* gnu/packages/ebook.scm (calibre)[source]: Reference new patch file.
[inputs]: Add python2-feedparser as an input.
* gnu/packages/patches/calibre-use-packaged-feedparser.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
Signed-off-by: Marius Bakke <mbakke@fastmail.com>