The stdlib functions specify the difference between `err` and `errx`
is that the former prints a message obtained with `strerror`.
However, RGBDS' implementation breaks that contract, and `warn`'s puts the
added semicolon in the wrong place.
Added define 'unused_' for '__attribute__((unused))'. The oldest version
of GCC with online docs (GCC 2.95.3, released in March 16, 2001 [1])
already has support for this attribute, so it doesn't make sense to
check the version.
Renamed 'noreturn' to 'noreturn_' for consistency.
[1] https://gcc.gnu.org/onlinedocs/
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
With permission from the main authors [1], most of the code has been
relicensed under the MIT license.
SPDX license identifiers are used so that the license headers in source
code files aren't too large.
Add CONTRIBUTORS.rst file.
[1] https://github.com/rednex/rgbds/issues/128
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
The error message shouldn't specify the name of the binary, that's
supposed to be known by the caller.
Update test reference outputs.
Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>
Improve error messages generated by `errx()`, `warnx()` and similar.
Set `progname` to a static string with the name of the program so that
the path of the binary isn't included in error messages.
Signed-off-by: AntonioND <antonio_nd@outlook.com>
