Error Installing GTK2

[jena peoples]

Two errors actually, the first in installing the gtk2

Computer:~ user$ sudo gem install gtk2

Building native extensions.  This could take a while...

ERROR:  Error installing gtk2:

ERROR: Failed to build gem native extension

 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb

mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/glib2-1.1.3 for inspection.

Results logged to /Library/Ruby/Gems/1.8/gems/glib2-1.1.3/ext/glib2/gem_make.out

--------------------------AND-----------------------------

Computer:~ user$ sudo git clone 'https://code.google.com/p/origami-pdf/' origami

Cloning into 'origami'...

fatal: remote error: Repository not found

Any help or suggestions would be appreciated. 

[Guillaume Delugré]

Hello jena,

Le 23 avr. 2012 à 18:56, jena peoples a écrit :

Two errors actually, the first in installing the gtk2

Computer:~ user$ sudo gem install gtk2

Building native extensions.  This could take a while...

ERROR:  Error installing gtk2:

ERROR: Failed to build gem native extension

 /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb

mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/glib2-1.1.3 for inspection.

Results logged to /Library/Ruby/Gems/1.8/gems/glib2-1.1.3/ext/glib2/gem_make.out

You seem to be using the default Ruby installation on Mac OS.

I encountered no problem when building the gem using a MacPorts installation of Ruby.

--------------------------AND-----------------------------

Computer:~ user$ sudo git clone 'https://code.google.com/p/origami-pdf/' origami

Cloning into 'origami'...

fatal: remote error: Repository not found

Any help or suggestions would be appreciated. 

This is a not a git repository, but a mercurial one :)

So the right command is : 

  hg clone http://code.google.com/p/origami-pdf origami

Regards,

Guillaume

[jena peoples]

[Sanjay Kumar]

I encountered the same problem, it  has dependency on XQuartz.

You have to install XQuartz from https://xquartz.macosforge.org/landing/

then  gem install gtk2 went fine
BTW, to use pdfwalker, you need to have X11 also installed and DISPLAY variable set to :0 and you also have to execute xhost+ command,

otherwise you get an error - cannot open display