Bug#790089: FTBFS: makeinfo could not open stumpwm.texi: No such file or directory

[Chris West (Faux)]

Package: stumpwm
Version: 2:0.9.9-1
Severity: serious
Justification: fails to build from source (but built successfully in the past)
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs


Dear Maintainer,

The package fails to build:

(SB-IMPL::READER-FIND-PACKAGE "STUMPWM" #<SB-IMPL::STRING-INPUT-STREAM {100BBEA603}>)
0] 
* makeinfo stumpwm.texi
could not open stumpwm.texi: No such file or directory
Makefile:36: recipe for target 'stumpwm.info' failed
make[1]: *** [stumpwm.info] Error 1

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/stumpwm.html

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-21-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)