Integrating C++ into MATLAB

>> build(definerectangle1)

正在编译接口文件 "rectangle1Interface.dll"。

错误使用 clibgen.internal.buildHelper (line 61)

编译失败并显示错误:

'C:/ProgramData/MATLAB/SupportPackages/R2019a/3P.instrset/mingw_w64.instrset/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:

cannot find -l-LE:\Matlab2019a\extern\lib\win64\mingw64

C:/ProgramData/MATLAB/SupportPackages/R2019a/3P.instrset/mingw_w64.instrset/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:

cannot find -llibMatlabDataArray

collect2.exe: error: ld returned 1 exit status

'。

出错 clibgen.LibraryDefinition/build (line 413)

clibgen.internal.buildHelper(obj, obj.LibraryInterface, '', directBuild);

Answer 1

[Anjaneyulu Bairi]

Hi,

The error message you are encountering seems to be a issue with linking libraries during the build process. Here are some steps to troubleshoot the issue:

• Make sure the MATLAB Compielr is correctly setup and configured properly. Run below command to check the setup and ensure the MinGW-w64 compiler is installed and selected.

mex -setup

• In error message, it says wrong usage of buildHelper. Refer the following documenation link to know the correct usage of buildHelper function in your code: https://www.mathworks.com/help/matlab/ref/clibgen.librarydefinition.build.html
• For more information on publishing a MATLAB Interface to a C++ Library, refer the following official documenation link: https://www.mathworks.com/help/matlab/matlab_external/steps-to-publish-a-matlab-interface-to-a-c-library.html

Hope it helps!