diff --git a/volpack.spec b/volpack.spec
index 754d48f..415a590 100644
--- a/volpack.spec
+++ b/volpack.spec
@@ -1,6 +1,9 @@
+# This code is old and ugly.
+%global optflags %{optflags} -std=gnu17
+
 Name:          volpack
 Version:       1.0c7
-Release:       31%{?dist}
+Release:       37%{?dist}
 Summary:       Portable library for fast volume rendering
 License:       BSD-3-Clause
 URL:           http://amide.sourceforge.net
@@ -84,6 +87,24 @@ popd
 
 
 %changelog
+* Fri Jul 17 2026 Fedora Release Engineering <releng@fedoraproject.org> - 1.0c7-37
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
+
+* Sat Jan 17 2026 Fedora Release Engineering <releng@fedoraproject.org> - 1.0c7-36
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
+
+* Fri Jul 25 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.0c7-35
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
+
+* Tue Feb 25 2025 Tom Callaway <spot@fedoraproject.org> - 1.0c7-34
+- force -std=gnu17 for compilation, this code is old and nasty
+
+* Sun Jan 19 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.0c7-33
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
+
+* Sat Jul 20 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.0c7-32
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
+
 * Sat Feb  3 2024 Tom Callaway <spot@fedoraproject.org> - 1.0c7-31
 - fix casts to resolve FTBFS