Bug #12956: require a native library that yields the error 'incompatiable library version' shuts down the interpreter fatally

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.3.2p217 (2016-11-15 revision 56796) [x86_64-darwin16]
• Backport: 2.1: REQUIRED, 2.2: DONE, 2.3: DONE

[gizmomogwai (Christian Köstlin)]

I would like to rescue from this in ruby-code.
Looking at the source in dln.c around line 1334 shows, that there is a special APPLE define with a comment that suggests, that properly cleaning up with dlclose crashes.
Disabling the special handling on my machine running OSX Sierra 10.12.1 did not show the crashing behavior, but instead I was able to rescue from the LoadError.
To reproduce I attached my native extension. To reproduce this just run irb -I. and require 'dotstar'

[nobu (Nobuyoshi Nakada)]

• Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN to 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED

Thank you for heading up.

I found that it works on OS X El Capitan too.
It was OS X Yosemite when I added that line (May 2015), and probably dlclose was fixed in El Capitan.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r56832.

---

dln.c: raise LoadError

• dln.c (dln_load): raise LoadError instead of fatal error on
  recent OSX, dlclose seems fixed in El Capitan or later.
  [ruby-core:78200] [Bug #12956]

[gizmomogwai (Christian Köstlin)]

Thanks Nobuyoshi Nakada.
That was really fast. Looking forward to the next release containing this patch :)
Do you have an eta for this?

[usa (Usaku NAKAMURA)]

• Backport changed from 2.1: REQUIRED, 2.2: REQUIRED, 2.3: REQUIRED to 2.1: REQUIRED, 2.2: DONE, 2.3: REQUIRED

ruby_2_2 r57208 merged revision(s) 56832.

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.1: REQUIRED, 2.2: DONE, 2.3: REQUIRED to 2.1: REQUIRED, 2.2: DONE, 2.3: DONE

ruby_2_3 r57344 merged revision(s) 56832.