sed -i 's@%{gtk3_install_path}@%{_buildrootdir}%{gtk3_install_path}@g' %{_buildrootdir}%{gtk3_install_path}/%{_lib}/pkgconfig/nss*.pc

export LDFLAGS="-L%{_buildrootdir}%{gtk3_install_path}/%{_lib} $LDFLAGS"
export LDFLAGS="-Wl,-rpath,%{gtk3_install_path}/%{_lib} $LDFLAGS"
export LDFLAGS="-Wl,-rpath-link,%{_buildrootdir}%{gtk3_install_path}/%{_lib} $LDFLAGS"
export PKG_CONFIG_PATH=%{_buildrootdir}%{gtk3_install_path}/%{_lib}/pkgconfig
export PATH="{_buildrootdir}%{gtk3_install_path}/bin:$PATH"