Hello All,
I tried to run the lwip example application in Mac OS with the options as
below, but I get a linker error “ip_data” symbol not found.
#define LWIP_IPV4 0
#define LWIP_IPV6 1
#define NO_SYS 1
However, if I enable LWIP_IPV4, the undefined symbol error doest appear.
Ip_data is defined in ip.c file, and ip.h file is included in ip6.c file.
Has anyone come across this issue
Undefined symbols for architecture x86_64:
"_ip_data", referenced from:
_ip6_input in liblwipcore.a(ip6.c.o)
_ip6_input_accept in liblwipcore.a(ip6.c.o)
_ip6_reass in liblwipcore.a(ip6_frag.c.o)
_mld6_input in liblwipcore.a(mld6.c.o)
_nd6_input in liblwipcore.a(nd6.c.o)
_nd6_send_na in liblwipcore.a(nd6.c.o)
_raw_input in liblwipcore.a(raw.c.o)
...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [contrib/ports/unix/example_app/example_app] Error 1
make[2]: *** [contrib/ports/unix/example_app/CMakeFiles/example_app.dir/all]
Error 2
make[1]: *** [contrib/ports/unix/example_app/CMakeFiles/example_app.dir/rule]
Error 2
make: *** [example_app] Error 2
Regards
Arun
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