Correct build failure with rawhide gcc

sagemath.spec

@@ -158,6 +158,10 @@ Patch26:	%{name}-ntl9.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=1243590
 Patch27:	%{name}-qepcad.patch
 
+# Temporary correction for invalid conversion from
+# 'int' to 'polybori::COrderEnums::ordercodes'
+Patch28:	%{name}-polybori.patch
+
 BuildRequires:	4ti2
 BuildRequires:	atlas-devel
 BuildRequires:	cddlib-tools
@@ -645,6 +649,7 @@ popd
 %endif
 %patch26
 %patch27
+%patch28
 
 sed -e 's|@@SAGE_ROOT@@|%{SAGE_ROOT}|' \
     -e 's|@@SAGE_DOC@@|%{SAGE_DOC}|' \