Necessary information for bundler issue with ruby 1.8.7 and native extension

bundler information

Command I ran:

bundle install --path vendor/local

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stacktrace:

stacktrace:

Fetching gem metadata from http://rubygems.org/..
Installing json (1.7.3) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /home/leifg/.rbenv/versions/1.8.7-p352/bin/ruby extconf.rb 
creating Makefile

make
Makefile:128: warning: overriding commands for target `/home/leifg/code/other/a'
Makefile:122: warning: ignoring old commands for target `/home/leifg/code/other/a'
Makefile:128: warning: overriding commands for target `space'
Makefile:122: warning: ignoring old commands for target `space'
/usr/bin/gcc -I. -I/home/leifg/.rbenv/versions/1.8.7-p352/lib/ruby/1.8/x86_64-linux -I/home/leifg/.rbenv/versions/1.8.7-p352/lib/ruby/1.8/x86_64-linux -I. -I'/home/leifg/.rbenv/versions/1.8.7-p352/include'    -fPIC -g -O3  -Wall  -c parser.c
/usr/bin/gcc -shared -o parser.so parser.o -L. -L/home/leifg/.rbenv/versions/1.8.7-p352/lib -Wl,-R/home/leifg/.rbenv/versions/1.8.7-p352/lib -L. -L'/home/leifg/.rbenv/versions/1.8.7-p352/lib'  -rdynamic -Wl,-export-dynamic    -lrt -ldl -lcrypt -lm   -lc

make install
Makefile:128: warning: overriding commands for target `/home/leifg/code/other/a'
Makefile:122: warning: ignoring old commands for target `/home/leifg/code/other/a'
Makefile:128: warning: overriding commands for target `space'
Makefile:122: warning: ignoring old commands for target `space'
mkdir -p /home/leifg/code/other/a
mkdir -p space
mkdir -p path/vendor/local/ruby/1.8/gems/json-1.7.3/lib/json/ext
/usr/bin/install -c -m 0755 parser.so /home/leifg/code/other/a space path/vendor/local/ruby/1.8/gems/json-1.7.3/lib/json/ext
/usr/bin/install: omitting directory `/home/leifg/code/other/a'
/usr/bin/install: omitting directory `space'
make: *** [path/vendor/local/ruby/1.8/gems/json-1.7.3/lib/json/ext/parser.so] Error 1


Gem files will remain installed in /home/leifg/code/other/a space path/vendor/local/ruby/1.8/gems/json-1.7.3 for inspection.
Results logged to /home/leifg/code/other/a space path/vendor/local/ruby/1.8/gems/json-1.7.3/ext/json/ext/parser/gem_make.out
An error occured while installing json (1.7.3), and Bundler cannot continue.
Make sure that `gem install json -v '1.7.3'` succeeds before bundling.

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Gemfile:

source :rubygems

gem 'json'

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Gemfile.lock:


GEM
  remote: http://rubygems.org/
  specs:
    json (1.7.3)

PLATFORMS
  ruby

DEPENDENCIES
  json

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bundler config:

Settings are listed in order of priority. The top value will be used.

disable_shared_gems
  Set for your local app (/home/leifg/code/other/a space path/.bundle/config): "1"

path
  Set for your local app (/home/leifg/code/other/a space path/.bundle/config): "vendor/local"

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bundler version: 1.1.4 (also tried with 1.1.3 and 1.0.21)

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ruby version: ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] (using rbenv)

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gem version: 1.8.15

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neither rubygems-bundler nor open_gem is installed