From: Tom Cloyd <tomcloyd@...>
Date: 2008-07-19T11:13:42+09:00
Subject: Re: compile from source - how difficult?

Douglas A. Seifert wrote:
> Tom Cloyd wrote:
>> Martin DeMello wrote:
>>> On Fri, Jul 18, 2008 at 3:34 PM, Tom Cloyd <tomcloyd@comcast.net> wrote:
>>>> On a fresh install of Kubuntu Linux (ver. 8.04.01), I'm not having 
>>>> good day
>>>> trying to get ruby and rubygems back and functional.
>>>
>>> I got webby installed under Ubuntu 8.04 without having to compile
>>> anything from source. I did face some other issues, though - see
>>> http://markmail.org/message/apqjib2ftfr5dukk
>>>
>>> Since your immediate problem appears to be pthreads-related, see if
>>> you have the following installed:
>>>
>>> libpthread-stubs0
>>> libpthread-stubs0-dev
>>>
>>> martin
>>>
>>>
>>
>> Here's what's installed, apparently -
>>
>> $ locate libpthread
>> /lib/libpthread-2.7.so
>> /lib/libpthread.so.0
>> /lib/tls/i686/cmov/libpthread-2.7.so
>> /lib/tls/i686/cmov/libpthread.so.0
>>
>> So, I went to Adept and found the two things (packages? modules? I 
>> haven't a clue) an installed them.
>>
>> Then...
>>
>> $ sudo gem install webby
>> [sudo] password for tomc:
>> Building native extensions.  This could take a while...
>> ERROR:  Error installing webby:
>>         ERROR: Failed to build gem native extension.
>>
>> /usr/bin/ruby1.8 extconf.rb install webby
>> checking for main() in -lpthread... 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.
>>
>> 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/bin/ruby1.8
>>         --with-pthreadlib
>>         --without-pthreadlib
>>
>>
>> Gem files will remain installed in 
>> /usr/lib/ruby/gems/1.8/gems/eventmachine-0.12.0 for inspection.
>> Results logged to 
>> /usr/lib/ruby/gems/1.8/gems/eventmachine-0.12.0/ext/gem_make.out
>>
>>
>> This was what was happening before.
>>
>> Checking the mkmf.log file mentioned above, I find:
>>
>> have_library: checking for main() in -lpthread... -------------------- no
>>
>> "cc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I. 
>> -fno-strict-aliasing -g -g -O2  -fPIC conftest.c  -L"." -L"/usr/lib" 
>> -L. -Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic 
>> -lruby1.8-static -lpthread  -lpthread -ldl -lcrypt -lm   -lc"
>> /usr/bin/ld: crt1.o: No such file: No such file or directory
>> collect2: ld returned 1 exit status
>> checked program was:
>> /* begin */
>> 1: /*top*/
>> 2: int main() { return 0; }
>> 3: int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
>> /* end */
>>
>> "cc -o conftest -I. -I/usr/lib/ruby/1.8/i486-linux -I. 
>> -fno-strict-aliasing -g -g -O2  -fPIC conftest.c  -L"." -L"/usr/lib" 
>> -L. -Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic 
>> -lruby1.8-static -lpthread  -lpthread -ldl -lcrypt -lm   -lc"
>> /usr/bin/ld: crt1.o: No such file: No such file or directory
>> collect2: ld returned 1 exit status
>> checked program was:
>> /* begin */
>> 1: /*top*/
>> 2: int main() { return 0; }
>> 3: int t() { main(); return 0; }
>> /* end */
>>
>> --------------------
>>
>> Then, checking 
>> /usr/lib/ruby/gems/1.8/gems/eventmachine-0.12.0/ext/gem_make.out 
>> (mentioned in the webby install effort console output, above), I find 
>> simply a repetition of the error output printed to the console as a 
>> result of the webby install attempt.
>>
>> Sadly, I cannot make sense of any of this, so I'm very open to 
>> suggestions at this point.
>>
>> Thanks!
>>
>> t.
> On ubuntu, to compile anything, you should install the build-essential 
> package:
> 
> $ sudo apt-get install build-essential
> 
> You may also have to install the ruby1.8-dev package as well:
> 
> $ sudo apt-get install ruby1.8-dev
> 
> Good luck.  When compiling gems, you usually will need dev version of 
> any library that the gem has a dependency on.
> 
> -Doug Seifert
> 
> 
> 

Thanks, Doug. I'll probably give this a try. Since what I have now isn't 
working too well. New adventures in Ruby/Kubuntu, for the ever hopeful, 
and increasingly desperate! ~t.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Tom Cloyd, MS MA, LMHC - Private practice Psychotherapist
Bellingham, Washington, U.S.A: (360) 920-1226
<< tc@tomcloyd.com >> (email)
<< TomCloyd.com >> (website & psychotherapy weblog)
<< sleightmind.wordpress.com >> (mental health issues weblog)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~