Matlab Coder Stand Alone Executable Linking Third Party Libs
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I have the following file example from the coder page,
function core()
fprintf("Hello World!!\n");
coder.updateBuildInfo('addCompileFlags','-lcurl');
coder.updateBuildInfo('addSourceFiles','foo.c');
y = 0;
y = coder.ceval('foo', 10, 20);
fprintf("%f\n", y);
end
That I am trying to link libcurl into final executable. I supply the following main.c file,
#include <stdio.h>
#include <stdlib.h>
#include "core_initialize.h"
#include "core.h"
#include "core_terminate.h"
int main()
{
core_initialize();
core();
core_terminate();
return 0;
}
with the following foo.c
#include <stdio.h>
#include <stdlib.h>
#include <curl/curl.h>
double foo(double in1, double in2)
{
return in1 + in2;
}
int call(){
CURL *curl;
CURLcode res;
curl = curl_easy_init();
}
It only uses curl_easy_init just to test linking it does do anything usefull.
Then use the following commands to build the standalone executable on linux (libcurl is present on the system along with gcc i can compile programs linking curl just fine from bash).
cfg = coder.config('exe');
cfg.CustomSource = 'main.c';
cfg.CustomInclude = ['"',pwd,'"'];
codegen -config cfg -report core
At the final linking stage it fails with undefined reference to curl easy init. If i edit the make file manually and add -lcurl to SYSTEM_LIBS variable along with -lm it compiles. I can see the curl flag passed to all compile targets except the one that links all togerher. It calls c compiler on all files but last step is ran with g++ instead of gcc even though all my files are C files.
What is the proper way to pass thirt party libraries to matlab coder?
0 个评论
回答(1 个)
Anakin Zheng
2019-10-20
Hi Nurullah,
-lcurl should be a linker flag instead of compiler flag.
So change the line to
coder.updateBuildInfo('addLinkFlags','-lcurl');
should fix the problem.
~Anakin
4 个评论
Jeffrey
2024-3-21
Funny, I just ran into the same issue. Its for the GXX tool chain on linux 64 bit x86, and linux arm64 nvidia.
另请参阅
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