%package -n %{-n*}-%1
%define _this_kmp_version %{-v*}_k%(echo %2 | sed -r 'y/-/_/; s/^(2\.6\.[0-9]+)_/\\1.0_/; # use 2.6.x.0 for mainline kernels')
Version: %_this_kmp_version
Release: %{-r*}
%(
for spec in {%_sourcedir,%_specdir}/%name.spec /dev/null; do
    [ -e $spec ] && break
done
awk '
BEGIN		{ tags["summary"] = "Summary: %summary"
		  tags["group"] = "Group: %group" }
/^%%/		{ in_pkg_header = \
		  ($0 ~ /^%%package[ \t]+KMP[ \t]*$/ ||
		   $0 ~ /^%%package[ \t]+-n[ \t]*%name-KMP[ \t]*$/)
		  next }
in_pkg_header && /^(Summary|Group):[ \t]*/ \
		{ tag = tolower($1) ; sub(/:$/, "", tag)
		  tags[tag] = $0 }
END		{ print tags["summary"]
		  print tags["group"] }
' $spec
)
Provides: %{-n*} = %_this_kmp_version
Provides: multiversion(kernel)
Requires: coreutils grep
Enhances: kernel-%1
AutoReqProv: on
%{-p:%{expand:%(cd %_sourcedir; cat %{-p*})}}
%description -n %{-n*}-%1
%(
for spec in {%_sourcedir,%_specdir}/%name.spec /dev/null; do
    [ -e $spec ] && break
done
awk '
/^%%/		{ in_desc = \
		  ($0 ~ /^%%description[ \t]+KMP[ \t]*$/ ||
		   $0 ~ /^%%description[ \t]+-n[ \t]*%name-KMP[ \t]*$/)
		  next }
in_desc		{ print; good = 1 }
END		{ exit(! good) }
' $spec || \
awk '
/^%%/		{ in_desc = \
		  ($0 ~ /^%%description[ \t]*$/ ||
		   $0 ~ /^%%description[ \t]+-n[ \t]*%name[ \t]*$/)
		  next }
in_desc		{ print; good = 1 }
END		{ exit(! good) }
' $spec
)
%post -n %{-n*}-%1
nvr=%{-n*}-%1-%_this_kmp_version-%{-r*}
wm2=/usr/lib/module-init-tools/weak-modules2
if [ -x $wm2 ]; then
    %{-b:KMP_NEEDS_MKINITRD=1} /bin/bash -${-/e/} $wm2 --add-kmp $nvr
fi
%preun -n %{-n*}-%1
nvr=%{-n*}-%1-%_this_kmp_version-%{-r*}
rpm -ql $nvr | sed -n '/\.ko$/p' > /var/run/rpm-$nvr-modules
%postun -n %{-n*}-%1
nvr=%{-n*}-%1-%_this_kmp_version-%{-r*}
modules=( $(cat /var/run/rpm-$nvr-modules) )
rm -f /var/run/rpm-$nvr-modules
if [ ${#modules[*]} = 0 ]; then
    echo "WARNING: $nvr does not contain any kernel modules" >&2
    exit 0
fi
wm2=/usr/lib/module-init-tools/weak-modules2
if [ -x $wm2 ]; then
    printf '%s\n' "${modules[@]}" | /bin/bash -${-/e/} $wm2 --remove-kmp $nvr
fi
%files -n %{-n*}-%1
%{-f:%{expand:%(cd %_sourcedir; cat %{-f*})}}
%{!-f:%defattr (-,root,root)}
%{!-f:/lib/modules/%2-%1}