make taglib support fedora only

kf5-kfilemetadata.spec

@@ -6,6 +6,7 @@
 %if 0%{?fedora}
 %global         ebook 1
 %global         poppler 1
+%global         taglib 1
 %endif
 
 Name:           kf5-%{framework}
@@ -38,7 +39,9 @@ BuildRequires:  pkgconfig(exiv2) >= 0.20
 %if 0%{?poppler}
 BuildRequires:  pkgconfig(poppler-qt5)
 %endif
-BuildRequires:  pkgconfig(taglib)
+%if 0%{?taglib}
+BuildRequires:  pkgconfig(taglib) >= 1.9
+%endif
 BuildRequires:  qt5-qtbase-devel
 %if 0%{?ffmpeg}
 BuildRequires:  ffmpeg-devel
@@ -82,7 +85,9 @@ make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
 %dir %{_kf5_plugindir}/kfilemetadata/
 %{_kf5_plugindir}/kfilemetadata/kfilemetadata_*.so
 %dir %{_kf5_plugindir}/kfilemetadata/writers/
+%if 0%{?taglib}
 %{_kf5_plugindir}/kfilemetadata/writers/kfilemetadata_taglibwriter.so
+%endif
 
 %files devel
 %{_kf5_libdir}/libKF5FileMetaData.so