fread() doesn't set errno, ferror need to be used to check for errors.
While at it, check if we read the expect number of elements.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Use the SOURCE_DATE_EPOCH environment variable if set instead of the
current time. The used timestamp matches the timestamp of the latest
commit this way and make the images reproducible.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Drop unused function and macros. With the cleanup the gnu extension
typeof isn't used any longer and the gnu99 compile flag can be dropped.
Signed-off-by: Mathias Kresin <dev@kresin.me>
