-install -d $RPM_BUILD_ROOT%{_prefix}/books/gdkpixbuf
-install -d $RPM_BUILD_ROOT%{_prefix}/specs
-install gdk-pixbuf.devhelp $RPM_BUILD_ROOT%{_prefix}/specs
-install gdk-pixbuf/* $RPM_BUILD_ROOT%{_prefix}/books/gdkpixbuf
+install -d $RPM_BUILD_ROOT%{_prefix}/{books/gdkpixbuf,specs}
+
+install book.devhelp $RPM_BUILD_ROOT%{_prefix}/specs/gdk-pixbuf.devhelp
+install book/* $RPM_BUILD_ROOT%{_prefix}/books/gdkpixbuf