ERROR: Failed to build gem native extension

ruby-talk
1

Can anyone tell this noob what I've done wrong? I tried to install rmagick,
but apparently it fails.

C:\InstantRails\rails_apps>gem install rmagick -r
Need to update 31 gems from http://gems.rubyforge.org
...............................
complete
Building native extensions. This could take a while...
gem_extconf.rb:38: undefined method `exitstatus' for nil:NilClass
(NoMethodError
)

ERROR: While executing gem ... (RuntimeError)
    ERROR: Failed to build gem native extension.
Gem files will remain installed in
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/r
magick-1.14.1 for inspection.

Results logged to C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/rmagick-1.14.1
/gem
_make.out

Thanks Greg

···

--
"Politicians are like diapers, both need to be changed frequently and for
the same reasons."

Greg Pederson
Greg.Pederson@gmail.com

2

Greg Pederson wrote:

Can anyone tell this noob what I've done wrong? I tried to install rmagick,
but apparently it fails.

C:\InstantRails\rails_apps>gem install rmagick -r
Need to update 31 gems from http://gems.rubyforge.org
...............................
complete
Building native extensions. This could take a while...
gem_extconf.rb:38: undefined method `exitstatus' for nil:NilClass
(NoMethodError
)

ERROR: While executing gem ... (RuntimeError)
   ERROR: Failed to build gem native extension.
Gem files will remain installed in
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/r
magick-1.14.1 for inspection.

Results logged to C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/rmagick-1.14.1
/gem
_make.out

Thanks Greg

To install RMagick on Windows, use the rmagick-win32 gem. See http://rmagick.rubyforge.org/install-faq.html\.

3

OK thanks, however, I'm a little confused. I used gem install -r command to
install ajax_scaffold. Is the procedure for installing rmagick different
because it's bundled with other things...like ImageMagick?

Just curious.
Thanks.

···

On 1/19/07, Timothy Hunter <TimHunter@nc.rr.com> wrote:

Greg Pederson wrote:
> Can anyone tell this noob what I've done wrong? I tried to install
> rmagick,
> but apparently it fails.
>
> C:\InstantRails\rails_apps>gem install rmagick -r
> Need to update 31 gems from http://gems.rubyforge.org
> ...............................
> complete
> Building native extensions. This could take a while...
> gem_extconf.rb:38: undefined method `exitstatus' for nil:NilClass
> (NoMethodError
> )
>
> ERROR: While executing gem ... (RuntimeError)
> ERROR: Failed to build gem native extension.
> Gem files will remain installed in
> C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/r
> magick-1.14.1 for inspection.
>
> Results logged to
> C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/rmagick-1.14.1
> /gem
> _make.out
>
> Thanks Greg
To install RMagick on Windows, use the rmagick-win32 gem. See
http://rmagick.rubyforge.org/install-faq.html\.

--
"Politicians are like diapers, both need to be changed frequently and for
the same reasons."

Greg Pederson
Greg.Pederson@gmail.com

4

Greg Pederson wrote:

OK thanks, however, I'm a little confused. I used gem install -r command to
install ajax_scaffold. Is the procedure for installing rmagick different
because it's bundled with other things...like ImageMagick?

Partly. The "rmagick" gem includes the source code for RMagick. It configures itself to the version of ImageMagick that is installed on the system and then compiles RMagick for that version. The "rmagick-win32" gem is pre-compiled and is configured for use the specific version of ImageMagick it is bundled with.