Disable qdoc for RISC-V (riscv64)

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

qt5-qtenginio.spec

@@ -1,13 +1,19 @@
 %global qt_module qtenginio
 
 # define to build docs, need to undef this for bootstrapping
+# we don't have /usr/lib64/qt5/bin/qdoc on RISC-V (riscv64)
+# because we don't have LLVM/Clang.
+%ifnarch riscv64
 %define docs 1
+%else
+%define docs 0
+%endif
 
 Summary: Qt5 - Enginio component
 Name:    qt5-%{qt_module}
 Epoch:   1
 Version: 1.6.2
-Release: 17%{?dist}
+Release: 17.0.riscv64%{?dist}
 
 # See LICENSE.GPL LICENSE.LGPL LGPL_EXCEPTION.txt, for details
 # See also http://doc.qt.io/qt-5/licensing.html
@@ -124,6 +130,9 @@ popd
 
 
 %changelog
+* Fri Jun 22 2018 David Abdurachmanov <david.abdurachmanov@gmail.com> - 1.6.2-17.0.riscv64
+- disable qdoc on RISC-V (riscv64)
+
 * Thu Jun 21 2018 Rex Dieter <rdieter@fedoraproject.org> - 1.6.2-17
 - rebuild (qt5)