August 2009 Archives

Just recently i switched from windows XP to ubuntu 9.04. I had some problems (Ubuntu freezes when connecting to WLAN) with my wlan drivers (DLink DWA 547) but after installing the compat-wireless package it worked. But its slower and more unstable than on windows. (After upgrading ubuntu and recompiling the package WLAN works as good as on windows). I tried to install ruby 1.9.1 on ubuntu. After several hours of reading articles and googling i put together these install instructions: sudo apt-get install build-essential sudo aptitude install zlib1g sudo aptitude install zlib1g-dev RUBY_FILE = ruby-1.9.1-p243 RUBY_SRC = /usr/local/src/$RUBY_FILE cd /usr/local/src sudo wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/$RUBY_FILE.tar.bz2 sudo tar xvf $RUBY_FILE.tar.bz2 cd $RUBY_SRC # maybe try --disable-pthread : http://timetobleed.com/fix-a-bug-in-rubys-configurein-and-get-a-30-performance-boost/ # several more options available RUBY_OPTIONS="--enable-shared --disable-install-doc" sudo ./configure $RUBY_OPTIONS sudo make && make install Test if the installation worked: $ ruby -v ruby 1.9.1p243 (2009-07-16 revision 24175) [x86_64-linux] Compile readline to get arrow keys support in IRB: # install readline for irb (arrow keys) sudo apt-get install libreadline5 libreadline5-dev cd $RUBY_SRC/ext/readline sudo ruby extconf.rb sudo make sudo make install cd ~ Now ruby 1.9.1 without valgrind is installed. Next install valgrind: VALGRIND_FILE = valgrind-3.4.1 cd /usr/local/src sudo wget http://valgrind.org/downloads/$VALGRIND_FILE.tar.bz2 sudo tar xvf $VALGRIND_FILE.tar.bz2 cd $VALGRIND_FILE sudo ./configure sudo make # make check sudo make install cd ~ Now setup another ruby installation with valgrind support. cd $RUBY_SRC sudo ./configure $RUBY_OPTIONS --with-valgrind --prefix=/opt/ruby-debug sudo make sudo make install cd ~ Then add some handy shortcuts: ln -s /opt/ruby-debug/bin/ruby /usr/local/bin/ruby-debug ln -s /opt/ruby-debug/bin/gem /usr/local/bin/gem-debug For more information see:

• Ruby 1.9.1 installation
• Valgrind and Ruby
• Ubuntu 9.04: Installing Ruby 1.9 with RubyGems from Source
• Compiling Ruby, RubyGems and Rails on Ubuntu
• How to make arrow keys working in irb in Linux/Ubuntu

UPDATE: Added --enable-shared to RUBY_OPTIONS