Issue #14002 has been updated by nobu (Nobuyoshi Nakada).


LIBRUBY_SO is not for "SONAME" in your terminology, it's just the real file name of the shared library, which is probably "SOVERSION path" in your words.
We haven't provided a variable for the "SONAME", which may be needed.

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Bug #14002: libruby soname is changing in Ruby 2.4.x while it should always be libruby.so.2.4.0
https://bugs.ruby-lang.org/issues/14002#change-67163

* Author: vo.x (Vit Ondruch)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-linux]
* Backport: 2.3: UNKNOWN, 2.4: REQUIRED
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Since the Ruby 2.4.x keeps ABI compatibility with Ruby 2.4.0 (I hope at least), the so name should keep the libruby.so.2.4.0 during the whole Ruby 2.4 lifetime. This always used to be true, while in Ruby 2.4, the soname is surprisingly changing (and it affects Fedora users [1]).

Actually this is not just about the soname, the RbConfig::CONFIG["TEENY"] value is impacted by this as well. This was always "0" since the patch releases were abandoned. But now it changes.

I tried to revert r53566, r53500 and r5347 but apparently, this was not enough :/


[1]: https://bugzilla.redhat.com/show_bug.cgi?id=1499928



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