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

[Dr. Jonny Birkhan]

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?

Thanks in advance and best regards,

Jonny Birkhan

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 Dr. Jonny Birkhan
 Ltg. Steuerung S-DALINAC/IT
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 Technische Universität Darmstadt
 Institut für Kernpyhsik / FB 5
 AG Pietralla
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 Tel.: +0496151-16 21740
 Fax: +0496151-16 23305

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test.c
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