os_mac.o
  _OBJC_METACLASS_$_WiiuseDisconnectionMessage in os_mac.o
"__objc_empty_cache", referenced from:
  _OBJC_CLASS_$_WiiuseDeviceInquiry in os_mac_find.o
  _OBJC_METACLASS_$_WiiuseDeviceInquiry in os_mac_find.o
  _OBJC_CLASS_$_WiiuseWiimote in os_mac.o
  _OBJC_CLASS_$_WiiuseDisconnectionMessage in os_mac.o
  _OBJC_CLASS_$_WiiuseReceivedData in os_mac.o
  _OBJC_METACLASS_$_WiiuseWiimote in os_mac.o
  _OBJC_METACLASS_$_WiiuseReceivedData in os_mac.o
  ...
"__objc_empty_vtable", referenced from:
  _OBJC_CLASS_$_WiiuseDeviceInquiry in os_mac_find.o
  _OBJC_METACLASS_$_WiiuseDeviceInquiry in os_mac_find.o
  _OBJC_CLASS_$_WiiuseWiimote in os_mac.o
  _OBJC_CLASS_$_WiiuseDisconnectionMessage in os_mac.o
  _OBJC_CLASS_$_WiiuseReceivedData in os_mac.o
  _OBJC_METACLASS_$_WiiuseWiimote in os_mac.o
  _OBJC_METACLASS_$_WiiuseReceivedData in os_mac.o
  ...
"_objc_msgSend", referenced from:
  -[WiiuseDeviceInquiry initWithMemory:maxDevices:timeout:] in os_mac_find.o
  -[WiiuseDeviceInquiry start] in os_mac_find.o
  -[WiiuseDeviceInquiry wait] in os_mac_find.o
  -[WiiuseDeviceInquiry collectResultsOf:] in os_mac_find.o
  -[WiiuseDeviceInquiry run] in os_mac_find.o
  _wiiuse_os_find in os_mac_find.o
  _wiiuse_os_connect_single in os_mac_interface.o
  ...
"_objc_msgSendSuper2", referenced from:
  -[WiiuseDeviceInquiry initWithMemory:maxDevices:timeout:] in os_mac_find.o
  -[WiiuseWiimote initWithPtr:device:] in os_mac.o
  -[WiiuseWiimote dealloc] in os_mac.o
  -[WiiuseReceivedData initWithData:] in os_mac.o
  -[WiiuseReceivedData dealloc] in os_mac.o
"_objc_msgSend_fixup", referenced from:
  l_objc_msgSend_fixup_release in os_mac_find.o
  l_objc_msgSend_fixup_count in os_mac_find.o
  l_objc_msgSend_fixup_objectAtIndex_ in os_mac_find.o
  l_objc_msgSend_fixup_alloc in os_mac_find.o
  l_objc_msgSend_fixup_alloc in os_mac_interface.o
  l_objc_msgSend_fixup_release in os_mac_interface.o
  l_objc_msgSend_fixup_retain in os_mac.o
  ...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

所以我几乎被困在这里。我不确定目标文件是否为X86 64架构构建，因此我在所有文件上运行“file”命令，并为每个文件获得相同的结果。

Mach-O 64-bit object x86_64

我知道自己想要做什么可能很容易，但我一直在努力。任何人都可以帮助我吗？

Answer 1

在Mac上链接静态wiiuse.a库时，还需要链接一些Apple框架。尝试将以下内容添加到CMakeLists.txt：

set(PLATFORM_LIBS)
if(APPLE)
    find_library(IOBLUETOOTH_FRAMEWORK
        NAMES
        IOBluetooth)
    find_library(COREFOUNDATION_FRAMEWORK
        NAMES
        CoreFoundation)
    find_library(FOUNDATION_FRAMEWORK
        NAMES
        Foundation)
    list(APPEND PLATFORM_LIBS
        ${IOBLUETOOTH_FRAMEWORK}
        ${COREFOUNDATION_FRAMEWORK}
        ${FOUNDATION_FRAMEWORK})
endif(APPLE)

然后，在创建目标之后，cmake link命令看起来像......

target_link_libraries(${target}
    ${WIIUSE_LIB}
    ${PLATFORM_LIBS})

（我认为静态lib会为我们解决这个问题，但我错了。）

编译一个C库，用于mac OSX 10.8上的python包装器

1 个答案: