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The improvements are:
- use most of the default "Makefile" for standard packaging;
- also use the default ".gitignore" with for the derived assets;
- don't impose so many $CFLAGS on the user. GCC still needs to be given
the `-ffreestanding` flag explicitly for us to get a good binary;
- stop using ad-hoc tools/* scripts, and avoid the code-generation
anti-pattern overall on the build. Some of the generated files were
checked-in, and some were removed;
- remove empty files;
- use POSIX make(1) over gmake;
- add fuzz targets;
- partial "install" and "uninstall" targets;
- complete "clean" target.
The shortcomings are:
- only working on x86_64. More platforms coming soon;
- code is still messy: way too many warnings, GNU/BSD specific
extensions, inline assembly, and all kinds of unportable code;
- still only works with GCC and GCC-like compilers, and completly fails
with tcc(1) and cproc(1);
- the `deps.mk` file is being maintained manually. As I work on the
source files I'll finish automating its generation with `mkdeps.sh`;
- still seems to be coupled with Linux;
- still is missing tests setup;
- still uses `#include <$NAME.h>` instead of the correct
`#include "$NAME.h"` form.
The generated libgrovel.a did match the previous lib/libc.a 100%.
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