We need to set disable_external_rpath to disable RPATH in qdoc

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

qt5-qttools.spec

@@ -13,7 +13,7 @@
 Summary: Qt5 - QtTool components
 Name:    qt5-qttools
 Version: 5.15.8
-Release: 3%{?dist}
+Release: 3.0.riscv64%{?dist}
 
 License: LGPL-3.0-only OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 Url:     http://www.qt.io
@@ -183,6 +183,7 @@ Requires: %{name}-common = %{version}-%{release}
 
 %build
 %{qmake_qt5} \
+  CONFIG+=disable_external_rpath \
   %{?no_examples}
 
 %make_build
@@ -482,6 +483,9 @@ fi
 
 
 %changelog
+* Fri Mar 31 2023 David Abdurachmanov <davidlt@rivosinc.com> - 5.15.8-3.0.riscv64
+- Set disable_external_rpath to avoid RPATHs in qdoc
+
 * Tue Jan 31 2023 Jan Grulich <jgrulich@redhat.com> - 5.15.8-3
 - migrated to SPDX license