diff --git a/liquidwar.spec b/liquidwar.spec
index bccdc2e..7d55e8b 100644
--- a/liquidwar.spec
+++ b/liquidwar.spec
@@ -1,7 +1,6 @@
-%define _hardened_build 1
 Name:           liquidwar
 Version:        5.6.5
-Release:        17%{?dist}
+Release:        21%{?dist}
 Summary:        Multiplayer wargame with liquid armies
 License:        GPL-2.0-or-later
 URL:            http://www.ufoot.org/liquidwar/v5
@@ -36,7 +35,6 @@ format.
 %package server
 Summary:        Network game server for the LiquidWar game
 Requires:       %{name} = %{version}-%{release}
-Requires(pre):  /usr/sbin/useradd
 
 %description server
 This package contains the server for hosting network LiquidWar games.
@@ -55,6 +53,11 @@ for i in de dk fr; do
   mv $i README.$i
 done
 
+# Create a sysusers.d config file
+cat >liquidwar.sysusers.conf <<EOF
+u liquidwar - 'LiquidWar Server' %{_datadir}/%{name} -
+EOF
+
 
 %build
 %configure --disable-target-opt \
@@ -65,7 +68,7 @@ done
   --disable-asm \
 %endif
 LDFLAGS="%{__global_ldflags}"
-CFLAGS="$RPM_OPT_FLAGS -fcommon"
+CFLAGS="$RPM_OPT_FLAGS -fcommon -std=gnu17"
 LDFLAGS="$LDFLAGS -lm"
 PYTHON="%{__python3}"
 
@@ -107,13 +110,7 @@ install -p -D -m 644 %{SOURCE2} \
 install -p -D -m 644 %{SOURCE3} \
         $RPM_BUILD_ROOT/%{_sysconfdir}/logrotate.d/%{name}-server
 
-%pre server
-user_uid=`id -u %{name} 2>/dev/null`
-if [ x"$user_uid" = x ] ; then
-    /usr/sbin/useradd -r -s /sbin/nologin -d %{_datadir}/%{name} -M \
-            -c 'LiquidWar Server' \
-            %{name} >/dev/null || :
-fi
+install -m0644 -D liquidwar.sysusers.conf %{buildroot}%{_sysusersdir}/liquidwar.conf
 
 %post server
 %systemd_post liquidwar-server.service
@@ -145,9 +142,22 @@ fi
 %{_unitdir}/liquidwar-server.service
 %config(noreplace) %{_sysconfdir}/sysconfig/%{name}-server
 %config(noreplace) %{_sysconfdir}/logrotate.d/%{name}-server
+%{_sysusersdir}/liquidwar.conf
 
 
 %changelog
+* Thu Jul 24 2025 Fedora Release Engineering <releng@fedoraproject.org> - 5.6.5-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
+
+* Wed Mar 19 2025 Gwyn Ciesla <gwync@protonmail.com> - 5.6.5-20
+- Fix FTI
+
+* Tue Feb 11 2025 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 5.6.5-19
+- Add sysusers.d config file to allow rpm to create users/groups automatically
+
+* Fri Jan 17 2025 Fedora Release Engineering <releng@fedoraproject.org> - 5.6.5-18
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
+
 * Thu Jul 18 2024 Fedora Release Engineering <releng@fedoraproject.org> - 5.6.5-17
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild