kalpna thakur asked . 2021-09-18

Simulink library linking error

Hi all,

I have the following situation:

1) I have a sfunction builder block, where I have defined a function in C, which uses external library (libxml2 to be precise). I use visual studio 2010 to compile the sfunction.

2) I am able to build the sfunction, and when I simulate/run on computer, the system responds the way I want it.

3) Trying to build the model though creates an error.

LINKING APPLICATION ... 
< lnkppc > 
(E) #A0368-D Unresolved external: 
    xmlParseDoc (first referenced in module: parse.o50) 
    xmlCharStrdup (first referenced in module: parse.o50) 
    xmlDocGetRootElement (first referenced in module: parse.o50) 
 Errors: 1, Warnings: 0 
-- call "C:\SW\dSPACE RCPHIL 7.4\Compiler\PPCTools37\BIN\lnkppc.exe"  -K0 -QmsA0314 -QmeA0307 -QmeA0329 -m..\test_parser.map -o ..\test_parser.ppc -c _tmp_test_parser.lk  
LINKING FAILED (1) 

MAKE PROCESS ABORTED

external library , dspace , rti1005 , linking error , library , simulink , .dll, sfunction

Expert Answer

Neeta Dsouza answered . 2024-12-21 01:10:34

In case anybody experiences the same problem as me:

What I did was to change the used library. Because I deploy he project on a platform which does not support win32 libraries, I had to include the source files of the library.

Also, in the Code Generation: I set as make command:

make_rti LNK_OPTS="-QmsA0314"

At last, do not forget to include all the libraries and any source files in: Code Generation/Custom Code/

These were enough to get my project running (although a major overhaul).

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