Eric Hodel
3/27/2009 6:54:00 PM
On Mar 26, 2009, at 23:32, Jj Jj wrote:
> Ryan Davis wrote:
>> On Mar 26, 2009, at 23:11 , Jj Jj wrote:
>>
>>> I am working on a windows box attempting to develop a rails
>>> application.
>>> Is there a way to ensure "gem update" or "gem install x" will not
>>> try to
>>> download and compile native ruby gems ?
>>
>> rubygems will download any platform specific gem first if it exists.
>> Otherwise it'll download the "ruby" platform. If that gem specifies
>> that it has extensions to build, it'll try to build them. There may
>> be
>> some extra way to specify that you don't want builds to occur, but I
>> don't know it. See `gem help install` for more.
>
> Thank you for the information. I have reviewed the information for
> both
> install and update.
>
> Does anyone if there is a way to not default back to the ruby
> platform ?
As of RubyGems 1.3 (IIRC), a failed build shouldn't result in an
installed gem.
I don't have MySQL installed on my system, but I forced an install of
the gem:
$ gem list mysql
*** LOCAL GEMS ***
mysql (2.5.1)
$ gem list mysql
*** LOCAL GEMS ***
mysql (2.5.1)
$ sudo gem update mysql
Updating installed gems
Updating mysql
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
[...]
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/
mysql-2.5.1 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.5.1/gem_make.out
Nothing to update
$ gem list mysql
*** LOCAL GEMS ***
mysql (2.5.1)
$
So nothing was updated, even though RubyGems tried it's hardest to do
what you want.