[Buildroot] [PATCH 2/2] fs/cpio: make cpio rootfs reproducible
Yann E. MORIN
yann.morin.1998 at free.fr
Sun Jul 14 17:21:33 UTC 2019
Atharva, All,
On 2019-07-14 18:47 +0200, Yann E. MORIN spake thusly:
> On 2019-07-14 21:53 +0530, Atharva Lele spake thusly:
> > Pass the recommended argument in the CPIO manual to make cpio archives
> > reproducible.
[--SNIP--]
> > +# --repoducible option was not introduced until cpio v2.12. Some distros
> > +# like Ubuntu 16.04 or Debian oldstable which package v2.11. Hence build
> > +# host-cpio.
> > +ifeq ($(BR2_REPRODUCIBLE), y)
> > +ROOTFS_CPIO_DEPENDENCIES += host-cpio
> > +CPIO_OPTS = --reproducible
In addition to my previous comments: the variable shall be prefixed with
ROOTFS_CPIO_, not just with CPIO_, otherwise it could clash with variables
from the cpio package itself.
Regards,
Yann E. MORIN.
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