No libjansson for old distros

OBS-URL: https://build.opensuse.org/package/show/security:netfilter/libnftnl?expand=0&rev=5

libnftnl.spec

@@ -30,10 +30,18 @@ URL:		http://netfilter.org/projects/libnftnl/
 Source:         %name-%version.tar.xz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  pkgconfig >= 0.21
-BuildRequires:  pkgconfig(jansson) >= 2.3
 BuildRequires:  pkgconfig(libmnl) >= 1.0.3
-%if 0%{?suse_version}
-# Fedora does not have
+%if 0%{?suse_version} >= 1220
+%define with_json 1
+%define with_mxml 1
+%endif
+%if 0%{?fedora_version}
+%define with_json 1
+%endif
+%if 0%{?with_json}
+BuildRequires:  pkgconfig(jansson) >= 2.3
+%endif
+%if 0%{?with_mxml}
 BuildRequires:  pkgconfig(mxml) >= 2.6
 %endif
 
@@ -65,11 +73,14 @@ applications that want to make use of libnftnl.
 %setup -qn %name
 
 %build
-%configure --includedir="%_includedir/pkg" \
-%if 0%{?suse_version}
+%configure \
+%if 0%{?with_mxml}
 	--with-xml-parsing \
 %endif
-	--with-json-parsing
+%if 0%{?with_json}
+	--with-json-parsing \
+%endif
+	--includedir="%_includedir/pkg"
 make %{?_smp_mflags}
 
 %install