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Recent GCC (9.3 at least) got smarter and sees that strncopy should not
be used with the length of the string, and memcpy should be used instead. The
error:
In function strncpy,
inlined from LoadConfig at ../common/applib.c:127:4:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: error: __builtin_strncpy output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../common/applib.c: In function LoadConfig:
../common/applib.c:124:15: note: length computed here
124 | if ((len = strlen(p)) > CONF_VALUE_LEN)