install_name_tool格式错误的对象(加载命令23 cmdsize为零)-Mac OS X Yosemite

Question

在Yosemite上安装cunn for torch失败，出现错误的对象。

 -- Install configuration: "Release"
-- Installing: /usr/local/lib/luarocks/rocks/cunn/scm-1/lib/libcunn.so
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: object: /usr/local/lib/luarocks/rocks/cunn/scm-1/lib/libcunn.so malformed object (load command 23 cmdsize is zero)
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: object: /usr/local/lib/luarocks/rocks/cunn/scm-1/lib/libcunn.so malformed object (load command 23 cmdsize is zero)
-- Installing: /usr/local/lib/luarocks/rocks/cunn/scm-1/lua/cunn/init.lua
-- Installing: /usr/local/lib/luarocks/rocks/cunn/scm-1/lua/cunn/test.lua
Updating manifest for /usr/local/lib/luarocks/rocks
cunn scm-1 is now built and installed in /usr/local/ (license: BSD)

联机搜索显示这与库损坏或install_name_tool更新有关。我将XCode（6.1）中的install_name_tool替换到/usr/bin中，但仍然收到相同的错误。以下是一些诊断

$ ls -l $(which install_name_tool)
-rwxr-xr-x  1 root  admin  14192 Nov  8 11:25 /opt/local/bin/install_name_tool
$ otool -L /usr/bin/install_name_tool
/usr/bin/install_name_tool:
    /usr/lib/libxcselect.dylib (compatibility version 1.0.0, current version 1.0.0)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1213.0.0)

$ pkgutil --file-info /usr/bin/install_name_tool
volume: /
path: /usr/bin/install_name_tool
pkgid: com.apple.pkg.Essentials
pkg-version: 10.10.0.1.1.1412852630
install-time: 1413599255
uid: 0
gid: 0
mode: 755

我需要这个来工作，这样我就可以用CUDA和手电筒了，我已经花了几个小时了，请帮忙。

Answer 1

我遇到了同样的问题，我通过在本地构建libcunn.so来解决它。运行以下命令：

git clone https://github.com/torch/cunn.git
ls cunn
cmake -E make_directory build
cd build/
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/usr/local/bin/.." -DCMAKE_INSTALL_PREFIX="/usr/local/lib/luarocks/rocks/cunn/scm-1" && make

那么你应该有

Linking CXX shared module libcunn.so

然后只需将库复制到目标文件夹：

cp libcunn.so /usr/local/lib/lua/5.1/libcunn.so