Disable altivec on ppc64le (RHBZ #1551338)

SDL2.spec

@@ -1,6 +1,6 @@
 Name:           SDL2
 Version:        2.0.8
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Cross-platform multimedia library
 
 License:        zlib and MIT
@@ -86,7 +86,11 @@ sed -i -e 's/\r//g' TODO.txt README.txt WhatsNew.txt BUGS.txt COPYING.txt CREDIT
     --enable-video-vulkan \
     --enable-sse2=no \
     --enable-sse3=no \
-    --disable-rpath
+    --disable-rpath \
+%ifarch ppc64le
+    --disable-altivec \
+%endif
+
 make %{?_smp_mflags}
 
 %install
@@ -123,6 +127,9 @@ rm -vf %{buildroot}%{_libdir}/*.la
 %{_libdir}/lib*.a
 
 %changelog
+* Sun Mar 04 2018 Miro Hrončok <mhroncok@redhat.com> - 2.0.8-2
+- Disable altivec on ppc64le (RHBZ #1551338)
+
 * Sun Mar  4 2018 Peter Robinson <pbrobinson@fedoraproject.org> 2.0.8-1
 - Update to 2.0.8