[Debian-med-packaging] Bug#721780: htseq: FTBFS: dh_sphinxdoc: Sphinx documentation not found

[Aaron M. Ucko]

Source: htseq
Version: 0.5.4p3-1
Severity: serious
Justification: fails to build from source

Builds of htseq covering only its architecture-dependent binary
package (as on the autobuilders, or with dpkg-buildpackage -B) have
been failing:

     dh_sphinxdoc -a
  dh_sphinxdoc: Sphinx documentation not found
  make: *** [binary-arch] Error 2

Please conditionalize dh_sphinxdoc's usage appropriately.

Thanks!