Bash 5 apparently longer propagates variable assignments to local variables
in front of function calls when in POSIX mode:
[lkundrak@demiurge ~]$ cat feh.sh
print_VAR () {
echo "$VAR";
}
testfunc () {
local VAR="OLD"
VAR=NEW print_VAR
}
testfunc
[lkundrak@demiurge ~]$ bash4 --posix feh.sh
NEW
[lkundrak@demiurge ~]$ bash5 --posix feh.sh
OLD
[lkundrak@demiurge ~]$ bash5 feh.sh
NEW
[lkundrak@demiurge ~]$
It works the way it did in Bash 4 in non-POSIX mode, for external programs,
or for non-local variables. Don't ask me why -- it's probably some
compatibility thing for some sad old people.
However, this precisely happens when fsck_single() is calling into the
fsck_drv_com(), assigned to _drv by fsck_able(). That ruins the
TEST-70-BONDBRIDGETEAMVLAN test's server and probably more.
Let's pass the fsck driver binary via the function argument instead. It's
less messy anyway.
Lubomir Rintel
43c8c4ce04