[DRE-maint] Bug#854898: rbenv: ```rbenv install 2.2.1``` doesn't install correctly

[Xavier Ortiz]

Package: rbenv
Version: 1.0.0-1
Severity: normal

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
typing ```rbenv install 2.2.1``` in console
   * What exactly did you do (or not do) that was effective (or
     ineffective)?

   * What was the outcome of this action?

Last 10 log lines:
make[2]: Leaving directory '/tmp/ruby-
build.20170211121113.31464/ruby-2.2.1/ext/psych'
linking shared-object pathname.so
make[2]: Leaving directory '/tmp/ruby-
build.20170211121113.31464/ruby-2.2.1/ext/pathname'
linking shared-object date_core.so
make[2]: Leaving directory '/tmp/ruby-
build.20170211121113.31464/ruby-2.2.1/ext/date'
linking shared-object nkf.so
make[2]: Leaving directory '/tmp/ruby-
build.20170211121113.31464/ruby-2.2.1/ext/nkf'
make[1]: Leaving directory '/tmp/ruby-build.20170211121113.31464/ruby-2.2.1'
uncommon.mk:189: recipe for target 'build-ext' failed
make: *** [build-ext] Error 2

   * What outcome did you expect instead?
I expected to have an accessible version of ruby. Specifically version 2.2.1 .

*** End of the template - remove these template lines ***



-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages rbenv depends on:
ii  ruby                        1:2.3.3
ii  ruby2.1 [ruby-interpreter]  2.1.5-2+deb8u3

rbenv recommends no packages.

rbenv suggests no packages.

-- no debconf information