"collect2.exe: error: Id returned 1 exit status" when building S-function

Question

MathWorks Support Team 2022-1-26

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1652320-collect2-exe-error-id-returned-1-exit-status-when-building-s-function

回答： MathWorks Support Team 2022-2-17

I am trying to build an S-function for use in a Simulink model on my Windows machine. But when I try to build it, I get an error that looks like this:

C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x316): undefined reference to `__imp_closesocket'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x323): undefined reference to `__imp_WSACleanup'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x401): undefined reference to `__imp_recv'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x5a3): undefined reference to `__imp_WSAStartup'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x5c1): undefined reference to `__imp_gethostbyname'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x5e7): undefined reference to `__imp_htons'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x615): undefined reference to `__imp_socket'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x61c): undefined reference to `__imp_connect'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x742): undefined reference to `__imp_WSAGetLastError'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0xfdd): undefined reference to `__imp_recv'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x3987): undefined reference to `__imp_closesocket'
C:\Users\xxx\AppData\Local\Temp\mex_6822034771356968_15704\SourceCode.obj:SourceCode.c:(.text+0x398d): undefined reference to `__imp_WSACleanup'
collect2.exe: error: ld returned 1 exit status

It does not seem to matter whether I use the command line or the S-function builder. My colleagues seem able to build the function, so it does not appear to be a bug.

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