From: Mark Bennett <mark@...>
Date: 2005-01-11T07:38:37+09:00
Subject: Re: Problems Using rb-gsl

Yoshiki:

Thank-you for your help I really appreciate it!  I did the things you 
suggested in your last email.

1) rb_gsl.so seems correct

[mark@www rb-gsl-1.6.0]$ ls -la /usr/local/lib/ruby/site_ruby/1.8/i686-linux/

total 1556

drwxr-xr-x    2 root     root         4096 Jan 10 15:40 .

drwxr-xr-x    4 root     root         4096 Jan 10 15:19 ..

-rw-r--r--    1 root     root          143 Jan 10 15:18 narray_config.h

-rw-r--r--    1 root     root         4823 Jan  4  2004 narray.h

-rwxr-xr-x    1 root     root       343577 Jan 10 15:19 narray.so

-r-xr-xr-x    1 root     root      1218609 Jan 10 15:40 rb_gsl.so

[mark@www rb-gsl-1.6.0]$ md5sum ext/rb_gsl.so

7e8fb48ce8c6c12e76b05fe2c46e0b20  ext/rb_gsl.so

[mark@www rb-gsl-1.6.0]$ md5sum /usr/local/lib/ruby/site_ruby/1.8/i686-linux/rb_gsl.so

7e8fb48ce8c6c12e76b05fe2c46e0b20  /usr/local/lib/ruby/site_ruby/1.8/i686-linux/rb_gsl.so


2) Added /usr/local/lib to /etc/ld.so.conf

This directory was missing from the list in ld.so.conf but I added it.  
The file now looks like this:

[mark@www rb-gsl-1.6.0]$ cat /etc/ld.so.conf

/usr/kerberos/lib

/usr/X11R6/lib

/usr/lib/qt-3.0.5/lib

/usr/lib/mysql

/usr/local/lib


After doing both these things, I tried running a setup.rb clean, then 
ran though the build intructions again with the same outcome.  Is there 
any other information I can provide that might be helpful?

Thanks! :-)

-Mark


Yoshiki Tsunesada wrote:

>  Hi Mark,
>
>  I've never found the problems in my test,
>on MacOS X and Redhat 9.0. Please check the
>followings and try again.
>
>  * The shared object
>      /usr/local/lib/ruby/site_ruby/1.8/i686-linux/rb_gsl.so
>    is copired correctly? Check with ext/rb_gsl.so, or copy
>    it by-hand.
>  * Add an entry "/usr/local/lib" in /etc/ld.so.conf.
>
>  Sorry for inconvenience.
>  Yoshiki
>
>On Tue, 11 Jan 2005 06:22:17 +0900, Mark Bennett wrote:
>  
>
>>I'm trying to use rb-gsl in an application I'm writing and am able to 
>>use it on Mac OS X but not Linux.  On an old Red Hat 7.3 box I see 
>>the following error messages when compiling use, 'ruby setup.rb 
>>setup':
>>
>>gcc -fPIC -I../include -Wall -I/usr/local/include  -I. 
>>-I/usr/local/lib/ruby/1.8/i686-linux 
>>-I/usr/local/lib/ruby/1.8/i686-linux 
>>-I/home/mark/versioned/praxis/sbcalc/third_party/rb-gsl-1.6.0/ext   
>>-c wavelet.c
>>cc1: warning: changing search order for system directory 
>>"/usr/local/include"
>>cc1: warning:   as it has already been specified as a non-system directory
>>
>>It says this for all files being compiled.  When I try to run any of 
>>the sample applications included with rb-gsl I see the message:
>>
>>/usr/local/lib/ruby/site_ruby/1.8/i686-linux/rb_gsl.so: libgsl.so.0: 
>>cannot open shared object file: No such file or directory - 
>>/usr/local/lib/ruby/site_ruby/1.8/i686-linux/rb_gsl.so (LoadError)
>>       from /usr/local/lib/ruby/site_ruby/1.8/gsl.rb:1
>>       from cheb.rb:2:in `require'
>>       from cheb.rb:2
>>
>>This same procedure works just find on my Mac.  I've run ldconfig to 
>>make sure all my GSL libraries are found, and I run 'make test' after 
>>installing GSL.  All tests passed.
>>
>>Does anyone out there have a suggestion for what to do?
>>
>>Thanks!
>>
>>-Mark
>>    
>>