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Ruby 2.0.0 gem install error

Hello,

I am having difficulties installing a gem on Ruby 2.0.0. I have done this on five other Ubuntu 16.04 computers with no errors, but my last two builds are giving me a challenge. I installed dependencies: sudo apt-get install zlib1g-dev openssl libopenssl-ruby1.9.1 libssl-dev libruby1.9.1 libreadline-dev git-core bison - others have noted. The gem error is:

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

sudo gem install gtk2 -v 3.0.8 > ../gem.log
ERROR: Error installing gtk2:
ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb
checking for --enable-debug-build option... no
checking for -Wall option to compiler... yes
checking for -Waggregate-return option to compiler... yes
checking for -Wcast-align option to compiler... yes
checking for -Wextra option to compiler... yes
checking for -Wformat=2 option to compiler... yes
checking for -Winit-self option to compiler... yes
checking for -Wlarger-than-65500 option to compiler... yes
checking for -Wmissing-declarations option to compiler... yes
checking for -Wmissing-format-attribute option to compiler... yes
checking for -Wmissing-include-dirs option to compiler... yes
checking for -Wmissing-noreturn option to compiler... yes
checking for -Wmissing-prototypes option to compiler... yes
checking for -Wnested-externs option to compiler... yes
checking for -Wold-style-definition option to compiler... yes
checking for -Wpacked option to compiler... yes
checking for -Wp,-D_FORTIFY_SOURCE=2 option to compiler... yes
checking for -Wpointer-arith option to compiler... yes
checking for -Wswitch-default option to compiler... yes
checking for -Wswitch-enum option to compiler... yes
checking for -Wundef option to compiler... yes
checking for -Wout-of-line-declaration option to compiler... no
checking for -Wunsafe-loop-optimizations option to compiler... yes
checking for -Wwrite-strings option to compiler... yes
checking for rb_define_alloc_func() in ruby.h... yes
checking for rb_block_proc() in ruby.h... yes
checking for new allocation framework... yes
checking for attribute assignment... no
checking for rb_errinfo()... yes
checking for cairo... yes
checking for rb_cairo.h... yes
checking for Windows... no
checking for gtk+-2.0 version (>= 2.10.0)... yes
checking for st.h... yes
checking for ruby/st.h... yes
checking for target... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.

Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/bin/ruby
--enable-debug-build
--disable-debug-build
--with-pkg-config
--without-pkg-config
--with-override-variables
--without-override-variables
extconf.rb:80:in `<main>': can't find gdkkeysyms.h (RuntimeError)
x11

Gem files will remain installed in /usr/local/lib/ruby/gems/2.0.0/gems/gtk2-3.0.8 for inspection.
Results logged to /usr/local/lib/ruby/gems/2.0.0/gems/gtk2-3.0.8/ext/gtk2/gem_make.out

I can post the configure output, the make output, and the make install output if needed.

Could this be an incompatibility between the installed Gtk-2 libraries and the gem?
AFAIS, the current Gtk2 gem is 3.1.8. If you do not have special reasons to stick with 3.0.8, maybe just execute

Code:

:~$ sudo gem install gtk2

The missing header should be found in a location like

Code:

user@machine:~$ locate gdkkeysyms.h

/usr/include/gtk-2.0/gdk/gdkkeysyms.h

/usr/include/gtk-3.0/gdk/gdkkeysyms.h

If you do not find it, then your Gtk-libraries are not installed in the way that the gem requires. Pay attention to the fact that this is a C-header, as part of the Gtk-API; meaning, that the development-version of Gtk is needed!!

Question for the forum direction: Should this be moved to “programming”?

Hello,

Code:

locate gdkkeysyms.h

/usr/include/gtk-2.0/gdk/gdkkeysyms.h

/usr/include/gtk-3.0/gdk/gdkkeysyms.h

I need to use Ruby 2.0.0, therefore I need v 3.0.8. I installed this on 5 other Ubuntu 16.04 computers with no challenges. I must have installed something that put the proper files down for it to install.

Code:

sudo gem install gtk2

ERROR:  Error installing gtk2:

        glib2 requires Ruby version >= 2.1.0.



sudo apt-get install libgtk-3-devReading package lists... Done

Building dependency tree      

Reading state information... Done

libgtk-3-dev is already the newest version (3.18.9-1ubuntu3.3).



sudo apt-get install libgtk2.0-devReading package lists... Done

Building dependency tree      

Reading state information... Done

libgtk2.0-dev is already the newest version (2.24.30-1ubuntu1.16.04.2).

On the computers I did install successfully:

Code:

locate gdkkeysyms.h

/usr/include/gtk-2.0/gdk/gdkkeysyms.h

/usr/local/lib/ruby/gems/2.0.0/gems/gtk2-3.0.8/ext/gtk2/rbgdkkeysyms.h

Good afternoon.

Quote:

Originally Posted by popwizard (Post 5747786)

I must have installed something that put the proper files down for it to install.

Yes.

Code:

sudo gem install gtk2

ERROR:  Error installing gtk2:

        glib2 requires Ruby version >= 2.1.0.

End of story. Ω

Code:

user@computer:~/lich_git/dr-scripts$ ruby -v

ruby 2.0.0p648 (2015-12-16 revision 53162) [x86_64-linux]



user@computer:~/lich_git/dr-scripts$ gem list



*** LOCAL GEMS ***



atk (3.0.8)

bigdecimal (1.2.0)

cairo (1.15.2)

curses (1.0.0)

gdk_pixbuf2 (3.0.8)

glib2 (3.0.8)

gtk2 (3.0.8)

hitimes (1.2.4)

httpclient (2.8.2.2)

io-console (0.4.2)

json (1.7.7)

mime-types (3.1)

mime-types-data (3.2016.0521)

minitest (4.3.2)

pango (3.0.8)

pkg-config (1.1.7)

promise_pool (0.9.0)

psych (2.0.0)

rake (0.9.6)

rdoc (4.0.0)

rest-builder (0.9.1)

rest-core (4.0.0)

rest-firebase (1.1.0)

sqlite3 (1.3.11)

test-unit (2.0.0.0)

timers (4.1.1)

As you can see, I have successfully installed Ruby 2.0.0 with gtk2 -v 3.0.8 last year (on 5 separate computers) running Ubuntu 16.04 LTS. I need to understand what changed and how to make it compile. I tried a newer Ruby with newer gtk but the application does not work.

Quote:

Originally Posted by popwizard (Post 5748125)

I was able to make gtk2 3.1.8 work after another gem uninstall and install. The application now works. I am still curious why I could not do the same process I did a year ago on 5 computers. I am going to mark closed/resolved for now.