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comp.lang.ruby

Re: upgrade on OS X

Bob Hutchison

10/28/2006 12:28:00 PM


On 27-Oct-06, at 6:56 PM, Tim McIntyre wrote:

> Hey all,
>
> Wasn't sure if this should go to the ruby or rails list but here we
> are...
>
> I've been running OS X (10.8.4) with the packaged ruby (1.8.2) and
> rails for some time, no problems. I decided to test out mongrel
> but that requires >= 1.8.4 so I grabbed the 1.8.5 source, built
> that then modified my path and all good... up and running.
>
> The problem is all my gems are gone. Well they're not gone of
> course but "gem list --local" shows nothing and, of course, nothing
> that depends on them works. I've looked around a good bit but
> haven't seen anything about this.
>
> Any ideas on why this is?


The ruby as shipped by apple is not in the same place on disk as the
1.8.5 distribution you built. In my case 1.8.5 is in /usr/local/...
and so the gems are in /usr/local/lib/ruby/gems/1.8/gems/ -- your
gems won't be there.

You can set the GEM_HOME environment variable, or re-install your
gems. I re-installed.

BTW, if you are using gcc4 as shipped by Apple, you should re-compile
with -O or -O1 rather than -O2, or use gcc3 -- with -O2 you will get
strange heap problems after running ruby for a while.

Cheers,
Bob

>
> Thanks in advance!
> Tim
>
> Be who you are and say what you feel, because those who mind don't
> matter and those who matter don't mind.
> - Dr. Seuss
>
>
>
>

----
Bob Hutchison -- blogs at <http://www.rec...
hutch/>
Recursive Design Inc. -- <http://www.rec...>
Raconteur -- <http://www.raconteur...
xampl for Ruby -- <http://rubyforge.org/projects/...
2 Answers

M. Edward (Ed) Borasky

10/28/2006 7:02:00 PM

0

Bob Hutchison wrote:
> BTW, if you are using gcc4 as shipped by Apple, you should re-compile
> with -O or -O1 rather than -O2, or use gcc3 -- with -O2 you will get
> strange heap problems after running ruby for a while.

Has a bug been filed on this? Is it unique to Macs, or will any gcc 4
show it?

I run Gentoo Linux, Ruby 1.8.5 and gcc 4.1.1. If there are "strange heap
problems", I'd like to be able to reproduce them and get them fixed!

Bob Hutchison

10/29/2006 2:50:00 PM

0


On 28-Oct-06, at 3:01 PM, M. Edward (Ed) Borasky wrote:

> Bob Hutchison wrote:
>> BTW, if you are using gcc4 as shipped by Apple, you should re-compile
>> with -O or -O1 rather than -O2, or use gcc3 -- with -O2 you will get
>> strange heap problems after running ruby for a while.
>
> Has a bug been filed on this? Is it unique to Macs, or will any gcc 4
> show it?

Yes, it is 'well' known to apple and the GNU folks. My understanding
is that it was fixed in the very early days of gcc4 but after Apple
took their snapshot (gcc 4.0.1). There hasn't been a patch, at least
I'm not aware of a patch. It shouldn't affect anyone running on linux
anymore (it doesn't affect me on linux).

The bug shows up after a few hours to several days of ruby running.
It apparently either won't or is *very* unlikely to occur in programs
running for less time than that (most ruby programs do not run that
long, I'm running a Rails in Mongrel application that never stops).


Here is a thread that I started last April: <http://
blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/189287>. There
are links in that thread to more information about the problem.

Cheers,
Bob

>
> I run Gentoo Linux, Ruby 1.8.5 and gcc 4.1.1. If there are "strange
> heap
> problems", I'd like to be able to reproduce them and get them fixed!
>
>
>

----
Bob Hutchison -- blogs at <http://www.rec...
hutch/>
Recursive Design Inc. -- <http://www.rec...>
Raconteur -- <http://www.raconteur...
xampl for Ruby -- <http://rubyforge.org/projects/...