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
On compilers with security warnings enabled by default, we get: usr/gen_init_cpio.c: In function ‘cpio_mkfile’: usr/gen_init_cpio.c:357: warning: ignoring return value of ‘fwrite’, declared with attribute warn_unused_result So check the return value and handle errors accordingly. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Michal Marek <mmarek@suse.cz>