/usr/bin/dh_xsf_substvars is in xserver-xorg-dev 2:1.11.4-0ubuntu10.17.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | #!/bin/sh
# © 2011 Cyril Brulebois <kibi@debian.org>
#
# Usage:
# Call this script from debian/rules, before dh_gencontrol is run,
# to get all needed variables computed in debian/$p.substvars for
# each package $p found through dh_listpackages.
# .
# This script has support for udebs.
set -e
# Sanity check. All drivers build-depend on debhelper:
if ! which dh_listpackages >/dev/null 2>&1; then
echo "E: dh_listpackages not found, debhelper package missing?"
exit 1
fi
# Read the dependencies once:
INPUTDEP=$(cat /usr/share/xserver-xorg/xinputdep 2>/dev/null)
VIDEODEP=$(cat /usr/share/xserver-xorg/videodrvdep 2>/dev/null)
# Iterate on the packages:
for package in $(dh_listpackages); do
case $package in
*-udeb)
# udebs depend on udebs, tweak the dependency on the server:
inputdep=$(echo "$INPUTDEP"|sed 's/xserver-xorg-core/&-udeb/')
videodep=$(echo "$VIDEODEP"|sed 's/xserver-xorg-core/&-udeb/')
;;
*)
# just copy the dependencies read previously:
inputdep="$INPUTDEP"
videodep="$VIDEODEP"
esac
# To avoid having "unused substitution variable" warnings from
# dpkg-gencontrol, only set variables which make sense:
case $package in
*-dbg|*-dev|*-all)
# debug, devel, or meta package, no need for Depends/Provides.
:
;;
xserver-xorg-input-*)
# input driver:
echo "xinpdriver:Depends=$inputdep" >> debian/$package.substvars
echo "xinpdriver:Provides=xorg-driver-input" >> debian/$package.substvars
;;
xserver-xorg-video-*)
# video driver:
echo "xviddriver:Depends=$videodep" >> debian/$package.substvars
echo "xviddriver:Provides=xorg-driver-video" >> debian/$package.substvars
esac
done
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