diff --git a/cylindrix-1.0-configure-c99.patch b/cylindrix-1.0-configure-c99.patch
deleted file mode 100644
index 9572bbb..0000000
--- a/cylindrix-1.0-configure-c99.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/configure b/configure
-index baf9b5a..487763c 100755
---- configure
-+++ configure
-@@ -906,7 +906,7 @@ cat > conftest.$ac_ext << EOF
- #line 907 "configure"
- #include "confdefs.h"
- 
--main(){return(0);}
-+int main(){return(0);}
- EOF
- if { (eval echo configure:912: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-   ac_cv_prog_cc_works=yes
diff --git a/cylindrix.spec b/cylindrix.spec
index e49273c..e856553 100644
--- a/cylindrix.spec
+++ b/cylindrix.spec
@@ -1,9 +1,9 @@
 Name: cylindrix
 Version:  1.0
-Release: 47%{?dist}
+Release: 38%{?dist}
 Summary: A 3 degrees of freedom combat game
 
-License: LGPL-2.0-only        
+License: LGPLv2        
 URL: http://www.hardgeus.com/cylindrix/
 Source0: http://www.hardgeus.com/cylindrix/cylindrix-1.0.tar.bz2
 Source1: cylindrix.desktop
@@ -15,7 +15,6 @@ Patch1: cylindrix-1.0-arch-independ-file-read.patch
 Patch2: cylindrix-1.0-use-int-not-long.patch
 Patch3: cylindrix-1.0-arch-independ-file-write.patch
 Patch4: cylindrix-1.0-object-fopen.patch
-Patch5: cylindrix-1.0-configure-c99.patch
 Requires: hicolor-icon-theme
 BuildRequires:  gcc-c++
 BuildRequires: allegro-devel, desktop-file-utils
@@ -38,17 +37,16 @@ is worth a try.
 %prep
 %setup -q
 
-%patch -P0 -p0
-%patch -P1 -p0
-%patch -P2 -p0
-%patch -P3 -p0
-%patch -P4 -p0
-%patch -P5 -p0
+%patch0 -p0
+%patch1 -p0
+%patch2 -p0
+%patch3 -p0
+%patch4 -p0
 
 %build
 
 %configure
-make CFLAGS="$RPM_OPT_FLAGS -Wno-pointer-sign -fcommon -std=gnu17" LIBS="-lm"
+make CFLAGS="$RPM_OPT_FLAGS -Wno-pointer-sign -fcommon" LIBS="-lm"
 
 %install
 mkdir -p %{buildroot}%{_bindir}
@@ -90,33 +88,6 @@ install -p -m 644 %{SOURCE2} \
 
 
 %changelog
-* Wed Jul 23 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-47
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Thu Jan 16 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-46
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Wed Jul 17 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-45
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
-
-* Wed Jan 24 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-44
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
-
-* Fri Jan 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-43
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
-
-* Wed Jul 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-42
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
-
-* Wed Mar 01 2023 Gwyn Ciesla <gwync@protonmail.com> - 1.0-41
-- migrated to SPDX license
-
-* Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-40
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
-
-* Thu Dec 22 2022 Peter Fordham <peter.fordham@gmail.com> - 1.0-39
-- Port configure script to C99.
-
 * Wed Jul 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-38
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild