build: workaround for gcc 6.0.0

Related: rhbz#1306162
Version: 1.3.2-50

openjade.spec

@@ -1,7 +1,7 @@
 Summary: A DSSSL implementation
 Name: openjade
 Version: 1.3.2
-Release: 49%{?dist}
+Release: 50%{?dist}
 Requires: sgml-common
 URL: http://openjade.sourceforge.net/
 Source: http://download.sourceforge.net/openjade/openjade-%{version}.tar.gz
@@ -54,6 +54,8 @@ XML, RTF, TeX, MIF (FrameMaker), SGML, or XML.
 
 %build
 cp -p %{SOURCE2} %{SOURCE3} config/
+# more info: rhbz#1306162
+export CXXFLAGS="%optflags -fno-tree-dse"
 %configure --disable-static --datadir=%{_datadir}/sgml/%{name}-%{version} \
 	--enable-splibdir=%{_libdir}
 make
@@ -107,6 +109,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/sgml/%{name}-%{version}
 
 %changelog
+* Thu Feb 11 2016 Pavel Raiskup <praiskup@redhat.com> - 1.3.2-50
+- temporarily disable -ftree-dse optimization (rhbz#1306162)
+
 * Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.2-49
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild