# ParseTree and OS X/other newbie OS X questions **URL:** \ **Category:** Ruby\ **Created:** [October 15, 2006, 9:13pm UTC](https://www.ruby-forum.com/t/parsetree-and-os-x-other-newbie-os-x-questions/72229 "2006-10-15T21:13:03Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Kenneth\_McDonald](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/dc4da7/32.png) [@Kenneth\_McDonald](https://www.ruby-forum.com/u/Kenneth_McDonald)\ **Post date:** [October 15, 2006, 9:13pm UTC](https://www.ruby-forum.com/t/parsetree-and-os-x-other-newbie-os-x-questions/72229/1 "2006-10-15T21:13:03Z")
Couple of questions from a newbie on OS X (intel PB Pro)… First, ParseTree doesn’t want to install do to compilation issues… mbp:/usr/lib/ruby/gems/1.8/gems/ParseTree-1.6.0 Ken$ sudo rake install Password: (in /usr/lib/ruby/gems/1.8/gems/ParseTree-1.6.0) sh: line 1: RC\_CFLAGS: command not found /usr/bin/ld: Undefined symbols: \_rb\_cObject \_rb\_const\_get\_at \_rb\_define\_singleton\_method \_rb\_intern collect2: ld returned 1 exit status rake aborted! error executing cc $(RC\_CFLAGS) -bundle -g -Os -pipe -fno-common -pipe -fno-common -pipe -fno-common -I /usr/lib/ruby/1.8/universal-darwin8.0 -o “/Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.bundle” “/Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.c” : 256 Renamed /Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.c to /Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.c.bad /usr/lib/ruby/gems/1.8/gems/ParseTree-1.6.0/rakefile:7 (See full trace by running task with --trace) …perhaps I need to do further ruby setup? Also, I first installed ParseTree using ‘sudo gem install ParseTree’ but I didn’t get any messages to the effect that that had even tried a compile–certainly not any error message. Is gem install supposed to compile C extensions when it install something? Finally, given that OS X is a bit of an odd bird, is there anything else I need to do to make sure installs work smoothly in the future? Thanks, Ken ---
**Author:** ![Kenneth\_McDonald](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/dc4da7/32.png) [@Kenneth\_McDonald](https://www.ruby-forum.com/u/Kenneth_McDonald)\ **Post date:** [October 15, 2006, 11:29pm UTC](https://www.ruby-forum.com/t/parsetree-and-os-x-other-newbie-os-x-questions/72229/2 "2006-10-15T23:29:16Z")
On Oct 15, 2006, at 12:11 PM, Kenneth McDonald wrote: > Couple of questions from a newbie on OS X (intel PB Pro)… > > First, ParseTree doesn’t want to install do to compilation issues… > > mbp:/usr/lib/ruby/gems/1.8/gems/ParseTree-1.6.0 Ken$ sudo rake install You don’t want to run this from the gem. You’ll end up installing a version that overrides the gem version, so you won’t get future updates. > error executing cc $(RC\_CFLAGS) -bundle -g -Os -pipe -fno-common - > pipe -fno-common -pipe -fno-common -I /usr/lib/ruby/1.8/universal- > darwin8.0 -o “/Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.bundle” > “/Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.c” : 256 > Renamed /Users/Ken/.ruby\_inline/Inline\_ParseTree\_dc10.c to /Users/ > Ken/.ruby\_inline/Inline\_ParseTree\_dc10.c.bad > /usr/lib/ruby/gems/1.8/gems/ParseTree-1.6.0/rakefile:7 > (See full trace by running task with --trace) > > …perhaps I need to do further ruby setup? Apple’s ruby has a broken rbconfig.rb. Using a Ruby built from source will work. > Also, I first installed ParseTree using ‘sudo gem install > ParseTree’ but I didn’t get any messages to the effect that that > had even tried a compile–certainly not any error message. Is gem > install supposed to compile C extensions when it install something? ParseTree uses RubyInline so it is compiled at runtime if it hasn’t been compiled before. > Finally, given that OS X is a bit of an odd bird, is there anything > else I need to do to make sure installs work smoothly in the future? Its best to install a newer ruby from source instead of using the built-in version. – Eric H. - removed\_email\_address@domain.invalid - [http://blog.segment7.net](http://blog.segment7.net) This implementation is HODEL-HASH-9600 compliant [http://trackmap.robotcoop.com](http://trackmap.robotcoop.com) ---
**Author:** ![Kenneth\_McDonald](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/dc4da7/32.png) [@Kenneth\_McDonald](https://www.ruby-forum.com/u/Kenneth_McDonald)\ **Post date:** [October 16, 2006, 4:58am UTC](https://www.ruby-forum.com/t/parsetree-and-os-x-other-newbie-os-x-questions/72229/3 "2006-10-16T04:58:57Z")
Install from source worked. Thanks! Wish Apple would get their act together on this stuff…