OS X Lion 上的 32 位 OpenCV?可能的? [英] 32-bit OpenCV on OS X Lion? Possible?

问题描述

我已经用谷歌搜索并尝试了好几天，试图弄清楚如何让 32 位 OpenCV 在 OS X Lion 上运行，但只能找到 64 位版本.

所以我有以下问题:

OpenCV 库有 32 位或 64 位架构，对吗?

如何让 32 位 OpenCV 在 Lion 上运行?我尝试了以下方法:- 通过 MacPorts 安装 OpenCV:不，MacPorts 安装 64 位版本.BI 删除了 OpenCV 和 MacPorts.

• 通过 Homebrew 安装 OpenCV 2.4.1，使用以下命令:

brew install opencv --build32

但看起来它们也是 64 位的.删除了 OpenCV 和 Homebrew.

• 我自己使用标准的 unix makefile 安装 OpenCV 2.4.1.不，它们看起来仍然像 64 位.

我写了它们看起来像 64 位"，因为我必须在 OS X Snow Leopard 下制作的 Xcode 项目中替换 OpenC，针对 32 位 Mac，我总是收到大量错误，例如:

ld: 警告:忽略文件/usr/local/Cellar/opencv/2.4.1/lib/libopencv_calib3d.2.4.1.dylib，文件是为不受支持的文件格式构建的，这不是所链接的架构 (i386)

所以我想 OpenCV 的东西是 64 位的.如果我强制项目以 64 位运行，它会摩擦但无法正常工作并卡住.

是否有标准的方法来检查我的 OpenCV 库是 64 位还是 32 位?

从哪里可以获得 32 位 OpenCV?

解决方案

解决了问题.

总结:在 64 位 Mac OSX Lion 上可以有 32 位 OpenCV 库.

怎么样?

第一步:下载 OpenCV 2.4.0

第 2 步:下载并安装 CMake.

第 3 步:解压 OpenCV 包.

第 4 步:在 OpenCV 包内创建一个单独的目录用于构建

mkdir 构建光盘构建cmake -G "Unix Makefiles" -D CMAKE_OSX_ARCHITECTURES=i386 -D CMAKE_C_FLAGS=-m32 -D CMAKE_CXX_FLAGS=-m32 ..

(这将强制进行 32 位编译)

make -j8须藤制作安装

第 5 步:享受！

如需更多参考，请访问 Mac OS X OpenCV 端口页面

感谢大家让我走上正轨:

@karlphilip:我试着按照你的建议去做，但是没有 make 选项编译阶段会失败，因为架构不连贯.

@hamstergene:MacPorts 在新安装后卡住了，也许我还有一些旧安装的残留 :((奇怪，我按照官方说明删除了它).

@Adrien:这就是我所做的，但我不得不合并两种方法:)

I've been googling and trying for days now, trying to figure out how to get 32-bit OpenCV working on OS X Lion, but can just find 64-bit version.

So i have the following questions:

OpenCV libraries come in 32-bit or 64-bit arch, is that correct?

How do I get 32-bit OpenCV working on Lion? I've trying the following ways: - Install OpenCV via MacPorts: nope, MacPorts installs a 64-bit version.BI removed OpenCV and MacPorts.

• Install OpenCV 2.4.1 via Homebrew, using the following command:

brew install opencv --build32

but looks like they are 64-bit too. Removed OpenCV and Homebrew.

• Install OpenCV 2.4.1 by myself using standard unix makefiles. Nope, they still look like 64-bit.

I've written "they look like 64-bit" because i have to replace OpenC in a Xcode project made under OS X Snow Leopard, targeted for 32-bit Mac, and I always get tons of errors like:

ld: warning: ignoring file /usr/local/Cellar/opencv/2.4.1/lib/libopencv_calib3d.2.4.1.dylib, file was built for unsupported file format which is not the architecture being linked (i386)

so i suppose that the OpenCV stuff is 64-bit. If i force the project to run in 64-bit, it rubs but doesn't work properly and gets stuck.

Is there a standard way to check if my OpenCV libraries are 64-bit or 32-bit?

Where can i get 32-bit OpenCV?

解决方案

Solved the problem.

Recap: it is possible to have 32-bit OpenCV libraries on 64-bit Mac OSX Lion.

How?

Step 1: Download OpenCV 2.4.0

Step 2: Download and install CMake.

Step 3: Untar the OpenCV package.

Step 4: Make a separate directory inside the OpenCV package for building

mkdir build
cd build
cmake -G "Unix Makefiles" -D CMAKE_OSX_ARCHITECTURES=i386 -D CMAKE_C_FLAGS=-m32 -D CMAKE_CXX_FLAGS=-m32 ..

(this will force the 32-bit compile)

make -j8
sudo make install

Step 5: Enjoy!

For forther reference please visit Mac OS X OpenCV Port Page

Thanks all for putting me on the right track:

@karlphilip: I tried to do as you suggested, but without the make options the compile phase fails, because the architectures are incoherent.

@hamstergene: MacPorts got stuck after the new installation, maybe I have some remains of the older install :( (strange, i followed the official instrusctions to remove it).

@Adrien: That's what I've done, but i had to merge 2 approaches :)

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