Disable FMA on riscv64

gsl.spec

@@ -1,6 +1,6 @@
 Name: gsl
 Version: 2.4
-Release: 9
+Release: 10
 Summary: The GNU Scientific Library for numerical analysis
 URL: http://www.gnu.org/software/gsl/
 License: GPLv3 and GFDL and BSD
@@ -36,7 +36,7 @@ mv THANKS.aux THANKS
 
 %build
 # disable FMA
-%ifarch aarch64
+%ifarch aarch64 riscv64
 export CFLAGS="$RPM_OPT_FLAGS -ffp-contract=off"
 %endif
 %configure
@@ -90,5 +90,9 @@ fi
 %{_mandir}/man3/*.3*
 
 %changelog
+* Thu Jan 20 2022 wujie <wujie@nj.iscas.ac.cn> - 2.4-10
+- Disable FMA on riscv64 from http://fedora.riscv.rocks/koji/buildinfo?buildID=189607
+  Author is David Abdurachmanov <david.abdurachmanov@sifive.com>
+
 * Fri Feb 14 2020 fengbing <fengbing7@huawei.com> - 2.4-9
 - Package init