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Re: [Help-gsl] some problem while linking

From: Martin Jansche
Subject: Re: [Help-gsl] some problem while linking
Date: Wed, 27 Sep 2006 16:58:14 -0400

On 9/27/06, boufflet <address@hidden> wrote:

address@hidden ~]$ gcc gsl_try.c -o gsl_try
/tmp/ccgTr3Jx.o(.text+0x24): In function `main':
gsl_try.c: undefined reference to `gsl_matrix_alloc'
collect2: ld a retourné 1 code d'état d'exécution

Since you're calling a linker here, you need to tell it to link
against the GSL library.  An easy way to do this is:

 gcc -o gsl_try gsl_try.c `gsl-config --cflags --libs`

We get no error while using the '-c' option as:
address@hidden ~]$ gcc -c gsl_try.c

You don't get a linker error here because you're only invoking the
compiler, not the linker.

-- mj

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