diff --git a/iptables.spec b/iptables.spec
index a3bb209..60ce34c 100644
--- a/iptables.spec
+++ b/iptables.spec
@@ -26,7 +26,7 @@ Name:           iptables
 Version:        1.8.7
 Release:        0
 Summary:        IP packet filter administration utilities
-License:        GPL-2.0-only AND Artistic-2.0
+License:        Artistic-2.0 AND GPL-2.0-only
 Group:          Productivity/Networking/Security
 URL:            https://netfilter.org/projects/iptables/
 #Git-Clone:     git://git.netfilter.org/iptables
@@ -55,7 +55,7 @@ Requires:       libalternatives >= 1.2
 Requires(pre):  update-alternatives
 %else
 Requires(post): update-alternatives
-Requires(postun): update-alternatives
+Requires(postun):update-alternatives
 %endif
 # During the update to iptables 1.8, ip6tables-restore-translate, ip6tables-translate,
 # iptables-restore-translate and iptables-translate were moved from iptables-nft subpackage
@@ -72,9 +72,9 @@ Summary:        Metapackage to make nft the default backend for iptables/arptabl
 Group:          Productivity/Networking/Security
 Requires:       iptables >= 1.8.0
 Requires(post): update-alternatives
-Requires(postun): update-alternatives
-Provides:       iptables-nft = %{version}-%{release}
-Obsoletes:      iptables-nft < %{version}-%{release}
+Requires(postun):update-alternatives
+Provides:       iptables-nft = %version-%release
+Obsoletes:      iptables-nft < %version-%release
 
 %description backend-nft
 Installation of this package adds higher priority alternatives (cf.
@@ -194,9 +194,9 @@ for i in iptables iptables-restore iptables-save ip6tables ip6tables-restore \
     ip6tables-save arptables arptables-restore arptables-save ebtables \
     ebtables-restore ebtables-save; do
 %if ! %{with libalternatives}
-	ln -fsv "/etc/alternatives/$i" "$b/%_sbindir/$i"
+	ln -fsv "%_sysconfdir/alternatives/$i" "$b/%_sbindir/$i"
 %else
-	ln -fsv  %{_bindir}/alts "$b/%_sbindir/$i"
+	ln -fsv %_bindir/alts "$b/%_sbindir/$i"
 %endif
 done
 
