[lwip-devel] unittest build fail in unix port

[Axel Lin]

Seems lwip_port_rand is only available in win32 port.

[ 86%] Building C object
CMakeFiles/lwip_unittests.dir/home/axel/git/lwip/lwip/test/unit/lwip_unittests.c.o
/home/axel/git/lwip/lwip/test/unit/lwip_unittests.c:26:1: error: no
previous prototype for ‘lwip_port_rand’ [-Werror=missing-prototypes]
 lwip_port_rand(void)
 ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
CMakeFiles/lwip_unittests.dir/build.make:62: recipe for target
'CMakeFiles/lwip_unittests.dir/home/axel/git/lwip/lwip/test/unit/lwip_unittests.c.o'
failed
make[2]: *** 
[CMakeFiles/lwip_unittests.dir/home/axel/git/lwip/lwip/test/unit/lwip_unittests.c.o]
Error 1
CMakeFiles/Makefile2:132: recipe for target
'CMakeFiles/lwip_unittests.dir/all' failed
make[1]: *** [CMakeFiles/lwip_unittests.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2