#!/bin/sh
get_vendor()
{
local origin="$DPKG_ROOT/etc/dpkg/origins/default"
local vendor
if [ -n "$DEB_VENDOR" ]; then
vendor="$DEB_VENDOR"
elif [ -e "$origin" ]; then
vendor=$(sed -ne 's/^Vendor: *\([^ ]\+\) */\1/p' "$origin" | tr A-Z a-z)
fi
echo "${vendor:-default}"
}
check_merged_usr_via_aliased_dirs()
{
local vendor
vendor=$(get_vendor)
case "$vendor" in
debian)
# In Debian some people have gotten so offended by the following _warning_
# that they have resorted to bullying and abuse. Life's too short, sorry.
return
;;
ubuntu)
# Ubuntu does not seem interested in it.
return
;;
esac
for d in /bin /sbin /lib /lib32 /libo32 /libx32 /lib64; do
linkname="$(readlink $d)"
if [ "$linkname" = "usr$d" ] || [ "$linkname" = "/usr$d" ]; then
echo "This system uses merged-usr-via-aliased-dirs, going behind dpkg's" >&3
echo "back, breaking its core assumptions. This can cause silent file" >&3
echo "overwrites and disappearances, and its general tools misbehavior." >&3
echo "See <https://wiki.debian.org/Teams/Dpkg/FAQ#broken-usrmerge>." >&3
break
fi
done
}
check_merged_usr_via_aliased_dirs
Mini Shell