Running make from programs/fuzz didn't set any optimization flags (running
make from programs or from the root inherited the parent's optimization
flags). Default to -O2.
There were no -W flags. Default to -Wall -Wextra, but not -Werror in line
with the other makefiles.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Also adjusted the different makefiles accordingly.
Note: driver lifetime is currently statically defined in the header, but
this will be replaced in the future based on autogeneration of lifetime
values by a script (TBD)
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
If we try to delete a non-existant file using del on Windows, as
can happen when running make clean, del will throw an error. Make
the Makefiles more robust by only deleting files if they exist.
