<link project="openSUSE.org:SUSE:SLE-15:Update" package="systemd-rpm-macros">

<patches>

  <!-- <branch /> for a full copy, default case  -->

  <!-- <apply name="patch" /> apply a patch on the source directory  -->

  <!-- <topadd>%define build_with_feature_x 1</topadd> add a line on the top (spec file only) -->

  <!-- <add name="file.patch" /> add a patch to be applied after %setup (spec file only) -->

  <!-- <delete name="filename" /> delete a file -->

</patches>

</link>

​