Update old config.{guess,sub} scripts

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

ntl.spec

@@ -3,7 +3,7 @@
 Summary: High-performance algorithms for vectors, matrices, and polynomials 
 Name:    ntl 
 Version: 11.5.1
-Release: 5%{?dist}
+Release: 5.0.riscv64%{?dist}
 
 # LGPL-2.1-or-later: the project as a whole
 # BSD-2-Clause: src/FFT.cpp
@@ -52,6 +52,10 @@ Requires: %{name}%{?_isa} = %{version}-%{release}
 %prep
 %autosetup -p0
 
+# Fix old config scripts (needed for riscv64)
+find . -name 'config.sub' -exec cp -vf /usr/lib/rpm/%{?_vendor}/config.sub {} \;
+find . -name 'config.guess' -exec cp -vf /usr/lib/rpm/%{?_vendor}/config.guess {} \;
+
 # Remove an unused file with an unacceptable license (CC-BY-3.0)
 rm src/GetTime0.cpp
 
@@ -128,6 +132,9 @@ done
 
 
 %changelog
+* Mon Mar 20 2023 David Abdurachmanov <davidlt@rivosinc.com> - 11.5.1-5.0.riscv64
+- Update old config.{guess,sub} scripts
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 11.5.1-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild