* gnu/packages/patches/pdfpc-build-with-vala-0.56.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it here.
* gnu/packages/pdf.scm (pdfpc): Use it here.
[inputs]: Drop labels.
Change-Id: Ib762da3dd23612f952215a2f8d383552e7bc050c
Signed-off-by: Christopher Baines <mail@cbaines.net>