@@ -205,52 +205,41 @@ done
 %endif
 
 %if %{with libalternatives}
-mkdir -p %{buildroot}%{_datadir}/libalternatives/iptables
-cat > %{buildroot}%{_datadir}/libalternatives/iptables/1.conf <<EOF
-binary=%{_sbindir}/xtables-legacy-multi
-group=iptables, ip6tables, ip6tables-restore, ip6tables-save, iptables-restore, iptables-save
-options=KeepArgv0
+mkdir -pv "$b/%_datadir/libalternatives/iptables"
+cat >"$b/%_datadir/libalternatives/iptables/1.conf" <<-EOF
+	binary=%_sbindir/xtables-legacy-multi
+	group=iptables, ip6tables, ip6tables-restore, ip6tables-save, iptables-restore, iptables-save
+	options=KeepArgv0
 EOF
-cat > %{buildroot}%{_datadir}/libalternatives/iptables/2.conf <<EOF
-binary=%{_sbindir}/xtables-nft-multi
-group=iptables, ip6tables, ip6tables-restore, ip6tables-save, iptables-restore, iptables-save
-options=KeepArgv0
+cat >"$b/%_datadir/libalternatives/iptables/2.conf" <<-EOF
+	binary=%_sbindir/xtables-nft-multi
+	group=iptables, ip6tables, ip6tables-restore, ip6tables-save, iptables-restore, iptables-save
+	options=KeepArgv0
 EOF
-mkdir -p %{buildroot}%{_datadir}/libalternatives/ip6tables
-cp %{buildroot}%{_datadir}/libalternatives/iptables/1.conf %{buildroot}%{_datadir}/libalternatives/ip6tables/1.conf
-cp %{buildroot}%{_datadir}/libalternatives/iptables/2.conf %{buildroot}%{_datadir}/libalternatives/ip6tables/2.conf
-mkdir -p %{buildroot}%{_datadir}/libalternatives/ip6tables-restore
-cp %{buildroot}%{_datadir}/libalternatives/iptables/1.conf %{buildroot}%{_datadir}/libalternatives/ip6tables-restore/1.conf
-cp %{buildroot}%{_datadir}/libalternatives/iptables/2.conf %{buildroot}%{_datadir}/libalternatives/ip6tables-restore/2.conf
-mkdir -p %{buildroot}%{_datadir}/libalternatives/ip6tables-save
-cp %{buildroot}%{_datadir}/libalternatives/iptables/1.conf %{buildroot}%{_datadir}/libalternatives/ip6tables-save/1.conf
-cp %{buildroot}%{_datadir}/libalternatives/iptables/2.conf %{buildroot}%{_datadir}/libalternatives/ip6tables-save/2.conf
-mkdir -p %{buildroot}%{_datadir}/libalternatives/iptables-restore
-cp %{buildroot}%{_datadir}/libalternatives/iptables/1.conf %{buildroot}%{_datadir}/libalternatives/iptables-restore/1.conf
-cp %{buildroot}%{_datadir}/libalternatives/iptables/2.conf %{buildroot}%{_datadir}/libalternatives/iptables-restore/2.conf
-mkdir -p %{buildroot}%{_datadir}/libalternatives/iptables-save
-cp %{buildroot}%{_datadir}/libalternatives/iptables/1.conf %{buildroot}%{_datadir}/libalternatives/iptables-save/1.conf
-cp %{buildroot}%{_datadir}/libalternatives/iptables/2.conf %{buildroot}%{_datadir}/libalternatives/iptables-save/2.conf
+for i in ip6tables ip6tables-restore ip6tables-save iptables-restore iptables-save; do
+	mkdir -pv "$b/%_datadir/libalternatives/$i"
+	cp -av "$b/%_datadir/libalternatives/iptables/"*.conf "$b/%_datadir/libalternatives/$i/"
+done
 
-mkdir -p %{buildroot}%{_datadir}/libalternatives/arptables
-cat > %{buildroot}%{_datadir}/libalternatives/arptables/2.conf <<EOF
-binary=%{_sbindir}/xtables-nft-multi
-group=arptables, arptables-restore, arptables-save
+mkdir -pv $b/%_datadir/libalternatives/arptables
+cat >"$b/%_datadir/libalternatives/arptables/2.conf" <<-EOF
+	binary=%_sbindir/xtables-nft-multi
+	group=arptables, arptables-restore, arptables-save
 EOF
-mkdir -p %{buildroot}%{_datadir}/libalternatives/arptables-restore
-cp %{buildroot}%{_datadir}/libalternatives/arptables/2.conf %{buildroot}%{_datadir}/libalternatives/arptables-restore/2.conf
-mkdir -p %{buildroot}%{_datadir}/libalternatives/arptables-save
-cp %{buildroot}%{_datadir}/libalternatives/arptables/2.conf %{buildroot}%{_datadir}/libalternatives/arptables-save/2.conf
+for i in arptables-restore arptables-save; do
+	mkdir -pv "$b/%_datadir/libalternatives/$i"
+	cp -av "$b/%_datadir/libalternatives/arptables/2.conf" "$b/%_datadir/libalternatives/$i/"
+done
 
-mkdir -p %{buildroot}%{_datadir}/libalternatives/ebtables
-cat > %{buildroot}%{_datadir}/libalternatives/ebtables/2.conf <<EOF
-binary=%{_sbindir}/xtables-nft-multi
-group=ebtables, ebtables-restore, ebtables-save
+mkdir -p "$b/%_datadir/libalternatives/ebtables"
+cat >"$b/%_datadir/libalternatives/ebtables/2.conf" <<-EOF
+	binary=%_sbindir/xtables-nft-multi
+	group=ebtables, ebtables-restore, ebtables-save
 EOF
-mkdir -p %{buildroot}%{_datadir}/libalternatives/ebtables-restore
-cp %{buildroot}%{_datadir}/libalternatives/ebtables/2.conf %{buildroot}%{_datadir}/libalternatives/ebtables-restore/2.conf
-mkdir -p %{buildroot}%{_datadir}/libalternatives/ebtables-save
-cp %{buildroot}%{_datadir}/libalternatives/ebtables/2.conf %{buildroot}%{_datadir}/libalternatives/ebtables-save/2.conf
+for i in ebtables-restore ebtables-save; do
+	mkdir -pv "$b/%_datadir/libalternatives/$i"
+	cp -av "$b/%_datadir/libalternatives/ebtables/2.conf" "$b/%_datadir/libalternatives/$i/"
+done
 
 %endif
 
@@ -259,8 +248,9 @@ cp %{buildroot}%{_datadir}/libalternatives/ebtables/2.conf %{buildroot}%{_datadi
 # removing old update-alternatives entries
 if [ "$1" > 0 ] ; then
          update-alternatives --remove iptables "%_sbindir/xtables-legacy-multi"
-fi    
+fi
 %else
+
 %post
 update-alternatives \
 	--install "%_sbindir/iptables" iptables "%_sbindir/xtables-legacy-multi" 1 \
@@ -285,6 +275,7 @@ if test "$1" = 0; then
 	update-alternatives --remove ebtables "%_sbindir/xtables-nft-multi"
 fi
 %else
+
 %post backend-nft
 update-alternatives \
 	--install "%_sbindir/iptables" iptables "%_sbindir/xtables-nft-multi" 2 \
@@ -342,19 +333,7 @@ fi
 %ghost %_sysconfdir/alternatives/ip6tables-restore
 %ghost %_sysconfdir/alternatives/ip6tables-save
 %else
-%dir %{_datadir}/libalternatives
-%dir %{_datadir}/libalternatives/iptables
-%dir %{_datadir}/libalternatives/iptables-restore
-%dir %{_datadir}/libalternatives/iptables-save
-%dir %{_datadir}/libalternatives/ip6tables
-%dir %{_datadir}/libalternatives/ip6tables-restore
-%dir %{_datadir}/libalternatives/ip6tables-save
-%{_datadir}/libalternatives/iptables/1.conf
-%{_datadir}/libalternatives/iptables-restore/1.conf
-%{_datadir}/libalternatives/iptables-save/1.conf
-%{_datadir}/libalternatives/ip6tables/1.conf
-%{_datadir}/libalternatives/ip6tables-restore/1.conf
-%{_datadir}/libalternatives/ip6tables-save/1.conf
+%_datadir/libalternatives/
 %endif
 %_sbindir/iptables
 %_sbindir/iptables-restore
@@ -378,31 +357,7 @@ fi
 %ghost %_sysconfdir/alternatives/ebtables-restore
 %ghost %_sysconfdir/alternatives/ebtables-save
 %else
-%dir %{_datadir}/libalternatives
-%dir %{_datadir}/libalternatives/iptables
-%dir %{_datadir}/libalternatives/iptables-restore
-%dir %{_datadir}/libalternatives/iptables-save
-%dir %{_datadir}/libalternatives/ip6tables
-%dir %{_datadir}/libalternatives/ip6tables-restore
-%dir %{_datadir}/libalternatives/ip6tables-save
-%dir %{_datadir}/libalternatives/arptables
-%dir %{_datadir}/libalternatives/arptables-restore
-%dir %{_datadir}/libalternatives/arptables-save
-%dir %{_datadir}/libalternatives/ebtables
-%dir %{_datadir}/libalternatives/ebtables-restore
-%dir %{_datadir}/libalternatives/ebtables-save
-%{_datadir}/libalternatives/iptables/2.conf
-%{_datadir}/libalternatives/iptables-restore/2.conf
-%{_datadir}/libalternatives/iptables-save/2.conf
-%{_datadir}/libalternatives/ip6tables/2.conf
-%{_datadir}/libalternatives/ip6tables-restore/2.conf
-%{_datadir}/libalternatives/ip6tables-save/2.conf
-%{_datadir}/libalternatives/arptables/2.conf
-%{_datadir}/libalternatives/arptables-restore/2.conf
-%{_datadir}/libalternatives/arptables-save/2.conf
-%{_datadir}/libalternatives/ebtables/2.conf
-%{_datadir}/libalternatives/ebtables-restore/2.conf
-%{_datadir}/libalternatives/ebtables-save/2.conf
+%_datadir/libalternatives/
 %endif
 %_sbindir/iptables
 %_sbindir/iptables-restore