Michael Henry wrote:
> On 08/03/2013 08:59 PM, James McCoy wrote:
> > Notice how the version number here doesn't match the version number in
> > the previous command? RbConfig::CONFIG['ruby_version'] reports the API
> > version, while VERSION/RUBY_VERSION report the release version.
> >
> > $ ruby --version
> > ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]
> > $ ruby -e 'puts ((VERSION rescue RUBY_VERSION))'
> > 1.9.3
> > $ ruby -r rbconfig -e "puts RbConfig::CONFIG['ruby_version']"
> > 1.9.1
> >
> > What Vim needs to know is the API version, not the release version.
>
> Thanks - that's informative. Would RUBY_VERSION and
> ruby_version ever differ in their major.minor values? Vim's
> configure script concatenates the major and minor number to get
> a single integer (19 or 20 for 1.9.x or 2.0.y), ignoring the
> third number entirely. If the API and release versions can
> differ in their major.minor value, then as you say, this patch
> to use RUBY_VERSION wouldn't work. If there is not another way
> to query the API version (which I could believe), then it seems
> that Fedora 19's build of Ruby is broken, since 'ruby_version'
> is set to an empty string on that platform::
>
> [root@fedora19 ~]# ruby -r rbconfig -e "puts
> RbConfig::CONFIG['ruby_version']"
>
> [root@fedora19 ~]#
How about only using the VERSION when the other one is empty? Does this
work for you or generate some error (in src/auto/configure):
rubyversion=`$vi_cv_path_ruby -r rbconfig -e "print
$ruby_rbconfig::CONFIG['ruby_version'].gsub(/\./, '')[0,2]"`
if test "X$rubyversion" = "X"; then
rubyversion=`$vi_cv_path_ruby -e "print ((VERSION rescue
RUBY_VERSION)).gsub(/\./, '')[0,2]"`
fi
> I'm not very familiar with Ruby, so before I reopen the below
> Fedora ticket (which the maintainer marked "CLOSED NOTABUG"),
> would you be able to point me at some official Ruby
> documentation that requires 'ruby_version' to contain something
> useful? My searching didn't show anything I could recognize as
> authoritative.
>
> This is the Fedora ticket in question:
> https://bugzilla.redhat.com/show_bug.cgi?id=923703
>
> The comment from the maintainer is:
>
> """
> >From Vít Ondruch 2013-03-20 07:10:25 EDT
>
> You are right. That is coming into that place due to
> "--with-ruby-version=''" configuration option. Since you can
> specify there any arbitrary string (if I am not mistaken) using
> that option, I don't think you get what you want.
>
> I am going to reject this issue. If you disagree then we can
> consider upstream report. Also, if you provide me with your use
> case, we might find some better option.
> """
>
> I don't understand why Vít talks about an "upstream report",
> since that makes it seems like something the Ruby project itself
> would need to address; but if Ruby installations are expected to
> provide an API version for 'ruby_version' and I can point at
> some documentation that says so, I'll reopen the Fedora ticket.
>
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