Fix build on riscv64

cln.spec

@@ -1,6 +1,6 @@
 Name:           cln
 Version:        1.3.6
-Release:        2
+Release:        3
 Summary:        Class Library for Numbers
 License:        GPL-2.0-or-later
 URL:            https://www.ginac.de/CLN/
@@ -38,9 +38,6 @@ the CLN library.
 
 %prep
 %setup -q
-%ifarch riscv64
-%patch1 -p1
-%endif
 	
 %build
 %configure --disable-static CXXFLAGS="%{XFLAGS}" CFLAGS="%{XFLAGS}"
@@ -72,6 +69,9 @@ make %{_smp_mflags} check
 %doc doc/cln.pdf doc/cln.html
 
 %changelog
+* Wed Oct 11 2023 misaka00251 <liuxin@iscas.ac.cn> - 1.3.6-3
+- Fix build on riscv64
+
 * Mon May 08 2023 misaka00251 <liuxin@iscas.ac.cn> - 1.3.6-2
 - Remove patch, it's merged upstream