Bug#906959: sketch FTBFS arch-only: dh_installman: Cannot find (any matches for) "sketch.1" (tried in .)

[Helmut Grohne]

Source: sketch
Version: 1:0.3.7-6
Severity: serious
Tags: ftbfs
User: helmutg at debian.org
Usertags: rebootstrap

sketch fails to build from source in unstable on amd64 when performing
an arch-only build. A log ends with:

| dh binary-arch
|    dh_testroot -a
|    dh_prep -a
|    dh_auto_install -a
|    dh_install -a
|    dh_installdocs -a
|    dh_installchangelogs -a
|    dh_installexamples -a
|    dh_installman -a
| dh_installman: Cannot find (any matches for) "sketch.1" (tried in .)
| 
| dh_installman: Aborting due to earlier error
| make: *** [debian/rules:21: binary-arch] Error 25
| dpkg-buildpackage: error: fakeroot debian/rules binary-arch subprocess returned exit status 2

I vaguely remember that debhelper got stricter about missing files at
some point. The last buildd log for amd64 also says:

| dh_installman: Cannot find (any matches for) "sketch.1" (tried in .)

It didn't fail there. Sounds plausible, no?

Helmut