Re: [Help-gsl] Problems with compiling Non Linear Fit Example -Solved

[Dr. Jonny Birkhan]

Dear Jerome,

my problem associated with compiling of the Non-Linear Fit Example could 
be solved by your hint, using the dedicated path to the libraries:

gcc -L/usr/local/lib -o fit fit.c -lm -lgsl -lgslcblas

I have used a Linux Mint 4.4.0-119-generic.

The gsl 2.4 was installed manually.

Best regards and thanks a lot for your hints!

Jonny



Am 17.02.2018 um 07:30 schrieb Dr. Jonny Birkhan:
> Dear Jerome,
>
> thanks a lot for your reply.
>
> I have started working through your comments.
>
> Concerning with using the standard ubuntu package I got the following:
>
> 1. I installed a completly fresh linux mint. No manual configuration.
>
> 2. Compiling the test.c (gcc -o test test.c -lm -lgsl -lgslcblas) led 
> to the error that stdlib.h could not be found.
>
> 3. Installing libc6-dev could solve this issue.
>
> 4. But then I get the error message "fatal error: 
> gsl/gsl_multifit_nlinear.h: file not found"
>
> The reason seems to be that there is only a gsl_multifit_nlin.h in 
> /usr/include/gsl. The gsl version is 2.1.
>
> This was the reason why I installed gsl-2.4 manually for the test case 
> I have reported on in my first mail.
>
> If I switch to gsl_multifit_nlin.h in my source code, than a huge 
> amount of functions like ....something_nlinear_.... cause warnings etc.
>
> I will work further on that problem using your comments and will give 
> additional feedback.
>
> Thanks again and best regards,
>
> Jonny
>
>
> Am 16.02.2018 um 10:09 schrieb Jerome BENOIT:
> > Hi,
> >
> > On 16/02/18 12:45, Dr. Jonny Birkhan wrote:
> > > Dear all,
> > >
> > > I have installed gsl-2.4 on a
> > >
> > > Linux 4.4.0-103-generic #126-Ubuntu SMP Mon Dec 4 16:23:28 UTC 2017 
> > > x86_64.
> > >
> > > The libraries are installed in /usr/local/lib.
> > >
> > > My gcc version is: gcc (Ubuntu 5.4.0-6ubuntu1~16.04.6) 5.4.0 20160609
> > >
> > >
> > > When I try to compile the Exponential Fitting Example I get the 
> > > following messages:
> > >
> > > gcc -LLIBDIR=/usr/local/lib -o test test.c -lm -lgsl -lgslcblas
> > >
> > > /tmp/ccuzgEIN.o:: In function `callback':
> > > test.c:(.text+0x2b1): undefined reference to 
> > > `gsl_multifit_nlinear_residual'
> > > test.c:(.text+0x2c1): undefined reference to 
> > > `gsl_multifit_nlinear_position'
> > > test.c:(.text+0x2d8): undefined reference to 
> > > `gsl_multifit_nlinear_rcond'
> > > /tmp/cclIWgcr.o: In function `main':
> > > test.c:(.text+0x386): undefined reference to 
> > > `gsl_multifit_nlinear_trust'
> > > test.c:(.text+0x399): undefined reference to 
> > > `gsl_multifit_nlinear_default_parameters'
> > > test.c:(.text+0x640): undefined reference to 
> > > `gsl_multifit_nlinear_alloc'
> > > test.c:(.text+0x665): undefined reference to 
> > > `gsl_multifit_nlinear_winit'
> > > test.c:(.text+0x671): undefined reference to 
> > > `gsl_multifit_nlinear_residual'
> > > test.c:(.text+0x6f6): undefined reference to 
> > > `gsl_multifit_nlinear_driver'
> > > test.c:(.text+0x708): undefined reference to `gsl_multifit_nlinear_jac'
> > > test.c:(.text+0x729): undefined reference to 
> > > `gsl_multifit_nlinear_covar'
> > > test.c:(.text+0x755): undefined reference to 
> > > `gsl_multifit_nlinear_trs_name'
> > > test.c:(.text+0x764): undefined reference to 
> > > `gsl_multifit_nlinear_name'
> > > test.c:(.text+0x78f): undefined reference to 
> > > `gsl_multifit_nlinear_niter'
> > > test.c:(.text+0xa9e): undefined reference to 
> > > `gsl_multifit_nlinear_free'
> > > collect2: error: ld returned 1 exit status
> > >
> > > I guess it's a problem with a missing library file. I couldn't find 
> > > any bug report on that problem.
> > >
> > > The source code is appended.
> > >
> > > Can you help me?
> > This looks like an installation issue:
> > 1] why do you not play with the GSL Ubuntu package instead ?
> > 2] if you want (but you do not want) to play with a /usr/local 
> > installation, make sue it does not interfer with the /usr installation:
> > in clear purge the libgsl-dev Ubuntu package and make sure the 
> > /usr/local/lib is taken into account ;
> > 3] the _best_idea_, since GSL 2.4 has been packaged for Debian 
> > testing, install (or ask to your superuser to do so)
> > the GSL 2.4 Ubuntu package suite on your box;
> > 4] try, $ gcc -I/usr/local/include -L/usr/local/lib -o test test.c 
> > -lgsl -lgslcblas -lm ## with relevant path .
> >
> >
> > > Thanks in advance and best regards,
> > hth,
> > Jerome
> >
> > > Jonny Birkhan

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 Dr. Jonny Birkhan
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