Line #52 of /usr/share/udhcpc/default.script makes use of a postfix increment operator, which is not defined by POSIX and not supported by shells such as dash. $ sed -n 52p /usr/share/udhcpc/default.script route add default gw $i dev $interface metric $((metric++)) Considered in isolation, the matter could be resolved by writing it as follows. route add default gw $i dev $interface metric $metric : $(( metric += 1 )) As an aside, the preceding seven lines look suspicious in so far as `ip route` is potentially invoked without testing whether ip(8) is available - which is inconsistent with the rest of the script - before going on to execute a seemingly equivalent route(8) command in that event.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ae3df10c876759010ceb65558932a31c1d72b831 commit ae3df10c876759010ceb65558932a31c1d72b831 Author: Viorel Munteanu <ceamac.paragon@gmail.com> AuthorDate: 2022-04-17 09:10:42 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2022-06-30 21:40:15 +0000 sys-apps/busybox: Fix bashism in udhcpc script Closes: https://bugs.gentoo.org/801535 Signed-off-by: Viorel Munteanu <ceamac.paragon@gmail.com> Signed-off-by: Sam James <sam@gentoo.org> sys-apps/busybox/busybox-1.34.1-r1.ebuild | 1 + 1 file changed, 1 insertion(+)
