ipv6pref.c: In function ‘main’:
ipv6pref.c:288:11: warning: passing argument 1 of ‘putenv’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
288 | putenv ("QCDM_DEBUG=1");
| ^~~~~~~~~~~~~~
ipv6pref.c: In function ‘print_buf’:
ipv6pref.c:46:16: warning: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’} [-Wsign-compare]
46 | for (i = 0; i < len; i++) {
| ^
ipv6pref.c: In function ‘qcdm_wait_reply’:
ipv6pref.c:167:17: warning: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’ [-Wsign-compare]
167 | } while (total < sizeof (readbuf));
| ^
