Hey Noe,

You're having a compiler issue. What OS are you on? If Ubuntu or Debian, try"apt-get build-essential". If Mac OS, install xtools. 

You probably need the automake toolchain too. Check google. 

Jams

On Jun 3, 2012, at 3:14 PM, "No Alejandro" <lists / ruby-forum.com> wrote:

> Hello everybody.
> 
> I've been found plenty of information related to this problem, but I
> can't solve mine. When I try to install bson_ext I get this (details of
> my
> configuration are below):
> 
> $ sudo gem install bson_ext
> Building native extensions. This could take a while...
> ERROR: Error installing bson_ext:
> ERROR: Failed to build gem native extension.
> 
> /usr/bin/ruby1.9.1 extconf.rb
> checking for asprintf()... *** extconf.rb failed ***
> Could not create Makefile due to some reason, probably lack of
> necessary libraries and/or headers. Check the mkmf.log file for more
> details. You may need configuration options.
> 
> Provided configuration options:
> --with-opt-dir
> --without-opt-dir
> --with-opt-include
> --without-opt-include=${opt-dir}/include
> --with-opt-lib
> --without-opt-lib=${opt-dir}/lib
> --with-make-prog
> --without-make-prog
> --srcdir=.
> --curdir
> --ruby=/usr/bin/ruby1.9.1
> /usr/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to
> generate an executable file. (RuntimeError)
> You have to install development tools first.
> from /usr/lib/ruby/1.9.1/mkmf.rb:461:in `try_link0'
> from /usr/lib/ruby/1.9.1/mkmf.rb:476:in `try_link'
> from /usr/lib/ruby/1.9.1/mkmf.rb:619:in `try_func'
> from /usr/lib/ruby/1.9.1/mkmf.rb:894:in `block in have_func'
> from /usr/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
> from /usr/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
> from /usr/lib/ruby/1.9.1/mkmf.rb:254:in `open'
> from /usr/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
> from /usr/lib/ruby/1.9.1/mkmf.rb:254:in `open'
> from /usr/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
> from /usr/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
> from /usr/lib/ruby/1.9.1/mkmf.rb:893:in `have_func'
> from extconf.rb:3:in `<main>'
> 
> 
> Gem files will remain installed in
> /usr/lib/ruby/gems/1.9.1/gems/bson_ext-1.6.2 for inspection.
> Results logged to
> /usr/lib/ruby/gems/1.9.1/gems/bson_ext-1.6.2/ext/cbson/gem_make.out
> 
> 
> ------------------------------
> 
> My current configuration is:
> 
> $ which ruby
> /usr/bin/ruby
> 
> $ whereis ruby
> ruby: /usr/bin/ruby /usr/bin/ruby1.8 /usr/lib/ruby /usr/bin/X11/ruby
> /usr/bin/X11/ruby1.8 /usr/share/man/man1/ruby.1.gz
> 
> $ ruby -v
> ruby 1.9.3p0 (2011-10-30 revision 33570) [i686-linux]
> 
> $ gem list
> *** LOCAL GEMS ***
> 
> bson (1.6.2)
> bundle (0.0.1)
> bundler (1.1.4)
> libv8 (3.10.8.0)
> mongo (1.6.2)
> 
> $ ls -l /usr/bin/ruby*
> lrwxrwxrwx 1 root root 9 may 29 18:40 /usr/bin/ruby -> ruby1.9.1
> -rwxr-xr-x 1 root root 5504 mar 3 09:21 /usr/bin/ruby1.8
> -rwxr-xr-x 1 root root 5516 dic 2 2011 /usr/bin/ruby1.9.1
> 
> $ ls -l /usr/bin/gem*
> lrwxrwxrwx 1 root root 8 may 29 18:40 /usr/bin/gem -> gem1.9.1
> -rwxr-xr-x 1 root root 888 jun 3 10:54 /usr/bin/gem1.9.1
> 
> 
> And I have installed ruby-dev. I will appreciate any suggestion. Thanks
> in advance.
> 
> -- 
> Posted via http://www.ruby-forum.com/.
>