Question

更新：我在mexopts.sh中安装了XCode并更改了SDKROOT以反映here所述的实际路径，但是当我包含mex.h时仍然会出现此错误：

In file included from /Applications/MATLAB_R2012b.app/extern/include/matrix.h:294,
                 from /Applications/MATLAB_R2012b.app/extern/include/mex.h:58,
                 from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/tmwtypes.h:61:21: error: float.h: No such file or directory

    mex: compile of ' "test.c"' failed.

我正在尝试通过mex编译一个简单的C文件以供在Matlab中使用，但它似乎永远找不到我知道安装的默认库。例如，尝试编译以下内容：

#include <string.h>
int main() {
    return 0;
}

给我错误：

test.c:1:20: error: string.h: No such file or directory
mex: compile of ' "test.c"' failed.

即使使用gcc编译也很好。更糟糕的是，当我尝试将mex.h包括在内时：

#include "mex.h"
int main() {
    return 0;
}

我收到以下错误：

In file included from /Applications/MATLAB_R2012b.app/extern/include/mex.h:58,
                 from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:293:20: error: stddef.h: No such file or directory
In file included from /Applications/MATLAB_R2012b.app/extern/include/matrix.h:294,
                 from /Applications/MATLAB_R2012b.app/extern/include/mex.h:58,
                 from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/tmwtypes.h:43:20: error: limits.h: No such file or directory
/Applications/MATLAB_R2012b.app/extern/include/tmwtypes.h:46:21: error: stdbool.h: No such file or directory
/Applications/MATLAB_R2012b.app/extern/include/tmwtypes.h:61:21: error: float.h: No such file or directory
/Applications/MATLAB_R2012b.app/extern/include/tmwtypes.h:777:2: error: #error "This code must be compiled using a 2's complement representation for signed integer values"
In file included from /Applications/MATLAB_R2012b.app/extern/include/matrix.h:294,
                 from /Applications/MATLAB_R2012b.app/extern/include/mex.h:58,
                 from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/tmwtypes.h:823: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'CHAR16_T'
In file included from /Applications/MATLAB_R2012b.app/extern/include/mex.h:58,
                 from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:319: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'mxChar'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:375: error: expected ')' before 'n'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:383: error: expected ')' before 'n'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:397: error: expected declaration specifiers or '...' before 'size_t'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:590: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'mxGetNumberOfElements'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:632: error: expected '=', ',', ';', 'asm' or '__attribute__' before '*' token
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:688: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'mxGetM'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:700: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'mxGetN'
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:750: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'mxGetElementSize'
In file included from /Applications/MATLAB_R2012b.app/extern/include/mex.h:58,
             from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:851:20: error: stdlib.h: No such file or directory
/Applications/MATLAB_R2012b.app/extern/include/matrix.h:1072: error: expected ')' before 'm'
In file included from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/mex.h:91: error: expected specifier-qualifier-list before 'size_t'
In file included from test.c:2:
/Applications/MATLAB_R2012b.app/extern/include/mex.h:161:19: error: stdio.h: No such file or directory

    mex: compile of ' "test.c"' failed.

我认为mex没有找到这些库的正确位置，或者安装在某种程度上已损坏，但我不知道如何修复它。

Mac OSX Mountain Lion + XCode 4.5.2，Matlab R2012b，gcc 4.2.1

Answer 1

包含文件需要位于 PATH （键入 path 以显示这些文件夹），除非您使用 mex -Ipathname <具体包含它们/ em>的。您可以单击“文件 - >设置路径”并添加包含string.h的文件夹。

Answer 2

只是为了分享，我遇到了类似的问题。我正在运行相同版本的Matlab，正在查看此页面，但找不到答案。我在这里找到了答案：Matlab 2012a Mex to work with Xcode 4.5 on Mountain Lion

Answer 3

使用mex命令指定以下选项，它将正常工作。请确保您在以下文件夹中有标准的头文件，否则请相应更新：

mex -I'C:\Program Files (x86)\Windows Kits\10\Include\10.0.10150.0\ucrt'.

如果您遇到此错误，它也可能会损坏.lib。包括类似的

mex -I'C:\Program Files (x86)\Windows Kits\10\Include\10.0.10150.0\ucrt' -L'C:\Program Files (x86)\Windows Kits\10\Lib\10.0.10150.0\ucrt\x64'

在Matlab中编译mex文件时找不到标准C库

3 个答案: