Can't install gems after a new ubuntu install

M

Max Williams

Sorry if this is the wrong forum...

Previously i'd been using ubuntu in a VM in windows. Finally i've taken
the plunge and wiped windows completely and done a proper ubuntu
install. (which was the easiest OS install i've EVER done btw - no
driver hassles or anything).

Anyway, i'm trying to get everything set up again for my work (rails
dev). I've installed ruby and ruby-gems with apt. Now i'm trying to
get some more gems, but i keep getting this problem (for hpricot in this
case but i also had it with ferret).
max@max-laptop:~$ sudo gem install hpricot
Select which gem to install for your platform (i486-linux)
1. hpricot 0.6 (jruby)
2. hpricot 0.6 (mswin32)
3. hpricot 0.6 (ruby)
4. hpricot 0.5 (ruby)
5. hpricot 0.5 (mswin32)
6. Skip this gem
7. Cancel installation
Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install hpricot
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
from extconf.rb:1


Gem files will remain installed in /var/lib/gems/1.8/gems/hpricot-0.6 for >inspection.
Results logged to /var/lib/gems/1.8/gems/hpricot-0.6/ext/hpricot_scan/gem_make.out

Doing "gem list" gives me these:
 
M

Max Williams

Actually, looking at this error "no such file to load -- mkmf"
makes me think that maybe i need to install 'make': is that the case?
If so, is it just a simple "sudo apt-get install make"?
 
M

Max Williams

Doh, just checked, i have make installed already. I'm going to shut up
and let someone else answer now :)
 
P

phlip

Max said:
Doh, just checked, i have make installed already. I'm going to shut up
and let someone else answer now :)

aptitude ruby-full will get you ruby1.8-dev. Does this show it?

aptitude search ruby1.8-dev | grep ^i

I think that's the next step towards mkmf. You also need a little gcc!
 
M

Max Williams

phlip said:
aptitude ruby-full will get you ruby1.8-dev. Does this show it?

aptitude search ruby1.8-dev | grep ^i

I think that's the next step towards mkmf. You also need a little gcc!

Thanks philip - i am getting closer! Following the instructions on this
page:
http://daniel.lorch.cc/docs/rails_install_debian/

i did "apt-get install ruby1.8-dev" and now i get this massive error
report (follows). In reference to 'a little gcc' do you mean that i
need gcc to compile the c code used in the gems? Is that just an
apt-get?

max@max-laptop:~$ sudo gem install hpricot
Select which gem to install for your platform (i486-linux)
1. hpricot 0.6 (jruby)
2. hpricot 0.6 (mswin32)
3. hpricot 0.6 (ruby)
4. hpricot 0.5 (ruby)
5. hpricot 0.5 (mswin32)
6. Skip this gem
7. Cancel installation
Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install hpricot
checking for main() in -lc... no
creating Makefile

make
cc -I. -I. -I/usr/lib/ruby/1.8/i486-linux -I. -fPIC
-fno-strict-aliasing -g -g -O2 -fPIC -c hpricot_scan.c
In file included from ext/hpricot_scan/hpricot_scan.rl:9:
/usr/lib/ruby/1.8/i486-linux/ruby.h:40:21: error: stdlib.h: No such file
or directory
/usr/lib/ruby/1.8/i486-linux/ruby.h:44:21: error: string.h: No such file
or directory
/usr/lib/ruby/1.8/i486-linux/ruby.h:54:19: error: stdio.h: No such file
or directory
/usr/lib/ruby/1.8/i486-linux/ruby.h:71:20: error: alloca.h: No such file
or directory
In file included from
/usr/lib/gcc/i486-linux-gnu/4.2.3/include/syslimits.h:7,
from
/usr/lib/gcc/i486-linux-gnu/4.2.3/include/limits.h:11,
from /usr/lib/ruby/1.8/i486-linux/ruby.h:91,
from ext/hpricot_scan/hpricot_scan.rl:9:
/usr/lib/gcc/i486-linux-gnu/4.2.3/include/limits.h:122:61: error:
limits.h: No such file or directory
In file included from /usr/lib/ruby/1.8/i486-linux/ruby.h:718,
from ext/hpricot_scan/hpricot_scan.rl:9:
/usr/lib/ruby/1.8/i486-linux/missing.h:16:24: error: sys/time.h: No such
file or directory
/usr/lib/ruby/1.8/i486-linux/missing.h:25:25: error: sys/types.h: No
such file or directory
In file included from /usr/lib/ruby/1.8/i486-linux/ruby.h:719,
from ext/hpricot_scan/hpricot_scan.rl:9:
/usr/lib/ruby/1.8/i486-linux/intern.h:219: error: expected declaration
specifiers or ‘...’ before ‘fd_set’
/usr/lib/ruby/1.8/i486-linux/intern.h:219: error: expected declaration
specifiers or ‘...’ before ‘fd_set’
/usr/lib/ruby/1.8/i486-linux/intern.h:219: error: expected declaration
specifiers or ‘...’ before ‘fd_set’
/usr/lib/ruby/1.8/i486-linux/intern.h:219: warning: ‘struct timeval’
declared inside parameter list
/usr/lib/ruby/1.8/i486-linux/intern.h:219: warning: its scope is only
this definition or declaration, which is probably not what you want
/usr/lib/ruby/1.8/i486-linux/intern.h:220: warning: ‘struct timeval’
declared inside parameter list
/usr/lib/ruby/1.8/i486-linux/intern.h:455: warning: parameter names
(without types) in function declaration
In file included from ext/hpricot_scan/hpricot_scan.rl:9:
/usr/lib/ruby/1.8/i486-linux/ruby.h:728:21: error: pthread.h: No such
file or directory
In file included from ext/hpricot_scan/hpricot_scan.rl:9:
/usr/lib/ruby/1.8/i486-linux/ruby.h:730: error: expected ‘=’, ‘,’, ‘;’,
‘asm’ or ‘__attribute__’ before ‘rb_nativethread_t’
ext/hpricot_scan/hpricot_scan.rl: In function ‘hpricot_scan’:
ext/hpricot_scan/hpricot_scan.rl:185: warning: incompatible implicit
declaration of built-in function ‘memcpy’
ext/hpricot_scan/hpricot_scan.rl:244: warning: incompatible implicit
declaration of built-in function ‘memmove’
make: *** [hpricot_scan.o] Error 1


Gem files will remain installed in /var/lib/gems/1.8/gems/hpricot-0.6
for inspection.
Results logged to
/var/lib/gems/1.8/gems/hpricot-0.6/ext/hpricot_scan/gem_make.out
 
M

Max Williams

phlip said:
Also throw in libc6 !

Thanks for all your advice phlip - before i get all these would you mind
telling me what they are? And are they all gettable with apt-get?

thanks again -max
 
P

phlip

Max said:
Thanks for all your advice phlip - before i get all these would you mind
telling me what they are? And are they all gettable with apt-get?

You have some googling to do!

sudo aptitude install libc6-dev
 
M

miles.sterrett

All fixed now, thanks again for all your help.

Have a nice weekend :)

As a note, for those that may come across this thread in the future...

'sudo apt-get install build-essential'

... likely would have helped. It is a meta-package that installs gcc,
g++, make, and libc6-dev.

MilesZS
 
D

Dick Davies

As a note, for those that may come across this thread in the future...

'sudo apt-get install build-essential'


Bit odd that it's not a dependency of the ruby dev package, isn't it ?
 
M

Max Williams

Dick said:
Bit odd that it's not a dependency of the ruby dev package, isn't it ?

Hey guys. I'm not sorted after all, argh. Humbly asking for more
help...

My problem is with trying to install the mysql gem.
I did the build-essential install above, that worked fine, but i get ths
when i try to install the mysql gem:
max@max-laptop:~$ sudo gem install mysql
Need to update 1 gems from http://gems.rubyforge.org
.
complete
Select which gem to install for your platform (i486-linux)
1. mysql 2.7.3 (mswin32)
2. mysql 2.7.1 (mswin32)
3. mysql 2.7 (ruby)
4. mysql 2.6 (ruby)
5. Skip this gem
6. Cancel installation
Building native extensions. This could take a while...
ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)
ERROR: Failed to build gem native extension.

ruby extconf.rb install mysql
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... yes
checking for mysql_query() in -lmysqlclient... no
*** 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.

I looked in the relevant mkmf.log file and found a load of stuff that's
way over my head. There's loads of errors in it, i'll just post the
first up:
 
T

Tristin Davis

[Note: parts of this message were removed to make it a legal post.]

I installed libmysqlclient15-dev or libmysqlclient15off to fix that
problem. I can't remember which one. :)
 
M

Max Williams

Tristin said:
I installed libmysqlclient15-dev or libmysqlclient15off to fix that
problem. I can't remember which one. :)



On Sun, Jul 13, 2008 at 6:12 AM, Max Williams
<[email protected]>

The first one fixed it, thanks a lot! All i have left to get working
now is a memcache server...
 

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