[Reproducible-builds] Bug#793581: FTBFS: Can't exec "automake-1.14" [..] Autom4te/FileUtils.pm

[Chris West (Faux)]

Source: libgadu
Version: 1:1.12.0-5
Severity: serious
Tags: sid stretch
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:

libtoolize: copying file `m4/lt~obsolete.m4'
Can't exec "automake-1.14": No such file or directory at /usr/share/autoconf/Autom4te/FileUtils.pm line 326, <GEN2> line 5.
autoreconf: failed to run automake-1.14: No such file or directory
        find ! -ipath "./debian/*" -a ! \( -path '*/.git/*' -o -path '*/.hg/*' -o -path '*/.bzr/*' -o -path '*/.svn/*' -o -path '*/CVS/*' \) -a  -type f -exec md5sum {} \; > debian/autoreconf.after
dh_autoreconf: autoreconf -f -i returned exit code 1
debian/rules:19: recipe for target 'build' failed


Looks like automake transitioned 1.14 -> 1.15 ~ 2015-07-15.

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

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

Kernel: Linux 3.19.0-23-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)