!20 riscv64: fortran编译选项增加-fPIC

From: @laokz 
Reviewed-by: @dillon_chen 
Signed-off-by: @dillon_chen

libtool.spec

@@ -3,7 +3,7 @@
 
 Name:    libtool
 Version: 2.4.7
-Release: 2
+Release: 3
 License: GPLv2+ and LGPLv2+ and GFDL-1.3-or-later
 Summary: The GNU Portable Library Tool
 URL:     http://www.gnu.org/software/libtool/
@@ -59,6 +59,10 @@ export FCFLAGS=$(echo "$RPM_OPT_FLAGS -I/usr/lib64/gfortran/modules"| sed 's/-fs
 export FFLAGS="$RPM_OPT_FLAGS -fPIE"
 export FCFLAGS="$RPM_OPT_FLAGS -fPIE"
 %endif
+%ifarch riscv64
+export FFLAGS="$RPM_OPT_FLAGS -fPIC"
+export FCFLAGS="$RPM_OPT_FLAGS -fPIC"
+%endif
 
 %configure
 
@@ -102,6 +106,9 @@ rm -f %{buildroot}%{_libdir}/libltdl.{a,la}
 
 
 %changelog
+* Tue Jun 06 2023 laokz <zhangkai@iscas.ac.cn> - 2.4.7-3
+- add -fPIC to fortran flags for riscv
+
 *Thu Feb 02 2023 renhongxun <renhongxun@h-partners.com> - 2.4.7-2
 - backport: tests/link-order.at: avoid warning and test failure with GNU grep 3.8