Link to libatomic on RISC-V

Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>

qt5-qtdeclarative.spec

@@ -8,7 +8,7 @@
 Summary: Qt5 - QtDeclarative component
 Name:    qt5-%{qt_module}
 Version: 5.12.4
-Release: 3%{?dist}
+Release: 3.0.riscv64%{?dist}
 
 # See LICENSE.GPL LICENSE.LGPL LGPL_EXCEPTION.txt, for details
 License: LGPLv2 with exceptions or GPLv3 with exceptions
@@ -85,6 +85,11 @@ Requires: %{name}%{?_isa} = %{version}-%{release}
 ln -s %{__python3} python
 export PATH=`pwd`:$PATH
 
+# riscv64
+%ifarch riscv64
+export LDFLAGS="%{_qt5_ldflags} -latomic"
+%endif
+
 %qmake_qt5
 
 %make_build
@@ -191,6 +196,9 @@ make check -k -C tests ||:
 
 
 %changelog
+* Tue Aug 13 2019 David Abdurachmanov <david.abdurachmanov@sifive.com> - 5.12.4-3.0.riscv64
+- Link to libatomic on RISC-V
+
 * Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 5.12.4-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild