When using LWIP_RAND_FOR_FUZZ_SIMULATE_GLIBC:
fuzz_common.c: In function ‘lwip_fuzz_rand’:
fuzz_common.c:683:11: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’ [-Werror=sign-compare]
683 | if (idx >= sizeof(rand_nrs)/sizeof((rand_nrs)[0])) {
| ^~
cc1: all warnings being treated as errors
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