如何使用 Eclipse 编译 32 位
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How to compile for 32bit with Eclipse
提问by Basil
I'm currently writing a little program in c++ on my 64bit Ubuntu Pc. By default eclipse compiles the program for a 64bit architecture. Since I want to use my little program on my server which is still 32bit, I need to be able to compile my program for 32bit. How could can I do that in eclipse? I've been fiddling for a while with the settings but nothing worked...
我目前正在我的 64 位 Ubuntu Pc 上用 C++ 编写一个小程序。默认情况下，eclipse 为 64 位体系结构编译程序。由于我想在仍然是 32 位的服务器上使用我的小程序，因此我需要能够为 32 位编译我的程序。我怎么能在日食中做到这一点？我一直在摆弄设置，但没有任何效果......
Cheers
干杯
回答by Basil
I found the answer myself, after lots of searching and trying things out. This is a solution that works if you happen to have the same problem. For this to work the following packages have to be installed:
经过大量搜索和尝试，我自己找到了答案。如果您碰巧遇到同样的问题，这是一个有效的解决方案。为此，必须安装以下软件包：
gcc/g++ with multilib
ia32-libs
带有 multilib 的 gcc/g++
ia32-libs
Then right click on your project, and select "properties". Go to "C/C++ Build" and choose "settings". Under "GCC/G++ Compiler" add "-m32" to the command field (the field should now say "g++ -m32"). Do the same for "GCC/G++ Linker".
然后右键单击您的项目，并选择“属性”。转到“C/C++ Build”并选择“设置”。在“GCC/G++ Compiler”下的命令字段中添加“-m32”（该字段现在应该显示为“g++ -m32”）。对“GCC/G++ 链接器”执行相同操作。
Now that you have added the flag, this should be compiled for 32bit. I'm using Eclipse Galileo, for the case that your interface looks different. I only added the "-m32" flag only under the "Release" profile, so my "Debug" builds are still 64bit.
现在您已经添加了标志，这应该被编译为 32 位。我正在使用 Eclipse Galileo，因为您的界面看起来不同。我只在“发布”配置文件下添加了“-m32”标志，所以我的“调试”版本仍然是 64 位。
回答by Olly
For those looking how to install the libraries mentioned by Basil on Linux (Ubuntu)
对于那些寻找如何在 Linux (Ubuntu) 上安装 Basil 提到的库的人
$ apt-get install lib32gcc1 libc6-i386 lib32z1 lib32stdc++6
$ apt-get install lib32gcc1 libc6-i386 lib32z1 lib32stdc++6
$ apt-get install lib32asound2 lib32ncurses5 lib32gomp1 lib32z1-dev lib32bz2-dev
$ apt-get install lib32asound2 lib32ncurses5 lib32gomp1 lib32z1-dev lib32bz2-dev
$ apt-get install g++-multilib
$ apt-get install g++-multilib
Source: http://sixarm.com/about/ubuntu-apt-get-install-ia32-for-32-bit-on-64-bit.html
来源：http: //sixarm.com/about/ubuntu-apt-get-install-ia32-for-32-bit-on-64-bit.html
