Simulink S-Function 与 C++代码可以编译，但在生成/设置时出现错误
我有一个 C++ 例程，想将其打包到 Simulink S-Function 中。此 C++ 例程调用其他几个 C++ 文件中的其他例程。
我可以使用legacy_code 工具设法编译所有内容（即生成mexglx 文件）。但是，发出以下警告：
Warning: You are using gcc version "4.4.4-14ubuntu5)". The earliest gcc version
supported with mex is "4.1". The latest version tested for use with mex
is "4.2". To download a different version of gcc, visit http://gcc.gnu.org
当我尝试通过发出命令生成 S-Function 块时，出现问题：
legacy_code('slblock_generate', def);
此时，出现以下提及 GLIBCXX 版本的错误：
??? Error using ==> iAddSfunctionBlock at 183
Error due to multiple causes.
Error in ==>
/opt/matlab/toolbox/simulink/simulink/+legacycode/@LCT/generateslblock.p>
generateslblock at 55
Error in ==> /opt/matlab/toolbox/simulink/simulink/legacy_code.p>legacy_code at
160
Caused by:
Error using ==> iAddSfunctionBlock at 183
Invalid MEX-file 'sfun_vectorRotation_b.mexglx':
/opt/matlab/bin/glnx86/../../sys/os/glnx86/libstdc++.so.6: version
`GLIBCXX_3.4.11' not found (required by sfun_vectorRotation_b.mexglx).
Error using ==> iAddSfunctionBlock at 183
Error while obtaining sizes from MEX S-function 'sfun_vectorRotation_b' in
'untitled1/sfun_vectorRotation_b'. MATLAB error message:
Invalid MEX-file 'sfun_vectorRotation_b.mexglx':
/opt/matlab/bin/glnx86/../../sys/os/glnx86/libstdc++.so.6: version
`GLIBCXX_3.4.11' not found (required by sfun_vectorRotation_b.mexglx).
老实说，此时我有点迷失。我不知道降级 g++ 编译器是否足够，或者我是否必须做一些其他事情。您对这个问题有可能的解决方案吗？
我在 Ubuntu 10.10 操作系统中使用 Matlab 2009b，g++ 版本是：
g++ (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
提前非常感谢
Miquel
I have a C++ routine that I would like to pack in a Simulink S-Function. This C++ routines calls other routines that are in several other C++ files.
I could manage to have everything compiled (i.e. the mexglx file is generated) using the legacy_code tool. However, the following warning is issued:
Warning: You are using gcc version "4.4.4-14ubuntu5)". The earliest gcc version
supported with mex is "4.1". The latest version tested for use with mex
is "4.2". To download a different version of gcc, visit http://gcc.gnu.org
The problem arises when I try to generate the S-Function block by issuing the command:
legacy_code('slblock_generate', def);
At this point, the following error mentioning the GLIBCXX version is raised:
??? Error using ==> iAddSfunctionBlock at 183
Error due to multiple causes.
Error in ==>
/opt/matlab/toolbox/simulink/simulink/+legacycode/@LCT/generateslblock.p>
generateslblock at 55
Error in ==> /opt/matlab/toolbox/simulink/simulink/legacy_code.p>legacy_code at
160
Caused by:
Error using ==> iAddSfunctionBlock at 183
Invalid MEX-file 'sfun_vectorRotation_b.mexglx':
/opt/matlab/bin/glnx86/../../sys/os/glnx86/libstdc++.so.6: version
`GLIBCXX_3.4.11' not found (required by sfun_vectorRotation_b.mexglx).
Error using ==> iAddSfunctionBlock at 183
Error while obtaining sizes from MEX S-function 'sfun_vectorRotation_b' in
'untitled1/sfun_vectorRotation_b'. MATLAB error message:
Invalid MEX-file 'sfun_vectorRotation_b.mexglx':
/opt/matlab/bin/glnx86/../../sys/os/glnx86/libstdc++.so.6: version
`GLIBCXX_3.4.11' not found (required by sfun_vectorRotation_b.mexglx).
Honestly I am a bit lost at this point. I do not know if downgrading the g++ compilator would be enough or if I have to do some other things. Do you have a possible solution for this issue?
I am using Matlab 2009b in an Ubuntu 10.10 OS, and the g++ version is:
g++ (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
Thanks a lot in advance
Miquel
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评论（1）
终于我可以自己解决这个问题了。只需下载并安装（通过
./configure、make和make install）受支持的 gcc 版本（4.1 到 4.2 之间的任何版本都可以） 。就我而言，我尝试了 gcc-4.2 并且工作正常。无论如何，谢谢！
米盖尔
Finally I could solve the problem myself. Just download and install (via
./configure,makeandmake install) a supported version of gcc (anyone between 4.1 and 4.2 will do). In my case I tried gcc-4.2 and it works fine.Thanks anyway!
Miquel