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Installing Ruby 1.9.3 w/ RVM on Mac OSX Lion

January 13, 2012 Adam Berlin

  • Ruby 1.9.3
  • RVM 1.10.0
  • Mac OSX 10.7.2
  • XCode 4.2

Our team ran into an issue installing Ruby 1.9.3 on Lion today. When running…

$ rvm install ruby-1.9.3

… the installer fails with an error message including “checking whether the C compiler works… no” even though we had XCode and gcc installed.

After some reading on StackOverflow and Github I found this solution [1]…

$ rvm install 1.9.3-p0 --with-gcc=clang

… which points an explanation on RVM’s issue tracker [2].

  1. http://stackoverflow.com/questions/8675194/error-installing-1-9-3-with-rvm-on-lion
  2. https://github.com/wayneeseguin/rvm/issues/534

See our full command line history and error messages below:

$ rvm install ruby-1.9.3-p0
Installing Ruby from source to:     /Users/foobar/.rvm/rubies/ruby-1.9.3-p0, this may take a while depending on your cpu(s)...

ruby-1.9.3-p0 - #fetching
ruby-1.9.3-p0 - #extracted to /Users/foobar/.rvm/src/ruby-1.9.3-p0 (already extracted)
Fetching yaml-0.1.4.tar.gz to /Users/foobar/.rvm/archives
Extracting yaml-0.1.4.tar.gz to /Users/foobar/.rvm/src
Configuring yaml in /Users/foobar/.rvm/src/yaml-0.1.4.
Compiling yaml in /Users/foobar/.rvm/src/yaml-0.1.4.
Installing yaml to /Users/foobar/.rvm/usr
ruby-1.9.3-p0 - #configuring
ERROR: Error running ' ./configure -- prefix=/Users/foobar/.rvm/rubies/ruby-1.9.3-p0 --enable- shared --disable-install-doc --with-libyaml- dir=/Users/foobar/.rvm/usr ', please read  /Users/foobar/.rvm/log/ruby-1.9.3-p0/configure.log
ERROR: There has been an error while running configure.  Halting the installation.

$ cat /Users/foobar/.rvm/log/ruby-1.9.3-p0/configure.log
[2012-01-13 10:31:49]  ./configure -- prefix=/Users/foobar/.rvm/rubies/ruby-1.9.3-p0 --enable-shared --disable-install-doc --with-libyaml- dir=/Users/foobar/.rvm/usr
configure: WARNING: unrecognized options: --with-libyaml-dir
checking build system type... x86_64-apple-darwin11.2.0
checking host system type... x86_64-apple-darwin11.2.0
checking target system type... x86_64-apple-darwin11.2.0
checking whether the C compiler works... no
configure: error: in `/Users/foobar/.rvm/src/ruby-1.9.3-p0':
configure: error: C compiler cannot create executables
See `config.log' for more details

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