diff --git a/hercules.spec b/hercules.spec
index 1b5a9df..a0ef2dc 100644
--- a/hercules.spec
+++ b/hercules.spec
@@ -1,11 +1,11 @@
 Summary: Hercules S/370, ESA/390, and z/Architecture emulator
 Name: hercules
 Version: 3.13
-Release: 16%{?dist}
-License: QPL
+Release: 21%{?dist}
+# Automatically converted from old format: QPL - review is highly recommended.
+License: QPL-1.0
 URL: http://www.hercules-390.eu/
 Source0: http://downloads.hercules-390.eu/%{name}-%{version}.tar.gz
-#Source0: https://github.com/rbowler/spinhawk/archive/%{version}.tar.gz
 Source1: hercules.cnf
 Source2: hercules-run
 Source3: README-rpm
@@ -18,7 +18,11 @@ BuildRequires: libcap-devel
 BuildRequires: libtool
 BuildRequires: libtool-ltdl-devel
 BuildRequires: make
+Conflicts: sdl-hercules
+Conflicts: sdl-hercules-data
 
+# https://fedoraproject.org/wiki/Changes/EncourageI686LeafRemoval
+ExcludeArch: %{ix86}
 
 %description
 Hercules is an emulator for the IBM System/370, ESA/390, and z/Architecture
@@ -30,11 +34,10 @@ printer-keyboard, 3270 terminal, and 3287 printer devices.
 
 
 %prep
-#%setup -q -n spinhawk-%{version}
 %setup -q
 
-%patch0 -p1 -b .fedora
-%patch1 -p1
+%patch -P0 -p1 -b .fedora
+%patch -P1 -p1
 
 rm autoconf/libtool.m4
 autoreconf -f -i
@@ -51,7 +54,7 @@ rm util/Makefile*
 %build
 %configure \
     --enable-external-gui \
-    --enable-optimization="%{optflags}"
+    --enable-optimization="%{optflags} -std=gnu17"
 
 make %{?_smp_mflags} V=1
 
@@ -88,17 +91,43 @@ rm %{buildroot}%{_libdir}/*.la
 %dir %{_sysconfdir}/hercules/
 %attr(0644, root, root) %config(noreplace) %{_sysconfdir}/hercules/hercules.cnf
 %attr(0644, root, root) %config(noreplace) %{_sysconfdir}/hercules/generic.prm
-%{_bindir}/*
-%{_sbindir}/*
+%{_bindir}/cckd*
+%{_bindir}/cfba*
+%{_bindir}/ckd*
+%{_bindir}/dasd*
+%{_bindir}/dmap*
+%{_bindir}/fba*
+%{_bindir}/herc*
+%{_bindir}/het*
+%{_bindir}/tape*
 %{_datadir}/hercules/
 %dir %{_libdir}/hercules/
 %{_libdir}/hercules/*.so
-%{_libdir}/*.so
+%{_libdir}/libherc*.so
+%{_libdir}/libdecNumber.so
+%{_libdir}/libsoftfloat.so
 %{_mandir}/man?/*
 %dir %{_sharedstatedir}/hercules/
 
 
 %changelog
+* Thu Jul 24 2025 Fedora Release Engineering <releng@fedoraproject.org> - 3.13-21
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
+
+* Mon Jan 20 2025 Fedora Release Engineering <releng@fedoraproject.org> - 3.13-20
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
+
+* Wed Jan 01 2025 Davide Cavalca <dcavalca@fedoraproject.org> - 3.13-19
+- Conflict with the sdl-hercules packages
+- Drop old comments that trigger a FTBFS due to macro expansion
+  Fixes: RHBZ#2300839
+
+* Wed Aug 07 2024 Miroslav Suchý <msuchy@redhat.com> - 3.13-18
+- convert license to SPDX
+
+* Thu Jul 18 2024 Fedora Release Engineering <releng@fedoraproject.org> - 3.13-17
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
+
 * Wed Jan 24 2024 Fedora Release Engineering <releng@fedoraproject.org> - 3.13-16
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild