diff --git a/rrdtool.spec b/rrdtool.spec
index 8cff690..0409424 100644
--- a/rrdtool.spec
+++ b/rrdtool.spec
@@ -61,7 +61,11 @@ pushd cgilib-%{cgilib_version}
 echo -n > NEWS
 aclocal --force
 autoreconf -fiv
-CFLAGS="%{optflags} -fPIC -I. -fexcess-precision=fast" \
+CGILIB_CFLAGS="%{optflags} -fPIC -I."
+%if 0%{?suse_version} >= 1130
+CGILIB_CFLAGS="$CGILIB_CFLAGS -fexcess-precision=fast"
+%endif
+CFLAGS="$CGILIB_CFLAGS" \
 %configure
 make %{?jobs:-j %jobs}
 %__mkdir_p ../lb/include